[{"year":"2016","citation":{"mla":"Weiss, Alexander, et al. “Screening of Mixed-Linker CAU-10 MOF Materials for Humidity Sensing by Impedance Spectroscopy.” <i>Microporous and Mesoporous Materials</i>, 2016, pp. 39–43, doi:<a href=\"https://doi.org/10.1016/j.micromeso.2015.08.020\">10.1016/j.micromeso.2015.08.020</a>.","short":"A. Weiss, N. Reimer, N. Stock, M. Tiemann, T. Wagner, Microporous and Mesoporous Materials (2016) 39–43.","bibtex":"@article{Weiss_Reimer_Stock_Tiemann_Wagner_2016, title={Screening of mixed-linker CAU-10 MOF materials for humidity sensing by impedance spectroscopy}, DOI={<a href=\"https://doi.org/10.1016/j.micromeso.2015.08.020\">10.1016/j.micromeso.2015.08.020</a>}, journal={Microporous and Mesoporous Materials}, author={Weiss, Alexander and Reimer, Nele and Stock, Norbert and Tiemann, Michael and Wagner, Thorsten}, year={2016}, pages={39–43} }","apa":"Weiss, A., Reimer, N., Stock, N., Tiemann, M., &#38; Wagner, T. (2016). Screening of mixed-linker CAU-10 MOF materials for humidity sensing by impedance spectroscopy. <i>Microporous and Mesoporous Materials</i>, 39–43. <a href=\"https://doi.org/10.1016/j.micromeso.2015.08.020\">https://doi.org/10.1016/j.micromeso.2015.08.020</a>","ieee":"A. Weiss, N. Reimer, N. Stock, M. Tiemann, and T. Wagner, “Screening of mixed-linker CAU-10 MOF materials for humidity sensing by impedance spectroscopy,” <i>Microporous and Mesoporous Materials</i>, pp. 39–43, 2016, doi: <a href=\"https://doi.org/10.1016/j.micromeso.2015.08.020\">10.1016/j.micromeso.2015.08.020</a>.","chicago":"Weiss, Alexander, Nele Reimer, Norbert Stock, Michael Tiemann, and Thorsten Wagner. “Screening of Mixed-Linker CAU-10 MOF Materials for Humidity Sensing by Impedance Spectroscopy.” <i>Microporous and Mesoporous Materials</i>, 2016, 39–43. <a href=\"https://doi.org/10.1016/j.micromeso.2015.08.020\">https://doi.org/10.1016/j.micromeso.2015.08.020</a>.","ama":"Weiss A, Reimer N, Stock N, Tiemann M, Wagner T. Screening of mixed-linker CAU-10 MOF materials for humidity sensing by impedance spectroscopy. <i>Microporous and Mesoporous Materials</i>. Published online 2016:39-43. doi:<a href=\"https://doi.org/10.1016/j.micromeso.2015.08.020\">10.1016/j.micromeso.2015.08.020</a>"},"page":"39-43","publication_status":"published","publication_identifier":{"issn":["1387-1811"]},"quality_controlled":"1","title":"Screening of mixed-linker CAU-10 MOF materials for humidity sensing by impedance spectroscopy","doi":"10.1016/j.micromeso.2015.08.020","date_updated":"2023-03-08T10:27:01Z","author":[{"last_name":"Weiss","full_name":"Weiss, Alexander","first_name":"Alexander"},{"full_name":"Reimer, Nele","last_name":"Reimer","first_name":"Nele"},{"full_name":"Stock, Norbert","last_name":"Stock","first_name":"Norbert"},{"first_name":"Michael","orcid":"0000-0003-1711-2722","last_name":"Tiemann","id":"23547","full_name":"Tiemann, Michael"},{"full_name":"Wagner, Thorsten","last_name":"Wagner","first_name":"Thorsten"}],"date_created":"2021-10-08T11:10:33Z","abstract":[{"text":"The sorption properties of mixed-linker CAU-10 type metal organic frameworks (MOFs), [Al(OH)(1,3-BDC-X)n(1,3-BDC-SO3H)m] with 1,3-BDC = 1,3-benzenedicarboxyliate, X = H, NO2 or OH, 0.76 ≤ n ≤ 0.89 and 0.11 ≤ m ≤ 0.24, can be varied by surface modification through variation of the respective linker molecules. It is thus possible to design surface-modified CAU-10 type MOFs with variable affinity and accessibility of the pores for water vapour. When used as a dielectric in a capacitor, the MOF material will change its permittivity depending on the amount of physisorbed water; this is the working principle of capacitive humidity sensors. Three different mixed-linker compounds with CAU-10 structure are compared regarding their water sorption and impedance characteristics. A setup was developed allowing the characterization of the MOF samples under exposure to different relative humidity values in air by impedance spectroscopy. Interpretation of the results by means of standard models shows that the MOFs are qualified for functional layers of capacitive humidity sensors. Since the prepared MOFs are more temperature-stable than many commonly used polymers they offer the potential to build a new generation of high-temperature (up to 350 °C) humidity sensors.","lang":"eng"}],"status":"public","type":"journal_article","publication":"Microporous and Mesoporous Materials","article_type":"original","language":[{"iso":"eng"}],"_id":"25919","user_id":"23547","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}]},{"type":"journal_article","status":"public","department":[{"_id":"35"},{"_id":"307"},{"_id":"2"}],"user_id":"23547","_id":"25917","article_type":"original","publication_identifier":{"issn":["2050-7488","2050-7496"]},"publication_status":"published","page":"18426-18431","citation":{"mla":"Weinberger, Christian, et al. “Selective Surface Modification in Bimodal Mesoporous CMK-5 Carbon.” <i>Journal of Materials Chemistry A</i>, 2016, pp. 18426–31, doi:<a href=\"https://doi.org/10.1039/c6ta07772b\">10.1039/c6ta07772b</a>.","short":"C. Weinberger, X. Cao, M. Tiemann, Journal of Materials Chemistry A (2016) 18426–18431.","bibtex":"@article{Weinberger_Cao_Tiemann_2016, title={Selective surface modification in bimodal mesoporous CMK-5 carbon}, DOI={<a href=\"https://doi.org/10.1039/c6ta07772b\">10.1039/c6ta07772b</a>}, journal={Journal of Materials Chemistry A}, author={Weinberger, Christian and Cao, X. and Tiemann, Michael}, year={2016}, pages={18426–18431} }","apa":"Weinberger, C., Cao, X., &#38; Tiemann, M. (2016). Selective surface modification in bimodal mesoporous CMK-5 carbon. <i>Journal of Materials Chemistry A</i>, 18426–18431. <a href=\"https://doi.org/10.1039/c6ta07772b\">https://doi.org/10.1039/c6ta07772b</a>","chicago":"Weinberger, Christian, X. Cao, and Michael Tiemann. “Selective Surface Modification in Bimodal Mesoporous CMK-5 Carbon.” <i>Journal of Materials Chemistry A</i>, 2016, 18426–31. <a href=\"https://doi.org/10.1039/c6ta07772b\">https://doi.org/10.1039/c6ta07772b</a>.","ieee":"C. Weinberger, X. Cao, and M. Tiemann, “Selective surface modification in bimodal mesoporous CMK-5 carbon,” <i>Journal of Materials Chemistry A</i>, pp. 18426–18431, 2016, doi: <a href=\"https://doi.org/10.1039/c6ta07772b\">10.1039/c6ta07772b</a>.","ama":"Weinberger C, Cao X, Tiemann M. Selective surface modification in bimodal mesoporous CMK-5 carbon. <i>Journal of Materials Chemistry A</i>. Published online 2016:18426-18431. doi:<a href=\"https://doi.org/10.1039/c6ta07772b\">10.1039/c6ta07772b</a>"},"author":[{"first_name":"Christian","full_name":"Weinberger, Christian","id":"11848","last_name":"Weinberger"},{"full_name":"Cao, X.","last_name":"Cao","first_name":"X."},{"first_name":"Michael","full_name":"Tiemann, Michael","id":"23547","last_name":"Tiemann","orcid":"0000-0003-1711-2722"}],"date_updated":"2023-03-08T10:26:30Z","oa":"1","doi":"10.1039/c6ta07772b","main_file_link":[{"open_access":"1","url":"https://pubs.rsc.org/en/content/articlepdf/2016/ta/c6ta07772b"}],"publication":"Journal of Materials Chemistry A","abstract":[{"text":"Ordered, bimodal mesoporous CMK-5 carbon is prepared by using mesoporous SBA-15 silica as a structural mold. The carbon material is chemically modified by oxidative treatment with acidic persulfate solution. This leads to the creation of oxygen-containing functionalities at the pore walls of the carbon (up to 13 wt% oxygen), as confirmed by IR spectroscopy. The oxidative treatment is carried out before removal of the silica mold which ensures that only one of the two distinct modes of mesopores (namely, the intra-tubular pores) is affected; the other mode (inter-tubular pores) is protected from oxidation by the presence of the silica mold. This is proven by water vapor physisorption analysis. The oxidatively treated (intra-tubular) pores are significantly more polar and, hence, better wettable than the untreated (inter-tubular) pores.","lang":"eng"}],"language":[{"iso":"eng"}],"quality_controlled":"1","year":"2016","date_created":"2021-10-08T11:08:36Z","title":"Selective surface modification in bimodal mesoporous CMK-5 carbon"},{"status":"public","abstract":[{"text":"Characterization and application of (meso)porous materials often require information about the density of the respective samples. For example, the BET surface area is, by definition, normalized to the sample mass; hence, any comparison between samples of different composition needs to take into account their respective densities. Literature data on the densities of porous materials are scarce. Frequently, only bulk-phase densities are available which sometimes differ from those of porous samples, especially for amorphous systems, such as silica or carbon. The apparent density, i.e. the density of the sample excluding the gas-accessible pore volume, is typically determined by helium gas pycnometry utilizing specialized pycnometers. We demonstrate how to obtain the same data from standard N2 physisorption measurements as part of the regular measurement routine. We evaluate the method by reference measurements utilizing a non-porous reference sample (glass rod) to confirm the validity of the method. Then we present results on apparent density measurements of several mesoporous silica materials (MCM-41, MCM-48, SBA-15, KIT-6), mesoporous carbon (CMK-3, -5, -8, -9), and a variety of mesoporous metal oxides obtained by nanocasting.","lang":"eng"}],"type":"journal_article","publication":"Microporous and Mesoporous Materials","language":[{"iso":"eng"}],"article_type":"original","user_id":"23547","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"_id":"25918","citation":{"ama":"Weinberger C, Vetter S, Tiemann M, Wagner T. Assessment of the density of (meso)porous materials from standard volumetric physisorption data. <i>Microporous and Mesoporous Materials</i>. Published online 2016:53-57. doi:<a href=\"https://doi.org/10.1016/j.micromeso.2015.10.027\">10.1016/j.micromeso.2015.10.027</a>","chicago":"Weinberger, Christian, Simon Vetter, Michael Tiemann, and Thorsten Wagner. “Assessment of the Density of (Meso)Porous Materials from Standard Volumetric Physisorption Data.” <i>Microporous and Mesoporous Materials</i>, 2016, 53–57. <a href=\"https://doi.org/10.1016/j.micromeso.2015.10.027\">https://doi.org/10.1016/j.micromeso.2015.10.027</a>.","ieee":"C. Weinberger, S. Vetter, M. Tiemann, and T. Wagner, “Assessment of the density of (meso)porous materials from standard volumetric physisorption data,” <i>Microporous and Mesoporous Materials</i>, pp. 53–57, 2016, doi: <a href=\"https://doi.org/10.1016/j.micromeso.2015.10.027\">10.1016/j.micromeso.2015.10.027</a>.","short":"C. Weinberger, S. Vetter, M. Tiemann, T. Wagner, Microporous and Mesoporous Materials (2016) 53–57.","bibtex":"@article{Weinberger_Vetter_Tiemann_Wagner_2016, title={Assessment of the density of (meso)porous materials from standard volumetric physisorption data}, DOI={<a href=\"https://doi.org/10.1016/j.micromeso.2015.10.027\">10.1016/j.micromeso.2015.10.027</a>}, journal={Microporous and Mesoporous Materials}, author={Weinberger, Christian and Vetter, Simon and Tiemann, Michael and Wagner, Thorsten}, year={2016}, pages={53–57} }","mla":"Weinberger, Christian, et al. “Assessment of the Density of (Meso)Porous Materials from Standard Volumetric Physisorption Data.” <i>Microporous and Mesoporous Materials</i>, 2016, pp. 53–57, doi:<a href=\"https://doi.org/10.1016/j.micromeso.2015.10.027\">10.1016/j.micromeso.2015.10.027</a>.","apa":"Weinberger, C., Vetter, S., Tiemann, M., &#38; Wagner, T. (2016). Assessment of the density of (meso)porous materials from standard volumetric physisorption data. <i>Microporous and Mesoporous Materials</i>, 53–57. <a href=\"https://doi.org/10.1016/j.micromeso.2015.10.027\">https://doi.org/10.1016/j.micromeso.2015.10.027</a>"},"page":"53-57","year":"2016","publication_status":"published","publication_identifier":{"issn":["1387-1811"]},"quality_controlled":"1","doi":"10.1016/j.micromeso.2015.10.027","title":"Assessment of the density of (meso)porous materials from standard volumetric physisorption data","date_created":"2021-10-08T11:09:42Z","author":[{"last_name":"Weinberger","full_name":"Weinberger, Christian","id":"11848","first_name":"Christian"},{"first_name":"Simon","last_name":"Vetter","full_name":"Vetter, Simon"},{"first_name":"Michael","id":"23547","full_name":"Tiemann, Michael","orcid":"0000-0003-1711-2722","last_name":"Tiemann"},{"last_name":"Wagner","full_name":"Wagner, Thorsten","first_name":"Thorsten"}],"date_updated":"2023-03-08T10:27:33Z"},{"publication_identifier":{"issn":["1463-9076","1463-9084"]},"publication_status":"published","page":"21634-21642","citation":{"chicago":"Weiss, Alexander, Nele Reimer, Norbert Stock, Michael Tiemann, and Thorsten Wagner. “Surface-Modified CAU-10 MOF Materials as Humidity Sensors: Impedance Spectroscopic Study on Water Uptake.” <i>Physical Chemistry Chemical Physics</i>, 2015, 21634–42. <a href=\"https://doi.org/10.1039/c5cp01988e\">https://doi.org/10.1039/c5cp01988e</a>.","ieee":"A. Weiss, N. Reimer, N. Stock, M. Tiemann, and T. Wagner, “Surface-modified CAU-10 MOF materials as humidity sensors: impedance spectroscopic study on water uptake,” <i>Physical Chemistry Chemical Physics</i>, pp. 21634–21642, 2015, doi: <a href=\"https://doi.org/10.1039/c5cp01988e\">10.1039/c5cp01988e</a>.","ama":"Weiss A, Reimer N, Stock N, Tiemann M, Wagner T. Surface-modified CAU-10 MOF materials as humidity sensors: impedance spectroscopic study on water uptake. <i>Physical Chemistry Chemical Physics</i>. Published online 2015:21634-21642. doi:<a href=\"https://doi.org/10.1039/c5cp01988e\">10.1039/c5cp01988e</a>","mla":"Weiss, Alexander, et al. “Surface-Modified CAU-10 MOF Materials as Humidity Sensors: Impedance Spectroscopic Study on Water Uptake.” <i>Physical Chemistry Chemical Physics</i>, 2015, pp. 21634–42, doi:<a href=\"https://doi.org/10.1039/c5cp01988e\">10.1039/c5cp01988e</a>.","bibtex":"@article{Weiss_Reimer_Stock_Tiemann_Wagner_2015, title={Surface-modified CAU-10 MOF materials as humidity sensors: impedance spectroscopic study on water uptake}, DOI={<a href=\"https://doi.org/10.1039/c5cp01988e\">10.1039/c5cp01988e</a>}, journal={Physical Chemistry Chemical Physics}, author={Weiss, Alexander and Reimer, Nele and Stock, Norbert and Tiemann, Michael and Wagner, Thorsten}, year={2015}, pages={21634–21642} }","short":"A. Weiss, N. Reimer, N. Stock, M. Tiemann, T. Wagner, Physical Chemistry Chemical Physics (2015) 21634–21642.","apa":"Weiss, A., Reimer, N., Stock, N., Tiemann, M., &#38; Wagner, T. (2015). Surface-modified CAU-10 MOF materials as humidity sensors: impedance spectroscopic study on water uptake. <i>Physical Chemistry Chemical Physics</i>, 21634–21642. <a href=\"https://doi.org/10.1039/c5cp01988e\">https://doi.org/10.1039/c5cp01988e</a>"},"author":[{"full_name":"Weiss, Alexander","last_name":"Weiss","first_name":"Alexander"},{"full_name":"Reimer, Nele","last_name":"Reimer","first_name":"Nele"},{"last_name":"Stock","full_name":"Stock, Norbert","first_name":"Norbert"},{"first_name":"Michael","last_name":"Tiemann","orcid":"0000-0003-1711-2722","full_name":"Tiemann, Michael","id":"23547"},{"full_name":"Wagner, Thorsten","last_name":"Wagner","first_name":"Thorsten"}],"oa":"1","date_updated":"2023-03-08T10:28:19Z","doi":"10.1039/c5cp01988e","main_file_link":[{"url":"https://pubs.rsc.org/en/content/articlepdf/2015/cp/c5cp01988e","open_access":"1"}],"type":"journal_article","status":"public","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"user_id":"23547","_id":"25940","article_type":"original","quality_controlled":"1","year":"2015","date_created":"2021-10-08T15:47:59Z","title":"Surface-modified CAU-10 MOF materials as humidity sensors: impedance spectroscopic study on water uptake","publication":"Physical Chemistry Chemical Physics","abstract":[{"text":"Metal–organic frameworks (MOFs) are crystalline microporous materials with tunable chemical and physical properties. By combining various metal clusters with different interconnecting organic linkers, the pore structure, crystallinity, as well as the surface properties can be modified. In the present work, modification of the organic linker molecules is utilized to synthesize CAU-10 type MOFs with variable affinity of the pore surface to water. In principle, this should influence the accessibility of the pores for water vapor and therefore offer a tool to control its sorption properties. For a deeper understanding we studied the water sorption characteristics and compared the results to the conductive and dielectric properties studied by impedance spectroscopy. Spectra in a wide frequency range from 1 mHz to 1 MHz were recorded. Data analysis is performed using the Havriliak–Negami model. The MOFs are also tested as sensitive layers for capacitive humidity sensing by correlating the change in permittivity of the materials with the amount of physisorbed water. Such an MOF-based sensor was tested with respect to environmental monitoring and compared to a commonly used commercial humidity sensor.","lang":"eng"}],"language":[{"iso":"eng"}]},{"status":"public","abstract":[{"lang":"eng","text":"A variety of metal nitrates were filled into the pores of an ordered mesoporous CMK-3 carbon matrix by solution-based impregnation. Thermal conversion of the metal nitrates into the respective metal oxides, and subsequent removal of the carbon matrix by thermal combustion, provides a versatile means to prepare mesoporous metal oxides (so-called nanocasting). This study aims to monitor the thermally induced processes by thermogravimetric analysis (TGA), coupled with mass ion detection (MS). The highly dispersed metal nitrates in the pores of the carbon matrix tend to react to the respective metal oxides at lower temperature than reported in the literature for pure, i.e., carbon-free, metal nitrates. The subsequent thermal combustion of the CMK-3 carbon matrix also occurs at lower temperature, which is explained by a catalytic effect of the metal oxides present in the pores. This catalytic effect is particularly strong for oxides of redox active metals, such as transition group VII and VIII metals (Mn, Fe, Co, Ni), Cu, and Ce."}],"type":"journal_article","publication":"Nanomaterials","language":[{"iso":"eng"}],"article_type":"original","user_id":"23547","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"_id":"25939","citation":{"short":"C. Weinberger, J. Roggenbuck, J. Hanss, M. Tiemann, Nanomaterials (2015) 1431–1441.","mla":"Weinberger, Christian, et al. “Synthesis of Mesoporous Metal Oxides by Structure Replication: Thermal Analysis of Metal Nitrates in Porous Carbon Matrices.” <i>Nanomaterials</i>, 2015, pp. 1431–41, doi:<a href=\"https://doi.org/10.3390/nano5031431\">10.3390/nano5031431</a>.","bibtex":"@article{Weinberger_Roggenbuck_Hanss_Tiemann_2015, title={Synthesis of Mesoporous Metal Oxides by Structure Replication: Thermal Analysis of Metal Nitrates in Porous Carbon Matrices}, DOI={<a href=\"https://doi.org/10.3390/nano5031431\">10.3390/nano5031431</a>}, journal={Nanomaterials}, author={Weinberger, Christian and Roggenbuck, Jan and Hanss, Jan and Tiemann, Michael}, year={2015}, pages={1431–1441} }","apa":"Weinberger, C., Roggenbuck, J., Hanss, J., &#38; Tiemann, M. (2015). Synthesis of Mesoporous Metal Oxides by Structure Replication: Thermal Analysis of Metal Nitrates in Porous Carbon Matrices. <i>Nanomaterials</i>, 1431–1441. <a href=\"https://doi.org/10.3390/nano5031431\">https://doi.org/10.3390/nano5031431</a>","ama":"Weinberger C, Roggenbuck J, Hanss J, Tiemann M. Synthesis of Mesoporous Metal Oxides by Structure Replication: Thermal Analysis of Metal Nitrates in Porous Carbon Matrices. <i>Nanomaterials</i>. Published online 2015:1431-1441. doi:<a href=\"https://doi.org/10.3390/nano5031431\">10.3390/nano5031431</a>","ieee":"C. Weinberger, J. Roggenbuck, J. Hanss, and M. Tiemann, “Synthesis of Mesoporous Metal Oxides by Structure Replication: Thermal Analysis of Metal Nitrates in Porous Carbon Matrices,” <i>Nanomaterials</i>, pp. 1431–1441, 2015, doi: <a href=\"https://doi.org/10.3390/nano5031431\">10.3390/nano5031431</a>.","chicago":"Weinberger, Christian, Jan Roggenbuck, Jan Hanss, and Michael Tiemann. “Synthesis of Mesoporous Metal Oxides by Structure Replication: Thermal Analysis of Metal Nitrates in Porous Carbon Matrices.” <i>Nanomaterials</i>, 2015, 1431–41. <a href=\"https://doi.org/10.3390/nano5031431\">https://doi.org/10.3390/nano5031431</a>."},"page":"1431-1441","year":"2015","publication_status":"published","quality_controlled":"1","publication_identifier":{"issn":["2079-4991"]},"main_file_link":[{"open_access":"1","url":"https://www.mdpi.com/2079-4991/5/3/1431/pdf?version=1440760886"}],"doi":"10.3390/nano5031431","title":"Synthesis of Mesoporous Metal Oxides by Structure Replication: Thermal Analysis of Metal Nitrates in Porous Carbon Matrices","author":[{"id":"11848","full_name":"Weinberger, Christian","last_name":"Weinberger","first_name":"Christian"},{"first_name":"Jan","last_name":"Roggenbuck","full_name":"Roggenbuck, Jan"},{"first_name":"Jan","last_name":"Hanss","full_name":"Hanss, Jan"},{"first_name":"Michael","last_name":"Tiemann","orcid":"0000-0003-1711-2722","id":"23547","full_name":"Tiemann, Michael"}],"date_created":"2021-10-08T13:49:57Z","date_updated":"2023-03-08T10:29:19Z","oa":"1"},{"_id":"25941","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"user_id":"23547","article_type":"original","language":[{"iso":"eng"}],"publication":"Sensors and Actuators B: Chemical","type":"journal_article","abstract":[{"text":"Ordered mesoporous In2O3 particles of variable size synthesized by the nanocasting method are used for preparation of resistive gas-sensing layers. Light activation by a LED (blue light, 460 nm) permits room-temperature ozone sensing. Apart from differences in base-line resistance in sensing layers containing small (diameter approx. 170 nm) or large particles (approx. 870 nm), differences in the response amplitude and response time constant are also observed. Signal stabilization is achieved faster for small particles. In addition, sensors show a particle size-dependent reaction threshold for low ozone concentration. Larger particles show negligible response to 50 ppb ozone whereas a significant response is observed for the small-particle sensors. A simple model based on geometrical properties and formation of depletion layers explaining the observed behavior is presented.","lang":"eng"}],"status":"public","date_updated":"2023-03-08T10:28:39Z","author":[{"full_name":"Klaus, Dominik","last_name":"Klaus","first_name":"Dominik"},{"last_name":"Klawinski","full_name":"Klawinski, Danielle","first_name":"Danielle"},{"last_name":"Amrehn","full_name":"Amrehn, Sabrina","first_name":"Sabrina"},{"first_name":"Michael","full_name":"Tiemann, Michael","id":"23547","last_name":"Tiemann","orcid":"0000-0003-1711-2722"},{"first_name":"Thorsten","last_name":"Wagner","full_name":"Wagner, Thorsten"}],"date_created":"2021-10-08T15:48:52Z","title":"Light-activated resistive ozone sensing at room temperature utilizing nanoporous In2O3 particles: Influence of particle size","doi":"10.1016/j.snb.2014.09.021","quality_controlled":"1","publication_identifier":{"issn":["0925-4005"]},"publication_status":"published","year":"2015","page":"181-185","citation":{"ama":"Klaus D, Klawinski D, Amrehn S, Tiemann M, Wagner T. Light-activated resistive ozone sensing at room temperature utilizing nanoporous In2O3 particles: Influence of particle size. <i>Sensors and Actuators B: Chemical</i>. Published online 2015:181-185. doi:<a href=\"https://doi.org/10.1016/j.snb.2014.09.021\">10.1016/j.snb.2014.09.021</a>","chicago":"Klaus, Dominik, Danielle Klawinski, Sabrina Amrehn, Michael Tiemann, and Thorsten Wagner. “Light-Activated Resistive Ozone Sensing at Room Temperature Utilizing Nanoporous In2O3 Particles: Influence of Particle Size.” <i>Sensors and Actuators B: Chemical</i>, 2015, 181–85. <a href=\"https://doi.org/10.1016/j.snb.2014.09.021\">https://doi.org/10.1016/j.snb.2014.09.021</a>.","ieee":"D. Klaus, D. Klawinski, S. Amrehn, M. Tiemann, and T. Wagner, “Light-activated resistive ozone sensing at room temperature utilizing nanoporous In2O3 particles: Influence of particle size,” <i>Sensors and Actuators B: Chemical</i>, pp. 181–185, 2015, doi: <a href=\"https://doi.org/10.1016/j.snb.2014.09.021\">10.1016/j.snb.2014.09.021</a>.","apa":"Klaus, D., Klawinski, D., Amrehn, S., Tiemann, M., &#38; Wagner, T. (2015). Light-activated resistive ozone sensing at room temperature utilizing nanoporous In2O3 particles: Influence of particle size. <i>Sensors and Actuators B: Chemical</i>, 181–185. <a href=\"https://doi.org/10.1016/j.snb.2014.09.021\">https://doi.org/10.1016/j.snb.2014.09.021</a>","mla":"Klaus, Dominik, et al. “Light-Activated Resistive Ozone Sensing at Room Temperature Utilizing Nanoporous In2O3 Particles: Influence of Particle Size.” <i>Sensors and Actuators B: Chemical</i>, 2015, pp. 181–85, doi:<a href=\"https://doi.org/10.1016/j.snb.2014.09.021\">10.1016/j.snb.2014.09.021</a>.","bibtex":"@article{Klaus_Klawinski_Amrehn_Tiemann_Wagner_2015, title={Light-activated resistive ozone sensing at room temperature utilizing nanoporous In2O3 particles: Influence of particle size}, DOI={<a href=\"https://doi.org/10.1016/j.snb.2014.09.021\">10.1016/j.snb.2014.09.021</a>}, journal={Sensors and Actuators B: Chemical}, author={Klaus, Dominik and Klawinski, Danielle and Amrehn, Sabrina and Tiemann, Michael and Wagner, Thorsten}, year={2015}, pages={181–185} }","short":"D. Klaus, D. Klawinski, S. Amrehn, M. Tiemann, T. Wagner, Sensors and Actuators B: Chemical (2015) 181–185."}},{"date_updated":"2023-03-08T10:29:53Z","author":[{"full_name":"Vetter, S.","last_name":"Vetter","first_name":"S."},{"last_name":"Haffer","full_name":"Haffer, S.","first_name":"S."},{"full_name":"Wagner, T.","last_name":"Wagner","first_name":"T."},{"first_name":"Michael","last_name":"Tiemann","orcid":"0000-0003-1711-2722","full_name":"Tiemann, Michael","id":"23547"}],"date_created":"2021-10-08T15:50:03Z","title":"Nanostructured Co3O4 as a CO gas sensor: Temperature-dependent behavior","doi":"10.1016/j.snb.2014.09.025","publication_identifier":{"issn":["0925-4005"]},"quality_controlled":"1","publication_status":"published","year":"2015","page":"133-138","citation":{"chicago":"Vetter, S., S. Haffer, T. Wagner, and Michael Tiemann. “Nanostructured Co3O4 as a CO Gas Sensor: Temperature-Dependent Behavior.” <i>Sensors and Actuators B: Chemical</i>, 2015, 133–38. <a href=\"https://doi.org/10.1016/j.snb.2014.09.025\">https://doi.org/10.1016/j.snb.2014.09.025</a>.","ieee":"S. Vetter, S. Haffer, T. Wagner, and M. Tiemann, “Nanostructured Co3O4 as a CO gas sensor: Temperature-dependent behavior,” <i>Sensors and Actuators B: Chemical</i>, pp. 133–138, 2015, doi: <a href=\"https://doi.org/10.1016/j.snb.2014.09.025\">10.1016/j.snb.2014.09.025</a>.","ama":"Vetter S, Haffer S, Wagner T, Tiemann M. Nanostructured Co3O4 as a CO gas sensor: Temperature-dependent behavior. <i>Sensors and Actuators B: Chemical</i>. Published online 2015:133-138. doi:<a href=\"https://doi.org/10.1016/j.snb.2014.09.025\">10.1016/j.snb.2014.09.025</a>","apa":"Vetter, S., Haffer, S., Wagner, T., &#38; Tiemann, M. (2015). Nanostructured Co3O4 as a CO gas sensor: Temperature-dependent behavior. <i>Sensors and Actuators B: Chemical</i>, 133–138. <a href=\"https://doi.org/10.1016/j.snb.2014.09.025\">https://doi.org/10.1016/j.snb.2014.09.025</a>","bibtex":"@article{Vetter_Haffer_Wagner_Tiemann_2015, title={Nanostructured Co3O4 as a CO gas sensor: Temperature-dependent behavior}, DOI={<a href=\"https://doi.org/10.1016/j.snb.2014.09.025\">10.1016/j.snb.2014.09.025</a>}, journal={Sensors and Actuators B: Chemical}, author={Vetter, S. and Haffer, S. and Wagner, T. and Tiemann, Michael}, year={2015}, pages={133–138} }","mla":"Vetter, S., et al. “Nanostructured Co3O4 as a CO Gas Sensor: Temperature-Dependent Behavior.” <i>Sensors and Actuators B: Chemical</i>, 2015, pp. 133–38, doi:<a href=\"https://doi.org/10.1016/j.snb.2014.09.025\">10.1016/j.snb.2014.09.025</a>.","short":"S. Vetter, S. Haffer, T. Wagner, M. Tiemann, Sensors and Actuators B: Chemical (2015) 133–138."},"_id":"25942","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"user_id":"23547","article_type":"original","language":[{"iso":"eng"}],"publication":"Sensors and Actuators B: Chemical","type":"journal_article","abstract":[{"lang":"eng","text":"Cobalt oxide spinel (Co3O4) with an ordered nanostructure is used as a resistive gas sensor for carbon monoxide (CO) in low ppm concentrations. The operating temperature has a strong impact on the concentration-dependent sensing behavior. At lower temperature (473 K) the sensor response is governed mainly by surface coverage with CO and/or CO2, whereas at higher temperature (563 K) oxygen diffusion in the crystal lattice of Co3O4 strongly affects the sensing behavior."}],"status":"public"},{"abstract":[{"text":"Catalysis plays a central role in many fields of life, e.g., in biochemical processes, to reduce energy costs and resources in chemical industry and to decrease or even avoid environmental pollution and in energy management. Porous alumina (Al2O3) is an essential material in various applications, especially as a support material for catalysts. It is often prepared by nanocasting using porous carbon materials that serve as rigid structure matrices. In this work, an alternative way to synthesize mesoporous Al2O3 by using hydrogels as porogenic material is presented. Hydrogels can easily be patterned by light and used to imprint their structure onto alumina opening a new approach to fabricate patterned Al2O3. The hydrogels used in this work are based on poly(dimethylacrylamide) and were photo-chemically cross-linked. Followed by a nanocasting process, mesoporous alumina samples were synthesized and characterized by N2 physisorption and X-ray diffraction. The cross-linker amount in the polymer network was varied and the influence on the properties of the Al2O3 is analyzed.","lang":"eng"}],"status":"public","publication":"Colloid and Polymer Science","type":"journal_article","article_type":"original","language":[{"iso":"eng"}],"_id":"25945","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"},{"_id":"311"}],"user_id":"23547","year":"2014","page":"3055-3060","citation":{"short":"W. Birnbaum, C. Weinberger, V. Schill, S. Haffer, M. Tiemann, D. Kuckling, Colloid and Polymer Science (2014) 3055–3060.","mla":"Birnbaum, Wolfgang, et al. “Synthesis of Mesoporous Alumina through Photo Cross-Linked Poly(Dimethylacrylamide) Hydrogels.” <i>Colloid and Polymer Science</i>, 2014, pp. 3055–60, doi:<a href=\"https://doi.org/10.1007/s00396-014-3379-5\">10.1007/s00396-014-3379-5</a>.","bibtex":"@article{Birnbaum_Weinberger_Schill_Haffer_Tiemann_Kuckling_2014, title={Synthesis of mesoporous alumina through photo cross-linked poly(dimethylacrylamide) hydrogels}, DOI={<a href=\"https://doi.org/10.1007/s00396-014-3379-5\">10.1007/s00396-014-3379-5</a>}, journal={Colloid and Polymer Science}, author={Birnbaum, Wolfgang and Weinberger, Christian and Schill, Verena and Haffer, Stefanie and Tiemann, Michael and Kuckling, Dirk}, year={2014}, pages={3055–3060} }","apa":"Birnbaum, W., Weinberger, C., Schill, V., Haffer, S., Tiemann, M., &#38; Kuckling, D. (2014). Synthesis of mesoporous alumina through photo cross-linked poly(dimethylacrylamide) hydrogels. <i>Colloid and Polymer Science</i>, 3055–3060. <a href=\"https://doi.org/10.1007/s00396-014-3379-5\">https://doi.org/10.1007/s00396-014-3379-5</a>","ieee":"W. Birnbaum, C. Weinberger, V. Schill, S. Haffer, M. Tiemann, and D. Kuckling, “Synthesis of mesoporous alumina through photo cross-linked poly(dimethylacrylamide) hydrogels,” <i>Colloid and Polymer Science</i>, pp. 3055–3060, 2014, doi: <a href=\"https://doi.org/10.1007/s00396-014-3379-5\">10.1007/s00396-014-3379-5</a>.","chicago":"Birnbaum, Wolfgang, Christian Weinberger, Verena Schill, Stefanie Haffer, Michael Tiemann, and Dirk Kuckling. “Synthesis of Mesoporous Alumina through Photo Cross-Linked Poly(Dimethylacrylamide) Hydrogels.” <i>Colloid and Polymer Science</i>, 2014, 3055–60. <a href=\"https://doi.org/10.1007/s00396-014-3379-5\">https://doi.org/10.1007/s00396-014-3379-5</a>.","ama":"Birnbaum W, Weinberger C, Schill V, Haffer S, Tiemann M, Kuckling D. Synthesis of mesoporous alumina through photo cross-linked poly(dimethylacrylamide) hydrogels. <i>Colloid and Polymer Science</i>. Published online 2014:3055-3060. doi:<a href=\"https://doi.org/10.1007/s00396-014-3379-5\">10.1007/s00396-014-3379-5</a>"},"publication_identifier":{"issn":["0303-402X","1435-1536"]},"quality_controlled":"1","publication_status":"published","title":"Synthesis of mesoporous alumina through photo cross-linked poly(dimethylacrylamide) hydrogels","doi":"10.1007/s00396-014-3379-5","date_updated":"2023-03-08T10:31:46Z","author":[{"first_name":"Wolfgang","full_name":"Birnbaum, Wolfgang","last_name":"Birnbaum"},{"full_name":"Weinberger, Christian","id":"11848","last_name":"Weinberger","first_name":"Christian"},{"first_name":"Verena","full_name":"Schill, Verena","last_name":"Schill"},{"first_name":"Stefanie","last_name":"Haffer","full_name":"Haffer, Stefanie"},{"first_name":"Michael","orcid":"0000-0003-1711-2722","last_name":"Tiemann","id":"23547","full_name":"Tiemann, Michael"},{"first_name":"Dirk","id":"287","full_name":"Kuckling, Dirk","last_name":"Kuckling"}],"date_created":"2021-10-08T15:53:59Z"},{"_id":"25946","user_id":"23547","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"article_type":"original","language":[{"iso":"eng"}],"type":"journal_article","publication":"Microporous and Mesoporous Materials","abstract":[{"lang":"eng","text":"The synthesis of a periodically ordered, nanostructured composite consisting of CoFe2O4 and BaTiO3 is presented. In a first step, mesoporous CoFe2O4 is prepared by the structure replication method (nanocasting) using mesoporous KIT-6 silica as a structural mold. Subsequently, BaTiO3 is created inside the pores of CoFe2O4 by the citrate route, resulting in a well-ordered composite material of both phases. The two components are known for their distinct ferroic properties, namely ferrimagnetism (CoFe2O4) and ferroelectricity (BaTiO3), respectively. Therefore, this proof of synthesis concept offers new perspectives in the fabrication of composite materials with multiferroic properties."}],"status":"public","date_updated":"2023-03-08T10:32:10Z","author":[{"first_name":"Stefanie","last_name":"Haffer","full_name":"Haffer, Stefanie"},{"first_name":"Christian","last_name":"Lüder","full_name":"Lüder, Christian"},{"last_name":"Walther","full_name":"Walther, Till","first_name":"Till"},{"first_name":"Roberto","full_name":"Köferstein, Roberto","last_name":"Köferstein"},{"first_name":"Stefan G.","last_name":"Ebbinghaus","full_name":"Ebbinghaus, Stefan G."},{"first_name":"Michael","full_name":"Tiemann, Michael","id":"23547","orcid":"0000-0003-1711-2722","last_name":"Tiemann"}],"date_created":"2021-10-08T15:54:53Z","title":"A synthesis concept for a nanostructured CoFe2O4/BaTiO3 composite: Towards multiferroics","doi":"10.1016/j.micromeso.2014.05.023","publication_status":"published","publication_identifier":{"issn":["1387-1811"]},"quality_controlled":"1","year":"2014","citation":{"apa":"Haffer, S., Lüder, C., Walther, T., Köferstein, R., Ebbinghaus, S. G., &#38; Tiemann, M. (2014). A synthesis concept for a nanostructured CoFe2O4/BaTiO3 composite: Towards multiferroics. <i>Microporous and Mesoporous Materials</i>, 300–304. <a href=\"https://doi.org/10.1016/j.micromeso.2014.05.023\">https://doi.org/10.1016/j.micromeso.2014.05.023</a>","mla":"Haffer, Stefanie, et al. “A Synthesis Concept for a Nanostructured CoFe2O4/BaTiO3 Composite: Towards Multiferroics.” <i>Microporous and Mesoporous Materials</i>, 2014, pp. 300–04, doi:<a href=\"https://doi.org/10.1016/j.micromeso.2014.05.023\">10.1016/j.micromeso.2014.05.023</a>.","bibtex":"@article{Haffer_Lüder_Walther_Köferstein_Ebbinghaus_Tiemann_2014, title={A synthesis concept for a nanostructured CoFe2O4/BaTiO3 composite: Towards multiferroics}, DOI={<a href=\"https://doi.org/10.1016/j.micromeso.2014.05.023\">10.1016/j.micromeso.2014.05.023</a>}, journal={Microporous and Mesoporous Materials}, author={Haffer, Stefanie and Lüder, Christian and Walther, Till and Köferstein, Roberto and Ebbinghaus, Stefan G. and Tiemann, Michael}, year={2014}, pages={300–304} }","short":"S. Haffer, C. Lüder, T. Walther, R. Köferstein, S.G. Ebbinghaus, M. Tiemann, Microporous and Mesoporous Materials (2014) 300–304.","ieee":"S. Haffer, C. Lüder, T. Walther, R. Köferstein, S. G. Ebbinghaus, and M. Tiemann, “A synthesis concept for a nanostructured CoFe2O4/BaTiO3 composite: Towards multiferroics,” <i>Microporous and Mesoporous Materials</i>, pp. 300–304, 2014, doi: <a href=\"https://doi.org/10.1016/j.micromeso.2014.05.023\">10.1016/j.micromeso.2014.05.023</a>.","chicago":"Haffer, Stefanie, Christian Lüder, Till Walther, Roberto Köferstein, Stefan G. Ebbinghaus, and Michael Tiemann. “A Synthesis Concept for a Nanostructured CoFe2O4/BaTiO3 Composite: Towards Multiferroics.” <i>Microporous and Mesoporous Materials</i>, 2014, 300–304. <a href=\"https://doi.org/10.1016/j.micromeso.2014.05.023\">https://doi.org/10.1016/j.micromeso.2014.05.023</a>.","ama":"Haffer S, Lüder C, Walther T, Köferstein R, Ebbinghaus SG, Tiemann M. A synthesis concept for a nanostructured CoFe2O4/BaTiO3 composite: Towards multiferroics. <i>Microporous and Mesoporous Materials</i>. Published online 2014:300-304. doi:<a href=\"https://doi.org/10.1016/j.micromeso.2014.05.023\">10.1016/j.micromeso.2014.05.023</a>"},"page":"300-304"},{"author":[{"first_name":"Dominik","last_name":"Klaus","full_name":"Klaus, Dominik"},{"full_name":"Amrehn, Sabrina","last_name":"Amrehn","first_name":"Sabrina"},{"first_name":"Michael","orcid":"0000-0003-1711-2722","last_name":"Tiemann","full_name":"Tiemann, Michael","id":"23547"},{"last_name":"Wagner","full_name":"Wagner, Thorsten","first_name":"Thorsten"}],"date_created":"2021-10-08T15:56:54Z","date_updated":"2023-03-08T10:31:10Z","doi":"10.1016/j.micromeso.2014.01.007","title":"One-step synthesis of multi-modal pore systems in mesoporous In2O3: A detailed study","quality_controlled":"1","publication_identifier":{"issn":["1387-1811"]},"publication_status":"published","page":"133-139","citation":{"ama":"Klaus D, Amrehn S, Tiemann M, Wagner T. One-step synthesis of multi-modal pore systems in mesoporous In2O3: A detailed study. <i>Microporous and Mesoporous Materials</i>. Published online 2014:133-139. doi:<a href=\"https://doi.org/10.1016/j.micromeso.2014.01.007\">10.1016/j.micromeso.2014.01.007</a>","ieee":"D. Klaus, S. Amrehn, M. Tiemann, and T. Wagner, “One-step synthesis of multi-modal pore systems in mesoporous In2O3: A detailed study,” <i>Microporous and Mesoporous Materials</i>, pp. 133–139, 2014, doi: <a href=\"https://doi.org/10.1016/j.micromeso.2014.01.007\">10.1016/j.micromeso.2014.01.007</a>.","chicago":"Klaus, Dominik, Sabrina Amrehn, Michael Tiemann, and Thorsten Wagner. “One-Step Synthesis of Multi-Modal Pore Systems in Mesoporous In2O3: A Detailed Study.” <i>Microporous and Mesoporous Materials</i>, 2014, 133–39. <a href=\"https://doi.org/10.1016/j.micromeso.2014.01.007\">https://doi.org/10.1016/j.micromeso.2014.01.007</a>.","mla":"Klaus, Dominik, et al. “One-Step Synthesis of Multi-Modal Pore Systems in Mesoporous In2O3: A Detailed Study.” <i>Microporous and Mesoporous Materials</i>, 2014, pp. 133–39, doi:<a href=\"https://doi.org/10.1016/j.micromeso.2014.01.007\">10.1016/j.micromeso.2014.01.007</a>.","bibtex":"@article{Klaus_Amrehn_Tiemann_Wagner_2014, title={One-step synthesis of multi-modal pore systems in mesoporous In2O3: A detailed study}, DOI={<a href=\"https://doi.org/10.1016/j.micromeso.2014.01.007\">10.1016/j.micromeso.2014.01.007</a>}, journal={Microporous and Mesoporous Materials}, author={Klaus, Dominik and Amrehn, Sabrina and Tiemann, Michael and Wagner, Thorsten}, year={2014}, pages={133–139} }","short":"D. Klaus, S. Amrehn, M. Tiemann, T. Wagner, Microporous and Mesoporous Materials (2014) 133–139.","apa":"Klaus, D., Amrehn, S., Tiemann, M., &#38; Wagner, T. (2014). One-step synthesis of multi-modal pore systems in mesoporous In2O3: A detailed study. <i>Microporous and Mesoporous Materials</i>, 133–139. <a href=\"https://doi.org/10.1016/j.micromeso.2014.01.007\">https://doi.org/10.1016/j.micromeso.2014.01.007</a>"},"year":"2014","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"user_id":"23547","_id":"25948","language":[{"iso":"eng"}],"article_type":"original","publication":"Microporous and Mesoporous Materials","type":"journal_article","status":"public","abstract":[{"lang":"eng","text":"Ordered mesoporous silica phases (e.g. KIT-6, SBA-15) are used as structure matrices for negative replica structures of mesoporous In2O3. We present a detailed study on how the controlled synthesis of mono-, bi- and trimodal pore systems in the products is accomplished by systematic variation of the procedure of infiltrating a precursor species (In(NO3)3) into the pores of the silica matrix and subsequent thermal conversion into In2O3. Melt impregnation and conversion in a closed reactor facilitates a one-step casting process for ordered mesoporous indium oxide (In2O3). We present a model based on variation of the pore filling."}]},{"_id":"25944","user_id":"23547","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"language":[{"iso":"eng"}],"type":"book_chapter","publication":"Springer Series on Chemical Sensors and Biosensors","abstract":[{"lang":"eng","text":"Recently indium oxide (In2O3) attracted attention as a material for sensing layers in semiconducting gas sensors. Compared to frequently investigated materials like tin dioxide (SnO2), tungsten trioxide (WO3), or gallium oxide (Ga2O3) indium oxide offers some unique properties. The most prominent one is its selectivity to oxidizing gases such as ozone (O3) or nitrogen dioxide (NO2) at low operating temperatures (<150°C). Combined with the photoreduction properties of nanocast, porous In2O3 highly selective sensing layers with a fast response can be prepared. In some cases even room temperature measurements are possible; therefore this material allows for designing low-power sensors without the need for special sensor substrates (e.g., μ-hotplates). Detailed analysis of the sensing mechanism reveals that known sensing models are not able to describe the observed effects. Therefore a new sensing model for ordered nanoporous In2O3 is presented which will be applicable for nonstructured material too."}],"status":"public","date_updated":"2023-03-08T10:33:20Z","author":[{"first_name":"Thorsten","full_name":"Wagner, Thorsten","last_name":"Wagner"},{"first_name":"Nicola","full_name":"Donato, Nicola","last_name":"Donato"},{"orcid":"0000-0003-1711-2722","last_name":"Tiemann","id":"23547","full_name":"Tiemann, Michael","first_name":"Michael"}],"date_created":"2021-10-08T15:52:23Z","title":"New Sensing Model of (Mesoporous) In2O3","doi":"10.1007/5346_2013_57","publication_status":"published","quality_controlled":"1","publication_identifier":{"issn":["1612-7617"]},"place":"Berlin, Heidelberg","year":"2014","citation":{"apa":"Wagner, T., Donato, N., &#38; Tiemann, M. (2014). New Sensing Model of (Mesoporous) In2O3. In <i>Springer Series on Chemical Sensors and Biosensors</i>. <a href=\"https://doi.org/10.1007/5346_2013_57\">https://doi.org/10.1007/5346_2013_57</a>","mla":"Wagner, Thorsten, et al. “New Sensing Model of (Mesoporous) In2O3.” <i>Springer Series on Chemical Sensors and Biosensors</i>, 2014, doi:<a href=\"https://doi.org/10.1007/5346_2013_57\">10.1007/5346_2013_57</a>.","short":"T. Wagner, N. Donato, M. Tiemann, in: Springer Series on Chemical Sensors and Biosensors, Berlin, Heidelberg, 2014.","bibtex":"@inbook{Wagner_Donato_Tiemann_2014, place={Berlin, Heidelberg}, title={New Sensing Model of (Mesoporous) In2O3}, DOI={<a href=\"https://doi.org/10.1007/5346_2013_57\">10.1007/5346_2013_57</a>}, booktitle={Springer Series on Chemical Sensors and Biosensors}, author={Wagner, Thorsten and Donato, Nicola and Tiemann, Michael}, year={2014} }","ieee":"T. Wagner, N. Donato, and M. Tiemann, “New Sensing Model of (Mesoporous) In2O3,” in <i>Springer Series on Chemical Sensors and Biosensors</i>, Berlin, Heidelberg, 2014.","chicago":"Wagner, Thorsten, Nicola Donato, and Michael Tiemann. “New Sensing Model of (Mesoporous) In2O3.” In <i>Springer Series on Chemical Sensors and Biosensors</i>. Berlin, Heidelberg, 2014. <a href=\"https://doi.org/10.1007/5346_2013_57\">https://doi.org/10.1007/5346_2013_57</a>.","ama":"Wagner T, Donato N, Tiemann M. New Sensing Model of (Mesoporous) In2O3. In: <i>Springer Series on Chemical Sensors and Biosensors</i>. ; 2014. doi:<a href=\"https://doi.org/10.1007/5346_2013_57\">10.1007/5346_2013_57</a>"}},{"date_updated":"2023-03-08T10:33:43Z","date_created":"2021-10-08T15:59:34Z","author":[{"last_name":"Aloisio","full_name":"Aloisio, D.","first_name":"D."},{"last_name":"Donato","full_name":"Donato, N.","first_name":"N."},{"first_name":"G.","full_name":"Neri, G.","last_name":"Neri"},{"first_name":"M.","last_name":"Latino","full_name":"Latino, M."},{"full_name":"Wagner, T.","last_name":"Wagner","first_name":"T."},{"last_name":"Tiemann","orcid":"0000-0003-1711-2722","full_name":"Tiemann, Michael","id":"23547","first_name":"Michael"},{"first_name":"P. P.","full_name":"Capra, P. P.","last_name":"Capra"}],"title":"Arduino-Based Shield for Resistive Gas Sensor Array Characterization Under UV Light Exposure","doi":"10.1007/978-3-319-00684-0_79","publication_status":"published","quality_controlled":"1","publication_identifier":{"issn":["1876-1100","1876-1119"]},"place":"Cham","year":"2014","citation":{"short":"D. Aloisio, N. Donato, G. Neri, M. Latino, T. Wagner, M. Tiemann, P.P. Capra, in: Lecture Notes in Electrical Engineering, Cham, 2014.","bibtex":"@inbook{Aloisio_Donato_Neri_Latino_Wagner_Tiemann_Capra_2014, place={Cham}, title={Arduino-Based Shield for Resistive Gas Sensor Array Characterization Under UV Light Exposure}, DOI={<a href=\"https://doi.org/10.1007/978-3-319-00684-0_79\">10.1007/978-3-319-00684-0_79</a>}, booktitle={Lecture Notes in Electrical Engineering}, author={Aloisio, D. and Donato, N. and Neri, G. and Latino, M. and Wagner, T. and Tiemann, Michael and Capra, P. P.}, year={2014} }","mla":"Aloisio, D., et al. “Arduino-Based Shield for Resistive Gas Sensor Array Characterization Under UV Light Exposure.” <i>Lecture Notes in Electrical Engineering</i>, 2014, doi:<a href=\"https://doi.org/10.1007/978-3-319-00684-0_79\">10.1007/978-3-319-00684-0_79</a>.","apa":"Aloisio, D., Donato, N., Neri, G., Latino, M., Wagner, T., Tiemann, M., &#38; Capra, P. P. (2014). Arduino-Based Shield for Resistive Gas Sensor Array Characterization Under UV Light Exposure. In <i>Lecture Notes in Electrical Engineering</i>. <a href=\"https://doi.org/10.1007/978-3-319-00684-0_79\">https://doi.org/10.1007/978-3-319-00684-0_79</a>","ama":"Aloisio D, Donato N, Neri G, et al. Arduino-Based Shield for Resistive Gas Sensor Array Characterization Under UV Light Exposure. In: <i>Lecture Notes in Electrical Engineering</i>. ; 2014. doi:<a href=\"https://doi.org/10.1007/978-3-319-00684-0_79\">10.1007/978-3-319-00684-0_79</a>","ieee":"D. Aloisio <i>et al.</i>, “Arduino-Based Shield for Resistive Gas Sensor Array Characterization Under UV Light Exposure,” in <i>Lecture Notes in Electrical Engineering</i>, Cham, 2014.","chicago":"Aloisio, D., N. Donato, G. Neri, M. Latino, T. Wagner, Michael Tiemann, and P. P. Capra. “Arduino-Based Shield for Resistive Gas Sensor Array Characterization Under UV Light Exposure.” In <i>Lecture Notes in Electrical Engineering</i>. Cham, 2014. <a href=\"https://doi.org/10.1007/978-3-319-00684-0_79\">https://doi.org/10.1007/978-3-319-00684-0_79</a>."},"_id":"25950","user_id":"23547","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"language":[{"iso":"eng"}],"type":"book_chapter","publication":"Lecture Notes in Electrical Engineering","abstract":[{"text":"In this paper, the development and validation of a shield prototype for resistive sensor array characterization with Arduino UNO, a platform based on ATmega328 microcontroller provided by ATMEL, is reported. The resistance variation of the sensor can be evaluated by properly choosing the capacitance value and by measuring the period (frequency) of a custom inverter-based oscillator. The GUI and the developed firmware are able to perform the real-time monitoring of the sensor responses. The developed shield is able to measure the response of up to six sensors under UV radiation by means of LED devices. First results carried out with resistive sensors based on mesoporous In2O3-based material under UV light exposure are reported.","lang":"eng"}],"status":"public"},{"user_id":"23547","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"_id":"25949","language":[{"iso":"eng"}],"type":"book_chapter","publication":"ACS Symposium Series","status":"public","abstract":[{"lang":"eng","text":"Due to their unique properties, ordered mesoporous carbon (OMC) materials prepared by nanocasting have raised great attention in recent years. Their synthesis usually comprises multiple cycles of impregnating a porous structure matrix with an aqueous solution of a suitable precursor, such as sucrose or other, often hazardous, compound. We present a more straightforward variation of this method by using fructose as the precursor compound. By using a solvent-free melt of the precursor, the impregnation requires only a single step. After carbonization by thermal decomposition and removal of the mesoporous silica structure matrix (SBA-15), ordered mesoporous carbon with one (CMK-3) or two (CMK-5) pore modes in two-dimensional, hexagonal symmetry (p6mm) is obtained."}],"date_created":"2021-10-08T15:58:00Z","author":[{"first_name":"Christian","full_name":"Weinberger, Christian","id":"11848","last_name":"Weinberger"},{"last_name":"Haffer","full_name":"Haffer, S.","first_name":"S."},{"first_name":"T.","full_name":"Wagner, T.","last_name":"Wagner"},{"orcid":"0000-0003-1711-2722","last_name":"Tiemann","id":"23547","full_name":"Tiemann, Michael","first_name":"Michael"}],"date_updated":"2023-03-08T10:32:48Z","doi":"10.1021/bk-2014-1183.ch001","title":"Fructose as a Precursor for Mesoporous Carbon: Straightforward Solvent-Free Synthesis by Nanocasting","publication_status":"published","quality_controlled":"1","publication_identifier":{"issn":["0097-6156","1947-5918"]},"citation":{"ama":"Weinberger C, Haffer S, Wagner T, Tiemann M. Fructose as a Precursor for Mesoporous Carbon: Straightforward Solvent-Free Synthesis by Nanocasting. In: <i>ACS Symposium Series</i>. ; 2014. doi:<a href=\"https://doi.org/10.1021/bk-2014-1183.ch001\">10.1021/bk-2014-1183.ch001</a>","ieee":"C. Weinberger, S. Haffer, T. Wagner, and M. Tiemann, “Fructose as a Precursor for Mesoporous Carbon: Straightforward Solvent-Free Synthesis by Nanocasting,” in <i>ACS Symposium Series</i>, Washington, DC, 2014.","chicago":"Weinberger, Christian, S. Haffer, T. Wagner, and Michael Tiemann. “Fructose as a Precursor for Mesoporous Carbon: Straightforward Solvent-Free Synthesis by Nanocasting.” In <i>ACS Symposium Series</i>. Washington, DC, 2014. <a href=\"https://doi.org/10.1021/bk-2014-1183.ch001\">https://doi.org/10.1021/bk-2014-1183.ch001</a>.","apa":"Weinberger, C., Haffer, S., Wagner, T., &#38; Tiemann, M. (2014). Fructose as a Precursor for Mesoporous Carbon: Straightforward Solvent-Free Synthesis by Nanocasting. In <i>ACS Symposium Series</i>. <a href=\"https://doi.org/10.1021/bk-2014-1183.ch001\">https://doi.org/10.1021/bk-2014-1183.ch001</a>","bibtex":"@inbook{Weinberger_Haffer_Wagner_Tiemann_2014, place={Washington, DC}, title={Fructose as a Precursor for Mesoporous Carbon: Straightforward Solvent-Free Synthesis by Nanocasting}, DOI={<a href=\"https://doi.org/10.1021/bk-2014-1183.ch001\">10.1021/bk-2014-1183.ch001</a>}, booktitle={ACS Symposium Series}, author={Weinberger, Christian and Haffer, S. and Wagner, T. and Tiemann, Michael}, year={2014} }","mla":"Weinberger, Christian, et al. “Fructose as a Precursor for Mesoporous Carbon: Straightforward Solvent-Free Synthesis by Nanocasting.” <i>ACS Symposium Series</i>, 2014, doi:<a href=\"https://doi.org/10.1021/bk-2014-1183.ch001\">10.1021/bk-2014-1183.ch001</a>.","short":"C. Weinberger, S. Haffer, T. Wagner, M. Tiemann, in: ACS Symposium Series, Washington, DC, 2014."},"year":"2014","place":"Washington, DC"},{"department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"user_id":"23547","_id":"25951","language":[{"iso":"eng"}],"article_type":"original","publication":"Journal of Nano Education","type":"journal_article","status":"public","abstract":[{"lang":"eng","text":"Nanoporous Materials, like carbons, silica and semiconducting metal oxides, play a major role in recent scientific research, especially in the fields of energy storage, catalysis, material separation and sensor technology. Thus, our aim is to focus on simple synthesis concepts for these materials, such as soft matter templating or nanocasting, which can be easily introduced by means of appropriate models in school chemistry education or school laboratories. In addition to facile and realizable syntheses in school, several experiments concerning catalysis and gas sensing will be presented, too. By these experiments the characteristics of nanoporous materials can be obviously demonstrated and additionally, these experiments can serve as a starting point for further experiments that could easily be developed by students themselves, particularly in relation to environmental issues."}],"author":[{"full_name":"Wilke, Timm","last_name":"Wilke","first_name":"Timm"},{"first_name":"Stefanie","full_name":"Haffer, Stefanie","last_name":"Haffer"},{"first_name":"Christian","full_name":"Weinberger, Christian","id":"11848","last_name":"Weinberger"},{"last_name":"Tiemann","orcid":"0000-0003-1711-2722","id":"23547","full_name":"Tiemann, Michael","first_name":"Michael"},{"first_name":"Thorsten","full_name":"Wagner, Thorsten","last_name":"Wagner"},{"first_name":"Thomas","full_name":"Waitz, Thomas","last_name":"Waitz"}],"date_created":"2021-10-08T16:00:26Z","date_updated":"2023-03-08T10:30:46Z","doi":"10.1166/jne.2014.1044","title":"Nanoporous Materials: Synthesis Concepts and Model Experiments for School Chemistry Education","quality_controlled":"1","publication_identifier":{"issn":["1936-7449"]},"publication_status":"published","page":"117-123","citation":{"ieee":"T. Wilke, S. Haffer, C. Weinberger, M. Tiemann, T. Wagner, and T. Waitz, “Nanoporous Materials: Synthesis Concepts and Model Experiments for School Chemistry Education,” <i>Journal of Nano Education</i>, pp. 117–123, 2014, doi: <a href=\"https://doi.org/10.1166/jne.2014.1044\">10.1166/jne.2014.1044</a>.","chicago":"Wilke, Timm, Stefanie Haffer, Christian Weinberger, Michael Tiemann, Thorsten Wagner, and Thomas Waitz. “Nanoporous Materials: Synthesis Concepts and Model Experiments for School Chemistry Education.” <i>Journal of Nano Education</i>, 2014, 117–23. <a href=\"https://doi.org/10.1166/jne.2014.1044\">https://doi.org/10.1166/jne.2014.1044</a>.","ama":"Wilke T, Haffer S, Weinberger C, Tiemann M, Wagner T, Waitz T. Nanoporous Materials: Synthesis Concepts and Model Experiments for School Chemistry Education. <i>Journal of Nano Education</i>. Published online 2014:117-123. doi:<a href=\"https://doi.org/10.1166/jne.2014.1044\">10.1166/jne.2014.1044</a>","mla":"Wilke, Timm, et al. “Nanoporous Materials: Synthesis Concepts and Model Experiments for School Chemistry Education.” <i>Journal of Nano Education</i>, 2014, pp. 117–23, doi:<a href=\"https://doi.org/10.1166/jne.2014.1044\">10.1166/jne.2014.1044</a>.","bibtex":"@article{Wilke_Haffer_Weinberger_Tiemann_Wagner_Waitz_2014, title={Nanoporous Materials: Synthesis Concepts and Model Experiments for School Chemistry Education}, DOI={<a href=\"https://doi.org/10.1166/jne.2014.1044\">10.1166/jne.2014.1044</a>}, journal={Journal of Nano Education}, author={Wilke, Timm and Haffer, Stefanie and Weinberger, Christian and Tiemann, Michael and Wagner, Thorsten and Waitz, Thomas}, year={2014}, pages={117–123} }","short":"T. Wilke, S. Haffer, C. Weinberger, M. Tiemann, T. Wagner, T. Waitz, Journal of Nano Education (2014) 117–123.","apa":"Wilke, T., Haffer, S., Weinberger, C., Tiemann, M., Wagner, T., &#38; Waitz, T. (2014). Nanoporous Materials: Synthesis Concepts and Model Experiments for School Chemistry Education. <i>Journal of Nano Education</i>, 117–123. <a href=\"https://doi.org/10.1166/jne.2014.1044\">https://doi.org/10.1166/jne.2014.1044</a>"},"year":"2014"},{"article_type":"original","language":[{"iso":"eng"}],"_id":"25947","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"user_id":"23547","abstract":[{"text":"Ordered mesoporous carbon with a high heteroatom (N, O) content was prepared by nanocasting from a melt of a eutectic mixture of fructose and urea (60/40 wt.-%; melting temperature ca. 65 °C). These precursor compounds are cheap and environmentally friendly. The material possesses enhanced pore-wall surface polarity as compared to that of mesoporous carbon prepared by the same technique without urea. This was verified by water sorption analysis. As a result, the heteroatom-modified material shows higher sorption capacity for the uptake of heavy metal ions (Cu2+) from aqueous solution, which may be interesting for potential application in wastewater cleaning.","lang":"eng"}],"status":"public","publication":"European Journal of Inorganic Chemistry","type":"journal_article","title":"Fructose and Urea as Precursors for N-/O-Modified Mesoporous Carbon with Enhanced Sorption Capacity for Heavy Metal Ions","doi":"10.1002/ejic.201402027","date_updated":"2023-03-08T10:30:23Z","author":[{"last_name":"Weinberger","full_name":"Weinberger, Christian","id":"11848","first_name":"Christian"},{"first_name":"Stefanie","last_name":"Haffer","full_name":"Haffer, Stefanie"},{"first_name":"Thorsten","full_name":"Wagner, Thorsten","last_name":"Wagner"},{"first_name":"Michael","last_name":"Tiemann","orcid":"0000-0003-1711-2722","id":"23547","full_name":"Tiemann, Michael"}],"date_created":"2021-10-08T15:56:02Z","year":"2014","page":"2787-2792","citation":{"chicago":"Weinberger, Christian, Stefanie Haffer, Thorsten Wagner, and Michael Tiemann. “Fructose and Urea as Precursors for N-/O-Modified Mesoporous Carbon with Enhanced Sorption Capacity for Heavy Metal Ions.” <i>European Journal of Inorganic Chemistry</i>, 2014, 2787–92. <a href=\"https://doi.org/10.1002/ejic.201402027\">https://doi.org/10.1002/ejic.201402027</a>.","ieee":"C. Weinberger, S. Haffer, T. Wagner, and M. Tiemann, “Fructose and Urea as Precursors for N-/O-Modified Mesoporous Carbon with Enhanced Sorption Capacity for Heavy Metal Ions,” <i>European Journal of Inorganic Chemistry</i>, pp. 2787–2792, 2014, doi: <a href=\"https://doi.org/10.1002/ejic.201402027\">10.1002/ejic.201402027</a>.","ama":"Weinberger C, Haffer S, Wagner T, Tiemann M. Fructose and Urea as Precursors for N-/O-Modified Mesoporous Carbon with Enhanced Sorption Capacity for Heavy Metal Ions. <i>European Journal of Inorganic Chemistry</i>. Published online 2014:2787-2792. doi:<a href=\"https://doi.org/10.1002/ejic.201402027\">10.1002/ejic.201402027</a>","bibtex":"@article{Weinberger_Haffer_Wagner_Tiemann_2014, title={Fructose and Urea as Precursors for N-/O-Modified Mesoporous Carbon with Enhanced Sorption Capacity for Heavy Metal Ions}, DOI={<a href=\"https://doi.org/10.1002/ejic.201402027\">10.1002/ejic.201402027</a>}, journal={European Journal of Inorganic Chemistry}, author={Weinberger, Christian and Haffer, Stefanie and Wagner, Thorsten and Tiemann, Michael}, year={2014}, pages={2787–2792} }","short":"C. Weinberger, S. Haffer, T. Wagner, M. Tiemann, European Journal of Inorganic Chemistry (2014) 2787–2792.","mla":"Weinberger, Christian, et al. “Fructose and Urea as Precursors for N-/O-Modified Mesoporous Carbon with Enhanced Sorption Capacity for Heavy Metal Ions.” <i>European Journal of Inorganic Chemistry</i>, 2014, pp. 2787–92, doi:<a href=\"https://doi.org/10.1002/ejic.201402027\">10.1002/ejic.201402027</a>.","apa":"Weinberger, C., Haffer, S., Wagner, T., &#38; Tiemann, M. (2014). Fructose and Urea as Precursors for N-/O-Modified Mesoporous Carbon with Enhanced Sorption Capacity for Heavy Metal Ions. <i>European Journal of Inorganic Chemistry</i>, 2787–2792. <a href=\"https://doi.org/10.1002/ejic.201402027\">https://doi.org/10.1002/ejic.201402027</a>"},"quality_controlled":"1","publication_identifier":{"issn":["1434-1948"]},"publication_status":"published"},{"user_id":"23547","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"_id":"25954","language":[{"iso":"eng"}],"article_type":"original","type":"journal_article","publication":"Sensors and Actuators B: Chemical","status":"public","abstract":[{"text":"The light-enhanced NO2 sensing behavior of mesoporous In2O3 is measured and interpreted by means of a new sensing model. The model aims at explaining (i) the drop in electronic resistance of n-type semiconducting In2O3 under UV light exposure, (ii) the light-enhanced reaction to oxidizing gases, and (iii) the faster reaction and regeneration in mesoporous In2O3 as compared to non-porous material. Contrary to the conventional double Schottky model the dominating factor for the change in resistance is a change of oxygen vacancy donor states (0.18 eV below the conduction band) in the bulk phase due to photoreduction, instead of chemisorption. For the faster reaction and regeneration we propose an explanation based on enhanced oxygen diffusion in the In2O3 crystal lattice, specifically dominant in the mesoporous structure. The response of ordered mesoporous In2O3 to NO2 is stronger than in case of unstructured bulk material (with an average grain size of ca. 40 nm). The reaction is significantly accelerated by illuminating the samples with UV light. However, the response of the mesoporous material is weaker in the illuminated case.","lang":"eng"}],"date_created":"2021-10-09T04:43:40Z","author":[{"first_name":"Thorsten","last_name":"Wagner","full_name":"Wagner, Thorsten"},{"first_name":"Claus-Dieter","last_name":"Kohl","full_name":"Kohl, Claus-Dieter"},{"first_name":"Cesare","last_name":"Malagù","full_name":"Malagù, Cesare"},{"first_name":"Nicola","last_name":"Donato","full_name":"Donato, Nicola"},{"first_name":"Mariangela","last_name":"Latino","full_name":"Latino, Mariangela"},{"first_name":"Giovanni","last_name":"Neri","full_name":"Neri, Giovanni"},{"id":"23547","full_name":"Tiemann, Michael","orcid":"0000-0003-1711-2722","last_name":"Tiemann","first_name":"Michael"}],"date_updated":"2023-03-08T10:34:05Z","doi":"10.1016/j.snb.2013.02.025","title":"UV light-enhanced NO2 sensing by mesoporous In2O3: Interpretation of results by a new sensing model","publication_status":"published","quality_controlled":"1","publication_identifier":{"issn":["0925-4005"]},"citation":{"apa":"Wagner, T., Kohl, C.-D., Malagù, C., Donato, N., Latino, M., Neri, G., &#38; Tiemann, M. (2013). UV light-enhanced NO2 sensing by mesoporous In2O3: Interpretation of results by a new sensing model. <i>Sensors and Actuators B: Chemical</i>, 488–494. <a href=\"https://doi.org/10.1016/j.snb.2013.02.025\">https://doi.org/10.1016/j.snb.2013.02.025</a>","short":"T. Wagner, C.-D. Kohl, C. Malagù, N. Donato, M. Latino, G. Neri, M. Tiemann, Sensors and Actuators B: Chemical (2013) 488–494.","bibtex":"@article{Wagner_Kohl_Malagù_Donato_Latino_Neri_Tiemann_2013, title={UV light-enhanced NO2 sensing by mesoporous In2O3: Interpretation of results by a new sensing model}, DOI={<a href=\"https://doi.org/10.1016/j.snb.2013.02.025\">10.1016/j.snb.2013.02.025</a>}, journal={Sensors and Actuators B: Chemical}, author={Wagner, Thorsten and Kohl, Claus-Dieter and Malagù, Cesare and Donato, Nicola and Latino, Mariangela and Neri, Giovanni and Tiemann, Michael}, year={2013}, pages={488–494} }","mla":"Wagner, Thorsten, et al. “UV Light-Enhanced NO2 Sensing by Mesoporous In2O3: Interpretation of Results by a New Sensing Model.” <i>Sensors and Actuators B: Chemical</i>, 2013, pp. 488–94, doi:<a href=\"https://doi.org/10.1016/j.snb.2013.02.025\">10.1016/j.snb.2013.02.025</a>.","ieee":"T. Wagner <i>et al.</i>, “UV light-enhanced NO2 sensing by mesoporous In2O3: Interpretation of results by a new sensing model,” <i>Sensors and Actuators B: Chemical</i>, pp. 488–494, 2013, doi: <a href=\"https://doi.org/10.1016/j.snb.2013.02.025\">10.1016/j.snb.2013.02.025</a>.","chicago":"Wagner, Thorsten, Claus-Dieter Kohl, Cesare Malagù, Nicola Donato, Mariangela Latino, Giovanni Neri, and Michael Tiemann. “UV Light-Enhanced NO2 Sensing by Mesoporous In2O3: Interpretation of Results by a New Sensing Model.” <i>Sensors and Actuators B: Chemical</i>, 2013, 488–94. <a href=\"https://doi.org/10.1016/j.snb.2013.02.025\">https://doi.org/10.1016/j.snb.2013.02.025</a>.","ama":"Wagner T, Kohl C-D, Malagù C, et al. UV light-enhanced NO2 sensing by mesoporous In2O3: Interpretation of results by a new sensing model. <i>Sensors and Actuators B: Chemical</i>. Published online 2013:488-494. doi:<a href=\"https://doi.org/10.1016/j.snb.2013.02.025\">10.1016/j.snb.2013.02.025</a>"},"page":"488-494","year":"2013"},{"date_updated":"2023-03-08T10:34:31Z","date_created":"2021-10-09T04:42:49Z","author":[{"first_name":"Stefanie","full_name":"Haffer, Stefanie","last_name":"Haffer"},{"last_name":"Walther","full_name":"Walther, Till","first_name":"Till"},{"last_name":"Köferstein","full_name":"Köferstein, Roberto","first_name":"Roberto"},{"full_name":"Ebbinghaus, Stefan G.","last_name":"Ebbinghaus","first_name":"Stefan G."},{"first_name":"Michael","last_name":"Tiemann","orcid":"0000-0003-1711-2722","id":"23547","full_name":"Tiemann, Michael"}],"title":"Nanostructure-Related Magnetic Properties of Various Mesoporous Cobalt Oxide and Cobalt Ferrite Spinel Phases","doi":"10.1021/jp409058t","publication_identifier":{"issn":["1932-7447","1932-7455"]},"quality_controlled":"1","publication_status":"published","year":"2013","page":"24471-24478","citation":{"ama":"Haffer S, Walther T, Köferstein R, Ebbinghaus SG, Tiemann M. Nanostructure-Related Magnetic Properties of Various Mesoporous Cobalt Oxide and Cobalt Ferrite Spinel Phases. <i>The Journal of Physical Chemistry C</i>. Published online 2013:24471-24478. doi:<a href=\"https://doi.org/10.1021/jp409058t\">10.1021/jp409058t</a>","ieee":"S. Haffer, T. Walther, R. Köferstein, S. G. Ebbinghaus, and M. Tiemann, “Nanostructure-Related Magnetic Properties of Various Mesoporous Cobalt Oxide and Cobalt Ferrite Spinel Phases,” <i>The Journal of Physical Chemistry C</i>, pp. 24471–24478, 2013, doi: <a href=\"https://doi.org/10.1021/jp409058t\">10.1021/jp409058t</a>.","chicago":"Haffer, Stefanie, Till Walther, Roberto Köferstein, Stefan G. Ebbinghaus, and Michael Tiemann. “Nanostructure-Related Magnetic Properties of Various Mesoporous Cobalt Oxide and Cobalt Ferrite Spinel Phases.” <i>The Journal of Physical Chemistry C</i>, 2013, 24471–78. <a href=\"https://doi.org/10.1021/jp409058t\">https://doi.org/10.1021/jp409058t</a>.","short":"S. Haffer, T. Walther, R. Köferstein, S.G. Ebbinghaus, M. Tiemann, The Journal of Physical Chemistry C (2013) 24471–24478.","bibtex":"@article{Haffer_Walther_Köferstein_Ebbinghaus_Tiemann_2013, title={Nanostructure-Related Magnetic Properties of Various Mesoporous Cobalt Oxide and Cobalt Ferrite Spinel Phases}, DOI={<a href=\"https://doi.org/10.1021/jp409058t\">10.1021/jp409058t</a>}, journal={The Journal of Physical Chemistry C}, author={Haffer, Stefanie and Walther, Till and Köferstein, Roberto and Ebbinghaus, Stefan G. and Tiemann, Michael}, year={2013}, pages={24471–24478} }","mla":"Haffer, Stefanie, et al. “Nanostructure-Related Magnetic Properties of Various Mesoporous Cobalt Oxide and Cobalt Ferrite Spinel Phases.” <i>The Journal of Physical Chemistry C</i>, 2013, pp. 24471–78, doi:<a href=\"https://doi.org/10.1021/jp409058t\">10.1021/jp409058t</a>.","apa":"Haffer, S., Walther, T., Köferstein, R., Ebbinghaus, S. G., &#38; Tiemann, M. (2013). Nanostructure-Related Magnetic Properties of Various Mesoporous Cobalt Oxide and Cobalt Ferrite Spinel Phases. <i>The Journal of Physical Chemistry C</i>, 24471–24478. <a href=\"https://doi.org/10.1021/jp409058t\">https://doi.org/10.1021/jp409058t</a>"},"_id":"25953","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"user_id":"23547","article_type":"original","language":[{"iso":"eng"}],"publication":"The Journal of Physical Chemistry C","type":"journal_article","abstract":[{"text":"Nanostructure-related magnetic properties are investigated systematically for various mesoporous cobalt oxide (Co3O4) and cobalt ferrite (CoFe2O4) spinel phases. Synthesis of the materials by nanocasting offers the opportunity to obtain materials which are different from each other with respect to both specific surface area and crystallite size. As a result, the respective contributions of two types of interfaces, namely, “solid–gas” and “solid–solid” interfaces, to the magnetic ordering can be distinguished. Structural characterization of the porous materials by X-ray diffraction, N2 physisorption, and electron microscopy as well as investigation of the magnetic behavior (field-dependent magnetization and temperature-dependent susceptibility) are presented.","lang":"eng"}],"status":"public"},{"date_updated":"2023-03-08T10:34:56Z","author":[{"first_name":"Thorsten","full_name":"Wagner, Thorsten","last_name":"Wagner"},{"first_name":"Stefanie","last_name":"Haffer","full_name":"Haffer, Stefanie"},{"first_name":"Christian","last_name":"Weinberger","full_name":"Weinberger, Christian","id":"11848"},{"first_name":"Dominik","full_name":"Klaus, Dominik","last_name":"Klaus"},{"first_name":"Michael","full_name":"Tiemann, Michael","id":"23547","last_name":"Tiemann","orcid":"0000-0003-1711-2722"}],"date_created":"2021-10-09T04:41:29Z","title":"Mesoporous materials as gas sensors","doi":"10.1039/c2cs35379b","publication_identifier":{"issn":["0306-0012","1460-4744"]},"quality_controlled":"1","publication_status":"published","year":"2013","page":"4036-4053","citation":{"apa":"Wagner, T., Haffer, S., Weinberger, C., Klaus, D., &#38; Tiemann, M. (2013). Mesoporous materials as gas sensors. <i>Chem. Soc. Rev.</i>, 4036–4053. <a href=\"https://doi.org/10.1039/c2cs35379b\">https://doi.org/10.1039/c2cs35379b</a>","bibtex":"@article{Wagner_Haffer_Weinberger_Klaus_Tiemann_2013, title={Mesoporous materials as gas sensors}, DOI={<a href=\"https://doi.org/10.1039/c2cs35379b\">10.1039/c2cs35379b</a>}, journal={Chem. Soc. Rev.}, author={Wagner, Thorsten and Haffer, Stefanie and Weinberger, Christian and Klaus, Dominik and Tiemann, Michael}, year={2013}, pages={4036–4053} }","mla":"Wagner, Thorsten, et al. “Mesoporous Materials as Gas Sensors.” <i>Chem. Soc. Rev.</i>, 2013, pp. 4036–53, doi:<a href=\"https://doi.org/10.1039/c2cs35379b\">10.1039/c2cs35379b</a>.","short":"T. Wagner, S. Haffer, C. Weinberger, D. Klaus, M. Tiemann, Chem. Soc. Rev. (2013) 4036–4053.","chicago":"Wagner, Thorsten, Stefanie Haffer, Christian Weinberger, Dominik Klaus, and Michael Tiemann. “Mesoporous Materials as Gas Sensors.” <i>Chem. Soc. Rev.</i>, 2013, 4036–53. <a href=\"https://doi.org/10.1039/c2cs35379b\">https://doi.org/10.1039/c2cs35379b</a>.","ieee":"T. Wagner, S. Haffer, C. Weinberger, D. Klaus, and M. Tiemann, “Mesoporous materials as gas sensors,” <i>Chem. Soc. Rev.</i>, pp. 4036–4053, 2013, doi: <a href=\"https://doi.org/10.1039/c2cs35379b\">10.1039/c2cs35379b</a>.","ama":"Wagner T, Haffer S, Weinberger C, Klaus D, Tiemann M. Mesoporous materials as gas sensors. <i>Chem Soc Rev</i>. Published online 2013:4036-4053. doi:<a href=\"https://doi.org/10.1039/c2cs35379b\">10.1039/c2cs35379b</a>"},"_id":"25952","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"user_id":"23547","article_type":"review","language":[{"iso":"eng"}],"publication":"Chem. Soc. Rev.","type":"journal_article","abstract":[{"lang":"eng","text":"Ordered mesoporous materials have great potential in the field of gas sensing. Today various template-assisted synthesis methods facilitate the preparation of silica (SiO2) as well as numerous metal oxides with well-defined, uniform and regular pore systems. The unique nanostructural properties of such materials are particularly useful for their application as active layers in gas sensors based on various operating principles, such as capacitive, resistive, or optical sensing. This review summarizes the basic aspects of materials synthesis, discusses some structural properties relevant in gas sensing, and gives an overview of the literature on ordered mesoporous gas sensors."}],"status":"public"},{"doi":"10.5162/imcs2012/p1.3.17","title":"Mechanistic Model for UV light-enhanced NO2 Sensing utilizing Ordered Mesoporous In2O3","author":[{"full_name":"Wagner, Thorsten","last_name":"Wagner","first_name":"Thorsten"},{"last_name":"Tiemann","orcid":"0000-0003-1711-2722","full_name":"Tiemann, Michael","id":"23547","first_name":"Michael"},{"last_name":"Kohl","full_name":"Kohl, Claus-Dieter","first_name":"Claus-Dieter"},{"first_name":"Sara","last_name":"Morandi","full_name":"Morandi, Sara"},{"first_name":"Cesare","full_name":"Malagù, Cesare","last_name":"Malagù"},{"first_name":"Nicola","full_name":"Donato, Nicola","last_name":"Donato"},{"full_name":"Latino, Mariangela","last_name":"Latino","first_name":"Mariangela"},{"first_name":"Giovanni","last_name":"Neri","full_name":"Neri, Giovanni"}],"date_created":"2024-07-03T07:40:35Z","publisher":"AMA Service GmbH, Von-Münchhausen-Str. 49, 31515 Wunstorf, Germany","date_updated":"2024-07-03T07:42:49Z","citation":{"chicago":"Wagner, Thorsten, Michael Tiemann, Claus-Dieter Kohl, Sara Morandi, Cesare Malagù, Nicola Donato, Mariangela Latino, and Giovanni Neri. “Mechanistic Model for UV Light-Enhanced NO2 Sensing Utilizing Ordered Mesoporous In2O3.” In <i>Proceedings IMCS 2012</i>. AMA Service GmbH, Von-Münchhausen-Str. 49, 31515 Wunstorf, Germany, 2012. <a href=\"https://doi.org/10.5162/imcs2012/p1.3.17\">https://doi.org/10.5162/imcs2012/p1.3.17</a>.","ieee":"T. Wagner <i>et al.</i>, “Mechanistic Model for UV light-enhanced NO2 Sensing utilizing Ordered Mesoporous In2O3,” 2012, doi: <a href=\"https://doi.org/10.5162/imcs2012/p1.3.17\">10.5162/imcs2012/p1.3.17</a>.","ama":"Wagner T, Tiemann M, Kohl C-D, et al. Mechanistic Model for UV light-enhanced NO2 Sensing utilizing Ordered Mesoporous In2O3. In: <i>Proceedings IMCS 2012</i>. AMA Service GmbH, Von-Münchhausen-Str. 49, 31515 Wunstorf, Germany; 2012. doi:<a href=\"https://doi.org/10.5162/imcs2012/p1.3.17\">10.5162/imcs2012/p1.3.17</a>","apa":"Wagner, T., Tiemann, M., Kohl, C.-D., Morandi, S., Malagù, C., Donato, N., Latino, M., &#38; Neri, G. (2012). Mechanistic Model for UV light-enhanced NO2 Sensing utilizing Ordered Mesoporous In2O3. <i>Proceedings IMCS 2012</i>. <a href=\"https://doi.org/10.5162/imcs2012/p1.3.17\">https://doi.org/10.5162/imcs2012/p1.3.17</a>","bibtex":"@inproceedings{Wagner_Tiemann_Kohl_Morandi_Malagù_Donato_Latino_Neri_2012, title={Mechanistic Model for UV light-enhanced NO2 Sensing utilizing Ordered Mesoporous In2O3}, DOI={<a href=\"https://doi.org/10.5162/imcs2012/p1.3.17\">10.5162/imcs2012/p1.3.17</a>}, booktitle={Proceedings IMCS 2012}, publisher={AMA Service GmbH, Von-Münchhausen-Str. 49, 31515 Wunstorf, Germany}, author={Wagner, Thorsten and Tiemann, Michael and Kohl, Claus-Dieter and Morandi, Sara and Malagù, Cesare and Donato, Nicola and Latino, Mariangela and Neri, Giovanni}, year={2012} }","short":"T. Wagner, M. Tiemann, C.-D. Kohl, S. Morandi, C. Malagù, N. Donato, M. Latino, G. Neri, in: Proceedings IMCS 2012, AMA Service GmbH, Von-Münchhausen-Str. 49, 31515 Wunstorf, Germany, 2012.","mla":"Wagner, Thorsten, et al. “Mechanistic Model for UV Light-Enhanced NO2 Sensing Utilizing Ordered Mesoporous In2O3.” <i>Proceedings IMCS 2012</i>, AMA Service GmbH, Von-Münchhausen-Str. 49, 31515 Wunstorf, Germany, 2012, doi:<a href=\"https://doi.org/10.5162/imcs2012/p1.3.17\">10.5162/imcs2012/p1.3.17</a>."},"year":"2012","publication_status":"published","language":[{"iso":"eng"}],"department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"user_id":"23547","_id":"54994","status":"public","publication":"Proceedings IMCS 2012","type":"conference"},{"language":[{"iso":"eng"}],"user_id":"23547","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"_id":"54995","status":"public","type":"conference","publication":"Proceedings IMCS 2012","doi":"10.5162/imcs2012/p2.0.3","title":"Nanostructured Metal Oxides for High-Temperature Gas Sensing: Structural Stabilization in Porous Metal Oxides","date_created":"2024-07-03T07:45:51Z","author":[{"full_name":"Klaus, Dominik","last_name":"Klaus","first_name":"Dominik"},{"first_name":"Michael","orcid":"0000-0003-1711-2722","last_name":"Tiemann","full_name":"Tiemann, Michael","id":"23547"},{"last_name":"Wagner","full_name":"Wagner, Thorsten","first_name":"Thorsten"}],"publisher":"AMA Service GmbH, Von-Münchhausen-Str. 49, 31515 Wunstorf, Germany","date_updated":"2024-07-03T07:46:55Z","citation":{"short":"D. Klaus, M. Tiemann, T. Wagner, in: Proceedings IMCS 2012, AMA Service GmbH, Von-Münchhausen-Str. 49, 31515 Wunstorf, Germany, 2012.","bibtex":"@inproceedings{Klaus_Tiemann_Wagner_2012, title={Nanostructured Metal Oxides for High-Temperature Gas Sensing: Structural Stabilization in Porous Metal Oxides}, DOI={<a href=\"https://doi.org/10.5162/imcs2012/p2.0.3\">10.5162/imcs2012/p2.0.3</a>}, booktitle={Proceedings IMCS 2012}, publisher={AMA Service GmbH, Von-Münchhausen-Str. 49, 31515 Wunstorf, Germany}, author={Klaus, Dominik and Tiemann, Michael and Wagner, Thorsten}, year={2012} }","mla":"Klaus, Dominik, et al. “Nanostructured Metal Oxides for High-Temperature Gas Sensing: Structural Stabilization in Porous Metal Oxides.” <i>Proceedings IMCS 2012</i>, AMA Service GmbH, Von-Münchhausen-Str. 49, 31515 Wunstorf, Germany, 2012, doi:<a href=\"https://doi.org/10.5162/imcs2012/p2.0.3\">10.5162/imcs2012/p2.0.3</a>.","apa":"Klaus, D., Tiemann, M., &#38; Wagner, T. (2012). Nanostructured Metal Oxides for High-Temperature Gas Sensing: Structural Stabilization in Porous Metal Oxides. <i>Proceedings IMCS 2012</i>. <a href=\"https://doi.org/10.5162/imcs2012/p2.0.3\">https://doi.org/10.5162/imcs2012/p2.0.3</a>","ieee":"D. Klaus, M. Tiemann, and T. Wagner, “Nanostructured Metal Oxides for High-Temperature Gas Sensing: Structural Stabilization in Porous Metal Oxides,” 2012, doi: <a href=\"https://doi.org/10.5162/imcs2012/p2.0.3\">10.5162/imcs2012/p2.0.3</a>.","chicago":"Klaus, Dominik, Michael Tiemann, and Thorsten Wagner. “Nanostructured Metal Oxides for High-Temperature Gas Sensing: Structural Stabilization in Porous Metal Oxides.” In <i>Proceedings IMCS 2012</i>. AMA Service GmbH, Von-Münchhausen-Str. 49, 31515 Wunstorf, Germany, 2012. <a href=\"https://doi.org/10.5162/imcs2012/p2.0.3\">https://doi.org/10.5162/imcs2012/p2.0.3</a>.","ama":"Klaus D, Tiemann M, Wagner T. Nanostructured Metal Oxides for High-Temperature Gas Sensing: Structural Stabilization in Porous Metal Oxides. In: <i>Proceedings IMCS 2012</i>. AMA Service GmbH, Von-Münchhausen-Str. 49, 31515 Wunstorf, Germany; 2012. doi:<a href=\"https://doi.org/10.5162/imcs2012/p2.0.3\">10.5162/imcs2012/p2.0.3</a>"},"year":"2012","publication_status":"published"}]