---
_id: '62814'
abstract:
- lang: eng
  text: Porous carbons are prominent electrode materials in energy storage applications
    such as supercapacitors. However, rational materials development is hampered by
    difficulties in interpreting electrochemical impedance spectra (EIS) and drawing
    conclusions about promising aspects of device improvement. Here, we characterized
    electrodes consisting of activated carbon with polyacrylic acid binder in four
    different concentrations of sulfuric acid, using cyclic voltammetry and electrochemical
    impedance spectroscopy. Both datasets were evaluated with simple equivalent circuits
    and comparatively analyzed. Conductivity of the electrolyte was independently
    measured. Cyclic voltammograms (CV) show larger resistance and capacitance at
    low scan rates. Resistances obtained from EIS are in good agreement with those
    obtained by cyclic voltammograms particularly at high scan rates. The comparison
    against specific electrolyte resistance can reveal whether resistances within
    the solid electrode architecture or resistances within the electrolyte, partially
    confined by pores, are the dominant cause of increased resistance at low scan
    rate. Comparison between CV and EIS points to the main electrode capacitance being
    described by a constant phase element (CPE) used to fit the low-frequency region
    of EIS.
author:
- first_name: Sebastian
  full_name: Reinke, Sebastian
  id: '117727'
  last_name: Reinke
- first_name: Vera
  full_name: Khamitsevich, Vera
  last_name: Khamitsevich
- first_name: Julia
  full_name: Linnemann, Julia
  id: '116779'
  last_name: Linnemann
  orcid: 0000-0001-6883-5424
citation:
  ama: 'Reinke S, Khamitsevich V, Linnemann J. Complementary Analysis of Cyclic Voltammograms
    and Impedance Spectra of Porous Carbon Electrodes. In: <i>2024 International Workshop
    on Impedance Spectroscopy (IWIS)</i>. IEEE; 2025. doi:<a href="https://doi.org/10.1109/iwis63047.2024.10847115">10.1109/iwis63047.2024.10847115</a>'
  apa: Reinke, S., Khamitsevich, V., &#38; Linnemann, J. (2025). Complementary Analysis
    of Cyclic Voltammograms and Impedance Spectra of Porous Carbon Electrodes. <i>2024
    International Workshop on Impedance Spectroscopy (IWIS)</i>. <a href="https://doi.org/10.1109/iwis63047.2024.10847115">https://doi.org/10.1109/iwis63047.2024.10847115</a>
  bibtex: '@inproceedings{Reinke_Khamitsevich_Linnemann_2025, title={Complementary
    Analysis of Cyclic Voltammograms and Impedance Spectra of Porous Carbon Electrodes},
    DOI={<a href="https://doi.org/10.1109/iwis63047.2024.10847115">10.1109/iwis63047.2024.10847115</a>},
    booktitle={2024 International Workshop on Impedance Spectroscopy (IWIS)}, publisher={IEEE},
    author={Reinke, Sebastian and Khamitsevich, Vera and Linnemann, Julia}, year={2025}
    }'
  chicago: Reinke, Sebastian, Vera Khamitsevich, and Julia Linnemann. “Complementary
    Analysis of Cyclic Voltammograms and Impedance Spectra of Porous Carbon Electrodes.”
    In <i>2024 International Workshop on Impedance Spectroscopy (IWIS)</i>. IEEE,
    2025. <a href="https://doi.org/10.1109/iwis63047.2024.10847115">https://doi.org/10.1109/iwis63047.2024.10847115</a>.
  ieee: 'S. Reinke, V. Khamitsevich, and J. Linnemann, “Complementary Analysis of
    Cyclic Voltammograms and Impedance Spectra of Porous Carbon Electrodes,” 2025,
    doi: <a href="https://doi.org/10.1109/iwis63047.2024.10847115">10.1109/iwis63047.2024.10847115</a>.'
  mla: Reinke, Sebastian, et al. “Complementary Analysis of Cyclic Voltammograms and
    Impedance Spectra of Porous Carbon Electrodes.” <i>2024 International Workshop
    on Impedance Spectroscopy (IWIS)</i>, IEEE, 2025, doi:<a href="https://doi.org/10.1109/iwis63047.2024.10847115">10.1109/iwis63047.2024.10847115</a>.
  short: 'S. Reinke, V. Khamitsevich, J. Linnemann, in: 2024 International Workshop
    on Impedance Spectroscopy (IWIS), IEEE, 2025.'
date_created: 2025-12-03T16:06:09Z
date_updated: 2026-01-19T15:41:43Z
department:
- _id: '985'
doi: 10.1109/iwis63047.2024.10847115
extern: '1'
keyword:
- electrochemical impedance spectroscopy
- distorted cyclic voltammograms
- supercapacitors
- carbon
language:
- iso: eng
publication: 2024 International Workshop on Impedance Spectroscopy (IWIS)
publication_status: published
publisher: IEEE
quality_controlled: '1'
status: public
title: Complementary Analysis of Cyclic Voltammograms and Impedance Spectra of Porous
  Carbon Electrodes
type: conference
user_id: '116779'
year: '2025'
...
---
_id: '50150'
abstract:
- lang: eng
  text: <jats:p>Covalent peptidomimetic protease inhibitors have gained a lot of attention
    in drug development in recent years. They are designed to covalently bind the
    catalytically active amino acids through electrophilic groups called warheads.
    Covalent inhibition has an advantage in terms of pharmacodynamic properties but
    can also bear toxicity risks due to non-selective off-target protein binding.
    Therefore, the right combination of a reactive warhead with a well-suited peptidomimetic
    sequence is of great importance. Herein, the selectivities of well-known warheads
    combined with peptidomimetic sequences suited for five different proteases were
    investigated, highlighting the impact of both structure parts (warhead and peptidomimetic
    sequence) for affinity and selectivity. Molecular docking gave insights into the
    predicted binding modes of the inhibitors inside the binding pockets of the different
    enzymes. Moreover, the warheads were investigated by NMR and LC-MS reactivity
    assays against serine/threonine and cysteine nucleophile models, as well as by
    quantum mechanics simulations.</jats:p>
article_number: '7226'
author:
- first_name: Patrick
  full_name: Müller, Patrick
  last_name: Müller
- first_name: Mergim
  full_name: Meta, Mergim
  last_name: Meta
- first_name: Jan Laurenz
  full_name: Meidner, Jan Laurenz
  last_name: Meidner
- first_name: Marvin
  full_name: Schwickert, Marvin
  last_name: Schwickert
- first_name: Jessica
  full_name: Meyr, Jessica
  last_name: Meyr
- first_name: Kevin
  full_name: Schwickert, Kevin
  last_name: Schwickert
- first_name: Christian
  full_name: Kersten, Christian
  last_name: Kersten
- first_name: Collin
  full_name: Zimmer, Collin
  last_name: Zimmer
- first_name: Stefan Josef
  full_name: Hammerschmidt, Stefan Josef
  last_name: Hammerschmidt
- first_name: Ariane
  full_name: Frey, Ariane
  last_name: Frey
- first_name: Albin
  full_name: Lahu, Albin
  last_name: Lahu
- first_name: Sergio
  full_name: de la Hoz-Rodríguez, Sergio
  last_name: de la Hoz-Rodríguez
- first_name: Laura
  full_name: Agost-Beltrán, Laura
  last_name: Agost-Beltrán
- first_name: Santiago
  full_name: Rodríguez, Santiago
  last_name: Rodríguez
- first_name: Kira
  full_name: Diemer, Kira
  last_name: Diemer
- first_name: Wilhelm
  full_name: Neumann, Wilhelm
  last_name: Neumann
- first_name: Florenci V.
  full_name: Gonzàlez, Florenci V.
  last_name: Gonzàlez
- first_name: Bernd
  full_name: Engels, Bernd
  last_name: Engels
- first_name: Tanja
  full_name: Schirmeister, Tanja
  last_name: Schirmeister
citation:
  ama: Müller P, Meta M, Meidner JL, et al. Investigation of the Compatibility between
    Warheads and Peptidomimetic Sequences of Protease Inhibitors—A Comprehensive Reactivity
    and Selectivity Study. <i>International Journal of Molecular Sciences</i>. 2023;24(8).
    doi:<a href="https://doi.org/10.3390/ijms24087226">10.3390/ijms24087226</a>
  apa: Müller, P., Meta, M., Meidner, J. L., Schwickert, M., Meyr, J., Schwickert,
    K., Kersten, C., Zimmer, C., Hammerschmidt, S. J., Frey, A., Lahu, A., de la Hoz-Rodríguez,
    S., Agost-Beltrán, L., Rodríguez, S., Diemer, K., Neumann, W., Gonzàlez, F. V.,
    Engels, B., &#38; Schirmeister, T. (2023). Investigation of the Compatibility
    between Warheads and Peptidomimetic Sequences of Protease Inhibitors—A Comprehensive
    Reactivity and Selectivity Study. <i>International Journal of Molecular Sciences</i>,
    <i>24</i>(8), Article 7226. <a href="https://doi.org/10.3390/ijms24087226">https://doi.org/10.3390/ijms24087226</a>
  bibtex: '@article{Müller_Meta_Meidner_Schwickert_Meyr_Schwickert_Kersten_Zimmer_Hammerschmidt_Frey_et
    al._2023, title={Investigation of the Compatibility between Warheads and Peptidomimetic
    Sequences of Protease Inhibitors—A Comprehensive Reactivity and Selectivity Study},
    volume={24}, DOI={<a href="https://doi.org/10.3390/ijms24087226">10.3390/ijms24087226</a>},
    number={87226}, journal={International Journal of Molecular Sciences}, publisher={MDPI
    AG}, author={Müller, Patrick and Meta, Mergim and Meidner, Jan Laurenz and Schwickert,
    Marvin and Meyr, Jessica and Schwickert, Kevin and Kersten, Christian and Zimmer,
    Collin and Hammerschmidt, Stefan Josef and Frey, Ariane and et al.}, year={2023}
    }'
  chicago: Müller, Patrick, Mergim Meta, Jan Laurenz Meidner, Marvin Schwickert, Jessica
    Meyr, Kevin Schwickert, Christian Kersten, et al. “Investigation of the Compatibility
    between Warheads and Peptidomimetic Sequences of Protease Inhibitors—A Comprehensive
    Reactivity and Selectivity Study.” <i>International Journal of Molecular Sciences</i>
    24, no. 8 (2023). <a href="https://doi.org/10.3390/ijms24087226">https://doi.org/10.3390/ijms24087226</a>.
  ieee: 'P. Müller <i>et al.</i>, “Investigation of the Compatibility between Warheads
    and Peptidomimetic Sequences of Protease Inhibitors—A Comprehensive Reactivity
    and Selectivity Study,” <i>International Journal of Molecular Sciences</i>, vol.
    24, no. 8, Art. no. 7226, 2023, doi: <a href="https://doi.org/10.3390/ijms24087226">10.3390/ijms24087226</a>.'
  mla: Müller, Patrick, et al. “Investigation of the Compatibility between Warheads
    and Peptidomimetic Sequences of Protease Inhibitors—A Comprehensive Reactivity
    and Selectivity Study.” <i>International Journal of Molecular Sciences</i>, vol.
    24, no. 8, 7226, MDPI AG, 2023, doi:<a href="https://doi.org/10.3390/ijms24087226">10.3390/ijms24087226</a>.
  short: P. Müller, M. Meta, J.L. Meidner, M. Schwickert, J. Meyr, K. Schwickert,
    C. Kersten, C. Zimmer, S.J. Hammerschmidt, A. Frey, A. Lahu, S. de la Hoz-Rodríguez,
    L. Agost-Beltrán, S. Rodríguez, K. Diemer, W. Neumann, F.V. Gonzàlez, B. Engels,
    T. Schirmeister, International Journal of Molecular Sciences 24 (2023).
date_created: 2024-01-04T08:24:31Z
date_updated: 2024-01-05T12:59:32Z
doi: 10.3390/ijms24087226
intvolume: '        24'
issue: '8'
keyword:
- Inorganic Chemistry
- Organic Chemistry
- Physical and Theoretical Chemistry
- Computer Science Applications
- Spectroscopy
- Molecular Biology
- General Medicine
- Catalysis
language:
- iso: eng
project:
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: International Journal of Molecular Sciences
publication_identifier:
  issn:
  - 1422-0067
publication_status: published
publisher: MDPI AG
status: public
title: Investigation of the Compatibility between Warheads and Peptidomimetic Sequences
  of Protease Inhibitors—A Comprehensive Reactivity and Selectivity Study
type: journal_article
user_id: '67287'
volume: 24
year: '2023'
...
---
_id: '46480'
article_number: '147317'
author:
- first_name: Hendrik
  full_name: Müller, Hendrik
  last_name: Müller
- first_name: Christian
  full_name: Weinberger, Christian
  id: '11848'
  last_name: Weinberger
- first_name: Guido
  full_name: Grundmeier, Guido
  id: '194'
  last_name: Grundmeier
- first_name: Maria Teresa
  full_name: de los Arcos de Pedro, Maria Teresa
  id: '54556'
  last_name: de los Arcos de Pedro
citation:
  ama: Müller H, Weinberger C, Grundmeier G, de los Arcos de Pedro MT. UV-enhanced
    environmental charge compensation in near ambient pressure XPS. <i>Journal of
    Electron Spectroscopy and Related Phenomena</i>. 2023;264. doi:<a href="https://doi.org/10.1016/j.elspec.2023.147317">10.1016/j.elspec.2023.147317</a>
  apa: Müller, H., Weinberger, C., Grundmeier, G., &#38; de los Arcos de Pedro, M.
    T. (2023). UV-enhanced environmental charge compensation in near ambient pressure
    XPS. <i>Journal of Electron Spectroscopy and Related Phenomena</i>, <i>264</i>,
    Article 147317. <a href="https://doi.org/10.1016/j.elspec.2023.147317">https://doi.org/10.1016/j.elspec.2023.147317</a>
  bibtex: '@article{Müller_Weinberger_Grundmeier_de los Arcos de Pedro_2023, title={UV-enhanced
    environmental charge compensation in near ambient pressure XPS}, volume={264},
    DOI={<a href="https://doi.org/10.1016/j.elspec.2023.147317">10.1016/j.elspec.2023.147317</a>},
    number={147317}, journal={Journal of Electron Spectroscopy and Related Phenomena},
    publisher={Elsevier BV}, author={Müller, Hendrik and Weinberger, Christian and
    Grundmeier, Guido and de los Arcos de Pedro, Maria Teresa}, year={2023} }'
  chicago: Müller, Hendrik, Christian Weinberger, Guido Grundmeier, and Maria Teresa
    de los Arcos de Pedro. “UV-Enhanced Environmental Charge Compensation in near
    Ambient Pressure XPS.” <i>Journal of Electron Spectroscopy and Related Phenomena</i>
    264 (2023). <a href="https://doi.org/10.1016/j.elspec.2023.147317">https://doi.org/10.1016/j.elspec.2023.147317</a>.
  ieee: 'H. Müller, C. Weinberger, G. Grundmeier, and M. T. de los Arcos de Pedro,
    “UV-enhanced environmental charge compensation in near ambient pressure XPS,”
    <i>Journal of Electron Spectroscopy and Related Phenomena</i>, vol. 264, Art.
    no. 147317, 2023, doi: <a href="https://doi.org/10.1016/j.elspec.2023.147317">10.1016/j.elspec.2023.147317</a>.'
  mla: Müller, Hendrik, et al. “UV-Enhanced Environmental Charge Compensation in near
    Ambient Pressure XPS.” <i>Journal of Electron Spectroscopy and Related Phenomena</i>,
    vol. 264, 147317, Elsevier BV, 2023, doi:<a href="https://doi.org/10.1016/j.elspec.2023.147317">10.1016/j.elspec.2023.147317</a>.
  short: H. Müller, C. Weinberger, G. Grundmeier, M.T. de los Arcos de Pedro, Journal
    of Electron Spectroscopy and Related Phenomena 264 (2023).
date_created: 2023-08-11T14:11:57Z
date_updated: 2023-08-11T14:13:19Z
department:
- _id: '302'
doi: 10.1016/j.elspec.2023.147317
intvolume: '       264'
keyword:
- Physical and Theoretical Chemistry
- Spectroscopy
- Condensed Matter Physics
- Atomic and Molecular Physics
- and Optics
- Radiation
- Electronic
- Optical and Magnetic Materials
language:
- iso: eng
publication: Journal of Electron Spectroscopy and Related Phenomena
publication_identifier:
  issn:
  - 0368-2048
publication_status: published
publisher: Elsevier BV
status: public
title: UV-enhanced environmental charge compensation in near ambient pressure XPS
type: journal_article
user_id: '54556'
volume: 264
year: '2023'
...
---
_id: '46543'
abstract:
- lang: eng
  text: <jats:p>The influence of nanoscale surface topography on protein adsorption
    is highly important for numerous applications in medicine and technology. Herein,
    ferritin adsorption at flat and nanofaceted, single-crystalline Al2O3 surfaces
    is investigated using atomic force microscopy and X-ray photoelectron spectroscopy.
    The nanofaceted surfaces are generated by the thermal annealing of Al2O3 wafers
    at temperatures above 1000 °C, which leads to the formation of faceted saw-tooth-like
    surface topographies with periodicities of about 160 nm and amplitudes of about
    15 nm. Ferritin adsorption at these nanofaceted surfaces is notably suppressed
    compared to the flat surface at a concentration of 10 mg/mL, which is attributed
    to lower adsorption affinities of the newly formed facets. Consequently, adsorption
    is restricted mostly to the pattern grooves, where the proteins can maximize their
    contact area with the surface. However, this effect depends on the protein concentration,
    with an inverse trend being observed at 30 mg/mL. Furthermore, different ferritin
    adsorption behavior is observed at topographically similar nanofacet patterns
    fabricated at different annealing temperatures and attributed to different step
    and kink densities. These results demonstrate that while protein adsorption at
    solid surfaces can be notably affected by nanofacet patterns, fine-tuning protein
    adsorption in this way requires the precise control of facet properties.</jats:p>
article_number: '12808'
author:
- first_name: Bhanu K.
  full_name: Pothineni, Bhanu K.
  last_name: Pothineni
- first_name: Sabrina
  full_name: Kollmann, Sabrina
  last_name: Kollmann
- first_name: Xinyang
  full_name: Li, Xinyang
  last_name: Li
- first_name: Guido
  full_name: Grundmeier, Guido
  id: '194'
  last_name: Grundmeier
- first_name: Denise J.
  full_name: Erb, Denise J.
  last_name: Erb
- first_name: Adrian
  full_name: Keller, Adrian
  id: '48864'
  last_name: Keller
  orcid: 0000-0001-7139-3110
citation:
  ama: Pothineni BK, Kollmann S, Li X, Grundmeier G, Erb DJ, Keller A. Adsorption
    of Ferritin at Nanofaceted Al2O3 Surfaces. <i>International Journal of Molecular
    Sciences</i>. 2023;24(16). doi:<a href="https://doi.org/10.3390/ijms241612808">10.3390/ijms241612808</a>
  apa: Pothineni, B. K., Kollmann, S., Li, X., Grundmeier, G., Erb, D. J., &#38; Keller,
    A. (2023). Adsorption of Ferritin at Nanofaceted Al2O3 Surfaces. <i>International
    Journal of Molecular Sciences</i>, <i>24</i>(16), Article 12808. <a href="https://doi.org/10.3390/ijms241612808">https://doi.org/10.3390/ijms241612808</a>
  bibtex: '@article{Pothineni_Kollmann_Li_Grundmeier_Erb_Keller_2023, title={Adsorption
    of Ferritin at Nanofaceted Al2O3 Surfaces}, volume={24}, DOI={<a href="https://doi.org/10.3390/ijms241612808">10.3390/ijms241612808</a>},
    number={1612808}, journal={International Journal of Molecular Sciences}, publisher={MDPI
    AG}, author={Pothineni, Bhanu K. and Kollmann, Sabrina and Li, Xinyang and Grundmeier,
    Guido and Erb, Denise J. and Keller, Adrian}, year={2023} }'
  chicago: Pothineni, Bhanu K., Sabrina Kollmann, Xinyang Li, Guido Grundmeier, Denise
    J. Erb, and Adrian Keller. “Adsorption of Ferritin at Nanofaceted Al2O3 Surfaces.”
    <i>International Journal of Molecular Sciences</i> 24, no. 16 (2023). <a href="https://doi.org/10.3390/ijms241612808">https://doi.org/10.3390/ijms241612808</a>.
  ieee: 'B. K. Pothineni, S. Kollmann, X. Li, G. Grundmeier, D. J. Erb, and A. Keller,
    “Adsorption of Ferritin at Nanofaceted Al2O3 Surfaces,” <i>International Journal
    of Molecular Sciences</i>, vol. 24, no. 16, Art. no. 12808, 2023, doi: <a href="https://doi.org/10.3390/ijms241612808">10.3390/ijms241612808</a>.'
  mla: Pothineni, Bhanu K., et al. “Adsorption of Ferritin at Nanofaceted Al2O3 Surfaces.”
    <i>International Journal of Molecular Sciences</i>, vol. 24, no. 16, 12808, MDPI
    AG, 2023, doi:<a href="https://doi.org/10.3390/ijms241612808">10.3390/ijms241612808</a>.
  short: B.K. Pothineni, S. Kollmann, X. Li, G. Grundmeier, D.J. Erb, A. Keller, International
    Journal of Molecular Sciences 24 (2023).
date_created: 2023-08-16T10:52:25Z
date_updated: 2023-08-16T10:53:00Z
department:
- _id: '302'
doi: 10.3390/ijms241612808
intvolume: '        24'
issue: '16'
keyword:
- Inorganic Chemistry
- Organic Chemistry
- Physical and Theoretical Chemistry
- Computer Science Applications
- Spectroscopy
- Molecular Biology
- General Medicine
- Catalysis
language:
- iso: eng
publication: International Journal of Molecular Sciences
publication_identifier:
  issn:
  - 1422-0067
publication_status: published
publisher: MDPI AG
status: public
title: Adsorption of Ferritin at Nanofaceted Al2O3 Surfaces
type: journal_article
user_id: '48864'
volume: 24
year: '2023'
...
---
_id: '62812'
abstract:
- lang: eng
  text: Attributing features of electrochemical impedance spectra to electrochemical
    phenomena is both crucial and frequently ambiguous. To elucidate the origin of
    the ohmic part of the spectrum, activated carbon electrodes were prepared with
    different contents of polyacrylic acid as binder. Their impedance spectra and
    cyclic voltammograms were recorded using sulfuric acid of five different concentrations
    as the electrolyte. To distinguish electrolyte resistance and resistances related
    to the activated carbon layer of the electrode, the specific electrolyte conductivity
    was independently measured and compared against the ohmic part of the electrochemical
    impedance spectra (EIS). The capacitive cyclic voltammograms show larger resistive
    contributions with higher scan rate and lower electrolyte conductivity. Comparing
    the ohmic part of the EIS to the specific resistance of the electrolyte, a linear
    function with no statistically significant offset was found. The ohmic part of
    the EIS, thus, reflects the electrolyte resistance, not that of the carbon electrode.
author:
- first_name: Sebastian
  full_name: Reinke, Sebastian
  id: '117727'
  last_name: Reinke
- first_name: Vera
  full_name: Khamitsevich, Vera
  last_name: Khamitsevich
- first_name: Oliver
  full_name: Röth, Oliver
  id: '117786'
  last_name: Röth
- first_name: Julia
  full_name: Linnemann, Julia
  id: '116779'
  last_name: Linnemann
  orcid: 0000-0001-6883-5424
citation:
  ama: 'Reinke S, Khamitsevich V, Röth O, Linnemann J. Assessment of the Physicochemical
    Meaning of the Ohmic Series Resistance Observed for High Frequencies in Electrochemical
    Impedance Spectra. In: <i>2023 International Workshop on Impedance Spectroscopy
    (IWIS)</i>. IEEE; 2023. doi:<a href="https://doi.org/10.1109/iwis61214.2023.10302764">10.1109/iwis61214.2023.10302764</a>'
  apa: Reinke, S., Khamitsevich, V., Röth, O., &#38; Linnemann, J. (2023). Assessment
    of the Physicochemical Meaning of the Ohmic Series Resistance Observed for High
    Frequencies in Electrochemical Impedance Spectra. <i>2023 International Workshop
    on Impedance Spectroscopy (IWIS)</i>. <a href="https://doi.org/10.1109/iwis61214.2023.10302764">https://doi.org/10.1109/iwis61214.2023.10302764</a>
  bibtex: '@inproceedings{Reinke_Khamitsevich_Röth_Linnemann_2023, title={Assessment
    of the Physicochemical Meaning of the Ohmic Series Resistance Observed for High
    Frequencies in Electrochemical Impedance Spectra}, DOI={<a href="https://doi.org/10.1109/iwis61214.2023.10302764">10.1109/iwis61214.2023.10302764</a>},
    booktitle={2023 International Workshop on Impedance Spectroscopy (IWIS)}, publisher={IEEE},
    author={Reinke, Sebastian and Khamitsevich, Vera and Röth, Oliver and Linnemann,
    Julia}, year={2023} }'
  chicago: Reinke, Sebastian, Vera Khamitsevich, Oliver Röth, and Julia Linnemann.
    “Assessment of the Physicochemical Meaning of the Ohmic Series Resistance Observed
    for High Frequencies in Electrochemical Impedance Spectra.” In <i>2023 International
    Workshop on Impedance Spectroscopy (IWIS)</i>. IEEE, 2023. <a href="https://doi.org/10.1109/iwis61214.2023.10302764">https://doi.org/10.1109/iwis61214.2023.10302764</a>.
  ieee: 'S. Reinke, V. Khamitsevich, O. Röth, and J. Linnemann, “Assessment of the
    Physicochemical Meaning of the Ohmic Series Resistance Observed for High Frequencies
    in Electrochemical Impedance Spectra,” 2023, doi: <a href="https://doi.org/10.1109/iwis61214.2023.10302764">10.1109/iwis61214.2023.10302764</a>.'
  mla: Reinke, Sebastian, et al. “Assessment of the Physicochemical Meaning of the
    Ohmic Series Resistance Observed for High Frequencies in Electrochemical Impedance
    Spectra.” <i>2023 International Workshop on Impedance Spectroscopy (IWIS)</i>,
    IEEE, 2023, doi:<a href="https://doi.org/10.1109/iwis61214.2023.10302764">10.1109/iwis61214.2023.10302764</a>.
  short: 'S. Reinke, V. Khamitsevich, O. Röth, J. Linnemann, in: 2023 International
    Workshop on Impedance Spectroscopy (IWIS), IEEE, 2023.'
date_created: 2025-12-03T15:58:28Z
date_updated: 2026-01-19T15:40:41Z
department:
- _id: '985'
doi: 10.1109/iwis61214.2023.10302764
extern: '1'
keyword:
- electrochemical impedance spectroscopy
- supercapacitors
- carbon
language:
- iso: eng
publication: 2023 International Workshop on Impedance Spectroscopy (IWIS)
publication_status: published
publisher: IEEE
quality_controlled: '1'
status: public
title: Assessment of the Physicochemical Meaning of the Ohmic Series Resistance Observed
  for High Frequencies in Electrochemical Impedance Spectra
type: conference
user_id: '116779'
year: '2023'
...
---
_id: '64044'
abstract:
- lang: eng
  text: Abstract Polymer-derived silicon oxycarbide ceramics (SiCO) have been considered
    as potential anode materials for lithium- and sodium-ion batteries. To understand
    their electrochemical storage behavior, detailed insights into structural sites
    present in SiCO are required. In this work, the study of local structures in SiCO
    ceramics containing different amounts of carbon is presented. 13C and 29Si solid-state
    MAS?NMR spectroscopy combined with DFT calculations, atomistic modeling, and EPR
    investigations, suggest significant changes in the local structures of SiCO ceramics
    even by small changes in the material composition. The provided findings on SiCO
    structures will contribute to the research field of polymer-derived ceramics,
    especially to understand electrochemical storage processes of alkali metal/ions
    such as Na/Na+ inside such networks in the future.
author:
- first_name: Edina
  full_name: Šić, Edina
  last_name: Šić
- first_name: Jochen
  full_name: Rohrer, Jochen
  last_name: Rohrer
- first_name: Emmanuel
  full_name: Ricohermoso, Emmanuel
  last_name: Ricohermoso
- first_name: Karsten
  full_name: Albe, Karsten
  last_name: Albe
- first_name: Emmanuel
  full_name: Ionescu, Emmanuel
  last_name: Ionescu
- first_name: Ralf
  full_name: Riedel, Ralf
  last_name: Riedel
- first_name: Hergen
  full_name: Breitzke, Hergen
  last_name: Breitzke
- first_name: Torsten
  full_name: Gutmann, Torsten
  id: '118165'
  last_name: Gutmann
- first_name: Gerd
  full_name: Buntkowsky, Gerd
  last_name: Buntkowsky
citation:
  ama: 'Šić E, Rohrer J, Ricohermoso E, et al. SiCO Ceramics as Storage Materials
    for Alkali Metals/Ions: Insights on Structure Moieties from Solid-State NMR and
    DFT Calculations. <i>Chemsuschem</i>. 2023;16:e202202241. doi:<a href="https://doi.org/10.1002/cssc.202202241">10.1002/cssc.202202241</a>'
  apa: 'Šić, E., Rohrer, J., Ricohermoso, E., Albe, K., Ionescu, E., Riedel, R., Breitzke,
    H., Gutmann, T., &#38; Buntkowsky, G. (2023). SiCO Ceramics as Storage Materials
    for Alkali Metals/Ions: Insights on Structure Moieties from Solid-State NMR and
    DFT Calculations. <i>Chemsuschem</i>, <i>16</i>, e202202241. <a href="https://doi.org/10.1002/cssc.202202241">https://doi.org/10.1002/cssc.202202241</a>'
  bibtex: '@article{Šić_Rohrer_Ricohermoso_Albe_Ionescu_Riedel_Breitzke_Gutmann_Buntkowsky_2023,
    title={SiCO Ceramics as Storage Materials for Alkali Metals/Ions: Insights on
    Structure Moieties from Solid-State NMR and DFT Calculations}, volume={16}, DOI={<a
    href="https://doi.org/10.1002/cssc.202202241">10.1002/cssc.202202241</a>}, journal={Chemsuschem},
    publisher={John Wiley &#38; Sons, Ltd}, author={Šić, Edina and Rohrer, Jochen
    and Ricohermoso, Emmanuel and Albe, Karsten and Ionescu, Emmanuel and Riedel,
    Ralf and Breitzke, Hergen and Gutmann, Torsten and Buntkowsky, Gerd}, year={2023},
    pages={e202202241} }'
  chicago: 'Šić, Edina, Jochen Rohrer, Emmanuel Ricohermoso, Karsten Albe, Emmanuel
    Ionescu, Ralf Riedel, Hergen Breitzke, Torsten Gutmann, and Gerd Buntkowsky. “SiCO
    Ceramics as Storage Materials for Alkali Metals/Ions: Insights on Structure Moieties
    from Solid-State NMR and DFT Calculations.” <i>Chemsuschem</i> 16 (2023): e202202241.
    <a href="https://doi.org/10.1002/cssc.202202241">https://doi.org/10.1002/cssc.202202241</a>.'
  ieee: 'E. Šić <i>et al.</i>, “SiCO Ceramics as Storage Materials for Alkali Metals/Ions:
    Insights on Structure Moieties from Solid-State NMR and DFT Calculations,” <i>Chemsuschem</i>,
    vol. 16, p. e202202241, 2023, doi: <a href="https://doi.org/10.1002/cssc.202202241">10.1002/cssc.202202241</a>.'
  mla: 'Šić, Edina, et al. “SiCO Ceramics as Storage Materials for Alkali Metals/Ions:
    Insights on Structure Moieties from Solid-State NMR and DFT Calculations.” <i>Chemsuschem</i>,
    vol. 16, John Wiley &#38; Sons, Ltd, 2023, p. e202202241, doi:<a href="https://doi.org/10.1002/cssc.202202241">10.1002/cssc.202202241</a>.'
  short: E. Šić, J. Rohrer, E. Ricohermoso, K. Albe, E. Ionescu, R. Riedel, H. Breitzke,
    T. Gutmann, G. Buntkowsky, Chemsuschem 16 (2023) e202202241.
date_created: 2026-02-07T16:11:46Z
date_updated: 2026-02-17T16:13:11Z
doi: 10.1002/cssc.202202241
extern: '1'
intvolume: '        16'
keyword:
- NMR spectroscopy
- Ceramics
- defects
- density functional calculations
- EPR spectroscopy
language:
- iso: eng
page: e202202241
publication: Chemsuschem
publication_identifier:
  issn:
  - 1864-5631
publisher: John Wiley & Sons, Ltd
status: public
title: 'SiCO Ceramics as Storage Materials for Alkali Metals/Ions: Insights on Structure
  Moieties from Solid-State NMR and DFT Calculations'
type: journal_article
user_id: '100715'
volume: 16
year: '2023'
...
---
_id: '30209'
abstract:
- lang: eng
  text: <jats:p>DNA origami technology enables the folding of DNA strands into complex
    nanoscale shapes whose properties and interactions with molecular species often
    deviate significantly from that of genomic DNA. Here, we investigate the salting-out
    of different DNA origami shapes by the kosmotropic salt ammonium sulfate that
    is routinely employed in protein precipitation. We find that centrifugation in
    the presence of 3 M ammonium sulfate results in notable precipitation of DNA origami
    nanostructures but not of double-stranded genomic DNA. The precipitated DNA origami
    nanostructures can be resuspended in ammonium sulfate-free buffer without apparent
    formation of aggregates or loss of structural integrity. Even though quasi-1D
    six-helix bundle DNA origami are slightly less susceptible toward salting-out
    than more compact DNA origami triangles and 24-helix bundles, precipitation and
    recovery yields appear to be mostly independent of DNA origami shape and superstructure.
    Exploiting the specificity of ammonium sulfate salting-out for DNA origami nanostructures,
    we further apply this method to separate DNA origami triangles from genomic DNA
    fragments in a complex mixture. Our results thus demonstrate the possibility of
    concentrating and purifying DNA origami nanostructures by ammonium sulfate-induced
    salting-out.</jats:p>
author:
- first_name: Marcel
  full_name: Hanke, Marcel
  last_name: Hanke
- first_name: Niklas
  full_name: Hansen, Niklas
  last_name: Hansen
- first_name: Ruiping
  full_name: Chen, Ruiping
  last_name: Chen
- first_name: Guido
  full_name: Grundmeier, Guido
  last_name: Grundmeier
- first_name: Karim
  full_name: Fahmy, Karim
  last_name: Fahmy
- first_name: Adrian
  full_name: Keller, Adrian
  last_name: Keller
citation:
  ama: Hanke M, Hansen N, Chen R, Grundmeier G, Fahmy K, Keller A. Salting-Out of
    DNA Origami Nanostructures by Ammonium Sulfate. <i>International Journal of Molecular
    Sciences</i>. 2022;23(5):2817. doi:<a href="https://doi.org/10.3390/ijms23052817">10.3390/ijms23052817</a>
  apa: Hanke, M., Hansen, N., Chen, R., Grundmeier, G., Fahmy, K., &#38; Keller, A.
    (2022). Salting-Out of DNA Origami Nanostructures by Ammonium Sulfate. <i>International
    Journal of Molecular Sciences</i>, <i>23</i>(5), 2817. <a href="https://doi.org/10.3390/ijms23052817">https://doi.org/10.3390/ijms23052817</a>
  bibtex: '@article{Hanke_Hansen_Chen_Grundmeier_Fahmy_Keller_2022, title={Salting-Out
    of DNA Origami Nanostructures by Ammonium Sulfate}, volume={23}, DOI={<a href="https://doi.org/10.3390/ijms23052817">10.3390/ijms23052817</a>},
    number={5}, journal={International Journal of Molecular Sciences}, publisher={MDPI
    AG}, author={Hanke, Marcel and Hansen, Niklas and Chen, Ruiping and Grundmeier,
    Guido and Fahmy, Karim and Keller, Adrian}, year={2022}, pages={2817} }'
  chicago: 'Hanke, Marcel, Niklas Hansen, Ruiping Chen, Guido Grundmeier, Karim Fahmy,
    and Adrian Keller. “Salting-Out of DNA Origami Nanostructures by Ammonium Sulfate.”
    <i>International Journal of Molecular Sciences</i> 23, no. 5 (2022): 2817. <a
    href="https://doi.org/10.3390/ijms23052817">https://doi.org/10.3390/ijms23052817</a>.'
  ieee: 'M. Hanke, N. Hansen, R. Chen, G. Grundmeier, K. Fahmy, and A. Keller, “Salting-Out
    of DNA Origami Nanostructures by Ammonium Sulfate,” <i>International Journal of
    Molecular Sciences</i>, vol. 23, no. 5, p. 2817, 2022, doi: <a href="https://doi.org/10.3390/ijms23052817">10.3390/ijms23052817</a>.'
  mla: Hanke, Marcel, et al. “Salting-Out of DNA Origami Nanostructures by Ammonium
    Sulfate.” <i>International Journal of Molecular Sciences</i>, vol. 23, no. 5,
    MDPI AG, 2022, p. 2817, doi:<a href="https://doi.org/10.3390/ijms23052817">10.3390/ijms23052817</a>.
  short: M. Hanke, N. Hansen, R. Chen, G. Grundmeier, K. Fahmy, A. Keller, International
    Journal of Molecular Sciences 23 (2022) 2817.
date_created: 2022-03-07T07:28:02Z
date_updated: 2022-03-07T07:29:27Z
department:
- _id: '302'
doi: 10.3390/ijms23052817
intvolume: '        23'
issue: '5'
keyword:
- Inorganic Chemistry
- Organic Chemistry
- Physical and Theoretical Chemistry
- Computer Science Applications
- Spectroscopy
- Molecular Biology
- General Medicine
- Catalysis
language:
- iso: eng
page: '2817'
publication: International Journal of Molecular Sciences
publication_identifier:
  issn:
  - 1422-0067
publication_status: published
publisher: MDPI AG
status: public
title: Salting-Out of DNA Origami Nanostructures by Ammonium Sulfate
type: journal_article
user_id: '48864'
volume: 23
year: '2022'
...
---
_id: '32432'
author:
- first_name: Yu
  full_name: Yang, Yu
  last_name: Yang
- first_name: Jingyuan
  full_name: Huang, Jingyuan
  last_name: Huang
- first_name: Daniel
  full_name: Dornbusch, Daniel
  last_name: Dornbusch
- first_name: Guido
  full_name: Grundmeier, Guido
  id: '194'
  last_name: Grundmeier
- first_name: Karim
  full_name: Fahmy, Karim
  last_name: Fahmy
- first_name: Adrian
  full_name: Keller, Adrian
  id: '48864'
  last_name: Keller
  orcid: 0000-0001-7139-3110
- first_name: David L.
  full_name: Cheung, David L.
  last_name: Cheung
citation:
  ama: Yang Y, Huang J, Dornbusch D, et al. Effect of Surface Hydrophobicity on the
    Adsorption of a Pilus-Derived Adhesin-like Peptide. <i>Langmuir</i>. 2022;38:9257–9265.
    doi:<a href="https://doi.org/10.1021/acs.langmuir.2c01016">10.1021/acs.langmuir.2c01016</a>
  apa: Yang, Y., Huang, J., Dornbusch, D., Grundmeier, G., Fahmy, K., Keller, A.,
    &#38; Cheung, D. L. (2022). Effect of Surface Hydrophobicity on the Adsorption
    of a Pilus-Derived Adhesin-like Peptide. <i>Langmuir</i>, <i>38</i>, 9257–9265.
    <a href="https://doi.org/10.1021/acs.langmuir.2c01016">https://doi.org/10.1021/acs.langmuir.2c01016</a>
  bibtex: '@article{Yang_Huang_Dornbusch_Grundmeier_Fahmy_Keller_Cheung_2022, title={Effect
    of Surface Hydrophobicity on the Adsorption of a Pilus-Derived Adhesin-like Peptide},
    volume={38}, DOI={<a href="https://doi.org/10.1021/acs.langmuir.2c01016">10.1021/acs.langmuir.2c01016</a>},
    journal={Langmuir}, publisher={American Chemical Society (ACS)}, author={Yang,
    Yu and Huang, Jingyuan and Dornbusch, Daniel and Grundmeier, Guido and Fahmy,
    Karim and Keller, Adrian and Cheung, David L.}, year={2022}, pages={9257–9265}
    }'
  chicago: 'Yang, Yu, Jingyuan Huang, Daniel Dornbusch, Guido Grundmeier, Karim Fahmy,
    Adrian Keller, and David L. Cheung. “Effect of Surface Hydrophobicity on the Adsorption
    of a Pilus-Derived Adhesin-like Peptide.” <i>Langmuir</i> 38 (2022): 9257–9265.
    <a href="https://doi.org/10.1021/acs.langmuir.2c01016">https://doi.org/10.1021/acs.langmuir.2c01016</a>.'
  ieee: 'Y. Yang <i>et al.</i>, “Effect of Surface Hydrophobicity on the Adsorption
    of a Pilus-Derived Adhesin-like Peptide,” <i>Langmuir</i>, vol. 38, pp. 9257–9265,
    2022, doi: <a href="https://doi.org/10.1021/acs.langmuir.2c01016">10.1021/acs.langmuir.2c01016</a>.'
  mla: Yang, Yu, et al. “Effect of Surface Hydrophobicity on the Adsorption of a Pilus-Derived
    Adhesin-like Peptide.” <i>Langmuir</i>, vol. 38, American Chemical Society (ACS),
    2022, pp. 9257–9265, doi:<a href="https://doi.org/10.1021/acs.langmuir.2c01016">10.1021/acs.langmuir.2c01016</a>.
  short: Y. Yang, J. Huang, D. Dornbusch, G. Grundmeier, K. Fahmy, A. Keller, D.L.
    Cheung, Langmuir 38 (2022) 9257–9265.
date_created: 2022-07-27T07:45:51Z
date_updated: 2022-08-08T06:39:04Z
department:
- _id: '302'
doi: 10.1021/acs.langmuir.2c01016
intvolume: '        38'
keyword:
- Electrochemistry
- Spectroscopy
- Surfaces and Interfaces
- Condensed Matter Physics
- General Materials Science
language:
- iso: eng
page: 9257–9265
publication: Langmuir
publication_identifier:
  issn:
  - 0743-7463
  - 1520-5827
publication_status: published
publisher: American Chemical Society (ACS)
status: public
title: Effect of Surface Hydrophobicity on the Adsorption of a Pilus-Derived Adhesin-like
  Peptide
type: journal_article
user_id: '48864'
volume: 38
year: '2022'
...
---
_id: '32589'
abstract:
- lang: eng
  text: <jats:p>Guanidinium (Gdm) undergoes interactions with both hydrophilic and
    hydrophobic groups and, thus, is a highly potent denaturant of biomolecular structure.
    However, our molecular understanding of the interaction of Gdm with proteins and
    DNA is still rather limited. Here, we investigated the denaturation of DNA origami
    nanostructures by three Gdm salts, i.e., guanidinium chloride (GdmCl), guanidinium
    sulfate (Gdm2SO4), and guanidinium thiocyanate (GdmSCN), at different temperatures
    and in dependence of incubation time. Using DNA origami nanostructures as sensors
    that translate small molecular transitions into nanostructural changes, the denaturing
    effects of the Gdm salts were directly visualized by atomic force microscopy.
    GdmSCN was the most potent DNA denaturant, which caused complete DNA origami denaturation
    at 50 °C already at a concentration of 2 M. Under such harsh conditions, denaturation
    occurred within the first 15 min of Gdm exposure, whereas much slower kinetics
    were observed for the more weakly denaturing salt Gdm2SO4 at 25 °C. Lastly, we
    observed a novel non-monotonous temperature dependence of DNA origami denaturation
    in Gdm2SO4 with the fraction of intact nanostructures having an intermediate minimum
    at about 40 °C. Our results, thus, provide further insights into the highly complex
    Gdm–DNA interaction and underscore the importance of the counteranion species.</jats:p>
author:
- first_name: Marcel
  full_name: Hanke, Marcel
  last_name: Hanke
- first_name: Niklas
  full_name: Hansen, Niklas
  last_name: Hansen
- first_name: Emilia
  full_name: Tomm, Emilia
  last_name: Tomm
- first_name: Guido
  full_name: Grundmeier, Guido
  id: '194'
  last_name: Grundmeier
- first_name: Adrian
  full_name: Keller, Adrian
  id: '48864'
  last_name: Keller
  orcid: 0000-0001-7139-3110
citation:
  ama: Hanke M, Hansen N, Tomm E, Grundmeier G, Keller A. Time-Dependent DNA Origami
    Denaturation by Guanidinium Chloride, Guanidinium Sulfate, and Guanidinium Thiocyanate.
    <i>International Journal of Molecular Sciences</i>. 2022;23(15):8547. doi:<a href="https://doi.org/10.3390/ijms23158547">10.3390/ijms23158547</a>
  apa: Hanke, M., Hansen, N., Tomm, E., Grundmeier, G., &#38; Keller, A. (2022). Time-Dependent
    DNA Origami Denaturation by Guanidinium Chloride, Guanidinium Sulfate, and Guanidinium
    Thiocyanate. <i>International Journal of Molecular Sciences</i>, <i>23</i>(15),
    8547. <a href="https://doi.org/10.3390/ijms23158547">https://doi.org/10.3390/ijms23158547</a>
  bibtex: '@article{Hanke_Hansen_Tomm_Grundmeier_Keller_2022, title={Time-Dependent
    DNA Origami Denaturation by Guanidinium Chloride, Guanidinium Sulfate, and Guanidinium
    Thiocyanate}, volume={23}, DOI={<a href="https://doi.org/10.3390/ijms23158547">10.3390/ijms23158547</a>},
    number={15}, journal={International Journal of Molecular Sciences}, publisher={MDPI
    AG}, author={Hanke, Marcel and Hansen, Niklas and Tomm, Emilia and Grundmeier,
    Guido and Keller, Adrian}, year={2022}, pages={8547} }'
  chicago: 'Hanke, Marcel, Niklas Hansen, Emilia Tomm, Guido Grundmeier, and Adrian
    Keller. “Time-Dependent DNA Origami Denaturation by Guanidinium Chloride, Guanidinium
    Sulfate, and Guanidinium Thiocyanate.” <i>International Journal of Molecular Sciences</i>
    23, no. 15 (2022): 8547. <a href="https://doi.org/10.3390/ijms23158547">https://doi.org/10.3390/ijms23158547</a>.'
  ieee: 'M. Hanke, N. Hansen, E. Tomm, G. Grundmeier, and A. Keller, “Time-Dependent
    DNA Origami Denaturation by Guanidinium Chloride, Guanidinium Sulfate, and Guanidinium
    Thiocyanate,” <i>International Journal of Molecular Sciences</i>, vol. 23, no.
    15, p. 8547, 2022, doi: <a href="https://doi.org/10.3390/ijms23158547">10.3390/ijms23158547</a>.'
  mla: Hanke, Marcel, et al. “Time-Dependent DNA Origami Denaturation by Guanidinium
    Chloride, Guanidinium Sulfate, and Guanidinium Thiocyanate.” <i>International
    Journal of Molecular Sciences</i>, vol. 23, no. 15, MDPI AG, 2022, p. 8547, doi:<a
    href="https://doi.org/10.3390/ijms23158547">10.3390/ijms23158547</a>.
  short: M. Hanke, N. Hansen, E. Tomm, G. Grundmeier, A. Keller, International Journal
    of Molecular Sciences 23 (2022) 8547.
date_created: 2022-08-08T06:39:20Z
date_updated: 2022-08-08T06:40:14Z
department:
- _id: '302'
doi: 10.3390/ijms23158547
intvolume: '        23'
issue: '15'
keyword:
- Inorganic Chemistry
- Organic Chemistry
- Physical and Theoretical Chemistry
- Computer Science Applications
- Spectroscopy
- Molecular Biology
- General Medicine
- Catalysis
language:
- iso: eng
page: '8547'
publication: International Journal of Molecular Sciences
publication_identifier:
  issn:
  - 1422-0067
publication_status: published
publisher: MDPI AG
status: public
title: Time-Dependent DNA Origami Denaturation by Guanidinium Chloride, Guanidinium
  Sulfate, and Guanidinium Thiocyanate
type: journal_article
user_id: '48864'
volume: 23
year: '2022'
...
---
_id: '40986'
abstract:
- lang: eng
  text: Currently, chemistry and physics are strongly dependent on the concept of
    the oxidation state. While the formal oxidation state is easily evaluated, the
    real physical oxidation state value is often difficult to determine and significantly
    varies from the formal values. Determination of the ionization threshold in X-ray
    absorption spectroscopy (XANES) relies on the absorption edge position and sometimes
    poses limitations, mainly due to the edge resonances. Moreover, the lower energy
    states can be probed only within x-soft or XUV photons providing only surface
    state information of probed materials. Here, we employ high energy resolution
    off-resonant spectroscopy to determine both 1s and 3p binding energies of Fe-based
    materials and therefore correlate to their physical oxidation state. The results
    are compared to the ones obtained with classical X-ray absorption, X-ray emission,
    and photoelectron spectroscopies. The observed differences in binding energies
    are discussed in a frame of initial and final state interactions with the atom's
    electronic configurations. The presented methodology is discussed towards potential
    use to single-shot experiments and application at X-ray free-electron lasers.
    Alternatively, core level X-ray emission spectroscopy can be used, but the emission
    line positions are strongly affected by spin-orbit interaction. However, due to
    the energy transfer from the photon to the excited core electron, the same information
    as in XANES is probed in high energy resolution off-resonant spectroscopy (HEROS).
    Based on the Kramers–Heisenberg theory, we propose a new approach for ionization
    threshold determination which is free of the limitations encountered in XANES-based
    determination of the core state energy. Namely, the value of core state energy
    can be determined analytically using a few HEROS spectra recorded with significantly
    higher spectral resolution. This approach provides a basis for the universal physical
    oxidation state determination method.
author:
- first_name: Michał
  full_name: Nowakowski, Michał
  id: '78878'
  last_name: Nowakowski
  orcid: 0000-0002-3734-7011
- first_name: Aleksandr
  full_name: Kalinko, Aleksandr
  last_name: Kalinko
- first_name: Jakub
  full_name: Szlachetko, Jakub
  last_name: Szlachetko
- first_name: Rafał
  full_name: Fanselow, Rafał
  last_name: Fanselow
- first_name: Matthias
  full_name: Bauer, Matthias
  id: '47241'
  last_name: Bauer
  orcid: 0000-0002-9294-6076
citation:
  ama: Nowakowski M, Kalinko A, Szlachetko J, Fanselow R, Bauer M. High resolution
    off resonant spectroscopy as a probe of the oxidation state. <i>Journal of Analytical
    Atomic Spectrometry</i>. 2022;37(11):2383-2391. doi:<a href="https://doi.org/10.1039/d2ja00232a">10.1039/d2ja00232a</a>
  apa: Nowakowski, M., Kalinko, A., Szlachetko, J., Fanselow, R., &#38; Bauer, M.
    (2022). High resolution off resonant spectroscopy as a probe of the oxidation
    state. <i>Journal of Analytical Atomic Spectrometry</i>, <i>37</i>(11), 2383–2391.
    <a href="https://doi.org/10.1039/d2ja00232a">https://doi.org/10.1039/d2ja00232a</a>
  bibtex: '@article{Nowakowski_Kalinko_Szlachetko_Fanselow_Bauer_2022, title={High
    resolution off resonant spectroscopy as a probe of the oxidation state}, volume={37},
    DOI={<a href="https://doi.org/10.1039/d2ja00232a">10.1039/d2ja00232a</a>}, number={11},
    journal={Journal of Analytical Atomic Spectrometry}, publisher={Royal Society
    of Chemistry (RSC)}, author={Nowakowski, Michał and Kalinko, Aleksandr and Szlachetko,
    Jakub and Fanselow, Rafał and Bauer, Matthias}, year={2022}, pages={2383–2391}
    }'
  chicago: 'Nowakowski, Michał, Aleksandr Kalinko, Jakub Szlachetko, Rafał Fanselow,
    and Matthias Bauer. “High Resolution off Resonant Spectroscopy as a Probe of the
    Oxidation State.” <i>Journal of Analytical Atomic Spectrometry</i> 37, no. 11
    (2022): 2383–91. <a href="https://doi.org/10.1039/d2ja00232a">https://doi.org/10.1039/d2ja00232a</a>.'
  ieee: 'M. Nowakowski, A. Kalinko, J. Szlachetko, R. Fanselow, and M. Bauer, “High
    resolution off resonant spectroscopy as a probe of the oxidation state,” <i>Journal
    of Analytical Atomic Spectrometry</i>, vol. 37, no. 11, pp. 2383–2391, 2022, doi:
    <a href="https://doi.org/10.1039/d2ja00232a">10.1039/d2ja00232a</a>.'
  mla: Nowakowski, Michał, et al. “High Resolution off Resonant Spectroscopy as a
    Probe of the Oxidation State.” <i>Journal of Analytical Atomic Spectrometry</i>,
    vol. 37, no. 11, Royal Society of Chemistry (RSC), 2022, pp. 2383–91, doi:<a href="https://doi.org/10.1039/d2ja00232a">10.1039/d2ja00232a</a>.
  short: M. Nowakowski, A. Kalinko, J. Szlachetko, R. Fanselow, M. Bauer, Journal
    of Analytical Atomic Spectrometry 37 (2022) 2383–2391.
date_created: 2023-01-30T16:24:06Z
date_updated: 2024-05-07T11:43:54Z
department:
- _id: '35'
- _id: '306'
doi: 10.1039/d2ja00232a
intvolume: '        37'
issue: '11'
keyword:
- Spectroscopy
- Analytical Chemistry
language:
- iso: eng
page: 2383-2391
publication: Journal of Analytical Atomic Spectrometry
publication_identifier:
  issn:
  - 0267-9477
  - 1364-5544
publication_status: published
publisher: Royal Society of Chemistry (RSC)
status: public
title: High resolution off resonant spectroscopy as a probe of the oxidation state
type: journal_article
user_id: '48467'
volume: 37
year: '2022'
...
---
_id: '40984'
abstract:
- lang: eng
  text: A two-step seeded-growth method was refined to synthesize Au@Pd core@shell
    nanoparticles with thin Pd shells, which were then deposited onto alumina to obtain
    a supported Au@Pd/Al2O3 catalyst active for prototypical CO oxidation. By the
    strict control of temperature and Pd/Au molar ratio and the use of l-ascorbic
    acid for making both Au cores and Pd shells, a 1.5 nm Pd layer is formed around
    the Au core, as evidenced by transmission electron microscopy and energy-dispersive
    spectroscopy. The core@shell structure and the Pd shell remain intact upon deposition
    onto alumina and after being used for CO oxidation, as revealed by additional
    X-ray diffraction and X-ray photoemission spectroscopy before and after the reaction.
    The Pd shell surface was characterized with in situ infrared (IR) spectroscopy
    using CO as a chemical probe during CO adsorption–desorption. The IR bands for
    CO ad-species on the Pd shell suggest that the shell exposes mostly low-index
    surfaces, likely Pd(111) as the majority facet. Generally, the IR bands are blue-shifted
    as compared to conventional Pd/alumina catalysts, which may be due to the different
    support materials for Pd, Au versus Al2O3, and/or less strain of the Pd shell.
    Frequencies obtained from density functional calculations suggest the latter to
    be significant. Further, the catalytic CO oxidation ignition-extinction processes
    were followed by in situ IR, which shows the common CO poisoning and kinetic behavior
    associated with competitive adsorption of CO and O2 that is typically observed
    for noble metal catalysts.
author:
- first_name: Yanyue
  full_name: Feng, Yanyue
  last_name: Feng
- first_name: Andreas
  full_name: Schaefer, Andreas
  last_name: Schaefer
- first_name: Anders
  full_name: Hellman, Anders
  last_name: Hellman
- first_name: Mengqiao
  full_name: Di, Mengqiao
  last_name: Di
- first_name: Hanna
  full_name: Härelind, Hanna
  last_name: Härelind
- first_name: Matthias
  full_name: Bauer, Matthias
  id: '47241'
  last_name: Bauer
  orcid: 0000-0002-9294-6076
- first_name: Per-Anders
  full_name: Carlsson, Per-Anders
  last_name: Carlsson
citation:
  ama: Feng Y, Schaefer A, Hellman A, et al. Synthesis and Characterization of Catalytically
    Active Au Core─Pd Shell Nanoparticles Supported on Alumina. <i>Langmuir</i>. 2022;38(42):12859-12870.
    doi:<a href="https://doi.org/10.1021/acs.langmuir.2c01834">10.1021/acs.langmuir.2c01834</a>
  apa: Feng, Y., Schaefer, A., Hellman, A., Di, M., Härelind, H., Bauer, M., &#38;
    Carlsson, P.-A. (2022). Synthesis and Characterization of Catalytically Active
    Au Core─Pd Shell Nanoparticles Supported on Alumina. <i>Langmuir</i>, <i>38</i>(42),
    12859–12870. <a href="https://doi.org/10.1021/acs.langmuir.2c01834">https://doi.org/10.1021/acs.langmuir.2c01834</a>
  bibtex: '@article{Feng_Schaefer_Hellman_Di_Härelind_Bauer_Carlsson_2022, title={Synthesis
    and Characterization of Catalytically Active Au Core─Pd Shell Nanoparticles Supported
    on Alumina}, volume={38}, DOI={<a href="https://doi.org/10.1021/acs.langmuir.2c01834">10.1021/acs.langmuir.2c01834</a>},
    number={42}, journal={Langmuir}, publisher={American Chemical Society (ACS)},
    author={Feng, Yanyue and Schaefer, Andreas and Hellman, Anders and Di, Mengqiao
    and Härelind, Hanna and Bauer, Matthias and Carlsson, Per-Anders}, year={2022},
    pages={12859–12870} }'
  chicago: 'Feng, Yanyue, Andreas Schaefer, Anders Hellman, Mengqiao Di, Hanna Härelind,
    Matthias Bauer, and Per-Anders Carlsson. “Synthesis and Characterization of Catalytically
    Active Au Core─Pd Shell Nanoparticles Supported on Alumina.” <i>Langmuir</i> 38,
    no. 42 (2022): 12859–70. <a href="https://doi.org/10.1021/acs.langmuir.2c01834">https://doi.org/10.1021/acs.langmuir.2c01834</a>.'
  ieee: 'Y. Feng <i>et al.</i>, “Synthesis and Characterization of Catalytically Active
    Au Core─Pd Shell Nanoparticles Supported on Alumina,” <i>Langmuir</i>, vol. 38,
    no. 42, pp. 12859–12870, 2022, doi: <a href="https://doi.org/10.1021/acs.langmuir.2c01834">10.1021/acs.langmuir.2c01834</a>.'
  mla: Feng, Yanyue, et al. “Synthesis and Characterization of Catalytically Active
    Au Core─Pd Shell Nanoparticles Supported on Alumina.” <i>Langmuir</i>, vol. 38,
    no. 42, American Chemical Society (ACS), 2022, pp. 12859–70, doi:<a href="https://doi.org/10.1021/acs.langmuir.2c01834">10.1021/acs.langmuir.2c01834</a>.
  short: Y. Feng, A. Schaefer, A. Hellman, M. Di, H. Härelind, M. Bauer, P.-A. Carlsson,
    Langmuir 38 (2022) 12859–12870.
date_created: 2023-01-30T16:22:57Z
date_updated: 2023-01-31T08:00:11Z
department:
- _id: '35'
- _id: '306'
doi: 10.1021/acs.langmuir.2c01834
intvolume: '        38'
issue: '42'
keyword:
- Electrochemistry
- Spectroscopy
- Surfaces and Interfaces
- Condensed Matter Physics
- General Materials Science
language:
- iso: eng
page: 12859-12870
publication: Langmuir
publication_identifier:
  issn:
  - 0743-7463
  - 1520-5827
publication_status: published
publisher: American Chemical Society (ACS)
status: public
title: Synthesis and Characterization of Catalytically Active Au Core─Pd Shell Nanoparticles
  Supported on Alumina
type: journal_article
user_id: '48467'
volume: 38
year: '2022'
...
---
_id: '41319'
abstract:
- lang: eng
  text: <jats:p>The direct conversion between HEROS-XES and XANES edge position (E0)
    without need of measuring absorption spectra.</jats:p>
author:
- first_name: Michal
  full_name: Nowakowski, Michal
  last_name: Nowakowski
- first_name: Aleksandr
  full_name: Kalinko, Aleksandr
  last_name: Kalinko
- first_name: Jakub
  full_name: Szlachetko, Jakub
  last_name: Szlachetko
- first_name: Rafał
  full_name: Fanselow, Rafał
  last_name: Fanselow
- first_name: Matthias
  full_name: Bauer, Matthias
  last_name: Bauer
citation:
  ama: Nowakowski M, Kalinko A, Szlachetko J, Fanselow R, Bauer M. High resolution
    off resonant spectroscopy as a probe of the oxidation state. <i>Journal of Analytical
    Atomic Spectrometry</i>. 2022;37(11):2383-2391. doi:<a href="https://doi.org/10.1039/d2ja00232a">10.1039/d2ja00232a</a>
  apa: Nowakowski, M., Kalinko, A., Szlachetko, J., Fanselow, R., &#38; Bauer, M.
    (2022). High resolution off resonant spectroscopy as a probe of the oxidation
    state. <i>Journal of Analytical Atomic Spectrometry</i>, <i>37</i>(11), 2383–2391.
    <a href="https://doi.org/10.1039/d2ja00232a">https://doi.org/10.1039/d2ja00232a</a>
  bibtex: '@article{Nowakowski_Kalinko_Szlachetko_Fanselow_Bauer_2022, title={High
    resolution off resonant spectroscopy as a probe of the oxidation state}, volume={37},
    DOI={<a href="https://doi.org/10.1039/d2ja00232a">10.1039/d2ja00232a</a>}, number={11},
    journal={Journal of Analytical Atomic Spectrometry}, publisher={Royal Society
    of Chemistry (RSC)}, author={Nowakowski, Michal and Kalinko, Aleksandr and Szlachetko,
    Jakub and Fanselow, Rafał and Bauer, Matthias}, year={2022}, pages={2383–2391}
    }'
  chicago: 'Nowakowski, Michal, Aleksandr Kalinko, Jakub Szlachetko, Rafał Fanselow,
    and Matthias Bauer. “High Resolution off Resonant Spectroscopy as a Probe of the
    Oxidation State.” <i>Journal of Analytical Atomic Spectrometry</i> 37, no. 11
    (2022): 2383–91. <a href="https://doi.org/10.1039/d2ja00232a">https://doi.org/10.1039/d2ja00232a</a>.'
  ieee: 'M. Nowakowski, A. Kalinko, J. Szlachetko, R. Fanselow, and M. Bauer, “High
    resolution off resonant spectroscopy as a probe of the oxidation state,” <i>Journal
    of Analytical Atomic Spectrometry</i>, vol. 37, no. 11, pp. 2383–2391, 2022, doi:
    <a href="https://doi.org/10.1039/d2ja00232a">10.1039/d2ja00232a</a>.'
  mla: Nowakowski, Michal, et al. “High Resolution off Resonant Spectroscopy as a
    Probe of the Oxidation State.” <i>Journal of Analytical Atomic Spectrometry</i>,
    vol. 37, no. 11, Royal Society of Chemistry (RSC), 2022, pp. 2383–91, doi:<a href="https://doi.org/10.1039/d2ja00232a">10.1039/d2ja00232a</a>.
  short: M. Nowakowski, A. Kalinko, J. Szlachetko, R. Fanselow, M. Bauer, Journal
    of Analytical Atomic Spectrometry 37 (2022) 2383–2391.
date_created: 2023-01-31T22:47:06Z
date_updated: 2023-02-01T08:50:34Z
doi: 10.1039/d2ja00232a
intvolume: '        37'
issue: '11'
keyword:
- Spectroscopy
- Analytical Chemistry
language:
- iso: eng
page: 2383-2391
publication: Journal of Analytical Atomic Spectrometry
publication_identifier:
  issn:
  - 0267-9477
  - 1364-5544
publication_status: published
publisher: Royal Society of Chemistry (RSC)
status: public
title: High resolution off resonant spectroscopy as a probe of the oxidation state
type: journal_article
user_id: '78878'
volume: 37
year: '2022'
...
---
_id: '62801'
abstract:
- lang: eng
  text: The three-dimensional (3D) distribution of individual atoms on the surface
    of catalyst nanoparticles plays a vital role in their activity and stability.
    Optimising the performance of electrocatalysts requires atomic-scale information,
    but it is difficult to obtain. Here, we use atom probe tomography to elucidate
    the 3D structure of 10 nm sized Co2FeO4 and CoFe2O4 nanoparticles during oxygen
    evolution reaction (OER). We reveal nanoscale spinodal decomposition in pristine
    Co2FeO4. The interfaces of Co-rich and Fe-rich nanodomains of Co2FeO4 become trapping
    sites for hydroxyl groups, contributing to a higher OER activity compared to that
    of CoFe2O4. However, the activity of Co2FeO4 drops considerably due to concurrent
    irreversible transformation towards CoIVO2 and pronounced Fe dissolution. In contrast,
    there is negligible elemental redistribution for CoFe2O4 after OER, except for
    surface structural transformation towards (FeIII, CoIII)2O3. Overall, our study
    provides a unique 3D compositional distribution of mixed Co-Fe spinel oxides,
    which gives atomic-scale insights into active sites and the deactivation of electrocatalysts
    during OER.
article_number: '179'
article_type: original
author:
- first_name: Weikai
  full_name: Xiang, Weikai
  last_name: Xiang
- first_name: Nating
  full_name: Yang, Nating
  last_name: Yang
- first_name: Xiaopeng
  full_name: Li, Xiaopeng
  last_name: Li
- first_name: Julia
  full_name: Linnemann, Julia
  id: '116779'
  last_name: Linnemann
  orcid: 0000-0001-6883-5424
- first_name: Ulrich
  full_name: Hagemann, Ulrich
  last_name: Hagemann
- first_name: Olaf
  full_name: Ruediger, Olaf
  last_name: Ruediger
- first_name: Markus
  full_name: Heidelmann, Markus
  last_name: Heidelmann
- first_name: Tobias
  full_name: Falk, Tobias
  last_name: Falk
- first_name: Matteo
  full_name: Aramini, Matteo
  last_name: Aramini
- first_name: Serena
  full_name: DeBeer, Serena
  last_name: DeBeer
- first_name: Martin
  full_name: Muhler, Martin
  last_name: Muhler
- first_name: Kristina
  full_name: Tschulik, Kristina
  last_name: Tschulik
- first_name: Tong
  full_name: Li, Tong
  last_name: Li
citation:
  ama: Xiang W, Yang N, Li X, et al. 3D atomic-scale imaging of mixed Co-Fe spinel
    oxide nanoparticles during oxygen evolution reaction. <i>Nature Communications</i>.
    2022;13(1). doi:<a href="https://doi.org/10.1038/s41467-021-27788-2">10.1038/s41467-021-27788-2</a>
  apa: Xiang, W., Yang, N., Li, X., Linnemann, J., Hagemann, U., Ruediger, O., Heidelmann,
    M., Falk, T., Aramini, M., DeBeer, S., Muhler, M., Tschulik, K., &#38; Li, T.
    (2022). 3D atomic-scale imaging of mixed Co-Fe spinel oxide nanoparticles during
    oxygen evolution reaction. <i>Nature Communications</i>, <i>13</i>(1), Article
    179. <a href="https://doi.org/10.1038/s41467-021-27788-2">https://doi.org/10.1038/s41467-021-27788-2</a>
  bibtex: '@article{Xiang_Yang_Li_Linnemann_Hagemann_Ruediger_Heidelmann_Falk_Aramini_DeBeer_et
    al._2022, title={3D atomic-scale imaging of mixed Co-Fe spinel oxide nanoparticles
    during oxygen evolution reaction}, volume={13}, DOI={<a href="https://doi.org/10.1038/s41467-021-27788-2">10.1038/s41467-021-27788-2</a>},
    number={1179}, journal={Nature Communications}, publisher={Springer Science and
    Business Media LLC}, author={Xiang, Weikai and Yang, Nating and Li, Xiaopeng and
    Linnemann, Julia and Hagemann, Ulrich and Ruediger, Olaf and Heidelmann, Markus
    and Falk, Tobias and Aramini, Matteo and DeBeer, Serena and et al.}, year={2022}
    }'
  chicago: Xiang, Weikai, Nating Yang, Xiaopeng Li, Julia Linnemann, Ulrich Hagemann,
    Olaf Ruediger, Markus Heidelmann, et al. “3D Atomic-Scale Imaging of Mixed Co-Fe
    Spinel Oxide Nanoparticles during Oxygen Evolution Reaction.” <i>Nature Communications</i>
    13, no. 1 (2022). <a href="https://doi.org/10.1038/s41467-021-27788-2">https://doi.org/10.1038/s41467-021-27788-2</a>.
  ieee: 'W. Xiang <i>et al.</i>, “3D atomic-scale imaging of mixed Co-Fe spinel oxide
    nanoparticles during oxygen evolution reaction,” <i>Nature Communications</i>,
    vol. 13, no. 1, Art. no. 179, 2022, doi: <a href="https://doi.org/10.1038/s41467-021-27788-2">10.1038/s41467-021-27788-2</a>.'
  mla: Xiang, Weikai, et al. “3D Atomic-Scale Imaging of Mixed Co-Fe Spinel Oxide
    Nanoparticles during Oxygen Evolution Reaction.” <i>Nature Communications</i>,
    vol. 13, no. 1, 179, Springer Science and Business Media LLC, 2022, doi:<a href="https://doi.org/10.1038/s41467-021-27788-2">10.1038/s41467-021-27788-2</a>.
  short: W. Xiang, N. Yang, X. Li, J. Linnemann, U. Hagemann, O. Ruediger, M. Heidelmann,
    T. Falk, M. Aramini, S. DeBeer, M. Muhler, K. Tschulik, T. Li, Nature Communications
    13 (2022).
date_created: 2025-12-03T15:22:16Z
date_updated: 2025-12-03T16:30:12Z
department:
- _id: '985'
doi: 10.1038/s41467-021-27788-2
extern: '1'
intvolume: '        13'
issue: '1'
keyword:
- electrocatalysis
- oxygen evolution reaction
- cobalt spinel
- electrochemical impedance spectroscopy
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.nature.com/articles/s41467-021-27788-2
oa: '1'
publication: Nature Communications
publication_identifier:
  issn:
  - 2041-1723
publication_status: published
publisher: Springer Science and Business Media LLC
quality_controlled: '1'
status: public
title: 3D atomic-scale imaging of mixed Co-Fe spinel oxide nanoparticles during oxygen
  evolution reaction
type: journal_article
user_id: '116779'
volume: 13
year: '2022'
...
---
_id: '34087'
author:
- first_name: Steffen
  full_name: Knust, Steffen
  last_name: Knust
- first_name: Lukas
  full_name: Ruhm, Lukas
  last_name: Ruhm
- first_name: Andreas
  full_name: Kuhlmann, Andreas
  last_name: Kuhlmann
- first_name: Dennis
  full_name: Meinderink, Dennis
  id: '32378'
  last_name: Meinderink
  orcid: 0000-0002-2755-6514
- first_name: Julius
  full_name: Bürger, Julius
  id: '46952'
  last_name: Bürger
- first_name: Jörg
  full_name: Lindner, Jörg
  id: '20797'
  last_name: Lindner
- first_name: Maria Teresa
  full_name: de los Arcos de Pedro, Maria Teresa
  id: '54556'
  last_name: de los Arcos de Pedro
- first_name: Guido
  full_name: Grundmeier, Guido
  id: '194'
  last_name: Grundmeier
citation:
  ama: Knust S, Ruhm L, Kuhlmann A, et al. In situ backside Raman spectroscopy of
    zinc oxide nanorods in an atmospheric‐pressure dielectric barrier discharge plasma.
    <i>Journal of Raman Spectroscopy</i>. 2021;52(7):1237-1245. doi:<a href="https://doi.org/10.1002/jrs.6123">10.1002/jrs.6123</a>
  apa: Knust, S., Ruhm, L., Kuhlmann, A., Meinderink, D., Bürger, J., Lindner, J.,
    de los Arcos de Pedro, M. T., &#38; Grundmeier, G. (2021). In situ backside Raman
    spectroscopy of zinc oxide nanorods in an atmospheric‐pressure dielectric barrier
    discharge plasma. <i>Journal of Raman Spectroscopy</i>, <i>52</i>(7), 1237–1245.
    <a href="https://doi.org/10.1002/jrs.6123">https://doi.org/10.1002/jrs.6123</a>
  bibtex: '@article{Knust_Ruhm_Kuhlmann_Meinderink_Bürger_Lindner_de los Arcos de
    Pedro_Grundmeier_2021, title={In situ backside Raman spectroscopy of zinc oxide
    nanorods in an atmospheric‐pressure dielectric barrier discharge plasma}, volume={52},
    DOI={<a href="https://doi.org/10.1002/jrs.6123">10.1002/jrs.6123</a>}, number={7},
    journal={Journal of Raman Spectroscopy}, publisher={Wiley}, author={Knust, Steffen
    and Ruhm, Lukas and Kuhlmann, Andreas and Meinderink, Dennis and Bürger, Julius
    and Lindner, Jörg and de los Arcos de Pedro, Maria Teresa and Grundmeier, Guido},
    year={2021}, pages={1237–1245} }'
  chicago: 'Knust, Steffen, Lukas Ruhm, Andreas Kuhlmann, Dennis Meinderink, Julius
    Bürger, Jörg Lindner, Maria Teresa de los Arcos de Pedro, and Guido Grundmeier.
    “In Situ Backside Raman Spectroscopy of Zinc Oxide Nanorods in an Atmospheric‐pressure
    Dielectric Barrier Discharge Plasma.” <i>Journal of Raman Spectroscopy</i> 52,
    no. 7 (2021): 1237–45. <a href="https://doi.org/10.1002/jrs.6123">https://doi.org/10.1002/jrs.6123</a>.'
  ieee: 'S. Knust <i>et al.</i>, “In situ backside Raman spectroscopy of zinc oxide
    nanorods in an atmospheric‐pressure dielectric barrier discharge plasma,” <i>Journal
    of Raman Spectroscopy</i>, vol. 52, no. 7, pp. 1237–1245, 2021, doi: <a href="https://doi.org/10.1002/jrs.6123">10.1002/jrs.6123</a>.'
  mla: Knust, Steffen, et al. “In Situ Backside Raman Spectroscopy of Zinc Oxide Nanorods
    in an Atmospheric‐pressure Dielectric Barrier Discharge Plasma.” <i>Journal of
    Raman Spectroscopy</i>, vol. 52, no. 7, Wiley, 2021, pp. 1237–45, doi:<a href="https://doi.org/10.1002/jrs.6123">10.1002/jrs.6123</a>.
  short: S. Knust, L. Ruhm, A. Kuhlmann, D. Meinderink, J. Bürger, J. Lindner, M.T.
    de los Arcos de Pedro, G. Grundmeier, Journal of Raman Spectroscopy 52 (2021)
    1237–1245.
date_created: 2022-11-15T14:08:53Z
date_updated: 2023-01-04T14:51:10Z
department:
- _id: '15'
doi: 10.1002/jrs.6123
intvolume: '        52'
issue: '7'
keyword:
- Spectroscopy
- General Materials Science
language:
- iso: eng
page: 1237-1245
publication: Journal of Raman Spectroscopy
publication_identifier:
  issn:
  - 0377-0486
  - 1097-4555
publication_status: published
publisher: Wiley
status: public
title: In situ backside Raman spectroscopy of zinc oxide nanorods in an atmospheric‐pressure
  dielectric barrier discharge plasma
type: journal_article
user_id: '77496'
volume: 52
year: '2021'
...
---
_id: '19823'
abstract:
- lang: eng
  text: 'Individual grains of chalcopyrite solar cell absorbers can facet in different
    crystallographic directions at their surfaces. To gain a deeper understanding
    of the junction formation in these devices, we correlate variations in the surface
    facet orientation with the defect electronic properties. We use a combined analytical
    approach based on scanning tunneling spectroscopy (STS), scanning electron microscopy,
    and electron back scatter diffraction (EBSD), where we perform these experiments
    on identical surface areas as small as 2 × 2 µm2 with a lateral resolution well
    below 50 nm. The topography of the absorber surfaces indicates two main morphological
    features: micro-faceted, long basalt-like columns and their short nano-faceted
    terminations. Our STS results reveal that the long columns exhibit spectral signatures
    typical for the presence of pronounced oxidation-induced surface dipoles in conjunction
    with an increased density of electronic defect levels. In contrast, the nano-faceted
    terminations of the basalt-like columns are largely passivated in terms of electronic
    defect levels within the band gap region. Corresponding crystallographic data
    based on EBSD experiments show that the surface of the basalt-like columns can
    be assigned to intrinsically polar facet orientations, while the passivated terminations
    are assigned to non-polar planes. Ab-initio calculations suggest that the polar
    surfaces are more prone to oxidation and resulting O-induced defects, in comparison
    to non-polar planes. Our results emphasize the correlation between morphology,
    surface facet orientations and surface electronic properties. Furthermore, this
    work aids in gaining a fundamental understanding of oxidation induced lateral
    inhomogeneities in view of the p-n junction formation in chalcopyrite thin-film
    solar cells.'
author:
- first_name: Amala
  full_name: Elizabeth, Amala
  last_name: Elizabeth
- first_name: Hauke
  full_name: Conradi, Hauke
  last_name: Conradi
- first_name: Sudhir
  full_name: K. Sahoo, Sudhir
  last_name: K. Sahoo
- first_name: Tim
  full_name: Kodalle, Tim
  last_name: Kodalle
- first_name: Christian
  full_name: A. Kaufmann, Christian
  last_name: A. Kaufmann
- first_name: Thomas
  full_name: Kühne, Thomas
  id: '49079'
  last_name: Kühne
- first_name: Hossein
  full_name: Mirhosseini, Hossein
  id: '71051'
  last_name: Mirhosseini
  orcid: https://orcid.org/0000-0001-6179-1545
- first_name: Daniel
  full_name: Abou-Ras, Daniel
  last_name: Abou-Ras
- first_name: Harry
  full_name: Mönig, Harry
  last_name: Mönig
citation:
  ama: Elizabeth A, Conradi H, K. Sahoo S, et al. Correlating facet orientation, defect-level
    density and dipole layer formation at the surface of polycrystalline CuInSe2 thin
    films. <i>Acta Materialia</i>. 2020;200. doi:<a href="https://doi.org/10.1016/j.actamat.2020.09.028">https://doi.org/10.1016/j.actamat.2020.09.028</a>
  apa: Elizabeth, A., Conradi, H., K. Sahoo, S., Kodalle, T., A. Kaufmann, C., Kühne,
    T., … Mönig, H. (2020). Correlating facet orientation, defect-level density and
    dipole layer formation at the surface of polycrystalline CuInSe2 thin films. <i>Acta
    Materialia</i>, <i>200</i>. <a href="https://doi.org/10.1016/j.actamat.2020.09.028">https://doi.org/10.1016/j.actamat.2020.09.028</a>
  bibtex: '@article{Elizabeth_Conradi_K. Sahoo_Kodalle_A. Kaufmann_Kühne_Mirhosseini_Abou-Ras_Mönig_2020,
    title={Correlating facet orientation, defect-level density and dipole layer formation
    at the surface of polycrystalline CuInSe2 thin films}, volume={200}, DOI={<a href="https://doi.org/10.1016/j.actamat.2020.09.028">https://doi.org/10.1016/j.actamat.2020.09.028</a>},
    journal={Acta Materialia}, author={Elizabeth, Amala and Conradi, Hauke and K.
    Sahoo, Sudhir and Kodalle, Tim and A. Kaufmann, Christian and Kühne, Thomas and
    Mirhosseini, Hossein and Abou-Ras, Daniel and Mönig, Harry}, year={2020} }'
  chicago: Elizabeth, Amala, Hauke Conradi, Sudhir K. Sahoo, Tim Kodalle, Christian
    A. Kaufmann, Thomas Kühne, Hossein Mirhosseini, Daniel Abou-Ras, and Harry Mönig.
    “Correlating Facet Orientation, Defect-Level Density and Dipole Layer Formation
    at the Surface of Polycrystalline CuInSe2 Thin Films.” <i>Acta Materialia</i>
    200 (2020). <a href="https://doi.org/10.1016/j.actamat.2020.09.028">https://doi.org/10.1016/j.actamat.2020.09.028</a>.
  ieee: A. Elizabeth <i>et al.</i>, “Correlating facet orientation, defect-level density
    and dipole layer formation at the surface of polycrystalline CuInSe2 thin films,”
    <i>Acta Materialia</i>, vol. 200, 2020.
  mla: Elizabeth, Amala, et al. “Correlating Facet Orientation, Defect-Level Density
    and Dipole Layer Formation at the Surface of Polycrystalline CuInSe2 Thin Films.”
    <i>Acta Materialia</i>, vol. 200, 2020, doi:<a href="https://doi.org/10.1016/j.actamat.2020.09.028">https://doi.org/10.1016/j.actamat.2020.09.028</a>.
  short: A. Elizabeth, H. Conradi, S. K. Sahoo, T. Kodalle, C. A. Kaufmann, T. Kühne,
    H. Mirhosseini, D. Abou-Ras, H. Mönig, Acta Materialia 200 (2020).
date_created: 2020-10-01T09:19:55Z
date_updated: 2022-01-06T06:54:13Z
department:
- _id: '613'
doi: https://doi.org/10.1016/j.actamat.2020.09.028
intvolume: '       200'
keyword:
- Chalcopyrite absorber
- Scanning tunneling spectroscopy
- Electron backscatter diffraction
- Density functional theory
- Surface dipole
language:
- iso: eng
project:
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: Acta Materialia
publication_identifier:
  issn:
  - 1359-6454
status: public
title: Correlating facet orientation, defect-level density and dipole layer formation
  at the surface of polycrystalline CuInSe2 thin films
type: journal_article
user_id: '71692'
volume: 200
year: '2020'
...
---
_id: '41024'
article_number: '034101'
author:
- first_name: Jure
  full_name: Gujt, Jure
  last_name: Gujt
- first_name: Peter
  full_name: Zimmer, Peter
  last_name: Zimmer
- first_name: Frederik
  full_name: Zysk, Frederik
  id: '14757'
  last_name: Zysk
- first_name: Vicky
  full_name: Süß, Vicky
  last_name: Süß
- first_name: Claudia
  full_name: Felser, Claudia
  last_name: Felser
- first_name: Matthias
  full_name: Bauer, Matthias
  id: '47241'
  last_name: Bauer
  orcid: 0000-0002-9294-6076
- first_name: Thomas
  full_name: Kühne, Thomas
  id: '49079'
  last_name: Kühne
citation:
  ama: Gujt J, Zimmer P, Zysk F, et al. Water structure near the surface of Weyl semimetals
    as catalysts in photocatalytic proton reduction. <i>Structural Dynamics</i>. 2020;7(3).
    doi:<a href="https://doi.org/10.1063/4.0000008">10.1063/4.0000008</a>
  apa: Gujt, J., Zimmer, P., Zysk, F., Süß, V., Felser, C., Bauer, M., &#38; Kühne,
    T. (2020). Water structure near the surface of Weyl semimetals as catalysts in
    photocatalytic proton reduction. <i>Structural Dynamics</i>, <i>7</i>(3), Article
    034101. <a href="https://doi.org/10.1063/4.0000008">https://doi.org/10.1063/4.0000008</a>
  bibtex: '@article{Gujt_Zimmer_Zysk_Süß_Felser_Bauer_Kühne_2020, title={Water structure
    near the surface of Weyl semimetals as catalysts in photocatalytic proton reduction},
    volume={7}, DOI={<a href="https://doi.org/10.1063/4.0000008">10.1063/4.0000008</a>},
    number={3034101}, journal={Structural Dynamics}, publisher={AIP Publishing}, author={Gujt,
    Jure and Zimmer, Peter and Zysk, Frederik and Süß, Vicky and Felser, Claudia and
    Bauer, Matthias and Kühne, Thomas}, year={2020} }'
  chicago: Gujt, Jure, Peter Zimmer, Frederik Zysk, Vicky Süß, Claudia Felser, Matthias
    Bauer, and Thomas Kühne. “Water Structure near the Surface of Weyl Semimetals
    as Catalysts in Photocatalytic Proton Reduction.” <i>Structural Dynamics</i> 7,
    no. 3 (2020). <a href="https://doi.org/10.1063/4.0000008">https://doi.org/10.1063/4.0000008</a>.
  ieee: 'J. Gujt <i>et al.</i>, “Water structure near the surface of Weyl semimetals
    as catalysts in photocatalytic proton reduction,” <i>Structural Dynamics</i>,
    vol. 7, no. 3, Art. no. 034101, 2020, doi: <a href="https://doi.org/10.1063/4.0000008">10.1063/4.0000008</a>.'
  mla: Gujt, Jure, et al. “Water Structure near the Surface of Weyl Semimetals as
    Catalysts in Photocatalytic Proton Reduction.” <i>Structural Dynamics</i>, vol.
    7, no. 3, 034101, AIP Publishing, 2020, doi:<a href="https://doi.org/10.1063/4.0000008">10.1063/4.0000008</a>.
  short: J. Gujt, P. Zimmer, F. Zysk, V. Süß, C. Felser, M. Bauer, T. Kühne, Structural
    Dynamics 7 (2020).
date_created: 2023-01-30T17:40:53Z
date_updated: 2023-01-31T08:23:35Z
department:
- _id: '35'
- _id: '306'
doi: 10.1063/4.0000008
intvolume: '         7'
issue: '3'
keyword:
- Spectroscopy
- Condensed Matter Physics
- Instrumentation
- Radiation
language:
- iso: eng
publication: Structural Dynamics
publication_identifier:
  issn:
  - 2329-7778
publication_status: published
publisher: AIP Publishing
status: public
title: Water structure near the surface of Weyl semimetals as catalysts in photocatalytic
  proton reduction
type: journal_article
user_id: '27611'
volume: 7
year: '2020'
...
---
_id: '40580'
abstract:
- lang: eng
  text: <p>A gas sensor comprising of a planar electrode device covered with a thin
    layer of gel polymer electrolyte gave accurate and fast sensing responses for
    oxygen and ammonia detection in both the cathodic and anodic potential regions.</p>
author:
- first_name: Junqiao
  full_name: Lee, Junqiao
  last_name: Lee
- first_name: Ghulam
  full_name: Hussain, Ghulam
  last_name: Hussain
- first_name: Nieves
  full_name: Lopez Salas, Nieves
  id: '98120'
  last_name: Lopez Salas
  orcid: https://orcid.org/0000-0002-8438-9548
- first_name: Douglas R.
  full_name: MacFarlane, Douglas R.
  last_name: MacFarlane
- first_name: Debbie S.
  full_name: Silvester, Debbie S.
  last_name: Silvester
citation:
  ama: Lee J, Hussain G, Lopez Salas N, MacFarlane DR, Silvester DS. Thin films of
    poly(vinylidene fluoride-<i>co</i>-hexafluoropropylene)-ionic liquid mixtures
    as amperometric gas sensing materials for oxygen and ammonia. <i>The Analyst</i>.
    2020;145(5):1915-1924. doi:<a href="https://doi.org/10.1039/c9an02153a">10.1039/c9an02153a</a>
  apa: Lee, J., Hussain, G., Lopez Salas, N., MacFarlane, D. R., &#38; Silvester,
    D. S. (2020). Thin films of poly(vinylidene fluoride-<i>co</i>-hexafluoropropylene)-ionic
    liquid mixtures as amperometric gas sensing materials for oxygen and ammonia.
    <i>The Analyst</i>, <i>145</i>(5), 1915–1924. <a href="https://doi.org/10.1039/c9an02153a">https://doi.org/10.1039/c9an02153a</a>
  bibtex: '@article{Lee_Hussain_Lopez Salas_MacFarlane_Silvester_2020, title={Thin
    films of poly(vinylidene fluoride-<i>co</i>-hexafluoropropylene)-ionic liquid
    mixtures as amperometric gas sensing materials for oxygen and ammonia}, volume={145},
    DOI={<a href="https://doi.org/10.1039/c9an02153a">10.1039/c9an02153a</a>}, number={5},
    journal={The Analyst}, publisher={Royal Society of Chemistry (RSC)}, author={Lee,
    Junqiao and Hussain, Ghulam and Lopez Salas, Nieves and MacFarlane, Douglas R.
    and Silvester, Debbie S.}, year={2020}, pages={1915–1924} }'
  chicago: 'Lee, Junqiao, Ghulam Hussain, Nieves Lopez Salas, Douglas R. MacFarlane,
    and Debbie S. Silvester. “Thin Films of Poly(Vinylidene Fluoride-<i>Co</i>-Hexafluoropropylene)-Ionic
    Liquid Mixtures as Amperometric Gas Sensing Materials for Oxygen and Ammonia.”
    <i>The Analyst</i> 145, no. 5 (2020): 1915–24. <a href="https://doi.org/10.1039/c9an02153a">https://doi.org/10.1039/c9an02153a</a>.'
  ieee: 'J. Lee, G. Hussain, N. Lopez Salas, D. R. MacFarlane, and D. S. Silvester,
    “Thin films of poly(vinylidene fluoride-<i>co</i>-hexafluoropropylene)-ionic liquid
    mixtures as amperometric gas sensing materials for oxygen and ammonia,” <i>The
    Analyst</i>, vol. 145, no. 5, pp. 1915–1924, 2020, doi: <a href="https://doi.org/10.1039/c9an02153a">10.1039/c9an02153a</a>.'
  mla: Lee, Junqiao, et al. “Thin Films of Poly(Vinylidene Fluoride-<i>Co</i>-Hexafluoropropylene)-Ionic
    Liquid Mixtures as Amperometric Gas Sensing Materials for Oxygen and Ammonia.”
    <i>The Analyst</i>, vol. 145, no. 5, Royal Society of Chemistry (RSC), 2020, pp.
    1915–24, doi:<a href="https://doi.org/10.1039/c9an02153a">10.1039/c9an02153a</a>.
  short: J. Lee, G. Hussain, N. Lopez Salas, D.R. MacFarlane, D.S. Silvester, The
    Analyst 145 (2020) 1915–1924.
date_created: 2023-01-27T16:21:25Z
date_updated: 2023-01-27T16:29:21Z
doi: 10.1039/c9an02153a
intvolume: '       145'
issue: '5'
keyword:
- Electrochemistry
- Spectroscopy
- Environmental Chemistry
- Biochemistry
- Analytical Chemistry
language:
- iso: eng
page: 1915-1924
publication: The Analyst
publication_identifier:
  issn:
  - 0003-2654
  - 1364-5528
publication_status: published
publisher: Royal Society of Chemistry (RSC)
status: public
title: Thin films of poly(vinylidene fluoride-<i>co</i>-hexafluoropropylene)-ionic
  liquid mixtures as amperometric gas sensing materials for oxygen and ammonia
type: journal_article
user_id: '98120'
volume: 145
year: '2020'
...
---
_id: '41822'
author:
- first_name: Nico
  full_name: Carl, Nico
  last_name: Carl
- first_name: Wenke
  full_name: Müller, Wenke
  last_name: Müller
- first_name: Ralf
  full_name: Schweins, Ralf
  last_name: Schweins
- first_name: Klaus
  full_name: Huber, Klaus
  id: '237'
  last_name: Huber
citation:
  ama: Carl N, Müller W, Schweins R, Huber K. Controlling Self-Assembly with Light
    and Temperature. <i>Langmuir</i>. 2019;36(1):223-231. doi:<a href="https://doi.org/10.1021/acs.langmuir.9b03040">10.1021/acs.langmuir.9b03040</a>
  apa: Carl, N., Müller, W., Schweins, R., &#38; Huber, K. (2019). Controlling Self-Assembly
    with Light and Temperature. <i>Langmuir</i>, <i>36</i>(1), 223–231. <a href="https://doi.org/10.1021/acs.langmuir.9b03040">https://doi.org/10.1021/acs.langmuir.9b03040</a>
  bibtex: '@article{Carl_Müller_Schweins_Huber_2019, title={Controlling Self-Assembly
    with Light and Temperature}, volume={36}, DOI={<a href="https://doi.org/10.1021/acs.langmuir.9b03040">10.1021/acs.langmuir.9b03040</a>},
    number={1}, journal={Langmuir}, publisher={American Chemical Society (ACS)}, author={Carl,
    Nico and Müller, Wenke and Schweins, Ralf and Huber, Klaus}, year={2019}, pages={223–231}
    }'
  chicago: 'Carl, Nico, Wenke Müller, Ralf Schweins, and Klaus Huber. “Controlling
    Self-Assembly with Light and Temperature.” <i>Langmuir</i> 36, no. 1 (2019): 223–31.
    <a href="https://doi.org/10.1021/acs.langmuir.9b03040">https://doi.org/10.1021/acs.langmuir.9b03040</a>.'
  ieee: 'N. Carl, W. Müller, R. Schweins, and K. Huber, “Controlling Self-Assembly
    with Light and Temperature,” <i>Langmuir</i>, vol. 36, no. 1, pp. 223–231, 2019,
    doi: <a href="https://doi.org/10.1021/acs.langmuir.9b03040">10.1021/acs.langmuir.9b03040</a>.'
  mla: Carl, Nico, et al. “Controlling Self-Assembly with Light and Temperature.”
    <i>Langmuir</i>, vol. 36, no. 1, American Chemical Society (ACS), 2019, pp. 223–31,
    doi:<a href="https://doi.org/10.1021/acs.langmuir.9b03040">10.1021/acs.langmuir.9b03040</a>.
  short: N. Carl, W. Müller, R. Schweins, K. Huber, Langmuir 36 (2019) 223–231.
date_created: 2023-02-06T12:15:47Z
date_updated: 2023-02-06T12:23:04Z
department:
- _id: '314'
doi: 10.1021/acs.langmuir.9b03040
intvolume: '        36'
issue: '1'
keyword:
- Electrochemistry
- Spectroscopy
- Surfaces and Interfaces
- Condensed Matter Physics
- General Materials Science
language:
- iso: eng
page: 223-231
publication: Langmuir
publication_identifier:
  issn:
  - 0743-7463
  - 1520-5827
publication_status: published
publisher: American Chemical Society (ACS)
status: public
title: Controlling Self-Assembly with Light and Temperature
type: journal_article
user_id: '237'
volume: 36
year: '2019'
...
---
_id: '41828'
author:
- first_name: Benjamin
  full_name: Hämisch, Benjamin
  last_name: Hämisch
- first_name: Anne
  full_name: Büngeler, Anne
  last_name: Büngeler
- first_name: Charlotte
  full_name: Kielar, Charlotte
  last_name: Kielar
- first_name: Adrian
  full_name: Keller, Adrian
  last_name: Keller
- first_name: Oliver
  full_name: Strube, Oliver
  last_name: Strube
- first_name: Klaus
  full_name: Huber, Klaus
  id: '237'
  last_name: Huber
citation:
  ama: Hämisch B, Büngeler A, Kielar C, Keller A, Strube O, Huber K. Self-Assembly
    of Fibrinogen in Aqueous, Thrombin-Free Solutions of Variable Ionic Strengths.
    <i>Langmuir</i>. 2019;35(37):12113-12122. doi:<a href="https://doi.org/10.1021/acs.langmuir.9b01515">10.1021/acs.langmuir.9b01515</a>
  apa: Hämisch, B., Büngeler, A., Kielar, C., Keller, A., Strube, O., &#38; Huber,
    K. (2019). Self-Assembly of Fibrinogen in Aqueous, Thrombin-Free Solutions of
    Variable Ionic Strengths. <i>Langmuir</i>, <i>35</i>(37), 12113–12122. <a href="https://doi.org/10.1021/acs.langmuir.9b01515">https://doi.org/10.1021/acs.langmuir.9b01515</a>
  bibtex: '@article{Hämisch_Büngeler_Kielar_Keller_Strube_Huber_2019, title={Self-Assembly
    of Fibrinogen in Aqueous, Thrombin-Free Solutions of Variable Ionic Strengths},
    volume={35}, DOI={<a href="https://doi.org/10.1021/acs.langmuir.9b01515">10.1021/acs.langmuir.9b01515</a>},
    number={37}, journal={Langmuir}, publisher={American Chemical Society (ACS)},
    author={Hämisch, Benjamin and Büngeler, Anne and Kielar, Charlotte and Keller,
    Adrian and Strube, Oliver and Huber, Klaus}, year={2019}, pages={12113–12122}
    }'
  chicago: 'Hämisch, Benjamin, Anne Büngeler, Charlotte Kielar, Adrian Keller, Oliver
    Strube, and Klaus Huber. “Self-Assembly of Fibrinogen in Aqueous, Thrombin-Free
    Solutions of Variable Ionic Strengths.” <i>Langmuir</i> 35, no. 37 (2019): 12113–22.
    <a href="https://doi.org/10.1021/acs.langmuir.9b01515">https://doi.org/10.1021/acs.langmuir.9b01515</a>.'
  ieee: 'B. Hämisch, A. Büngeler, C. Kielar, A. Keller, O. Strube, and K. Huber, “Self-Assembly
    of Fibrinogen in Aqueous, Thrombin-Free Solutions of Variable Ionic Strengths,”
    <i>Langmuir</i>, vol. 35, no. 37, pp. 12113–12122, 2019, doi: <a href="https://doi.org/10.1021/acs.langmuir.9b01515">10.1021/acs.langmuir.9b01515</a>.'
  mla: Hämisch, Benjamin, et al. “Self-Assembly of Fibrinogen in Aqueous, Thrombin-Free
    Solutions of Variable Ionic Strengths.” <i>Langmuir</i>, vol. 35, no. 37, American
    Chemical Society (ACS), 2019, pp. 12113–22, doi:<a href="https://doi.org/10.1021/acs.langmuir.9b01515">10.1021/acs.langmuir.9b01515</a>.
  short: B. Hämisch, A. Büngeler, C. Kielar, A. Keller, O. Strube, K. Huber, Langmuir
    35 (2019) 12113–12122.
date_created: 2023-02-06T12:30:54Z
date_updated: 2023-02-06T12:39:16Z
department:
- _id: '314'
doi: 10.1021/acs.langmuir.9b01515
intvolume: '        35'
issue: '37'
keyword:
- Electrochemistry
- Spectroscopy
- Surfaces and Interfaces
- Condensed Matter Physics
- General Materials Science
language:
- iso: eng
page: 12113-12122
publication: Langmuir
publication_identifier:
  issn:
  - 0743-7463
  - 1520-5827
publication_status: published
publisher: American Chemical Society (ACS)
status: public
title: Self-Assembly of Fibrinogen in Aqueous, Thrombin-Free Solutions of Variable
  Ionic Strengths
type: journal_article
user_id: '237'
volume: 35
year: '2019'
...
---
_id: '63969'
abstract:
- lang: eng
  text: A number of Ir-N-heterocyclic carbene (Ir-NHC) complexes with asymmetric N-heterocyclic
    carbene (NHC) ligands have been prepared and examined for signal amplification
    by reversible exchange (SABRE). Pyridine was chosen as model compound for hyperpolarization
    experiments. This substrate was examined in a solvent mixture using several Ir-NHC
    complexes, which differ in their NHC ligands. The SABRE polarization was created
    at 6mT and the H-1 nuclear magnetic resonancesignals were detected at 7T. We show
    that asymmetric NHC ligands, because of their favorable chemistry, can adapt the
    SABREactive complexes to different chemical scenarios.
author:
- first_name: S.
  full_name: Hadjiali, S.
  last_name: Hadjiali
- first_name: R.
  full_name: Savka, R.
  last_name: Savka
- first_name: M.
  full_name: Plaumann, M.
  last_name: Plaumann
- first_name: U.
  full_name: Bommerich, U.
  last_name: Bommerich
- first_name: S.
  full_name: Bothe, S.
  last_name: Bothe
- first_name: Torsten
  full_name: Gutmann, Torsten
  id: '118165'
  last_name: Gutmann
- first_name: T.
  full_name: Ratajczyk, T.
  last_name: Ratajczyk
- first_name: J.
  full_name: Bernarding, J.
  last_name: Bernarding
- first_name: H. H.
  full_name: Limbach, H. H.
  last_name: Limbach
- first_name: H.
  full_name: Plenio, H.
  last_name: Plenio
- first_name: G.
  full_name: Buntkowsky, G.
  last_name: Buntkowsky
citation:
  ama: Hadjiali S, Savka R, Plaumann M, et al. Substituent Influences on the NMR Signal
    Amplification of Ir Complexes with Heterocyclic Carbene Ligands. <i>Applied Magnetic
    Resonance</i>. 2019;50(7):895–902. doi:<a href="https://doi.org/10.1007/s00723-019-01115-x">10.1007/s00723-019-01115-x</a>
  apa: Hadjiali, S., Savka, R., Plaumann, M., Bommerich, U., Bothe, S., Gutmann, T.,
    Ratajczyk, T., Bernarding, J., Limbach, H. H., Plenio, H., &#38; Buntkowsky, G.
    (2019). Substituent Influences on the NMR Signal Amplification of Ir Complexes
    with Heterocyclic Carbene Ligands. <i>Applied Magnetic Resonance</i>, <i>50</i>(7),
    895–902. <a href="https://doi.org/10.1007/s00723-019-01115-x">https://doi.org/10.1007/s00723-019-01115-x</a>
  bibtex: '@article{Hadjiali_Savka_Plaumann_Bommerich_Bothe_Gutmann_Ratajczyk_Bernarding_Limbach_Plenio_et
    al._2019, title={Substituent Influences on the NMR Signal Amplification of Ir
    Complexes with Heterocyclic Carbene Ligands}, volume={50}, DOI={<a href="https://doi.org/10.1007/s00723-019-01115-x">10.1007/s00723-019-01115-x</a>},
    number={7}, journal={Applied Magnetic Resonance}, author={Hadjiali, S. and Savka,
    R. and Plaumann, M. and Bommerich, U. and Bothe, S. and Gutmann, Torsten and Ratajczyk,
    T. and Bernarding, J. and Limbach, H. H. and Plenio, H. and et al.}, year={2019},
    pages={895–902} }'
  chicago: 'Hadjiali, S., R. Savka, M. Plaumann, U. Bommerich, S. Bothe, Torsten Gutmann,
    T. Ratajczyk, et al. “Substituent Influences on the NMR Signal Amplification of
    Ir Complexes with Heterocyclic Carbene Ligands.” <i>Applied Magnetic Resonance</i>
    50, no. 7 (2019): 895–902. <a href="https://doi.org/10.1007/s00723-019-01115-x">https://doi.org/10.1007/s00723-019-01115-x</a>.'
  ieee: 'S. Hadjiali <i>et al.</i>, “Substituent Influences on the NMR Signal Amplification
    of Ir Complexes with Heterocyclic Carbene Ligands,” <i>Applied Magnetic Resonance</i>,
    vol. 50, no. 7, pp. 895–902, 2019, doi: <a href="https://doi.org/10.1007/s00723-019-01115-x">10.1007/s00723-019-01115-x</a>.'
  mla: Hadjiali, S., et al. “Substituent Influences on the NMR Signal Amplification
    of Ir Complexes with Heterocyclic Carbene Ligands.” <i>Applied Magnetic Resonance</i>,
    vol. 50, no. 7, 2019, pp. 895–902, doi:<a href="https://doi.org/10.1007/s00723-019-01115-x">10.1007/s00723-019-01115-x</a>.
  short: S. Hadjiali, R. Savka, M. Plaumann, U. Bommerich, S. Bothe, T. Gutmann, T.
    Ratajczyk, J. Bernarding, H.H. Limbach, H. Plenio, G. Buntkowsky, Applied Magnetic
    Resonance 50 (2019) 895–902.
date_created: 2026-02-07T15:40:18Z
date_updated: 2026-02-17T16:17:34Z
doi: 10.1007/s00723-019-01115-x
extern: '1'
intvolume: '        50'
issue: '7'
keyword:
- dynamic nuclear-polarization
- hyperpolarization
- enhancement
- hydrogen induced polarization
- olefin-metathesis catalysts
- parahydrogen-induced polarization
- peptides
- Physics
- sabre
- spectroscopy
language:
- iso: eng
page: 895–902
publication: Applied Magnetic Resonance
publication_identifier:
  issn:
  - 1613-7507
status: public
title: Substituent Influences on the NMR Signal Amplification of Ir Complexes with
  Heterocyclic Carbene Ligands
type: journal_article
user_id: '100715'
volume: 50
year: '2019'
...
