[{"date_updated":"2026-02-05T09:48:27Z","oa":"1","author":[{"full_name":"Wagner, Tobias","last_name":"Wagner","first_name":"Tobias"},{"full_name":"Tiemann, Michael","id":"23547","orcid":"0000-0003-1711-2722","last_name":"Tiemann","first_name":"Michael"}],"volume":16,"main_file_link":[{"open_access":"1"}],"doi":"10.3390/nano16030203","publication_status":"published","publication_identifier":{"issn":["2079-4991"]},"citation":{"mla":"Wagner, Tobias, and Michael Tiemann. “Proton-Conducting Sulfonated Periodic Mesoporous Organosilica.” <i>Nanomaterials</i>, vol. 16, no. 3, 203, MDPI AG, 2026, doi:<a href=\"https://doi.org/10.3390/nano16030203\">10.3390/nano16030203</a>.","short":"T. Wagner, M. Tiemann, Nanomaterials 16 (2026).","bibtex":"@article{Wagner_Tiemann_2026, title={Proton-Conducting Sulfonated Periodic Mesoporous Organosilica}, volume={16}, DOI={<a href=\"https://doi.org/10.3390/nano16030203\">10.3390/nano16030203</a>}, number={3203}, journal={Nanomaterials}, publisher={MDPI AG}, author={Wagner, Tobias and Tiemann, Michael}, year={2026} }","apa":"Wagner, T., &#38; Tiemann, M. (2026). Proton-Conducting Sulfonated Periodic Mesoporous Organosilica. <i>Nanomaterials</i>, <i>16</i>(3), Article 203. <a href=\"https://doi.org/10.3390/nano16030203\">https://doi.org/10.3390/nano16030203</a>","ama":"Wagner T, Tiemann M. Proton-Conducting Sulfonated Periodic Mesoporous Organosilica. <i>Nanomaterials</i>. 2026;16(3). doi:<a href=\"https://doi.org/10.3390/nano16030203\">10.3390/nano16030203</a>","chicago":"Wagner, Tobias, and Michael Tiemann. “Proton-Conducting Sulfonated Periodic Mesoporous Organosilica.” <i>Nanomaterials</i> 16, no. 3 (2026). <a href=\"https://doi.org/10.3390/nano16030203\">https://doi.org/10.3390/nano16030203</a>.","ieee":"T. Wagner and M. Tiemann, “Proton-Conducting Sulfonated Periodic Mesoporous Organosilica,” <i>Nanomaterials</i>, vol. 16, no. 3, Art. no. 203, 2026, doi: <a href=\"https://doi.org/10.3390/nano16030203\">10.3390/nano16030203</a>."},"intvolume":"        16","_id":"63883","user_id":"23547","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"article_number":"203","type":"journal_article","status":"public","publisher":"MDPI AG","date_created":"2026-02-05T09:46:20Z","title":"Proton-Conducting Sulfonated Periodic Mesoporous Organosilica","quality_controlled":"1","issue":"3","year":"2026","language":[{"iso":"eng"}],"publication":"Nanomaterials","abstract":[{"lang":"eng","text":"Proton exchange membranes (PEMs) are essential for fuel cells, yet conventional materials like Nafion suffer from humidity dependence and limited thermal stability. This study introduces sulfonated phenylene-bridged periodic mesoporous organosilicas (PMOs) as promising inorganic–organic hybrid PEMs, synthesized via surfactant-templating with varying alkyl chain lengths for different mesopore sizes. Post-synthetic functionalization involves nitration of phenylene moieties, reduction to amines, and ring-opening of propane or butane sultones to graft sulfonic acid groups via flexible spacers, achieving homogeneous distribution along pore walls. Post-functionalization is confirmed by powder X-ray diffraction (PXRD), revealing preserved 2D hexagonal p6mm ordering and phenylene stacking. N2 physisorption shows type IV isotherms with reduced pore volumes and pore sizes. 1H NMR is used to quantify functionalization degrees. Impedance spectroscopy on pressed pellets demonstrates proton conductivities up to 2 × 10−3 S cm−1 at 30 °C and 90% RH, depending on the functionalization degree, confirming sulfonic acid-mediated conduction."}]},{"type":"journal_article","status":"public","_id":"63099","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"user_id":"23547","article_type":"original","article_number":"149697","publication_identifier":{"issn":["0141-8130"]},"publication_status":"published","intvolume":"       338","citation":{"ama":"Moorlach BW, Epkenhans R, Ju D, et al. DsRNA-based carriers with pH-tuneable release kinetics for effective control of Psylliodes chrysocephala. <i>International Journal of Biological Macromolecules</i>. 2026;338. doi:<a href=\"https://doi.org/10.1016/j.ijbiomac.2025.149697\">10.1016/j.ijbiomac.2025.149697</a>","chicago":"Moorlach, Benjamin W., Robert Epkenhans, Di Ju, Banuja Ravidas, Christian Weinberger, Michael Tiemann, Judith Buente, et al. “DsRNA-Based Carriers with PH-Tuneable Release Kinetics for Effective Control of Psylliodes Chrysocephala.” <i>International Journal of Biological Macromolecules</i> 338 (2026). <a href=\"https://doi.org/10.1016/j.ijbiomac.2025.149697\">https://doi.org/10.1016/j.ijbiomac.2025.149697</a>.","ieee":"B. W. Moorlach <i>et al.</i>, “DsRNA-based carriers with pH-tuneable release kinetics for effective control of Psylliodes chrysocephala,” <i>International Journal of Biological Macromolecules</i>, vol. 338, Art. no. 149697, 2026, doi: <a href=\"https://doi.org/10.1016/j.ijbiomac.2025.149697\">10.1016/j.ijbiomac.2025.149697</a>.","apa":"Moorlach, B. W., Epkenhans, R., Ju, D., Ravidas, B., Weinberger, C., Tiemann, M., Buente, J., Gaerner, M., Wortmann, M., Scholten, S., Rostas, M., Keil, W., &#38; Patel, A. V. (2026). DsRNA-based carriers with pH-tuneable release kinetics for effective control of Psylliodes chrysocephala. <i>International Journal of Biological Macromolecules</i>, <i>338</i>, Article 149697. <a href=\"https://doi.org/10.1016/j.ijbiomac.2025.149697\">https://doi.org/10.1016/j.ijbiomac.2025.149697</a>","mla":"Moorlach, Benjamin W., et al. “DsRNA-Based Carriers with PH-Tuneable Release Kinetics for Effective Control of Psylliodes Chrysocephala.” <i>International Journal of Biological Macromolecules</i>, vol. 338, 149697, Elsevier BV, 2026, doi:<a href=\"https://doi.org/10.1016/j.ijbiomac.2025.149697\">10.1016/j.ijbiomac.2025.149697</a>.","short":"B.W. Moorlach, R. Epkenhans, D. Ju, B. Ravidas, C. Weinberger, M. Tiemann, J. Buente, M. Gaerner, M. Wortmann, S. Scholten, M. Rostas, W. Keil, A.V. Patel, International Journal of Biological Macromolecules 338 (2026).","bibtex":"@article{Moorlach_Epkenhans_Ju_Ravidas_Weinberger_Tiemann_Buente_Gaerner_Wortmann_Scholten_et al._2026, title={DsRNA-based carriers with pH-tuneable release kinetics for effective control of Psylliodes chrysocephala}, volume={338}, DOI={<a href=\"https://doi.org/10.1016/j.ijbiomac.2025.149697\">10.1016/j.ijbiomac.2025.149697</a>}, number={149697}, journal={International Journal of Biological Macromolecules}, publisher={Elsevier BV}, author={Moorlach, Benjamin W. and Epkenhans, Robert and Ju, Di and Ravidas, Banuja and Weinberger, Christian and Tiemann, Michael and Buente, Judith and Gaerner, Maik and Wortmann, Martin and Scholten, Stefan and et al.}, year={2026} }"},"date_updated":"2025-12-17T07:27:57Z","oa":"1","volume":338,"author":[{"last_name":"Moorlach","full_name":"Moorlach, Benjamin W.","first_name":"Benjamin W."},{"full_name":"Epkenhans, Robert","last_name":"Epkenhans","first_name":"Robert"},{"first_name":"Di","full_name":"Ju, Di","last_name":"Ju"},{"first_name":"Banuja","last_name":"Ravidas","full_name":"Ravidas, Banuja"},{"first_name":"Christian","full_name":"Weinberger, Christian","id":"11848","last_name":"Weinberger"},{"full_name":"Tiemann, Michael","id":"23547","orcid":"0000-0003-1711-2722","last_name":"Tiemann","first_name":"Michael"},{"first_name":"Judith","full_name":"Buente, Judith","last_name":"Buente"},{"last_name":"Gaerner","full_name":"Gaerner, Maik","first_name":"Maik"},{"first_name":"Martin","full_name":"Wortmann, Martin","last_name":"Wortmann"},{"last_name":"Scholten","full_name":"Scholten, Stefan","first_name":"Stefan"},{"first_name":"Michael","last_name":"Rostas","full_name":"Rostas, Michael"},{"first_name":"Waldemar","last_name":"Keil","full_name":"Keil, Waldemar"},{"first_name":"Anant V.","full_name":"Patel, Anant V.","last_name":"Patel"}],"doi":"10.1016/j.ijbiomac.2025.149697","main_file_link":[{"open_access":"1"}],"publication":"International Journal of Biological Macromolecules","abstract":[{"lang":"eng","text":"Spray-induced gene silencing (SIGS) employing double-stranded RNA (dsRNA) offers a promising, species-specific approach for protecting crops from insect pests such as the cabbage stem flea beetle (Psylliodes chrysocephala). However, the environmental instability of dsRNA presents a major limitation to its field application. In this study, we evaluate two distinct dsRNA formulation strategies for improved stability and delivery: a bottom-up approach using chitosan-based interpolyelectrolyte complexes (IPEC) and a top-down approach employing functionalized mesoporous silica carriers (SBA-15). Both systems were comprehensively characterized in terms of size, surface potential, porosity, and release behavior. The results revealed that IPECs exhibited release kinetics that were approximately one order of magnitude faster than those of SBA-15 across all tested conditions. The two formulations significantly improved dsRNA stability against UV and heat exposure compared to free dsRNA. In feeding assays with P. chrysocephala, both carriers achieved comparable gene silencing efficacy, though dsRNA@IPEC induced more immediate effects, while dsRNA@SBA-15 displayed delayed but ultimately stronger reduction in consumed leaf area, consistent with its slower release kinetics. We demonstrate that despite structural and mechanistic differences, both delivery platforms effectively stabilized and delivered dsRNA, and offered distinct advantages depending on application needs. This work highlights how formulation strategies are key to successful SIGS and supports the development of robust, field-adaptable formulation technologies for sustainable pest management."}],"language":[{"iso":"eng"}],"quality_controlled":"1","year":"2026","publisher":"Elsevier BV","date_created":"2025-12-15T09:54:41Z","title":"DsRNA-based carriers with pH-tuneable release kinetics for effective control of Psylliodes chrysocephala"},{"language":[{"iso":"eng"}],"publication":"Journal of Materials Chemistry C","abstract":[{"lang":"eng","text":"<jats:p>Defect engineering offers an effective route to tailor the local coordination environment, gas transport and excited-state processes in metal-organic frameworks (MOFs). We establish a quantitative structure-property relationship linking defect-modulated porosity...</jats:p>"}],"publisher":"Royal Society of Chemistry (RSC)","date_created":"2026-01-23T13:26:36Z","title":"Defect Structure-Performance Correlation in Eu³⁺@UiO-66: Design of Coordination Sites for Rapid Optical O₂ Sensing","quality_controlled":"1","year":"2026","_id":"63721","user_id":"23547","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"type":"journal_article","status":"public","oa":"1","date_updated":"2026-03-26T16:37:56Z","author":[{"first_name":"Zhenyu","last_name":"Zhao","full_name":"Zhao, Zhenyu"},{"first_name":"Michael","full_name":"Tiemann, Michael","id":"23547","last_name":"Tiemann","orcid":"0000-0003-1711-2722"}],"volume":14,"main_file_link":[{"open_access":"1"}],"doi":"10.1039/d5tc04319k","publication_status":"published","publication_identifier":{"issn":["2050-7526","2050-7534"]},"citation":{"chicago":"Zhao, Zhenyu, and Michael Tiemann. “Defect Structure-Performance Correlation in Eu<sup>3</sup><sup>+</sup>@UiO-66: Design of Coordination Sites for Rapid Optical O₂ Sensing.” <i>Journal of Materials Chemistry C</i> 14 (2026): 4743–52. <a href=\"https://doi.org/10.1039/d5tc04319k\">https://doi.org/10.1039/d5tc04319k</a>.","ieee":"Z. Zhao and M. Tiemann, “Defect Structure-Performance Correlation in Eu<sup>3</sup><sup>+</sup>@UiO-66: Design of Coordination Sites for Rapid Optical O₂ Sensing,” <i>Journal of Materials Chemistry C</i>, vol. 14, pp. 4743–4752, 2026, doi: <a href=\"https://doi.org/10.1039/d5tc04319k\">10.1039/d5tc04319k</a>.","ama":"Zhao Z, Tiemann M. Defect Structure-Performance Correlation in Eu<sup>3</sup><sup>+</sup>@UiO-66: Design of Coordination Sites for Rapid Optical O₂ Sensing. <i>Journal of Materials Chemistry C</i>. 2026;14:4743-4752. doi:<a href=\"https://doi.org/10.1039/d5tc04319k\">10.1039/d5tc04319k</a>","apa":"Zhao, Z., &#38; Tiemann, M. (2026). Defect Structure-Performance Correlation in Eu<sup>3</sup><sup>+</sup>@UiO-66: Design of Coordination Sites for Rapid Optical O₂ Sensing. <i>Journal of Materials Chemistry C</i>, <i>14</i>, 4743–4752. <a href=\"https://doi.org/10.1039/d5tc04319k\">https://doi.org/10.1039/d5tc04319k</a>","bibtex":"@article{Zhao_Tiemann_2026, title={Defect Structure-Performance Correlation in Eu<sup>3</sup><sup>+</sup>@UiO-66: Design of Coordination Sites for Rapid Optical O₂ Sensing}, volume={14}, DOI={<a href=\"https://doi.org/10.1039/d5tc04319k\">10.1039/d5tc04319k</a>}, journal={Journal of Materials Chemistry C}, publisher={Royal Society of Chemistry (RSC)}, author={Zhao, Zhenyu and Tiemann, Michael}, year={2026}, pages={4743–4752} }","short":"Z. Zhao, M. Tiemann, Journal of Materials Chemistry C 14 (2026) 4743–4752.","mla":"Zhao, Zhenyu, and Michael Tiemann. “Defect Structure-Performance Correlation in Eu<sup>3</sup><sup>+</sup>@UiO-66: Design of Coordination Sites for Rapid Optical O₂ Sensing.” <i>Journal of Materials Chemistry C</i>, vol. 14, Royal Society of Chemistry (RSC), 2026, pp. 4743–52, doi:<a href=\"https://doi.org/10.1039/d5tc04319k\">10.1039/d5tc04319k</a>."},"page":"4743-4752","intvolume":"        14"},{"publication_status":"published","publication_identifier":{"issn":["1439-4235","1439-7641"]},"citation":{"ama":"Kothe L, Klippstein J, Kloß M, et al. Oxygen‐dependent Photoluminescence and Electrical Conductance of Zinc Tin Oxide (ZTO): A Modified Stern‐Volmer Description. <i>ChemPhysChem</i>. 2025;26:e202400984. doi:<a href=\"https://doi.org/10.1002/cphc.202400984\">10.1002/cphc.202400984</a>","ieee":"L. Kothe <i>et al.</i>, “Oxygen‐dependent Photoluminescence and Electrical Conductance of Zinc Tin Oxide (ZTO): A Modified Stern‐Volmer Description,” <i>ChemPhysChem</i>, vol. 26, p. e202400984, 2025, doi: <a href=\"https://doi.org/10.1002/cphc.202400984\">10.1002/cphc.202400984</a>.","chicago":"Kothe, Linda, Josefin Klippstein, Marvin Kloß, Marc Wengenroth, Michael Poeplau, Stephan Ester, and Michael Tiemann. “Oxygen‐dependent Photoluminescence and Electrical Conductance of Zinc Tin Oxide (ZTO): A Modified Stern‐Volmer Description.” <i>ChemPhysChem</i> 26 (2025): e202400984. <a href=\"https://doi.org/10.1002/cphc.202400984\">https://doi.org/10.1002/cphc.202400984</a>.","bibtex":"@article{Kothe_Klippstein_Kloß_Wengenroth_Poeplau_Ester_Tiemann_2025, title={Oxygen‐dependent Photoluminescence and Electrical Conductance of Zinc Tin Oxide (ZTO): A Modified Stern‐Volmer Description}, volume={26}, DOI={<a href=\"https://doi.org/10.1002/cphc.202400984\">10.1002/cphc.202400984</a>}, journal={ChemPhysChem}, publisher={Wiley}, author={Kothe, Linda and Klippstein, Josefin and Kloß, Marvin and Wengenroth, Marc and Poeplau, Michael and Ester, Stephan and Tiemann, Michael}, year={2025}, pages={e202400984} }","short":"L. Kothe, J. Klippstein, M. Kloß, M. Wengenroth, M. Poeplau, S. Ester, M. Tiemann, ChemPhysChem 26 (2025) e202400984.","mla":"Kothe, Linda, et al. “Oxygen‐dependent Photoluminescence and Electrical Conductance of Zinc Tin Oxide (ZTO): A Modified Stern‐Volmer Description.” <i>ChemPhysChem</i>, vol. 26, Wiley, 2025, p. e202400984, doi:<a href=\"https://doi.org/10.1002/cphc.202400984\">10.1002/cphc.202400984</a>.","apa":"Kothe, L., Klippstein, J., Kloß, M., Wengenroth, M., Poeplau, M., Ester, S., &#38; Tiemann, M. (2025). Oxygen‐dependent Photoluminescence and Electrical Conductance of Zinc Tin Oxide (ZTO): A Modified Stern‐Volmer Description. <i>ChemPhysChem</i>, <i>26</i>, e202400984. <a href=\"https://doi.org/10.1002/cphc.202400984\">https://doi.org/10.1002/cphc.202400984</a>"},"intvolume":"        26","page":"e202400984","author":[{"last_name":"Kothe","full_name":"Kothe, Linda","first_name":"Linda"},{"full_name":"Klippstein, Josefin","last_name":"Klippstein","first_name":"Josefin"},{"last_name":"Kloß","full_name":"Kloß, Marvin","first_name":"Marvin"},{"first_name":"Marc","full_name":"Wengenroth, Marc","last_name":"Wengenroth"},{"last_name":"Poeplau","full_name":"Poeplau, Michael","first_name":"Michael"},{"first_name":"Stephan","last_name":"Ester","full_name":"Ester, Stephan"},{"first_name":"Michael","full_name":"Tiemann, Michael","id":"23547","last_name":"Tiemann","orcid":"0000-0003-1711-2722"}],"volume":26,"date_updated":"2025-04-04T06:20:07Z","oa":"1","main_file_link":[{"open_access":"1"}],"doi":"10.1002/cphc.202400984","type":"journal_article","status":"public","user_id":"23547","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"_id":"58193","article_type":"original","quality_controlled":"1","year":"2025","date_created":"2025-01-15T14:12:34Z","publisher":"Wiley","title":"Oxygen‐dependent Photoluminescence and Electrical Conductance of Zinc Tin Oxide (ZTO): A Modified Stern‐Volmer Description","publication":"ChemPhysChem","abstract":[{"text":"Zinc tin oxide (ZTO) is investigated as a photoluminescent sensor for oxygen (O2); chemisorbed oxygen quenches the luminescence intensity. At the same time, ZTO is also studied as a resistive sensor; being an n‐type semiconductor, its electrical conductance decreases by adsorption of oxygen. Both phenomena can be exploited for quantitative O2 sensing. The respective sensor responses can be described by the same modified Stern‐Volmer model that distinguishes between accessible and non‐accessible luminescence centers or charge carriers, respectively. The impact of the temperature is studied in the range from room temperature up to 150 °C.","lang":"eng"}],"language":[{"iso":"eng"}]},{"publication_status":"published","publication_identifier":{"issn":["1932-7447","1932-7455"]},"quality_controlled":"1","issue":"19","year":"2025","citation":{"ama":"Kothe L, Kloß M, Wagner T, et al. Temperature Studies of Zinc Tin Oxide Photoluminescence for Optical O<sub>2</sub> Sensing. <i>The Journal of Physical Chemistry C</i>. 2025;129(19):9239-9245. doi:<a href=\"https://doi.org/10.1021/acs.jpcc.5c01678\">10.1021/acs.jpcc.5c01678</a>","chicago":"Kothe, Linda, Marvin Kloß, Tobias Wagner, Marc Wengenroth, Michael Poeplau, Stephan Ester, and Michael Tiemann. “Temperature Studies of Zinc Tin Oxide Photoluminescence for Optical O<sub>2</sub> Sensing.” <i>The Journal of Physical Chemistry C</i> 129, no. 19 (2025): 9239–45. <a href=\"https://doi.org/10.1021/acs.jpcc.5c01678\">https://doi.org/10.1021/acs.jpcc.5c01678</a>.","ieee":"L. Kothe <i>et al.</i>, “Temperature Studies of Zinc Tin Oxide Photoluminescence for Optical O<sub>2</sub> Sensing,” <i>The Journal of Physical Chemistry C</i>, vol. 129, no. 19, pp. 9239–9245, 2025, doi: <a href=\"https://doi.org/10.1021/acs.jpcc.5c01678\">10.1021/acs.jpcc.5c01678</a>.","mla":"Kothe, Linda, et al. “Temperature Studies of Zinc Tin Oxide Photoluminescence for Optical O<sub>2</sub> Sensing.” <i>The Journal of Physical Chemistry C</i>, vol. 129, no. 19, American Chemical Society (ACS), 2025, pp. 9239–45, doi:<a href=\"https://doi.org/10.1021/acs.jpcc.5c01678\">10.1021/acs.jpcc.5c01678</a>.","short":"L. Kothe, M. Kloß, T. Wagner, M. Wengenroth, M. Poeplau, S. Ester, M. Tiemann, The Journal of Physical Chemistry C 129 (2025) 9239–9245.","bibtex":"@article{Kothe_Kloß_Wagner_Wengenroth_Poeplau_Ester_Tiemann_2025, title={Temperature Studies of Zinc Tin Oxide Photoluminescence for Optical O<sub>2</sub> Sensing}, volume={129}, DOI={<a href=\"https://doi.org/10.1021/acs.jpcc.5c01678\">10.1021/acs.jpcc.5c01678</a>}, number={19}, journal={The Journal of Physical Chemistry C}, publisher={American Chemical Society (ACS)}, author={Kothe, Linda and Kloß, Marvin and Wagner, Tobias and Wengenroth, Marc and Poeplau, Michael and Ester, Stephan and Tiemann, Michael}, year={2025}, pages={9239–9245} }","apa":"Kothe, L., Kloß, M., Wagner, T., Wengenroth, M., Poeplau, M., Ester, S., &#38; Tiemann, M. (2025). Temperature Studies of Zinc Tin Oxide Photoluminescence for Optical O<sub>2</sub> Sensing. <i>The Journal of Physical Chemistry C</i>, <i>129</i>(19), 9239–9245. <a href=\"https://doi.org/10.1021/acs.jpcc.5c01678\">https://doi.org/10.1021/acs.jpcc.5c01678</a>"},"page":"9239-9245","intvolume":"       129","date_updated":"2025-05-16T06:16:18Z","publisher":"American Chemical Society (ACS)","author":[{"last_name":"Kothe","full_name":"Kothe, Linda","first_name":"Linda"},{"full_name":"Kloß, Marvin","last_name":"Kloß","first_name":"Marvin"},{"last_name":"Wagner","full_name":"Wagner, Tobias","first_name":"Tobias"},{"full_name":"Wengenroth, Marc","last_name":"Wengenroth","first_name":"Marc"},{"full_name":"Poeplau, Michael","last_name":"Poeplau","first_name":"Michael"},{"full_name":"Ester, Stephan","last_name":"Ester","first_name":"Stephan"},{"first_name":"Michael","id":"23547","full_name":"Tiemann, Michael","last_name":"Tiemann","orcid":"0000-0003-1711-2722"}],"date_created":"2025-05-07T12:15:41Z","volume":129,"title":"Temperature Studies of Zinc Tin Oxide Photoluminescence for Optical O<sub>2</sub> Sensing","doi":"10.1021/acs.jpcc.5c01678","type":"journal_article","publication":"The Journal of Physical Chemistry C","status":"public","_id":"59842","user_id":"23547","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"language":[{"iso":"eng"}]},{"type":"journal_article","status":"public","_id":"60815","user_id":"23547","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"article_type":"original","article_number":"e11190","publication_status":"published","publication_identifier":{"issn":["1616-301X","1616-3028"]},"citation":{"chicago":"Zhao, Zhenyu, Christian Weinberger, Jakob Steube, Matthias Bauer, Martin Brehm, and Michael Tiemann. “Fast‐Responding O<sub>2</sub> Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76).” <i>Advanced Functional Materials</i>, 2025. <a href=\"https://doi.org/10.1002/adfm.202511190\">https://doi.org/10.1002/adfm.202511190</a>.","ieee":"Z. Zhao, C. Weinberger, J. Steube, M. Bauer, M. Brehm, and M. Tiemann, “Fast‐Responding O<sub>2</sub> Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76),” <i>Advanced Functional Materials</i>, Art. no. e11190, 2025, doi: <a href=\"https://doi.org/10.1002/adfm.202511190\">10.1002/adfm.202511190</a>.","ama":"Zhao Z, Weinberger C, Steube J, Bauer M, Brehm M, Tiemann M. Fast‐Responding O<sub>2</sub> Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76). <i>Advanced Functional Materials</i>. Published online 2025. doi:<a href=\"https://doi.org/10.1002/adfm.202511190\">10.1002/adfm.202511190</a>","apa":"Zhao, Z., Weinberger, C., Steube, J., Bauer, M., Brehm, M., &#38; Tiemann, M. (2025). Fast‐Responding O<sub>2</sub> Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76). <i>Advanced Functional Materials</i>, Article e11190. <a href=\"https://doi.org/10.1002/adfm.202511190\">https://doi.org/10.1002/adfm.202511190</a>","mla":"Zhao, Zhenyu, et al. “Fast‐Responding O<sub>2</sub> Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76).” <i>Advanced Functional Materials</i>, e11190, Wiley, 2025, doi:<a href=\"https://doi.org/10.1002/adfm.202511190\">10.1002/adfm.202511190</a>.","bibtex":"@article{Zhao_Weinberger_Steube_Bauer_Brehm_Tiemann_2025, title={Fast‐Responding O<sub>2</sub> Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)}, DOI={<a href=\"https://doi.org/10.1002/adfm.202511190\">10.1002/adfm.202511190</a>}, number={e11190}, journal={Advanced Functional Materials}, publisher={Wiley}, author={Zhao, Zhenyu and Weinberger, Christian and Steube, Jakob and Bauer, Matthias and Brehm, Martin and Tiemann, Michael}, year={2025} }","short":"Z. Zhao, C. Weinberger, J. Steube, M. Bauer, M. Brehm, M. Tiemann, Advanced Functional Materials (2025)."},"date_updated":"2025-07-29T07:02:22Z","oa":"1","author":[{"first_name":"Zhenyu","last_name":"Zhao","full_name":"Zhao, Zhenyu"},{"full_name":"Weinberger, Christian","id":"11848","last_name":"Weinberger","first_name":"Christian"},{"first_name":"Jakob","orcid":"0000-0003-3178-4429","last_name":"Steube","id":"40342","full_name":"Steube, Jakob"},{"full_name":"Bauer, Matthias","id":"47241","orcid":"0000-0002-9294-6076","last_name":"Bauer","first_name":"Matthias"},{"last_name":"Brehm","id":"100167","full_name":"Brehm, Martin","first_name":"Martin"},{"first_name":"Michael","last_name":"Tiemann","orcid":"0000-0003-1711-2722","id":"23547","full_name":"Tiemann, Michael"}],"main_file_link":[{"open_access":"1"}],"doi":"10.1002/adfm.202511190","publication":"Advanced Functional Materials","abstract":[{"lang":"eng","text":"<jats:title>Abstract</jats:title><jats:p>The increasing demand for advanced sensing technologies drives the development of chemical sensors using innovative materials. In gas sensing, optical sensors are often used to detect gases such as CO, NO<jats:italic><jats:sub>x</jats:sub></jats:italic>, and O<jats:sub>2</jats:sub>. Oxygen sensors typically incorporate dyes into oxygen‐permeable matrices like polymers, silica, or zeolites. Alternatively, semiconductor surface chemistry can enable O<jats:sub>2</jats:sub> detection. However, these approaches are often limited by slow response and recovery times and low selectivity, restricting their practical applications. The metal‐organic framework MOF‐76(Eu) and its yttrium‐modified variant, MOF‐76(Eu/Y) are reported to exhibit highly reversible and fast optical responses to varying O<jats:sub>2</jats:sub> concentrations. Time‐resolved emission measurements are performed over short (seconds) and long (hours) timescales using N<jats:sub>2</jats:sub> and synthetic air mixtures. Cross‐sensitivity to humidity is analyzed. Multichannel scaling photon‐counting experiments confirm quenching at the linker level, as the emission lifetime remains nearly constant. Yttrium significantly improves stability and performance at room temperature. Structural and optical changes induced by yttrium are investigated. Additionally, MIL‐78(Eu), another Eu‐BTC‐based MOF with a different coordination environment, is synthesized. Unlike MOF‐76(Eu), MIL‐78(Eu) exhibits distinct optical properties but lacks a reversible response to O<jats:sub>2</jats:sub>. These results highlight the potential of MOF‐76‐based materials for high‐performance O<jats:sub>2</jats:sub> sensing.</jats:p>"}],"language":[{"iso":"eng"}],"quality_controlled":"1","year":"2025","publisher":"Wiley","date_created":"2025-07-29T06:59:19Z","title":"Fast‐Responding O<sub>2</sub> Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)"},{"status":"public","publication":"Chemistry of Materials","type":"journal_article","language":[{"iso":"eng"}],"_id":"60862","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"user_id":"23547","year":"2025","page":"5866–5873","intvolume":"        37","citation":{"ama":"Grotevent MJ, Kothe L, Lu Y, et al. Nontoxic and Rapid Chemical Bath Deposition for SnO<sub>2</sub> Electron Transporting Layers in Perovskite Solar Cells. <i>Chemistry of Materials</i>. 2025;37(15):5866–5873. doi:<a href=\"https://doi.org/10.1021/acs.chemmater.5c01081\">10.1021/acs.chemmater.5c01081</a>","apa":"Grotevent, M. J., Kothe, L., Lu, Y., Krajewska, C. J., Shih, M.-C., Tan, S., Tiemann, M., &#38; Bawendi, M. G. (2025). Nontoxic and Rapid Chemical Bath Deposition for SnO<sub>2</sub> Electron Transporting Layers in Perovskite Solar Cells. <i>Chemistry of Materials</i>, <i>37</i>(15), 5866–5873. <a href=\"https://doi.org/10.1021/acs.chemmater.5c01081\">https://doi.org/10.1021/acs.chemmater.5c01081</a>","mla":"Grotevent, Matthias J., et al. “Nontoxic and Rapid Chemical Bath Deposition for SnO<sub>2</sub> Electron Transporting Layers in Perovskite Solar Cells.” <i>Chemistry of Materials</i>, vol. 37, no. 15, American Chemical Society (ACS), 2025, pp. 5866–5873, doi:<a href=\"https://doi.org/10.1021/acs.chemmater.5c01081\">10.1021/acs.chemmater.5c01081</a>.","short":"M.J. Grotevent, L. Kothe, Y. Lu, C.J. Krajewska, M.-C. Shih, S. Tan, M. Tiemann, M.G. Bawendi, Chemistry of Materials 37 (2025) 5866–5873.","bibtex":"@article{Grotevent_Kothe_Lu_Krajewska_Shih_Tan_Tiemann_Bawendi_2025, title={Nontoxic and Rapid Chemical Bath Deposition for SnO<sub>2</sub> Electron Transporting Layers in Perovskite Solar Cells}, volume={37}, DOI={<a href=\"https://doi.org/10.1021/acs.chemmater.5c01081\">10.1021/acs.chemmater.5c01081</a>}, number={15}, journal={Chemistry of Materials}, publisher={American Chemical Society (ACS)}, author={Grotevent, Matthias J. and Kothe, Linda and Lu, Yongli and Krajewska, Chantalle J. and Shih, Meng-Chen and Tan, Shaun and Tiemann, Michael and Bawendi, Moungi G.}, year={2025}, pages={5866–5873} }","chicago":"Grotevent, Matthias J., Linda Kothe, Yongli Lu, Chantalle J. Krajewska, Meng-Chen Shih, Shaun Tan, Michael Tiemann, and Moungi G. Bawendi. “Nontoxic and Rapid Chemical Bath Deposition for SnO<sub>2</sub> Electron Transporting Layers in Perovskite Solar Cells.” <i>Chemistry of Materials</i> 37, no. 15 (2025): 5866–5873. <a href=\"https://doi.org/10.1021/acs.chemmater.5c01081\">https://doi.org/10.1021/acs.chemmater.5c01081</a>.","ieee":"M. J. Grotevent <i>et al.</i>, “Nontoxic and Rapid Chemical Bath Deposition for SnO<sub>2</sub> Electron Transporting Layers in Perovskite Solar Cells,” <i>Chemistry of Materials</i>, vol. 37, no. 15, pp. 5866–5873, 2025, doi: <a href=\"https://doi.org/10.1021/acs.chemmater.5c01081\">10.1021/acs.chemmater.5c01081</a>."},"publication_identifier":{"issn":["0897-4756","1520-5002"]},"quality_controlled":"1","publication_status":"published","issue":"15","title":"Nontoxic and Rapid Chemical Bath Deposition for SnO<sub>2</sub> Electron Transporting Layers in Perovskite Solar Cells","doi":"10.1021/acs.chemmater.5c01081","publisher":"American Chemical Society (ACS)","date_updated":"2025-08-12T13:37:42Z","volume":37,"date_created":"2025-08-04T11:40:31Z","author":[{"full_name":"Grotevent, Matthias J.","last_name":"Grotevent","first_name":"Matthias J."},{"full_name":"Kothe, Linda","last_name":"Kothe","first_name":"Linda"},{"last_name":"Lu","full_name":"Lu, Yongli","first_name":"Yongli"},{"first_name":"Chantalle J.","full_name":"Krajewska, Chantalle J.","last_name":"Krajewska"},{"first_name":"Meng-Chen","full_name":"Shih, Meng-Chen","last_name":"Shih"},{"full_name":"Tan, Shaun","last_name":"Tan","first_name":"Shaun"},{"full_name":"Tiemann, Michael","id":"23547","orcid":"0000-0003-1711-2722","last_name":"Tiemann","first_name":"Michael"},{"first_name":"Moungi G.","last_name":"Bawendi","full_name":"Bawendi, Moungi G."}]},{"doi":"10.1021/acssensors.5c00770","title":"Selective H<sub>2</sub> Gas Sensing Using ZIF-71/In-SnO<sub>2</sub> Bilayer Sensors: A Size-Selective Molecular Sieving Approach","author":[{"first_name":"Dominik","last_name":"Baier","full_name":"Baier, Dominik"},{"first_name":"Laureen","full_name":"Kieke, Laureen","last_name":"Kieke"},{"full_name":"Voth, Sven","last_name":"Voth","first_name":"Sven"},{"full_name":"Kloß, Marvin","last_name":"Kloß","first_name":"Marvin"},{"first_name":"Marten","full_name":"Huck, Marten","last_name":"Huck"},{"full_name":"Steinrück, Hans-Georg","id":"84268","orcid":"0000-0001-6373-0877","last_name":"Steinrück","first_name":"Hans-Georg"},{"first_name":"Michael","id":"23547","full_name":"Tiemann, Michael","orcid":"0000-0003-1711-2722","last_name":"Tiemann"}],"date_created":"2025-08-26T06:58:26Z","volume":10,"publisher":"American Chemical Society (ACS)","date_updated":"2025-08-26T06:59:13Z","citation":{"ama":"Baier D, Kieke L, Voth S, et al. Selective H<sub>2</sub> Gas Sensing Using ZIF-71/In-SnO<sub>2</sub> Bilayer Sensors: A Size-Selective Molecular Sieving Approach. <i>ACS Sensors</i>. 2025;10(8):5664-5673. doi:<a href=\"https://doi.org/10.1021/acssensors.5c00770\">10.1021/acssensors.5c00770</a>","chicago":"Baier, Dominik, Laureen Kieke, Sven Voth, Marvin Kloß, Marten Huck, Hans-Georg Steinrück, and Michael Tiemann. “Selective H<sub>2</sub> Gas Sensing Using ZIF-71/In-SnO<sub>2</sub> Bilayer Sensors: A Size-Selective Molecular Sieving Approach.” <i>ACS Sensors</i> 10, no. 8 (2025): 5664–73. <a href=\"https://doi.org/10.1021/acssensors.5c00770\">https://doi.org/10.1021/acssensors.5c00770</a>.","ieee":"D. Baier <i>et al.</i>, “Selective H<sub>2</sub> Gas Sensing Using ZIF-71/In-SnO<sub>2</sub> Bilayer Sensors: A Size-Selective Molecular Sieving Approach,” <i>ACS Sensors</i>, vol. 10, no. 8, pp. 5664–5673, 2025, doi: <a href=\"https://doi.org/10.1021/acssensors.5c00770\">10.1021/acssensors.5c00770</a>.","mla":"Baier, Dominik, et al. “Selective H<sub>2</sub> Gas Sensing Using ZIF-71/In-SnO<sub>2</sub> Bilayer Sensors: A Size-Selective Molecular Sieving Approach.” <i>ACS Sensors</i>, vol. 10, no. 8, American Chemical Society (ACS), 2025, pp. 5664–73, doi:<a href=\"https://doi.org/10.1021/acssensors.5c00770\">10.1021/acssensors.5c00770</a>.","bibtex":"@article{Baier_Kieke_Voth_Kloß_Huck_Steinrück_Tiemann_2025, title={Selective H<sub>2</sub> Gas Sensing Using ZIF-71/In-SnO<sub>2</sub> Bilayer Sensors: A Size-Selective Molecular Sieving Approach}, volume={10}, DOI={<a href=\"https://doi.org/10.1021/acssensors.5c00770\">10.1021/acssensors.5c00770</a>}, number={8}, journal={ACS Sensors}, publisher={American Chemical Society (ACS)}, author={Baier, Dominik and Kieke, Laureen and Voth, Sven and Kloß, Marvin and Huck, Marten and Steinrück, Hans-Georg and Tiemann, Michael}, year={2025}, pages={5664–5673} }","short":"D. Baier, L. Kieke, S. Voth, M. Kloß, M. Huck, H.-G. Steinrück, M. Tiemann, ACS Sensors 10 (2025) 5664–5673.","apa":"Baier, D., Kieke, L., Voth, S., Kloß, M., Huck, M., Steinrück, H.-G., &#38; Tiemann, M. (2025). Selective H<sub>2</sub> Gas Sensing Using ZIF-71/In-SnO<sub>2</sub> Bilayer Sensors: A Size-Selective Molecular Sieving Approach. <i>ACS Sensors</i>, <i>10</i>(8), 5664–5673. <a href=\"https://doi.org/10.1021/acssensors.5c00770\">https://doi.org/10.1021/acssensors.5c00770</a>"},"page":"5664-5673","intvolume":"        10","year":"2025","issue":"8","publication_status":"published","publication_identifier":{"issn":["2379-3694","2379-3694"]},"quality_controlled":"1","language":[{"iso":"eng"}],"user_id":"23547","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"_id":"61015","status":"public","type":"journal_article","publication":"ACS Sensors"},{"_id":"62819","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"user_id":"23547","language":[{"iso":"eng"}],"publication":"Journal of Materials Chemistry C","type":"journal_article","abstract":[{"text":"Novel oxalate-bridged heterotrinuclear complexes [A][Mn2Cr(bpy)2(H2O)2Cl2(C2O4)3] (A = (CH3)2(C2H5)NH+ (1) and (CH3)(C2H5)2NH+ (2); bpy = 2,2′-bipyridine) were synthesized using an aqueous solution of [A]3[Cr(C2O4)3] as a building block in reaction with Mn2+ ions and with the addition of the N-donor ligand bipyridine. The isostructural heterometallic complex salts were characterized by single-crystal and powder X-ray diffraction, infrared and impedance spectroscopy, thermal analysis and magnetization measurements. The trinuclear anion [{Mn(bpy)(H2O)Cl(μ-C2O4)}2Cr(C2O4)]− consists of two [Mn(bpy)(H2O)Cl]+ units bridged by the [Cr(C2O4)3]3− anion, which acts as a bidentate ligand towards each of the manganese atoms. The anions are hydrogen bonded to each other via coordinated chloride anions, water molecules and oxygen oxalate atoms, resulting in two-dimensional (2D) hydrogen bonding layers. Compounds exhibit water-assisted proton conductivity behaviour, which was investigated at different temperatures and relative humidities (RH). At 25 °C, an increase in RH from 60% to 93% resulted in an obvious proton conducting switch from 9.1 × 10−11 to 5.6 × 10−5 S cm−1 for 1 and from 7.4 × 10−10 to 1.8 × 10−6 S cm−1 for 2, corresponding to high on/off ratios of about 106 for 1 and 104 for 2. In situ powder X-ray diffraction (PXRD) analysis showed that unit cell parameters of compounds 1 and 2 slightly increase when exposed to humid conditions. This confirmed that incorporation of water molecules into structures with pores and voids causes the proton conductivity switching phenomenon. Magnetic susceptibility measurements indicate a ferromagnetic interaction between Cr3+ and Mn2+ ions bridged by the bis(bidentate) oxalate group. The prepared compounds 1 and 2 were explored as single-source precursors for the formation of spinel oxide by their thermal treatment. With increasing temperature, the spinel composition changed according to the formula Mn1+xCr2–xO4 (0 ≤ x ≤ 1), where x = 0.7 at 500 °C and x = 1 at 900 °C when tet[MnII]oct[MnIIICrIII]O4 is formed. The (micro)structure, morphology, and optical properties of spinel Mn2CrO4 were characterized by PXRD, scanning electron microscopy and UV-Vis diffuse reflectance spectroscopy. The photocatalytic activity of this oxide in degradation of the methylene blue dye under Vis irradiation without and with the support of hydrogen peroxide was further investigated.","lang":"eng"}],"status":"public","date_updated":"2025-12-03T17:13:22Z","oa":"1","publisher":"Royal Society of Chemistry (RSC)","volume":13,"author":[{"last_name":"Lozančić","full_name":"Lozančić, Ana","first_name":"Ana"},{"full_name":"Burazer, Sanja","last_name":"Burazer","first_name":"Sanja"},{"first_name":"Tobias","last_name":"Wagner","full_name":"Wagner, Tobias"},{"first_name":"Krešimir","last_name":"Molčanov","full_name":"Molčanov, Krešimir"},{"first_name":"Damir","full_name":"Pajić, Damir","last_name":"Pajić"},{"first_name":"Lidija","full_name":"Androš Dubraja, Lidija","last_name":"Androš Dubraja"},{"first_name":"Michael","full_name":"Tiemann, Michael","id":"23547","orcid":"0000-0003-1711-2722","last_name":"Tiemann"},{"last_name":"Jurić","full_name":"Jurić, Marijana","first_name":"Marijana"}],"date_created":"2025-12-03T17:12:16Z","title":"Water-assisted proton conductivity and a magnetic study of heterotrinuclear oxalate-bridged compounds: molecular precursors for the Mn2CrO4 spinel","doi":"10.1039/d5tc02569a","main_file_link":[{"open_access":"1"}],"publication_identifier":{"issn":["2050-7526","2050-7534"]},"quality_controlled":"1","publication_status":"published","issue":"41","year":"2025","page":"21179-21195","intvolume":"        13","citation":{"ieee":"A. Lozančić <i>et al.</i>, “Water-assisted proton conductivity and a magnetic study of heterotrinuclear oxalate-bridged compounds: molecular precursors for the Mn2CrO4 spinel,” <i>Journal of Materials Chemistry C</i>, vol. 13, no. 41, pp. 21179–21195, 2025, doi: <a href=\"https://doi.org/10.1039/d5tc02569a\">10.1039/d5tc02569a</a>.","chicago":"Lozančić, Ana, Sanja Burazer, Tobias Wagner, Krešimir Molčanov, Damir Pajić, Lidija Androš Dubraja, Michael Tiemann, and Marijana Jurić. “Water-Assisted Proton Conductivity and a Magnetic Study of Heterotrinuclear Oxalate-Bridged Compounds: Molecular Precursors for the Mn2CrO4 Spinel.” <i>Journal of Materials Chemistry C</i> 13, no. 41 (2025): 21179–95. <a href=\"https://doi.org/10.1039/d5tc02569a\">https://doi.org/10.1039/d5tc02569a</a>.","ama":"Lozančić A, Burazer S, Wagner T, et al. Water-assisted proton conductivity and a magnetic study of heterotrinuclear oxalate-bridged compounds: molecular precursors for the Mn2CrO4 spinel. <i>Journal of Materials Chemistry C</i>. 2025;13(41):21179-21195. doi:<a href=\"https://doi.org/10.1039/d5tc02569a\">10.1039/d5tc02569a</a>","apa":"Lozančić, A., Burazer, S., Wagner, T., Molčanov, K., Pajić, D., Androš Dubraja, L., Tiemann, M., &#38; Jurić, M. (2025). Water-assisted proton conductivity and a magnetic study of heterotrinuclear oxalate-bridged compounds: molecular precursors for the Mn2CrO4 spinel. <i>Journal of Materials Chemistry C</i>, <i>13</i>(41), 21179–21195. <a href=\"https://doi.org/10.1039/d5tc02569a\">https://doi.org/10.1039/d5tc02569a</a>","mla":"Lozančić, Ana, et al. “Water-Assisted Proton Conductivity and a Magnetic Study of Heterotrinuclear Oxalate-Bridged Compounds: Molecular Precursors for the Mn2CrO4 Spinel.” <i>Journal of Materials Chemistry C</i>, vol. 13, no. 41, Royal Society of Chemistry (RSC), 2025, pp. 21179–95, doi:<a href=\"https://doi.org/10.1039/d5tc02569a\">10.1039/d5tc02569a</a>.","bibtex":"@article{Lozančić_Burazer_Wagner_Molčanov_Pajić_Androš Dubraja_Tiemann_Jurić_2025, title={Water-assisted proton conductivity and a magnetic study of heterotrinuclear oxalate-bridged compounds: molecular precursors for the Mn2CrO4 spinel}, volume={13}, DOI={<a href=\"https://doi.org/10.1039/d5tc02569a\">10.1039/d5tc02569a</a>}, number={41}, journal={Journal of Materials Chemistry C}, publisher={Royal Society of Chemistry (RSC)}, author={Lozančić, Ana and Burazer, Sanja and Wagner, Tobias and Molčanov, Krešimir and Pajić, Damir and Androš Dubraja, Lidija and Tiemann, Michael and Jurić, Marijana}, year={2025}, pages={21179–21195} }","short":"A. Lozančić, S. Burazer, T. Wagner, K. Molčanov, D. Pajić, L. Androš Dubraja, M. Tiemann, M. Jurić, Journal of Materials Chemistry C 13 (2025) 21179–21195."}},{"_id":"62816","user_id":"23547","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"article_number":"e11190","language":[{"iso":"eng"}],"type":"journal_article","publication":"Advanced Functional Materials","abstract":[{"text":"The increasing demand for advanced sensing technologies drives the development of chemical sensors using innovative materials. In gas sensing, optical sensors are often used to detect gases such as CO, NOx, and O2. Oxygen sensors typically incorporate dyes into oxygen-permeable matrices like polymers, silica, or zeolites. Alternatively, semiconductor surface chemistry can enable O2 detection. However, these approaches are often limited by slow response and recovery times and low selectivity, restricting their practical applications. The metal-organic framework MOF-76(Eu) and its yttrium-modified variant, MOF-76(Eu/Y) are reported to exhibit highly reversible and fast optical responses to varying O2 concentrations. Time-resolved emission measurements are performed over short (seconds) and long (hours) timescales using N2 and synthetic air mixtures. Cross-sensitivity to humidity is analyzed. Multichannel scaling photon-counting experiments confirm quenching at the linker level, as the emission lifetime remains nearly constant. Yttrium significantly improves stability and performance at room temperature. Structural and optical changes induced by yttrium are investigated. Additionally, MIL-78(Eu), another Eu-BTC-based MOF with a different coordination environment, is synthesized. Unlike MOF-76(Eu), MIL-78(Eu) exhibits distinct optical properties but lacks a reversible response to O2. These results highlight the potential of MOF-76-based materials for high-performance O2 sensing.","lang":"eng"}],"status":"public","publisher":"Wiley","oa":"1","date_updated":"2025-12-03T17:11:15Z","date_created":"2025-12-03T17:09:28Z","author":[{"first_name":"Zhenyu","full_name":"Zhao, Zhenyu","last_name":"Zhao"},{"id":"11848","full_name":"Weinberger, Christian","last_name":"Weinberger","first_name":"Christian"},{"last_name":"Steube","orcid":"0000-0003-3178-4429","full_name":"Steube, Jakob","id":"40342","first_name":"Jakob"},{"first_name":"Matthias","full_name":"Bauer, Matthias","id":"47241","orcid":"0000-0002-9294-6076","last_name":"Bauer"},{"first_name":"Martin","id":"100167","full_name":"Brehm, Martin","last_name":"Brehm"},{"full_name":"Tiemann, Michael","id":"23547","last_name":"Tiemann","orcid":"0000-0003-1711-2722","first_name":"Michael"}],"title":"Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)","main_file_link":[{"open_access":"1"}],"doi":"10.1002/adfm.202511190","publication_status":"published","publication_identifier":{"issn":["1616-301X","1616-3028"]},"quality_controlled":"1","year":"2025","citation":{"ieee":"Z. Zhao, C. Weinberger, J. Steube, M. Bauer, M. Brehm, and M. Tiemann, “Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76),” <i>Advanced Functional Materials</i>, Art. no. e11190, 2025, doi: <a href=\"https://doi.org/10.1002/adfm.202511190\">10.1002/adfm.202511190</a>.","chicago":"Zhao, Zhenyu, Christian Weinberger, Jakob Steube, Matthias Bauer, Martin Brehm, and Michael Tiemann. “Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76).” <i>Advanced Functional Materials</i>, 2025. <a href=\"https://doi.org/10.1002/adfm.202511190\">https://doi.org/10.1002/adfm.202511190</a>.","ama":"Zhao Z, Weinberger C, Steube J, Bauer M, Brehm M, Tiemann M. Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76). <i>Advanced Functional Materials</i>. Published online 2025. doi:<a href=\"https://doi.org/10.1002/adfm.202511190\">10.1002/adfm.202511190</a>","bibtex":"@article{Zhao_Weinberger_Steube_Bauer_Brehm_Tiemann_2025, title={Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)}, DOI={<a href=\"https://doi.org/10.1002/adfm.202511190\">10.1002/adfm.202511190</a>}, number={e11190}, journal={Advanced Functional Materials}, publisher={Wiley}, author={Zhao, Zhenyu and Weinberger, Christian and Steube, Jakob and Bauer, Matthias and Brehm, Martin and Tiemann, Michael}, year={2025} }","mla":"Zhao, Zhenyu, et al. “Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76).” <i>Advanced Functional Materials</i>, e11190, Wiley, 2025, doi:<a href=\"https://doi.org/10.1002/adfm.202511190\">10.1002/adfm.202511190</a>.","short":"Z. Zhao, C. Weinberger, J. Steube, M. Bauer, M. Brehm, M. Tiemann, Advanced Functional Materials (2025).","apa":"Zhao, Z., Weinberger, C., Steube, J., Bauer, M., Brehm, M., &#38; Tiemann, M. (2025). Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76). <i>Advanced Functional Materials</i>, Article e11190. <a href=\"https://doi.org/10.1002/adfm.202511190\">https://doi.org/10.1002/adfm.202511190</a>"}},{"department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"user_id":"23547","_id":"52372","article_type":"original","type":"journal_article","status":"public","volume":171,"author":[{"first_name":"Xiaokun","full_name":"Ge, Xiaokun","last_name":"Ge"},{"full_name":"Huck, Marten","last_name":"Huck","first_name":"Marten"},{"first_name":"Andreas","last_name":"Kuhlmann","full_name":"Kuhlmann, Andreas"},{"id":"23547","full_name":"Tiemann, Michael","orcid":"0000-0003-1711-2722","last_name":"Tiemann","first_name":"Michael"},{"first_name":"Christian","last_name":"Weinberger","full_name":"Weinberger, Christian","id":"11848"},{"first_name":"Xiaodan","full_name":"Xu, Xiaodan","last_name":"Xu"},{"last_name":"Zhao","full_name":"Zhao, Zhenyu","first_name":"Zhenyu"},{"first_name":"Hans-Georg","full_name":"Steinrueck, Hans-Georg","last_name":"Steinrueck"}],"date_updated":"2024-03-25T17:01:09Z","oa":"1","doi":"10.1149/1945-7111/ad30d3","main_file_link":[{"url":"https://dx.doi.org/10.1149/1945-7111/ad30d3","open_access":"1"}],"publication_identifier":{"issn":["0013-4651","1945-7111"]},"publication_status":"published","intvolume":"       171","page":"030552","citation":{"ama":"Ge X, Huck M, Kuhlmann A, et al. Electrochemical Removal of HF from Carbonate-based LiPF6-containing Li-ion Battery Electrolytes. <i>Journal of The Electrochemical Society</i>. 2024;171:030552. doi:<a href=\"https://doi.org/10.1149/1945-7111/ad30d3\">10.1149/1945-7111/ad30d3</a>","chicago":"Ge, Xiaokun, Marten Huck, Andreas Kuhlmann, Michael Tiemann, Christian Weinberger, Xiaodan Xu, Zhenyu Zhao, and Hans-Georg Steinrueck. “Electrochemical Removal of HF from Carbonate-Based LiPF6-Containing Li-Ion Battery Electrolytes.” <i>Journal of The Electrochemical Society</i> 171 (2024): 030552. <a href=\"https://doi.org/10.1149/1945-7111/ad30d3\">https://doi.org/10.1149/1945-7111/ad30d3</a>.","ieee":"X. Ge <i>et al.</i>, “Electrochemical Removal of HF from Carbonate-based LiPF6-containing Li-ion Battery Electrolytes,” <i>Journal of The Electrochemical Society</i>, vol. 171, p. 030552, 2024, doi: <a href=\"https://doi.org/10.1149/1945-7111/ad30d3\">10.1149/1945-7111/ad30d3</a>.","apa":"Ge, X., Huck, M., Kuhlmann, A., Tiemann, M., Weinberger, C., Xu, X., Zhao, Z., &#38; Steinrueck, H.-G. (2024). Electrochemical Removal of HF from Carbonate-based LiPF6-containing Li-ion Battery Electrolytes. <i>Journal of The Electrochemical Society</i>, <i>171</i>, 030552. <a href=\"https://doi.org/10.1149/1945-7111/ad30d3\">https://doi.org/10.1149/1945-7111/ad30d3</a>","bibtex":"@article{Ge_Huck_Kuhlmann_Tiemann_Weinberger_Xu_Zhao_Steinrueck_2024, title={Electrochemical Removal of HF from Carbonate-based LiPF6-containing Li-ion Battery Electrolytes}, volume={171}, DOI={<a href=\"https://doi.org/10.1149/1945-7111/ad30d3\">10.1149/1945-7111/ad30d3</a>}, journal={Journal of The Electrochemical Society}, publisher={The Electrochemical Society}, author={Ge, Xiaokun and Huck, Marten and Kuhlmann, Andreas and Tiemann, Michael and Weinberger, Christian and Xu, Xiaodan and Zhao, Zhenyu and Steinrueck, Hans-Georg}, year={2024}, pages={030552} }","short":"X. Ge, M. Huck, A. Kuhlmann, M. Tiemann, C. Weinberger, X. Xu, Z. Zhao, H.-G. Steinrueck, Journal of The Electrochemical Society 171 (2024) 030552.","mla":"Ge, Xiaokun, et al. “Electrochemical Removal of HF from Carbonate-Based LiPF6-Containing Li-Ion Battery Electrolytes.” <i>Journal of The Electrochemical Society</i>, vol. 171, The Electrochemical Society, 2024, p. 030552, doi:<a href=\"https://doi.org/10.1149/1945-7111/ad30d3\">10.1149/1945-7111/ad30d3</a>."},"language":[{"iso":"eng"}],"keyword":["Materials Chemistry","Electrochemistry","Surfaces","Coatings and Films","Condensed Matter Physics","Renewable Energy","Sustainability and the Environment","Electronic","Optical and Magnetic Materials"],"publication":"Journal of The Electrochemical Society","abstract":[{"lang":"eng","text":"Due to the hydrolytic instability of LiPF6 in carbonate-based solvents, HF is a typical impurity in Li-ion battery electrolytes. HF significantly influences the performance of Li-ion batteries, for example by impacting the formation of the solid electrolyte interphase at the anode and by affecting transition metal dissolution at the cathode. Additionally, HF complicates studying fundamental interfacial electrochemistry of Li-ion battery electrolytes, such as direct anion reduction, because it is electrocatalytically relatively unstable, resulting in LiF passivation layers. Methods to selectively remove ppm levels of HF from LiPF6-containing carbonate-based electrolytes are limited. We introduce and benchmark a simple yet efficient electrochemical in situ method to selectively remove ppm amounts of HF from LiPF6-containing carbonate-based electrolytes. The basic idea is the application of a suitable potential to a high surface-area metallic electrode upon which only HF reacts (electrocatalytically) while all other electrolyte components are unaffected under the respective conditions."}],"date_created":"2024-03-08T06:27:10Z","publisher":"The Electrochemical Society","title":"Electrochemical Removal of HF from Carbonate-based LiPF6-containing Li-ion Battery Electrolytes","quality_controlled":"1","year":"2024"},{"title":"Natural near field coupled leaky-mode resonant anti-reflection structures: the setae of Cataglyphis bombycina","doi":"10.3389/fphy.2024.1393279","main_file_link":[{"open_access":"1"}],"oa":"1","date_updated":"2024-05-22T14:27:32Z","volume":12,"author":[{"first_name":"Bertram","last_name":"Schwind","full_name":"Schwind, Bertram"},{"last_name":"Wu","full_name":"Wu, Xia","first_name":"Xia"},{"full_name":"Tiemann, Michael","id":"23547","orcid":"0000-0003-1711-2722","last_name":"Tiemann","first_name":"Michael"},{"first_name":"Helge-Otto","full_name":"Fabritius, Helge-Otto","last_name":"Fabritius"}],"date_created":"2024-05-22T14:19:25Z","year":"2024","intvolume":"        12","citation":{"ama":"Schwind B, Wu X, Tiemann M, Fabritius H-O. Natural near field coupled leaky-mode resonant anti-reflection structures: the setae of Cataglyphis bombycina. <i>Frontiers in Physics</i>. 2024;12. doi:<a href=\"https://doi.org/10.3389/fphy.2024.1393279\">10.3389/fphy.2024.1393279</a>","ieee":"B. Schwind, X. Wu, M. Tiemann, and H.-O. Fabritius, “Natural near field coupled leaky-mode resonant anti-reflection structures: the setae of Cataglyphis bombycina,” <i>Frontiers in Physics</i>, vol. 12, 2024, doi: <a href=\"https://doi.org/10.3389/fphy.2024.1393279\">10.3389/fphy.2024.1393279</a>.","chicago":"Schwind, Bertram, Xia Wu, Michael Tiemann, and Helge-Otto Fabritius. “Natural near Field Coupled Leaky-Mode Resonant Anti-Reflection Structures: The Setae of Cataglyphis Bombycina.” <i>Frontiers in Physics</i> 12 (2024). <a href=\"https://doi.org/10.3389/fphy.2024.1393279\">https://doi.org/10.3389/fphy.2024.1393279</a>.","apa":"Schwind, B., Wu, X., Tiemann, M., &#38; Fabritius, H.-O. (2024). Natural near field coupled leaky-mode resonant anti-reflection structures: the setae of Cataglyphis bombycina. <i>Frontiers in Physics</i>, <i>12</i>. <a href=\"https://doi.org/10.3389/fphy.2024.1393279\">https://doi.org/10.3389/fphy.2024.1393279</a>","short":"B. Schwind, X. Wu, M. Tiemann, H.-O. Fabritius, Frontiers in Physics 12 (2024).","mla":"Schwind, Bertram, et al. “Natural near Field Coupled Leaky-Mode Resonant Anti-Reflection Structures: The Setae of Cataglyphis Bombycina.” <i>Frontiers in Physics</i>, vol. 12, 2024, doi:<a href=\"https://doi.org/10.3389/fphy.2024.1393279\">10.3389/fphy.2024.1393279</a>.","bibtex":"@article{Schwind_Wu_Tiemann_Fabritius_2024, title={Natural near field coupled leaky-mode resonant anti-reflection structures: the setae of Cataglyphis bombycina}, volume={12}, DOI={<a href=\"https://doi.org/10.3389/fphy.2024.1393279\">10.3389/fphy.2024.1393279</a>}, journal={Frontiers in Physics}, author={Schwind, Bertram and Wu, Xia and Tiemann, Michael and Fabritius, Helge-Otto}, year={2024} }"},"quality_controlled":"1","publication_identifier":{"issn":["2296-424X"]},"article_type":"original","language":[{"iso":"eng"}],"_id":"54419","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"},{"_id":"230"}],"user_id":"23547","abstract":[{"lang":"eng","text":"Leaky mode resonances of the setae of Cataglyphis bombycina are found to enhance the thermal emission of the animals by near field coupling to the chitinous exoskeleton. This is remarkable, as the setae are also an adaption to enhance the reflectivity in the visible wavelength range. Both effects are dependent on morphology, dimensions and spatial arrangement. These parameters were experimentally characterized and simulated by finite difference time domain simulations to elucidate the optical impact of the setae in the mid infrared range and the contribution of leaky mode resonances. This mode of action and the setae’s optical properties in the visible range explain evolutionary strains that led to the actual morphology and size of the setae."}],"status":"public","publication":"Frontiers in Physics","type":"journal_article"},{"quality_controlled":"1","publication_identifier":{"isbn":["978-3-910600-01-0"]},"citation":{"ama":"Kothe L, Ester S, Poeplau M, Wengenroth M, Tiemann M. Stabilisierung von O2-sensitiven Photolumineszenzsignalen durch Temperaturvariation. In: <i>Proceedings 22. GMA/ITG-Fachtagung Sensoren Und Messsysteme 2024</i>. ; 2024:66-71. doi:<a href=\"https://doi.org/10.5162/sensoren2024/A3.1\">10.5162/sensoren2024/A3.1</a>","ieee":"L. Kothe, S. Ester, M. Poeplau, M. Wengenroth, and M. Tiemann, “Stabilisierung von O2-sensitiven Photolumineszenzsignalen durch Temperaturvariation,” in <i>Proceedings 22. GMA/ITG-Fachtagung Sensoren und Messsysteme 2024</i>, 2024, pp. 66–71, doi: <a href=\"https://doi.org/10.5162/sensoren2024/A3.1\">10.5162/sensoren2024/A3.1</a>.","chicago":"Kothe, Linda, Stephan Ester, Michael Poeplau, Marc Wengenroth, and Michael Tiemann. “Stabilisierung von O2-Sensitiven Photolumineszenzsignalen Durch Temperaturvariation.” In <i>Proceedings 22. GMA/ITG-Fachtagung Sensoren Und Messsysteme 2024</i>, 66–71, 2024. <a href=\"https://doi.org/10.5162/sensoren2024/A3.1\">https://doi.org/10.5162/sensoren2024/A3.1</a>.","bibtex":"@inproceedings{Kothe_Ester_Poeplau_Wengenroth_Tiemann_2024, title={Stabilisierung von O2-sensitiven Photolumineszenzsignalen durch Temperaturvariation}, DOI={<a href=\"https://doi.org/10.5162/sensoren2024/A3.1\">10.5162/sensoren2024/A3.1</a>}, booktitle={Proceedings 22. GMA/ITG-Fachtagung Sensoren und Messsysteme 2024}, author={Kothe, Linda and Ester, Stephan and Poeplau, Michael and Wengenroth, Marc and Tiemann, Michael}, year={2024}, pages={66–71} }","mla":"Kothe, Linda, et al. “Stabilisierung von O2-Sensitiven Photolumineszenzsignalen Durch Temperaturvariation.” <i>Proceedings 22. GMA/ITG-Fachtagung Sensoren Und Messsysteme 2024</i>, 2024, pp. 66–71, doi:<a href=\"https://doi.org/10.5162/sensoren2024/A3.1\">10.5162/sensoren2024/A3.1</a>.","short":"L. Kothe, S. Ester, M. Poeplau, M. Wengenroth, M. Tiemann, in: Proceedings 22. GMA/ITG-Fachtagung Sensoren Und Messsysteme 2024, 2024, pp. 66–71.","apa":"Kothe, L., Ester, S., Poeplau, M., Wengenroth, M., &#38; Tiemann, M. (2024). Stabilisierung von O2-sensitiven Photolumineszenzsignalen durch Temperaturvariation. <i>Proceedings 22. GMA/ITG-Fachtagung Sensoren Und Messsysteme 2024</i>, 66–71. <a href=\"https://doi.org/10.5162/sensoren2024/A3.1\">https://doi.org/10.5162/sensoren2024/A3.1</a>"},"page":"66 - 71","year":"2024","date_created":"2024-07-26T07:20:30Z","author":[{"first_name":"Linda","full_name":"Kothe, Linda","last_name":"Kothe"},{"first_name":"Stephan","full_name":"Ester, Stephan","last_name":"Ester"},{"first_name":"Michael","last_name":"Poeplau","full_name":"Poeplau, Michael"},{"full_name":"Wengenroth, Marc","last_name":"Wengenroth","first_name":"Marc"},{"first_name":"Michael","last_name":"Tiemann","orcid":"0000-0003-1711-2722","id":"23547","full_name":"Tiemann, Michael"}],"date_updated":"2024-07-30T11:52:18Z","oa":"1","main_file_link":[{"open_access":"1"}],"doi":"10.5162/sensoren2024/A3.1","title":"Stabilisierung von O2-sensitiven Photolumineszenzsignalen durch Temperaturvariation","type":"conference","publication":"Proceedings 22. GMA/ITG-Fachtagung Sensoren und Messsysteme 2024","status":"public","abstract":[{"lang":"ger","text":"In dieser Arbeit werden Untersuchungen zur sauerstoffabhängigen Photolumineszenz von Zink-Zinn-Oxid-Partikeln präsentiert, welche perspektivisch für die optische Sauerstoffdetektion eingesetzt werden sollen. Zink-Zinn-Oxid zeigt eine sauerstoffabhängige Photolumineszenz im sichtbaren Spektralbereich und wird hier als eine photostabile Alternative zu den kommerziell verfügbaren metallorganischen Verbindungen vorgestellt. Der Fokus liegt dabei auf dem Einfluss der Temperatur auf die Sauerstoffsensitivität der Photolumineszenz. Wir zeigen, dass bereits leichte Temperaturerhöhungen zu einer signifikanten Verbesserung der Sauerstoffsensitivität der Photolumineszenz führen und gleichzeitig die Signalqualität erhöhen."}],"user_id":"23547","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"_id":"55392","language":[{"iso":"eng"}]},{"doi":"10.3390/nano14221791","main_file_link":[{"open_access":"1"}],"volume":14,"author":[{"full_name":"Kloß, Marvin","last_name":"Kloß","first_name":"Marvin"},{"last_name":"Schäfers","full_name":"Schäfers, Lara","first_name":"Lara"},{"first_name":"Zhenyu","full_name":"Zhao, Zhenyu","last_name":"Zhao"},{"id":"11848","full_name":"Weinberger, Christian","last_name":"Weinberger","first_name":"Christian"},{"id":"101","full_name":"Egold, Hans","last_name":"Egold","first_name":"Hans"},{"first_name":"Michael","last_name":"Tiemann","orcid":"0000-0003-1711-2722","id":"23547","full_name":"Tiemann, Michael"}],"oa":"1","date_updated":"2025-01-10T14:27:39Z","page":"1791","intvolume":"        14","citation":{"mla":"Kloß, Marvin, et al. “Water Sorption on Isoreticular CPO-27-Type MOFs: From Discrete Sorption Sites to Water-Bridge-Mediated Pore Condensation.” <i>Nanomaterials</i>, vol. 14, no. 22, MDPI AG, 2024, p. 1791, doi:<a href=\"https://doi.org/10.3390/nano14221791\">10.3390/nano14221791</a>.","bibtex":"@article{Kloß_Schäfers_Zhao_Weinberger_Egold_Tiemann_2024, title={Water Sorption on Isoreticular CPO-27-Type MOFs: From Discrete Sorption Sites to Water-Bridge-Mediated Pore Condensation}, volume={14}, DOI={<a href=\"https://doi.org/10.3390/nano14221791\">10.3390/nano14221791</a>}, number={22}, journal={Nanomaterials}, publisher={MDPI AG}, author={Kloß, Marvin and Schäfers, Lara and Zhao, Zhenyu and Weinberger, Christian and Egold, Hans and Tiemann, Michael}, year={2024}, pages={1791} }","short":"M. Kloß, L. Schäfers, Z. Zhao, C. Weinberger, H. Egold, M. Tiemann, Nanomaterials 14 (2024) 1791.","apa":"Kloß, M., Schäfers, L., Zhao, Z., Weinberger, C., Egold, H., &#38; Tiemann, M. (2024). Water Sorption on Isoreticular CPO-27-Type MOFs: From Discrete Sorption Sites to Water-Bridge-Mediated Pore Condensation. <i>Nanomaterials</i>, <i>14</i>(22), 1791. <a href=\"https://doi.org/10.3390/nano14221791\">https://doi.org/10.3390/nano14221791</a>","ama":"Kloß M, Schäfers L, Zhao Z, Weinberger C, Egold H, Tiemann M. Water Sorption on Isoreticular CPO-27-Type MOFs: From Discrete Sorption Sites to Water-Bridge-Mediated Pore Condensation. <i>Nanomaterials</i>. 2024;14(22):1791. doi:<a href=\"https://doi.org/10.3390/nano14221791\">10.3390/nano14221791</a>","chicago":"Kloß, Marvin, Lara Schäfers, Zhenyu Zhao, Christian Weinberger, Hans Egold, and Michael Tiemann. “Water Sorption on Isoreticular CPO-27-Type MOFs: From Discrete Sorption Sites to Water-Bridge-Mediated Pore Condensation.” <i>Nanomaterials</i> 14, no. 22 (2024): 1791. <a href=\"https://doi.org/10.3390/nano14221791\">https://doi.org/10.3390/nano14221791</a>.","ieee":"M. Kloß, L. Schäfers, Z. Zhao, C. Weinberger, H. Egold, and M. Tiemann, “Water Sorption on Isoreticular CPO-27-Type MOFs: From Discrete Sorption Sites to Water-Bridge-Mediated Pore Condensation,” <i>Nanomaterials</i>, vol. 14, no. 22, p. 1791, 2024, doi: <a href=\"https://doi.org/10.3390/nano14221791\">10.3390/nano14221791</a>."},"publication_identifier":{"issn":["2079-4991"]},"publication_status":"published","article_type":"original","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"user_id":"23547","_id":"56947","status":"public","type":"journal_article","title":"Water Sorption on Isoreticular CPO-27-Type MOFs: From Discrete Sorption Sites to Water-Bridge-Mediated Pore Condensation","date_created":"2024-11-08T06:18:11Z","publisher":"MDPI AG","year":"2024","issue":"22","quality_controlled":"1","language":[{"iso":"eng"}],"abstract":[{"text":"<jats:p>Pore engineering is commonly used to alter the properties of metal–organic frameworks. This is achieved by incorporating different linker molecules (L) into the structure, generating isoreticular frameworks. CPO-27, also named MOF-74, is a prototypical material for this approach, offering the potential to modify the size of its one-dimensional pore channels and the hydrophobicity of pore walls using various linker ligands during synthesis. Thermal activation of these materials yields accessible open metal sites (i.e., under-coordinated metal centers) at the pore walls, thus acting as strong primary binding sites for guest molecules, including water. We study the effect of the pore size and linker hydrophobicity within a series of Ni2+-based isoreticular frameworks (i.e., Ni2L, L = dhtp, dhip, dondc, bpp, bpm, tpp), analyzing their water sorption behavior and the water interactions in the confined pore space. For this purpose, we apply water vapor sorption analysis and Fourier transform infrared spectroscopy. In addition, defect degrees of all compounds are determined by thermogravimetric analysis and solution 1H nuclear magnetic resonance spectroscopy. We find that larger defect degrees affect the preferential sorption sites in Ni2dhtp, while no such indication is found for the other materials in our study. Instead, strong evidence is found for the formation of water bridges/chains between coordinating water molecules, as previously observed for hydrophobic porous carbons and mesoporous silica. This suggests similar sorption energies for additional water molecules in materials with larger pore sizes after saturation of the primary binding sites, resulting in more bulk-like water arrangements. Consequently, the sorption mechanism is driven by classical pore condensation through H-bonding anchor sites instead of sorption at discrete sites.</jats:p>","lang":"eng"}],"publication":"Nanomaterials"},{"publisher":"Wiley","date_created":"2024-09-06T07:07:17Z","title":"Understanding Hydration in CPO‐27 Metal‐Organic Frameworks: Strong Impact of the Chemical Nature of the Metal (Cu, Zn)","quality_controlled":"1","issue":"35","year":"2024","language":[{"iso":"eng"}],"publication":"Advanced Materials Interfaces","abstract":[{"text":"CPO‐27 is a metal‐organic framework (MOF) with coordinatively unsaturated metal centers (open metal sites). It is therefore an ideal host material for small guest molecules, including water. This opens up numerous possible applications, such as proton conduction, humidity sensing, water harvesting, or adsorption‐driven heat pumps. For all of these applications, profound knowledge of the adsorption and desorption of water in the micropores is mandatory. The hydration and water structure in CPO‐27‐M (M = Zn or Cu) is investigated using water vapor sorption, Fourier transform infrared (FTIR) spectroscopy, density functional theory (DFT) calculations, and molecular dynamics simulation. In the pores of CPO‐27‐Zn, water binds as a ligand to the Zn center. Additional water molecules are stepwise incorporated at defined positions, forming a network of H‐bonds with the framework and with each other. In CPO‐27‐Cu, hydration proceeds by an entirely different mechanism. Here, water does not coordinate to the metal center, but only forms H‐bonds with the framework; pore filling occurs mostly in a single step, with the open metal site remaining unoccupied. Water in the pores forms clusters with extensive intra‐cluster H‐bonding.","lang":"eng"}],"oa":"1","date_updated":"2025-01-10T14:23:51Z","volume":11,"author":[{"full_name":"Kloß, Marvin","last_name":"Kloß","first_name":"Marvin"},{"full_name":"Beerbaum, Michael","last_name":"Beerbaum","first_name":"Michael"},{"last_name":"Baier","full_name":"Baier, Dominik","first_name":"Dominik"},{"first_name":"Christian","id":"11848","full_name":"Weinberger, Christian","last_name":"Weinberger"},{"first_name":"Frederik","last_name":"Zysk","full_name":"Zysk, Frederik","id":"14757"},{"id":"60250","full_name":"Elgabarty, Hossam","last_name":"Elgabarty","orcid":"0000-0002-4945-1481","first_name":"Hossam"},{"first_name":"Thomas D.","last_name":"Kühne","full_name":"Kühne, Thomas D."},{"first_name":"Michael","id":"23547","full_name":"Tiemann, Michael","orcid":"0000-0003-1711-2722","last_name":"Tiemann"}],"doi":"10.1002/admi.202400476","main_file_link":[{"open_access":"1"}],"publication_identifier":{"issn":["2196-7350","2196-7350"]},"publication_status":"published","page":"2400476","intvolume":"        11","citation":{"apa":"Kloß, M., Beerbaum, M., Baier, D., Weinberger, C., Zysk, F., Elgabarty, H., Kühne, T. D., &#38; Tiemann, M. (2024). Understanding Hydration in CPO‐27 Metal‐Organic Frameworks: Strong Impact of the Chemical Nature of the Metal (Cu, Zn). <i>Advanced Materials Interfaces</i>, <i>11</i>(35), 2400476. <a href=\"https://doi.org/10.1002/admi.202400476\">https://doi.org/10.1002/admi.202400476</a>","short":"M. Kloß, M. Beerbaum, D. Baier, C. Weinberger, F. Zysk, H. Elgabarty, T.D. Kühne, M. Tiemann, Advanced Materials Interfaces 11 (2024) 2400476.","mla":"Kloß, Marvin, et al. “Understanding Hydration in CPO‐27 Metal‐Organic Frameworks: Strong Impact of the Chemical Nature of the Metal (Cu, Zn).” <i>Advanced Materials Interfaces</i>, vol. 11, no. 35, Wiley, 2024, p. 2400476, doi:<a href=\"https://doi.org/10.1002/admi.202400476\">10.1002/admi.202400476</a>.","bibtex":"@article{Kloß_Beerbaum_Baier_Weinberger_Zysk_Elgabarty_Kühne_Tiemann_2024, title={Understanding Hydration in CPO‐27 Metal‐Organic Frameworks: Strong Impact of the Chemical Nature of the Metal (Cu, Zn)}, volume={11}, DOI={<a href=\"https://doi.org/10.1002/admi.202400476\">10.1002/admi.202400476</a>}, number={35}, journal={Advanced Materials Interfaces}, publisher={Wiley}, author={Kloß, Marvin and Beerbaum, Michael and Baier, Dominik and Weinberger, Christian and Zysk, Frederik and Elgabarty, Hossam and Kühne, Thomas D. and Tiemann, Michael}, year={2024}, pages={2400476} }","chicago":"Kloß, Marvin, Michael Beerbaum, Dominik Baier, Christian Weinberger, Frederik Zysk, Hossam Elgabarty, Thomas D. Kühne, and Michael Tiemann. “Understanding Hydration in CPO‐27 Metal‐Organic Frameworks: Strong Impact of the Chemical Nature of the Metal (Cu, Zn).” <i>Advanced Materials Interfaces</i> 11, no. 35 (2024): 2400476. <a href=\"https://doi.org/10.1002/admi.202400476\">https://doi.org/10.1002/admi.202400476</a>.","ieee":"M. Kloß <i>et al.</i>, “Understanding Hydration in CPO‐27 Metal‐Organic Frameworks: Strong Impact of the Chemical Nature of the Metal (Cu, Zn),” <i>Advanced Materials Interfaces</i>, vol. 11, no. 35, p. 2400476, 2024, doi: <a href=\"https://doi.org/10.1002/admi.202400476\">10.1002/admi.202400476</a>.","ama":"Kloß M, Beerbaum M, Baier D, et al. Understanding Hydration in CPO‐27 Metal‐Organic Frameworks: Strong Impact of the Chemical Nature of the Metal (Cu, Zn). <i>Advanced Materials Interfaces</i>. 2024;11(35):2400476. doi:<a href=\"https://doi.org/10.1002/admi.202400476\">10.1002/admi.202400476</a>"},"_id":"56080","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"user_id":"23547","type":"journal_article","status":"public"},{"year":"2024","issue":"9","quality_controlled":"1","title":"Gas Sensing with Nanoporous In2O3 under Cyclic Optical Activation: Machine Learning-Aided Classification of H2 and H2O","date_created":"2024-09-03T13:49:42Z","publisher":"MDPI","file":[{"content_type":"application/pdf","success":1,"relation":"main_file","date_updated":"2024-09-03T13:58:18Z","creator":"cweinber","date_created":"2024-09-03T13:58:18Z","file_size":3275869,"file_id":"56000","access_level":"closed","file_name":"chemosensors-12-00178.pdf"}],"abstract":[{"lang":"eng","text":"Clean hydrogen is a key aspect of carbon neutrality, necessitating robust methods for monitoring hydrogen concentration in critical infrastructures like pipelines or power plants. While semiconducting metal oxides such as In2O3 can monitor gas concentrations down to the ppm range, they often exhibit cross-sensitivity to other gases like H2O. In this study, we investigated whether cyclic optical illumination of a gas-sensitive In2O3 layer creates identifiable changes in a gas sensor´s electronic resistance that can be linked to H2 and H2O concentrations via machine learning. We exposed nanostructured In2O3 with a large surface area of 95 m2 g-1 to H2 concentrations (0-800 ppm) and relative humidity (0-70%) under cyclic activation utilizing blue light. The sensors were tested for 20 classes of gas combinations. A support vector machine achieved classification rates up to 92.0%, with reliable reproducibility (88.2 ± 2.7%) across five individual sensors using 10-fold cross-validation. Our findings suggest that cyclic optical activation can be used as a tool to classify H2 and H2O concentrations."}],"publication":"Chemosensors","language":[{"iso":"eng"}],"keyword":["resistive gas sensor","chemiresistor","semiconductor","metal oxide","In2O3","mesoporous","hydrogen","humidtiy","machine learning","sustainable"],"ddc":["540"],"intvolume":"        12","page":"178","citation":{"ieee":"D. Baier, A. Krüger, T. Wagner, M. Tiemann, and C. Weinberger, “Gas Sensing with Nanoporous In2O3 under Cyclic Optical Activation: Machine Learning-Aided Classification of H2 and H2O,” <i>Chemosensors</i>, vol. 12, no. 9, p. 178, 2024, doi: <a href=\"https://doi.org/10.3390/chemosensors12090178\">10.3390/chemosensors12090178</a>.","chicago":"Baier, Dominik , Alexander  Krüger, Thorsten  Wagner, Michael Tiemann, and Christian Weinberger. “Gas Sensing with Nanoporous In2O3 under Cyclic Optical Activation: Machine Learning-Aided Classification of H2 and H2O.” <i>Chemosensors</i> 12, no. 9 (2024): 178. <a href=\"https://doi.org/10.3390/chemosensors12090178\">https://doi.org/10.3390/chemosensors12090178</a>.","ama":"Baier D, Krüger A, Wagner T, Tiemann M, Weinberger C. Gas Sensing with Nanoporous In2O3 under Cyclic Optical Activation: Machine Learning-Aided Classification of H2 and H2O. <i>Chemosensors</i>. 2024;12(9):178. doi:<a href=\"https://doi.org/10.3390/chemosensors12090178\">10.3390/chemosensors12090178</a>","short":"D. Baier, A. Krüger, T. Wagner, M. Tiemann, C. Weinberger, Chemosensors 12 (2024) 178.","bibtex":"@article{Baier_Krüger_Wagner_Tiemann_Weinberger_2024, title={Gas Sensing with Nanoporous In2O3 under Cyclic Optical Activation: Machine Learning-Aided Classification of H2 and H2O}, volume={12}, DOI={<a href=\"https://doi.org/10.3390/chemosensors12090178\">10.3390/chemosensors12090178</a>}, number={9}, journal={Chemosensors}, publisher={MDPI}, author={Baier, Dominik  and Krüger, Alexander  and Wagner, Thorsten  and Tiemann, Michael and Weinberger, Christian}, year={2024}, pages={178} }","mla":"Baier, Dominik, et al. “Gas Sensing with Nanoporous In2O3 under Cyclic Optical Activation: Machine Learning-Aided Classification of H2 and H2O.” <i>Chemosensors</i>, vol. 12, no. 9, MDPI, 2024, p. 178, doi:<a href=\"https://doi.org/10.3390/chemosensors12090178\">10.3390/chemosensors12090178</a>.","apa":"Baier, D., Krüger, A., Wagner, T., Tiemann, M., &#38; Weinberger, C. (2024). Gas Sensing with Nanoporous In2O3 under Cyclic Optical Activation: Machine Learning-Aided Classification of H2 and H2O. <i>Chemosensors</i>, <i>12</i>(9), 178. <a href=\"https://doi.org/10.3390/chemosensors12090178\">https://doi.org/10.3390/chemosensors12090178</a>"},"has_accepted_license":"1","publication_identifier":{"issn":["2227-9040"]},"publication_status":"published","doi":"10.3390/chemosensors12090178","main_file_link":[{"url":"https://www.mdpi.com/2227-9040/12/9/178","open_access":"1"}],"volume":12,"author":[{"first_name":"Dominik ","full_name":"Baier, Dominik ","last_name":"Baier"},{"full_name":"Krüger, Alexander ","last_name":"Krüger","first_name":"Alexander "},{"first_name":"Thorsten ","full_name":"Wagner, Thorsten ","last_name":"Wagner"},{"orcid":"0000-0003-1711-2722","last_name":"Tiemann","full_name":"Tiemann, Michael","id":"23547","first_name":"Michael"},{"first_name":"Christian","id":"11848","full_name":"Weinberger, Christian","last_name":"Weinberger"}],"oa":"1","date_updated":"2025-11-26T12:14:21Z","status":"public","type":"journal_article","file_date_updated":"2024-09-03T13:58:18Z","article_type":"original","department":[{"_id":"2"},{"_id":"307"}],"user_id":"11848","_id":"55999"},{"language":[{"iso":"eng"}],"keyword":["Atomic and Molecular Physics","and Optics","Statistical and Nonlinear Physics"],"abstract":[{"text":"The Saharan desert ant Cataglyphis bombycina is densely covered with shiny silver setae (hair-like structures). Their appearance was explained by geometric optics and total internal reflection. The setae also increase the emissivity of the ant, as they form an effective medium. This work provides additional data on microstructural details of the setae that are used to simulate the scattering of an individual seta to explain their influence on the optical properties. This is achieved by characterization of their structure using light microscopy and scanning/transmission electron microscopy. How the microstructural features influence scattering is investigated wave-optically within the limits of finite-difference time-domain simulations from the ultraviolet to the mid-infrared spectral range to elucidate the optical effects beyond ray optics and effective medium theory. The results show that Mie scattering plays an important role in protecting the ant from solar radiation and could be relevant for its thermal tolerance.","lang":"eng"}],"publication":"Journal of the Optical Society of America B","title":"Broadband Mie scattering effects by structural features of setae from the Saharan silver ant Cataglyphis bombycina","date_created":"2023-03-02T17:48:38Z","publisher":"Optica Publishing Group","year":"2023","issue":"3","quality_controlled":"1","article_type":"original","user_id":"23547","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"},{"_id":"230"}],"_id":"42679","status":"public","type":"journal_article","doi":"10.1364/josab.474899","author":[{"first_name":"Bertram","full_name":"Schwind, Bertram","last_name":"Schwind"},{"first_name":"Xia","full_name":"Wu, Xia","last_name":"Wu"},{"first_name":"Michael","orcid":"0000-0003-1711-2722","last_name":"Tiemann","id":"23547","full_name":"Tiemann, Michael"},{"first_name":"Helge-Otto","full_name":"Fabritius, Helge-Otto","last_name":"Fabritius"}],"volume":40,"date_updated":"2024-05-22T14:29:39Z","citation":{"chicago":"Schwind, Bertram, Xia Wu, Michael Tiemann, and Helge-Otto Fabritius. “Broadband Mie Scattering Effects by Structural Features of Setae from the Saharan Silver Ant Cataglyphis Bombycina.” <i>Journal of the Optical Society of America B</i> 40, no. 3 (2023): B49–58. <a href=\"https://doi.org/10.1364/josab.474899\">https://doi.org/10.1364/josab.474899</a>.","ieee":"B. Schwind, X. Wu, M. Tiemann, and H.-O. Fabritius, “Broadband Mie scattering effects by structural features of setae from the Saharan silver ant Cataglyphis bombycina,” <i>Journal of the Optical Society of America B</i>, vol. 40, no. 3, pp. B49–B58, 2023, doi: <a href=\"https://doi.org/10.1364/josab.474899\">10.1364/josab.474899</a>.","ama":"Schwind B, Wu X, Tiemann M, Fabritius H-O. Broadband Mie scattering effects by structural features of setae from the Saharan silver ant Cataglyphis bombycina. <i>Journal of the Optical Society of America B</i>. 2023;40(3):B49-B58. doi:<a href=\"https://doi.org/10.1364/josab.474899\">10.1364/josab.474899</a>","apa":"Schwind, B., Wu, X., Tiemann, M., &#38; Fabritius, H.-O. (2023). Broadband Mie scattering effects by structural features of setae from the Saharan silver ant Cataglyphis bombycina. <i>Journal of the Optical Society of America B</i>, <i>40</i>(3), B49–B58. <a href=\"https://doi.org/10.1364/josab.474899\">https://doi.org/10.1364/josab.474899</a>","bibtex":"@article{Schwind_Wu_Tiemann_Fabritius_2023, title={Broadband Mie scattering effects by structural features of setae from the Saharan silver ant Cataglyphis bombycina}, volume={40}, DOI={<a href=\"https://doi.org/10.1364/josab.474899\">10.1364/josab.474899</a>}, number={3}, journal={Journal of the Optical Society of America B}, publisher={Optica Publishing Group}, author={Schwind, Bertram and Wu, Xia and Tiemann, Michael and Fabritius, Helge-Otto}, year={2023}, pages={B49–B58} }","mla":"Schwind, Bertram, et al. “Broadband Mie Scattering Effects by Structural Features of Setae from the Saharan Silver Ant Cataglyphis Bombycina.” <i>Journal of the Optical Society of America B</i>, vol. 40, no. 3, Optica Publishing Group, 2023, pp. B49–58, doi:<a href=\"https://doi.org/10.1364/josab.474899\">10.1364/josab.474899</a>.","short":"B. Schwind, X. Wu, M. Tiemann, H.-O. Fabritius, Journal of the Optical Society of America B 40 (2023) B49–B58."},"page":"B49 - B58","intvolume":"        40","publication_status":"published","publication_identifier":{"issn":["0740-3224","1520-8540"]}},{"volume":8,"author":[{"full_name":"Baier, Dominik","last_name":"Baier","first_name":"Dominik"},{"last_name":"Priamushko","full_name":"Priamushko, Tatiana","first_name":"Tatiana"},{"first_name":"Christian","full_name":"Weinberger, Christian","id":"11848","last_name":"Weinberger"},{"first_name":"Freddy","full_name":"Kleitz, Freddy","last_name":"Kleitz"},{"full_name":"Tiemann, Michael","id":"23547","last_name":"Tiemann","orcid":"0000-0003-1711-2722","first_name":"Michael"}],"date_updated":"2023-05-01T05:47:53Z","doi":"10.1021/acssensors.2c02739","publication_identifier":{"issn":["2379-3694","2379-3694"]},"publication_status":"published","intvolume":"         8","page":"1616 - 1623","citation":{"chicago":"Baier, Dominik, Tatiana Priamushko, Christian Weinberger, Freddy Kleitz, and Michael Tiemann. “Selective Discrimination between CO and H2 with Copper–Ceria-Resistive Gas Sensors.” <i>ACS Sensors</i> 8, no. 4 (2023): 1616–23. <a href=\"https://doi.org/10.1021/acssensors.2c02739\">https://doi.org/10.1021/acssensors.2c02739</a>.","ieee":"D. Baier, T. Priamushko, C. Weinberger, F. Kleitz, and M. Tiemann, “Selective Discrimination between CO and H2 with Copper–Ceria-Resistive Gas Sensors,” <i>ACS Sensors</i>, vol. 8, no. 4, pp. 1616–1623, 2023, doi: <a href=\"https://doi.org/10.1021/acssensors.2c02739\">10.1021/acssensors.2c02739</a>.","ama":"Baier D, Priamushko T, Weinberger C, Kleitz F, Tiemann M. Selective Discrimination between CO and H2 with Copper–Ceria-Resistive Gas Sensors. <i>ACS Sensors</i>. 2023;8(4):1616-1623. doi:<a href=\"https://doi.org/10.1021/acssensors.2c02739\">10.1021/acssensors.2c02739</a>","apa":"Baier, D., Priamushko, T., Weinberger, C., Kleitz, F., &#38; Tiemann, M. (2023). Selective Discrimination between CO and H2 with Copper–Ceria-Resistive Gas Sensors. <i>ACS Sensors</i>, <i>8</i>(4), 1616–1623. <a href=\"https://doi.org/10.1021/acssensors.2c02739\">https://doi.org/10.1021/acssensors.2c02739</a>","mla":"Baier, Dominik, et al. “Selective Discrimination between CO and H2 with Copper–Ceria-Resistive Gas Sensors.” <i>ACS Sensors</i>, vol. 8, no. 4, American Chemical Society (ACS), 2023, pp. 1616–23, doi:<a href=\"https://doi.org/10.1021/acssensors.2c02739\">10.1021/acssensors.2c02739</a>.","bibtex":"@article{Baier_Priamushko_Weinberger_Kleitz_Tiemann_2023, title={Selective Discrimination between CO and H2 with Copper–Ceria-Resistive Gas Sensors}, volume={8}, DOI={<a href=\"https://doi.org/10.1021/acssensors.2c02739\">10.1021/acssensors.2c02739</a>}, number={4}, journal={ACS Sensors}, publisher={American Chemical Society (ACS)}, author={Baier, Dominik and Priamushko, Tatiana and Weinberger, Christian and Kleitz, Freddy and Tiemann, Michael}, year={2023}, pages={1616–1623} }","short":"D. Baier, T. Priamushko, C. Weinberger, F. Kleitz, M. Tiemann, ACS Sensors 8 (2023) 1616–1623."},"department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"user_id":"23547","_id":"43457","type":"journal_article","status":"public","date_created":"2023-04-12T06:52:34Z","publisher":"American Chemical Society (ACS)","title":"Selective Discrimination between CO and H2 with Copper–Ceria-Resistive Gas Sensors","issue":"4","quality_controlled":"1","year":"2023","language":[{"iso":"eng"}],"keyword":["Fluid Flow and Transfer Processes","Process Chemistry and Technology","Instrumentation","Bioengineering"],"publication":"ACS Sensors","abstract":[{"text":"The production of hydrogen and the utilization of biomass for sustainable concepts of energy conversion and storage require gas sensors that discriminate between hydrogen (H2) and carbon monoxide (CO). Mesoporous copper–ceria (Cu–CeO2) materials with large specific surface areas and uniform porosity are prepared by nanocasting, and their textural properties are characterized by N2 physisorption, powder XRD, scanning electron microscopy, transmission electron microscopy, and energy-dispersive X-ray spectroscopy. The oxidation states of copper (Cu+, Cu2+) and cerium (Ce3+, Ce4+) are investigated by XPS. The materials are used as resistive gas sensors for H2 and CO. The sensors show a stronger response to CO than to H2 and low cross-sensitivity to humidity. Copper turns out to be a necessary component; copper-free ceria materials prepared by the same method show only poor sensing performance. By measuring both gases (CO and H2) simultaneously, it is shown that this behavior can be utilized for selective sensing of CO in the presence of H2.","lang":"eng"}]},{"department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"user_id":"23547","_id":"44837","type":"journal_article","status":"public","volume":13,"author":[{"full_name":"Wortmann, Martin","last_name":"Wortmann","first_name":"Martin"},{"full_name":"Keil, Waldemar","last_name":"Keil","first_name":"Waldemar"},{"last_name":"Diestelhorst","full_name":"Diestelhorst, Elise","first_name":"Elise"},{"full_name":"Westphal, Michael","last_name":"Westphal","first_name":"Michael"},{"full_name":"Haverkamp, René","last_name":"Haverkamp","first_name":"René"},{"last_name":"Brockhagen","full_name":"Brockhagen, Bennet","first_name":"Bennet"},{"full_name":"Biedinger, Jan","last_name":"Biedinger","first_name":"Jan"},{"first_name":"Laila","full_name":"Bondzio, Laila","last_name":"Bondzio"},{"last_name":"Weinberger","id":"11848","full_name":"Weinberger, Christian","first_name":"Christian"},{"first_name":"Dominik","full_name":"Baier, Dominik","last_name":"Baier"},{"first_name":"Michael","orcid":"0000-0003-1711-2722","last_name":"Tiemann","full_name":"Tiemann, Michael","id":"23547"},{"first_name":"Andreas","full_name":"Hütten, Andreas","last_name":"Hütten"},{"full_name":"Hellweg, Thomas","last_name":"Hellweg","first_name":"Thomas"},{"last_name":"Reiss","full_name":"Reiss, Günter","first_name":"Günter"},{"first_name":"Claudia","full_name":"Schmidt, Claudia","last_name":"Schmidt"},{"first_name":"Klaus","last_name":"Sattler","full_name":"Sattler, Klaus"},{"first_name":"Natalie","last_name":"Frese","full_name":"Frese, Natalie"}],"oa":"1","date_updated":"2023-05-12T07:18:51Z","doi":"10.1039/d3ra01301d","main_file_link":[{"open_access":"1"}],"publication_identifier":{"issn":["2046-2069"]},"publication_status":"published","intvolume":"        13","page":"14181-14189","citation":{"mla":"Wortmann, Martin, et al. “Hard Carbon Microspheres with Bimodal Size Distribution and Hierarchical Porosity <i>via</i> Hydrothermal Carbonization of Trehalose.” <i>RSC Advances</i>, vol. 13, no. 21, Royal Society of Chemistry (RSC), 2023, pp. 14181–89, doi:<a href=\"https://doi.org/10.1039/d3ra01301d\">10.1039/d3ra01301d</a>.","short":"M. Wortmann, W. Keil, E. Diestelhorst, M. Westphal, R. Haverkamp, B. Brockhagen, J. Biedinger, L. Bondzio, C. Weinberger, D. Baier, M. Tiemann, A. Hütten, T. Hellweg, G. Reiss, C. Schmidt, K. Sattler, N. Frese, RSC Advances 13 (2023) 14181–14189.","bibtex":"@article{Wortmann_Keil_Diestelhorst_Westphal_Haverkamp_Brockhagen_Biedinger_Bondzio_Weinberger_Baier_et al._2023, title={Hard carbon microspheres with bimodal size distribution and hierarchical porosity <i>via</i> hydrothermal carbonization of trehalose}, volume={13}, DOI={<a href=\"https://doi.org/10.1039/d3ra01301d\">10.1039/d3ra01301d</a>}, number={21}, journal={RSC Advances}, publisher={Royal Society of Chemistry (RSC)}, author={Wortmann, Martin and Keil, Waldemar and Diestelhorst, Elise and Westphal, Michael and Haverkamp, René and Brockhagen, Bennet and Biedinger, Jan and Bondzio, Laila and Weinberger, Christian and Baier, Dominik and et al.}, year={2023}, pages={14181–14189} }","apa":"Wortmann, M., Keil, W., Diestelhorst, E., Westphal, M., Haverkamp, R., Brockhagen, B., Biedinger, J., Bondzio, L., Weinberger, C., Baier, D., Tiemann, M., Hütten, A., Hellweg, T., Reiss, G., Schmidt, C., Sattler, K., &#38; Frese, N. (2023). Hard carbon microspheres with bimodal size distribution and hierarchical porosity <i>via</i> hydrothermal carbonization of trehalose. <i>RSC Advances</i>, <i>13</i>(21), 14181–14189. <a href=\"https://doi.org/10.1039/d3ra01301d\">https://doi.org/10.1039/d3ra01301d</a>","ieee":"M. Wortmann <i>et al.</i>, “Hard carbon microspheres with bimodal size distribution and hierarchical porosity <i>via</i> hydrothermal carbonization of trehalose,” <i>RSC Advances</i>, vol. 13, no. 21, pp. 14181–14189, 2023, doi: <a href=\"https://doi.org/10.1039/d3ra01301d\">10.1039/d3ra01301d</a>.","chicago":"Wortmann, Martin, Waldemar Keil, Elise Diestelhorst, Michael Westphal, René Haverkamp, Bennet Brockhagen, Jan Biedinger, et al. “Hard Carbon Microspheres with Bimodal Size Distribution and Hierarchical Porosity <i>via</i> Hydrothermal Carbonization of Trehalose.” <i>RSC Advances</i> 13, no. 21 (2023): 14181–89. <a href=\"https://doi.org/10.1039/d3ra01301d\">https://doi.org/10.1039/d3ra01301d</a>.","ama":"Wortmann M, Keil W, Diestelhorst E, et al. Hard carbon microspheres with bimodal size distribution and hierarchical porosity <i>via</i> hydrothermal carbonization of trehalose. <i>RSC Advances</i>. 2023;13(21):14181-14189. doi:<a href=\"https://doi.org/10.1039/d3ra01301d\">10.1039/d3ra01301d</a>"},"language":[{"iso":"eng"}],"keyword":["General Chemical Engineering","General Chemistry"],"publication":"RSC Advances","abstract":[{"text":"Hydrothermal carbonization (HTC) is an efficient thermochemical method for the conversion of organic feedstock to carbonaceous solids. HTC of different saccharides is known to produce microspheres (MS) with mostly Gaussian size distribution, which are utilized as functional materials in various applications, both as pristine MS and as a precursor for hard carbon MS. Although the average size of the MS can be influenced by adjusting the process parameters, there is no reliable mechanism to affect their size distribution. Our results demonstrate that HTC of trehalose, in contrast to other saccharides, results in a distinctly bimodal sphere diameter distribution consisting of small spheres with diameters of (2.1 ± 0.2) μm and of large spheres with diameters of (10.4 ± 2.6) μm. Remarkably, after pyrolytic post-carbonization at 1000 °C the MS develop a multimodal pore size distribution with abundant macropores > 100 nm, mesopores > 10 nm and micropores < 2 nm, which were examined by small-angle X-ray scattering and visualized by charge-compensated helium ion microscopy. The bimodal size distribution and hierarchical porosity provide an extraordinary set of properties and potential variables for the tailored synthesis of hierarchical porous carbons, making trehalose-derived hard carbon MS a highly promising material for applications in catalysis, filtration, and energy storage devices.","lang":"eng"}],"date_created":"2023-05-12T07:16:15Z","publisher":"Royal Society of Chemistry (RSC)","title":"Hard carbon microspheres with bimodal size distribution and hierarchical porosity <i>via</i> hydrothermal carbonization of trehalose","issue":"21","quality_controlled":"1","year":"2023"},{"keyword":["General Chemistry","Catalysis"],"language":[{"iso":"eng"}],"publication":"Angewandte Chemie International Edition","abstract":[{"text":"Faradaic reactions including charge transfer are often accompanied with diffusion limitation inside the bulk. Conductive two-dimensional frameworks (2D MOFs) with a fast ion transport can combine both - charge transfer and fast diffusion inside their porous structure. To study remaining diffusion limitations caused by particle morphology, different synthesis routes of Cu-2,3,6,7,10,11-hexahydroxytriphenylene (Cu3(HHTP)2), a copper-based 2D MOF, are used to obtain flake- and rod-like MOF particles. Both morphologies are systematically characterized and evaluated for redox-active Li+ ion storage. The redox mechanism is investigated by means of X-ray absorption spectroscopy, FTIR spectroscopy and in situ XRD. Both types are compared regarding kinetic properties for Li+ ion storage via cyclic voltammetry and impedance spectroscopy. A significant influence of particle morphology for 2D MOFs on kinetic aspects of electrochemical Li+ ion storage can be observed. This study opens the path for optimization of redox active porous structures to overcome diffusion limitations of Faradaic processes.","lang":"eng"}],"publisher":"Wiley","date_created":"2023-04-22T06:17:33Z","title":"Overcoming Diffusion Limitation of Faradaic Processes: Property‐Performance Relationships of 2D Conductive Metal‐Organic Framework Cu3(HHTP)2 for Reversible Lithium‐Ion Storage","quality_controlled":"1","issue":"26","year":"2023","_id":"44116","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"user_id":"23547","type":"journal_article","status":"public","date_updated":"2023-06-21T09:50:14Z","oa":"1","volume":62,"author":[{"first_name":"Jens Matthies","full_name":"Wrogemann, Jens Matthies","last_name":"Wrogemann"},{"first_name":"Marco Joes","last_name":"Lüther","full_name":"Lüther, Marco Joes"},{"first_name":"Peer","full_name":"Bärmann, Peer","last_name":"Bärmann"},{"first_name":"Mailis","full_name":"Lounasvuori, Mailis","last_name":"Lounasvuori"},{"last_name":"Javed","full_name":"Javed, Ali","first_name":"Ali"},{"first_name":"Michael","id":"23547","full_name":"Tiemann, Michael","orcid":"0000-0003-1711-2722","last_name":"Tiemann"},{"full_name":"Golnak, Ronny","last_name":"Golnak","first_name":"Ronny"},{"first_name":"Jie","full_name":"Xiao, Jie","last_name":"Xiao"},{"last_name":"Petit","full_name":"Petit, Tristan","first_name":"Tristan"},{"last_name":"Placke","full_name":"Placke, Tobias","first_name":"Tobias"},{"full_name":"Winter, Martin","last_name":"Winter","first_name":"Martin"}],"doi":"10.1002/anie.202303111","main_file_link":[{"open_access":"1"}],"publication_identifier":{"issn":["1433-7851","1521-3773"]},"publication_status":"published","intvolume":"        62","page":"e202303111","citation":{"bibtex":"@article{Wrogemann_Lüther_Bärmann_Lounasvuori_Javed_Tiemann_Golnak_Xiao_Petit_Placke_et al._2023, title={Overcoming Diffusion Limitation of Faradaic Processes: Property‐Performance Relationships of 2D Conductive Metal‐Organic Framework Cu3(HHTP)2 for Reversible Lithium‐Ion Storage}, volume={62}, DOI={<a href=\"https://doi.org/10.1002/anie.202303111\">10.1002/anie.202303111</a>}, number={26}, journal={Angewandte Chemie International Edition}, publisher={Wiley}, author={Wrogemann, Jens Matthies and Lüther, Marco Joes and Bärmann, Peer and Lounasvuori, Mailis and Javed, Ali and Tiemann, Michael and Golnak, Ronny and Xiao, Jie and Petit, Tristan and Placke, Tobias and et al.}, year={2023}, pages={e202303111} }","short":"J.M. Wrogemann, M.J. Lüther, P. Bärmann, M. Lounasvuori, A. Javed, M. Tiemann, R. Golnak, J. Xiao, T. Petit, T. Placke, M. Winter, Angewandte Chemie International Edition 62 (2023) e202303111.","mla":"Wrogemann, Jens Matthies, et al. “Overcoming Diffusion Limitation of Faradaic Processes: Property‐Performance Relationships of 2D Conductive Metal‐Organic Framework Cu3(HHTP)2 for Reversible Lithium‐Ion Storage.” <i>Angewandte Chemie International Edition</i>, vol. 62, no. 26, Wiley, 2023, p. e202303111, doi:<a href=\"https://doi.org/10.1002/anie.202303111\">10.1002/anie.202303111</a>.","apa":"Wrogemann, J. M., Lüther, M. J., Bärmann, P., Lounasvuori, M., Javed, A., Tiemann, M., Golnak, R., Xiao, J., Petit, T., Placke, T., &#38; Winter, M. (2023). Overcoming Diffusion Limitation of Faradaic Processes: Property‐Performance Relationships of 2D Conductive Metal‐Organic Framework Cu3(HHTP)2 for Reversible Lithium‐Ion Storage. <i>Angewandte Chemie International Edition</i>, <i>62</i>(26), e202303111. <a href=\"https://doi.org/10.1002/anie.202303111\">https://doi.org/10.1002/anie.202303111</a>","ieee":"J. M. Wrogemann <i>et al.</i>, “Overcoming Diffusion Limitation of Faradaic Processes: Property‐Performance Relationships of 2D Conductive Metal‐Organic Framework Cu3(HHTP)2 for Reversible Lithium‐Ion Storage,” <i>Angewandte Chemie International Edition</i>, vol. 62, no. 26, p. e202303111, 2023, doi: <a href=\"https://doi.org/10.1002/anie.202303111\">10.1002/anie.202303111</a>.","chicago":"Wrogemann, Jens Matthies, Marco Joes Lüther, Peer Bärmann, Mailis Lounasvuori, Ali Javed, Michael Tiemann, Ronny Golnak, et al. “Overcoming Diffusion Limitation of Faradaic Processes: Property‐Performance Relationships of 2D Conductive Metal‐Organic Framework Cu3(HHTP)2 for Reversible Lithium‐Ion Storage.” <i>Angewandte Chemie International Edition</i> 62, no. 26 (2023): e202303111. <a href=\"https://doi.org/10.1002/anie.202303111\">https://doi.org/10.1002/anie.202303111</a>.","ama":"Wrogemann JM, Lüther MJ, Bärmann P, et al. Overcoming Diffusion Limitation of Faradaic Processes: Property‐Performance Relationships of 2D Conductive Metal‐Organic Framework Cu3(HHTP)2 for Reversible Lithium‐Ion Storage. <i>Angewandte Chemie International Edition</i>. 2023;62(26):e202303111. doi:<a href=\"https://doi.org/10.1002/anie.202303111\">10.1002/anie.202303111</a>"}}]