Prof. Dr. Roswitha Zeis

Professur für Elektrische Wasserstoffsysteme

Department Elektrotechnik-Elektronik-Informationstechnik (EEI)
Lehrstuhl für Elektrische Energietechnik

Raum 02.230 ( 91058 Erlangen, Cauerstr. 9)
Fürther Str. 250
90429 Nürnberg
Deutschland

Telefon: 0913185-27789
Faxnummer: +49913185-27658
E-Mail: roswitha.zeis@fau.de
Webseite: https://www.leam.tf.fau.de/person/prof-dr-roswitha-zeis/

Werdegang:

2023: Berufung an die Friedrich-Alexander-Universität Erlangen-Nürnberg – Professur für elektrische Wasserstoffsysteme
2020: Gruppenleiterin, Karlsruher Institut für Technologie, Helmholtz-Institut Ulm, Ulm
2012: Helmholtz Nachwuchsgruppenleiterin, Karlsruher Institut für Technologie, Helmholtz-Institut Ulm, Ulm
2009: Wissenschaftliche Mitarbeiterin, Forschungszentrum Jülich GmbH, Jülich
2005: Postdoktorandin, Johns Hopkins University, Baltimore, USA, Massachusetts Institute of Technology, Cambridge, Northeastern University, Boston, USA
2005: Promotion Bell Laboratories (Murray Hill, New Jersey, USA) / Universität Konstanz
2001: Abschluss des Studiums der Physik an der Universität Konstanz

Forschung:

Unsere Gruppe forscht an Hochtemperatur-PEM-Brennstoffzellen (HT-PEMFCs) und Elektrochemischen Wasserstoffpumpen (EHPs), die auf Phosphorsäure gedopten Membranen basieren. Die Verwendung von Phosphorsäure als Elektrolyt ermöglicht den Betrieb der Zellen bei Temperaturen zwischen 160 °C und 200 °C und erhöht die Toleranz gegenüber üblichen Gasverunreinigungen wie Kohlenmonoxid (CO). Wir stellen Membran-Elektroden-Einheiten (MEAs) her und charakterisieren ihre Leistungen in Einzelzellentests.

Unsere Gruppe arbeitet an Vanadium-Redox-Flow-Batterien (VRFBs), einer vielversprechenden Technologie für die Energiespeicherung in großem Maßstab. Wir designen und entwickeln neue Elektrodenmaterialien auf Kohlenstoffbasis und untersuchen diese mit einem multimodalen Charakterisierungsansatz. Unsere Expertise ist im Bereich der elektrochemischen Charakterisierung und der röntgenbasierten Bildgebung mit Synchrotronstrahlung.

Die Gasdiffusionselektrode (GDE) ist die entscheidende Komponente bei einer Vielzahl von grünen Technologien, wie Brennstoffzellen, Elektrolyseure und Metall-Luft Batterien. Unsere Gruppe verwendet einen neuartigen Halbzellen Messaufbau, um die Leistung von GDEs zu untersuchen. Der derzeitige Schwerpunkt unserer Studien ist die Sauerstoffreduktionsreaktion (ORR) in alkalischen Medien mit dem Ziel, aktive und stabile Katalysatoren zu entwickeln.

Auszeichnungen:

2024: Carla Marchfelder erhält den Dr. Barbara Mez-Starck-Preis

2023: Alexander Rampf erhält den Dr. Barbara Mez-Starck-Preis

2023: Monja Schilling ist Gewinnerin des Ideenwettbewerbs Energie-Campus

2023: Die University of Toronto verleiht Professorin Roswitha Zeis eine Ehrenprofessur.

2022: Monja Schilling erhält den Dr. Barbara Mez-Starck-Preis

2022: Michael Braig gewinnt den Posterpreis auf der Gordon Conference for Fuel Cell mit seinem Paper „Distribution of Relaxation Times Analysis of Electrochemical Hydrogen Pump Impedance Spectra“

2020: Kerstin Köble erhält den Dr. Barbara Mez-Starck-Preis (bester Masterabschluss in Chemie an der Universität Ulm)

2020: Kerstin Köble erhält den Preis des Arbeitskreises Kohlenstoff für ihre herausragende Masterarbeit

Veröffentlichungen:

2024

Kutter M., Greve C., Maier M., Schilling M., Mauel A., Hilgert A., Hoffmann H., Hagemeier W., Rosin A., Muggli M., Zeis R., Senker J., Böhm T., Herzig EM., Gerdes T., Roth C.:
Recycling of perfluorosulfonic acid-based membranes and their Re-application in PEM fuel cells
In: Journal of Membrane Science 693 (2024), Art.Nr.: 122370
ISSN: 1873-3123
DOI: 10.1016/j.memsci.2023.122370
Köble K., Ershov A., Duan K., Schilling M., Rampf A., Cecilia A., Faragó T., Zuber M., Baumbach T., Zeis R.:
Insights into the hydrogen evolution reaction in vanadium redox flow batteries: A synchrotron radiation based X-ray imaging study
In: Journal of Energy Chemistry 91 (2024), S. 132-144
ISSN: 2095-4956
DOI: 10.1016/j.jechem.2023.12.010
Liu C., Luo M., Zeis R., Chuang PYA., Zhang R., Du S., Sui PC.:
Fabrication of catalyst layer for proton exchange membrane water electrolyzer: I. Effects of dispersion on particle size distribution and rheological behavior
In: International Journal of Hydrogen Energy 52 (2024), S. 1143-1154
ISSN: 0360-3199
DOI: 10.1016/j.ijhydene.2023.08.154
Peng Q., Yang Y., Xu H., Schilling M., Shah A., Zeis R., Sui PC., Zhu X., Li J., Liao Q.:
Electrode microstructure design to improve effective utilization of Fe-N/C catalysts towards oxygen reduction reaction process
In: Chemical Engineering Journal 490 (2024), Art.Nr.: 151569
ISSN: 1385-8947
DOI: 10.1016/j.cej.2024.151569
Schilling M., Ershov A., Debastiani R., Duan K., Köble K., Scherer S., Lan L., Rampf A., Faragó T., Zuber M., Cecilia A., Liu S., Liu C., Baumbach T., Li J., Sui PC., Zeis R.:
Bamboo charcoal as electrode material for vanadium redox flow batteries
In: Energy Advances 3 (2024), S. 997-1008
ISSN: 2753-1457
DOI: 10.1039/d4ya00166d
Schilling M., Zeis R.:
Investigating the V(II)/V(III) electrode reaction in a vanadium redox flow battery – A distribution of relaxation times analysis
In: Electrochimica Acta 477 (2024), Art.Nr.: 143771
ISSN: 0013-4686
DOI: 10.1016/j.electacta.2024.143771

2023

Braig M., Deissler NH., Lüdeking I., Regnet F., Bevilacqua N., Zeis R.:
FIB-SEM and ToF-SIMS Analysis of High-Temperature PEM Fuel Cell Electrodes
In: Advanced Materials Interfaces 10 (2023), Art.Nr.: 2202430
ISSN: 2196-7350
DOI: 10.1002/admi.202202430
Braig M., Zeis R.:
Distribution of relaxation times analysis of electrochemical hydrogen pump impedance spectra
In: Journal of Power Sources 576 (2023), Art.Nr.: 233203
ISSN: 0378-7753
DOI: 10.1016/j.jpowsour.2023.233203
Köble K., Jaugstetter M., Schilling M., Braig M., Diemant T., Tschulik K., Zeis R.:
Multimodal characterization of carbon electrodes' thermal activation for vanadium redox flow batteries
In: Journal of Power Sources 569 (2023), Art.Nr.: 233010
ISSN: 0378-7753
DOI: 10.1016/j.jpowsour.2023.233010
Köble K., Schilling M., Eifert L., Bevilacqua N., Fahy KF., Atanassov P., Bazylak A., Zeis R.:
Revealing the Multifaceted Impacts of Electrode Modifications for Vanadium Redox Flow Battery Electrodes
In: ACS Applied Materials and Interfaces (2023)
ISSN: 1944-8244
DOI: 10.1021/acsami.3c07940
Rampf A., Braig M., Passerini S., Zeis R.:
The Oxygen Reduction Reaction on Pt and Ag Catalysts in Alkaline Media in Rrde and Half-Cell Setups
In: ECS Meetings Abstracts MA2023-02 (2023), S. 2040-2040
ISSN: 2151-2043
DOI: 10.1149/MA2023-02412040mtgabs
Schilling M., Eifert L., Köble K., Jaugstetter M., Bevilacqua N., Fahy KF., Tschulik K., Bazylak A., Zeis R.:
Investigating the Influence of Treatments on Carbon Felts for Vanadium Redox Flow Batteries
In: Chemsuschem (2023)
ISSN: 1864-5631
DOI: 10.1002/cssc.202301063
Zeis R.:
Radiography and Tomography
In: Christina Roth, Jens Noack, Maria Skyllas-Kazacos (Hrsg.): Flow Batteries: From Fundamentals to Applications, Volume 2, Wiley‐VCH, 2023, S. 263-280
ISBN: 9783527832767
DOI: 10.1002/9783527832767.ch12

2022

Duan K., Zeis R., Sui P.:
Pore-scale modelling of reconstructed catalyst layer for high-temperature proton-exchange membrane fuel cell 高温质子交换膜燃料电池催化层孔尺度模拟
In: Chongqing Daxue Xuebao/Journal of Chongqing University 45 (2022), S. 34-43
ISSN: 1000-582X
DOI: 10.11835/j.issn.1000-582X.2021.111
Schilling M., Braig M., Köble K., Zeis R.:
Investigating the V(IV)/V(V) electrode reaction in a vanadium redox flow battery – A distribution of relaxation times analysis
In: Electrochimica Acta 430 (2022), Art.Nr.: 141058
ISSN: 0013-4686
DOI: 10.1016/j.electacta.2022.141058
Xiao L., Bian M., Zhu L., Duan K., Leng W., Zeis R., Sui PC., Zhang H.:
High-density and low-density gas diffusion layers for proton exchange membrane fuel cells: Comparison of mechanical and transport properties
In: International Journal of Hydrogen Energy 47 (2022), S. 22532-22544
ISSN: 0360-3199
DOI: 10.1016/j.ijhydene.2022.05.092
Xiao L., Yin Z., Bian M., Bevilacqua N., Zeis R., Yuan J., Sui PC.:
Microstructure reconstruction using fiber tracking technique and pore-scale simulations of heterogeneous gas diffusion layer
In: International Journal of Hydrogen Energy 47 (2022), S. 20218-20231
ISSN: 0360-3199
DOI: 10.1016/j.ijhydene.2022.04.143
Xiao L., Zhu L., Clökler C., Grünzweig A., Wilhelm F., Scholta J., Zeis R., Shen ZG., Luo M., Sui PC.:
Experimental validation of pore-scale models for gas diffusion layers
In: Journal of Power Sources 536 (2022), Art.Nr.: 231515
ISSN: 0378-7753
DOI: 10.1016/j.jpowsour.2022.231515

2021

Balakrishnan M., Shrestha P., Lee C., Ge N., Fahy KF., Messerschmidt M., Scholta J., Eifert L., Maibach J., Zeis R., Hatton BD., Bazylak A.:
Degradation Characteristics of Electrospun Gas Diffusion Layers with Custom Pore Structures for Polymer Electrolyte Membrane Fuel Cells
In: ACS Applied Materials and Interfaces 13 (2021), S. 2414-2427
ISSN: 1944-8244
DOI: 10.1021/acsami.0c15324
Bevilacqua N., Asset T., Schmid MA., Markötter H., Manke I., Atanassov P., Zeis R.:
Impact of catalyst layer morphology on the operation of high temperature PEM fuel cells
In: Journal of Power Sources Advances 7 (2021), Art.Nr.: 100042
ISSN: 2666-2485
DOI: 10.1016/j.powera.2020.100042
Duan K., Zhu L., Li M., Xiao L., Bevilacqua N., Eifert L., Manke I., Markötter H., Zhang R., Zeis R., Sui PC.:
Multiphase and pore scale modeling on catalyst layer of high-temperature polymer electrolyte membrane fuel cell
In: Journal of The Electrochemical Society 168 (2021), Art.Nr.: 054521
ISSN: 0013-4651
DOI: 10.1149/1945-7111/abff03
Köble K., Eifert L., Bevilacqua N., Fahy KF., Bazylak A., Zeis R.:
Synchrotron X-Ray radiography of vanadium redox flow batteries – Time and spatial resolved electrolyte flow in porous carbon electrodes
In: Journal of Power Sources 492 (2021), Art.Nr.: 229660
ISSN: 0378-7753
DOI: 10.1016/j.jpowsour.2021.229660
Pimperl N., Bevilacqua N., Schmid MA., Loichet Torres PA., El-Sayed HA., Zeis R., Zeyer KP.:
Nitrogen-functionalized carbon-supported Pt catalysts implemented in high-temperature polymer electrolyte membrane fuel cell
In: Journal of Power Sources 507 (2021), Art.Nr.: 229971
ISSN: 0378-7753
DOI: 10.1016/j.jpowsour.2021.229971
Zhang E., Fulik N., Zhang H., Bevilacqua N., Zeis R., Xu F., Brunner E., Kaskel S.:
NMR analysis of phosphoric acid distribution in porous fuel cell catalysts
In: Chemical Communications 57 (2021), S. 2547-2550
ISSN: 1359-7345
DOI: 10.1039/d0cc07738k
Zhang H., Zhu L., Harandi HB., Duan K., Zeis R., Sui PC., Chuang PYA.:
Microstructure reconstruction of the gas diffusion layer and analyses of the anisotropic transport properties
In: Energy Conversion and Management 241 (2021), Art.Nr.: 114293
ISSN: 0196-8904
DOI: 10.1016/j.enconman.2021.114293

2020

Balakrishnan M., Shrestha P., Ge N., Lee C., Fahy KF., Zeis R., Schulz VP., Hatton BD., Bazylak A.:
Designing Tailored Gas Diffusion Layers with Pore Size Gradients via Electrospinning for Polymer Electrolyte Membrane Fuel Cells
In: ACS Applied Energy Materials 3 (2020), S. 2695-2707
ISSN: 2574-0962
DOI: 10.1021/acsaem.9b02371
Bevilacqua N., Schmid MA., Zeis R.:
Understanding the role of the anode on the polarization losses in high-temperature polymer electrolyte membrane fuel cells using the distribution of relaxation times analysis
In: Journal of Power Sources 471 (2020), Art.Nr.: 228469
ISSN: 0378-7753
DOI: 10.1016/j.jpowsour.2020.228469
Delikaya Ö., Bevilacqua N., Eifert L., Kunz U., Zeis R., Roth C.:
Porous electrospun carbon nanofibers network as an integrated electrode@gas diffusion layer for high temperature polymer electrolyte membrane fuel cells
In: Electrochimica Acta 345 (2020), Art.Nr.: 136192
ISSN: 0013-4686
DOI: 10.1016/j.electacta.2020.136192
Eifert L., Bevilacqua N., Köble K., Fahy K., Xiao L., Li M., Duan K., Bazylak A., Sui PC., Zeis R.:
Synchrotron X-ray Radiography and Tomography of Vanadium Redox Flow Batteries—Cell Design, Electrolyte Flow Geometry, and Gas Bubble Formation
In: Chemsuschem 13 (2020), S. 3154-3165
ISSN: 1864-5631
DOI: 10.1002/cssc.202000541
Eifert L., Jusys Z., Behm RJ., Zeis R.:
Side reactions and stability of pre-treated carbon felt electrodes for vanadium redox flow batteries: A DEMS study
In: Carbon 158 (2020), S. 580-587
ISSN: 0008-6223
DOI: 10.1016/j.carbon.2019.11.029
Halter J., Bevilacqua N., Zeis R., Schmidt TJ., Büchi FN.:
The impact of the catalyst layer structure on phosphoric acid migration in HT-PEFC – An operando X-ray tomographic microscopy study
In: Journal of Electroanalytical Chemistry 859 (2020), Art.Nr.: 113832
ISSN: 1572-6657
DOI: 10.1016/j.jelechem.2020.113832
Li M., Bevilacqua N., Zhu L., Leng W., Duan K., Xiao L., Zeis R., Sui PC.:
Mesoscopic modeling and characterization of the porous electrodes for vanadium redox flow batteries
In: Journal of Energy Storage 32 (2020), Art.Nr.: 101782
ISSN: 2352-152X
DOI: 10.1016/j.est.2020.101782
Schneider J., Tichter T., Khadke P., Zeis R., Roth C.:
Deconvolution of electrochemical impedance data for the monitoring of electrode degradation in VRFB
In: Electrochimica Acta 336 (2020), Art.Nr.: 135510
ISSN: 0013-4686
DOI: 10.1016/j.electacta.2019.135510
Xiao L., Luo M., Zhu L., Duan K., Bevilacqua N., Eifert L., Zeis R., Sui PC.:
Pore-Scale Characterization and Simulation of Porous Electrode Material for Vanadium Redox Flow Battery: Effects of Compression on Transport Properties
In: Journal of The Electrochemical Society 167 (2020), Art.Nr.: 110545
ISSN: 0013-4651
DOI: 10.1149/1945-7111/aba4e3
Xiao L., Luo M., Zhu L., Duan K., Leng W., Zeis R., Sui B.:
Solid mechanical simulation and pore-scale modelling of reconstructed carbon felt for vanadium redox flow battery 重构全钒液流电池碳毡力学仿真及孔尺度模拟
In: Chongqing Daxue Xuebao/Journal of Chongqing University 43 (2020), S. 1-10
ISSN: 1000-582X
DOI: 10.11835/j.issn.1000-582X.2020.08.001

2019

Banerjee R., Bevilacqua N., Eifert L., Zeis R.:
Characterization of carbon felt electrodes for vanadium redox flow batteries – A pore network modeling approach
In: Journal of Energy Storage 21 (2019), S. 163-171
ISSN: 2352-152X
DOI: 10.1016/j.est.2018.11.014
Banerjee R., Bevilacqua N., Mohseninia A., Wiedemann B., Wilhelm F., Scholta J., Zeis R.:
Carbon felt electrodes for redox flow battery: Impact of compression on transport properties
In: Journal of Energy Storage 26 (2019), Art.Nr.: 100997
ISSN: 2352-152X
DOI: 10.1016/j.est.2019.100997
Bevilacqua N., Eifert L., Banerjee R., Köble K., Faragó T., Zuber M., Bazylak A., Zeis R.:
Visualization of electrolyte flow in vanadium redox flow batteries using synchrotron X-ray radiography and tomography – Impact of electrolyte species and electrode compression
In: Journal of Power Sources 439 (2019), Art.Nr.: 227071
ISSN: 0378-7753
DOI: 10.1016/j.jpowsour.2019.227071
Fetyan A., Schneider J., Schnucklake M., El-Nagar GA., Banerjee R., Bevilacqua N., Zeis R., Roth C.:
Comparison of Electrospun Carbon−Carbon Composite and Commercial Felt for Their Activity and Electrolyte Utilization in Vanadium Redox Flow Batteries
In: ChemElectroChem 6 (2019), S. 6-
ISSN: 2196-0216
DOI: 10.1002/celc.201801706
Schnucklake M., Eifert L., Schneider J., Zeis R., Roth C.:
Porous N- and S-doped carbon-carbon composite electrodes by soft-templating for redox flow batteries
In: Beilstein Journal of Nanotechnology 10 (2019), S. 1131-1139
ISSN: 2190-4286
DOI: 10.3762/BJNANO.10.113
Xiao L., Luo M., Zhang H., Zeis R., Sui PC.:
Solid mechanics simulation of reconstructed gas diffusion layers for PEMFCs
In: Journal of The Electrochemical Society 166 (2019), S. F377-F385
ISSN: 0013-4651
DOI: 10.1149/2.0421906jes

2018

Bevilacqua N., Gokhale R., Serov A., Banerjee R., Schmid M., Atanassov P., Zeis R.:
Comparing novel PGM-free, platinum, and alloyed platinum catalysts for HT-PEMFCs
Symposium on Polymer Electrolyte Fuel Cells and Electrolyzers 18, PEFC and E 2018 - AiMES 2018, ECS and SMEQ Joint International Meeting (Cancun, MEX, 30. September 2018 - 4. Oktober 2018)
In: D.J. Jones, H. Gasteiger, H. Uchida, T.J. Schmidt, F. Buechi, K.E. Swider-Lyons, B.S. Pivovar, P.N. Pintauro, V.K. Ramani, J.M. Fenton, P. Strasser, K.E. Ayers, A.Z. Weber, T.F. Fuller, R.A. Mantz, H. Xu, C. Coutanceau, S. Mitsushima, S. Narayan, P. Shirvanian, Y.-T. Kim, Y. Gochi-Ponce (Hrsg.): ECS Transactions 2018
DOI: 10.1149/08613.0221ecst
Eifert L., Jusys Z., Banerjee R., Behm RJ., Zeis R.:
Differential Electrochemical Mass Spectrometry of Carbon Felt Electrodes for Vanadium Redox Flow Batteries
In: ACS Applied Energy Materials 1 (2018), S. 6714-6718
ISSN: 2574-0962
DOI: 10.1021/acsaem.8b01550
Ince UU., Markötter H., George MG., Liu H., Ge N., Lee J., Alrwashdeh SS., Zeis R., Messerschmidt M., Scholta J., Bazylak A., Manke I.:
Effects of compression on water distribution in gas diffusion layer materials of PEMFC in a point injection device by means of synchrotron X-ray imaging
In: International Journal of Hydrogen Energy 43 (2018), S. 391-406
ISSN: 0360-3199
DOI: 10.1016/j.ijhydene.2017.11.047
Liu H., George MG., Ge N., Muirhead D., Shrestha P., Lee J., Banerjee R., Zeis R., Messerschmidt M., Scholta J., Krolla P., Bazylak A.:
Microporous layer degradation in polymer electrolyte membrane fuel cells
In: Journal of The Electrochemical Society 165 (2018), S. F3271-F3280
ISSN: 0013-4651
DOI: 10.1149/2.0291806jes

2017

Bevilacqua N., George MG., Bazylak A., Zeis R.:
Phosphoric acid distribution patterns in high temperature PEM fuel cells
Symposium on Polymer Electrolyte Fuel Cells 17, PEFC 2017 - 232nd ECS Meeting (National Harbor, MD, USA, 1. Oktober 2017 - 5. Oktober 2017)
In: D. J. Jones, F. Buechi, K. E. Swider-Lyons, P. N. Pintauro, H. Uchida, T. J. Schmidt, B. S. Pivovar, H. A. Gasteiger, A. Z. Weber, P. A. Shirvanian, J. M. Fenton, T. F. Fuller, K. Shinohara, K. A. Perry, P. Strasser, C. Coutanceau, S. Mitsushima, R. A. Mantz, S. Narayan, V. Ramani, K. E. Ayers, Y.-T. Kim, H. Xu (Hrsg.): ECS Transactions 2017
DOI: 10.1149/08008.0409ecst
Bevilacqua N., George MG., Galbiati S., Bazylak A., Zeis R.:
Phosphoric Acid Invasion in High Temperature PEM Fuel Cell Gas Diffusion Layers
In: Electrochimica Acta 257 (2017), S. 89-98
ISSN: 0013-4686
DOI: 10.1016/j.electacta.2017.10.054
George MG., Liu H., Muirhead D., Banerjee R., Ge N., Shrestha P., Lee J., Chevalier S., Hinebaugh J., Messerschmidt M., Zeis R., Scholta J., Bazylak A.:
Accelerated degradation of polymer electrolyte membrane fuel cell gas diffusion layers. III. Mass transport resistance and liquid water accumulation at limiting current density with in operando synchrotron X-ray radiography
In: Journal of The Electrochemical Society 164 (2017), S. F714-F721
ISSN: 0013-4651
DOI: 10.1149/2.0091707jes
Giffin GA., Galbiati S., Walter M., Aniol K., Ellwein C., Kerres J., Zeis R.:
Interplay between structure and properties in acid-base blend PBI-based membranes for HT-PEM fuel cells
In: Journal of Membrane Science 535 (2017), S. 122-131
ISSN: 0376-7388
DOI: 10.1016/j.memsci.2017.04.019
Liu H., George MG., Banerjee R., Ge N., Lee J., Muirhead D., Shrestha P., Chevalier S., Hinebaugh J., Zeis R., Messerschmidt M., Scholta J., Bazylak A.:
Accelerated degradation of polymer electrolyte membrane fuel cell gas diffusion layers II. Steady state liquid water distributions with in operando synchrotron x-ray radiography
In: Journal of The Electrochemical Society 164 (2017), S. F704-F713
ISSN: 0013-4651
DOI: 10.1149/2.0081707jes
Liu H., George MG., Messerschmidt M., Zeis R., Kramer D., Scholta J., Bazylak A.:
Accelerated degradation of polymer electrolyte membrane fuel cell gas diffusion layers I. Methodology and surface characterization
In: Journal of The Electrochemical Society 164 (2017), S. F695-F703
ISSN: 0013-4651
DOI: 10.1149/2.0071707jes
Liu H., George MG., Zeis R., Messerschmidt M., Scholta J., Bazylak A.:
The impacts of microporous layer degradation on liquid water distributions in polymer electrolyte membrane fuel cells using synchrotron imaging
Symposium on Polymer Electrolyte Fuel Cells 17, PEFC 2017 - 232nd ECS Meeting (National Harbor, MD, USA, 1. Oktober 2017 - 5. Oktober 2017)
In: D. J. Jones, F. Buechi, K. E. Swider-Lyons, P. N. Pintauro, H. Uchida, T. J. Schmidt, B. S. Pivovar, H. A. Gasteiger, A. Z. Weber, P. A. Shirvanian, J. M. Fenton, T. F. Fuller, K. Shinohara, K. A. Perry, P. Strasser, C. Coutanceau, S. Mitsushima, R. A. Mantz, S. Narayan, V. Ramani, K. E. Ayers, Y.-T. Kim, H. Xu (Hrsg.): ECS Transactions 2017
DOI: 10.1149/08008.0155ecst
Weiß A., Schindler S., Galbiati S., Danzer MA., Zeis R.:
Distribution of Relaxation Times Analysis of High-Temperature PEM Fuel Cell Impedance Spectra
In: Electrochimica Acta 230 (2017), S. 391-398
ISSN: 0013-4686
DOI: 10.1016/j.electacta.2017.02.011

2016

Chevalier S., Fazeli M., Mack F., Galbiati S., Manke I., Bazylak A., Zeis R.:
Role of the microporous layer in the redistribution of phosphoric acid in high temperature PEM fuel cell gas diffusion electrodes
In: Electrochimica Acta 212 (2016), S. 187-194
ISSN: 0013-4686
DOI: 10.1016/j.electacta.2016.06.121
George MG., Liu H., Banerjee R., Ge N., Shrestha P., Muirhead D., Lee J., Chevalier S., Hinebaugh J., Messerschmidt M., Zeis R., Scholta J., Bazylak A.:
Accelerated degradation of polymer electrolyte membrane fuel cell gas diffusion layers: Mass transport resistance and liquid water accumulation at limiting current density with in operando synchrotron X-ray radiography
Symposium on Polymer Electrolyte Fuel Cells 16, PEFC 2016 - PRiME 2016/230th ECS Meeting (Honolulu, HI, USA, 2. Oktober 2016 - 7. Oktober 2016)
In: D. J. Jones, H. Uchida, H. A. Gasteiger, K. Swider-Lyons, F. N. Buchi, P. N. Pintauro, B. S. Pivovar, K. E. Ayers, K. A. Perry, P. Shirvanian, A. Z. Weber, V. K. Ramani, P. Strasser, R. A. Mantz, K. Shinohara, S. Mitsushima, C. Coutanceau, J. M. Fenton, T. J. Schmidt, T. F. Fuller, S. R. Narayanan, Y. T. Kim, L. Zhuang, S. G. Sun (Hrsg.): ECS Transactions 2016
DOI: 10.1149/07514.0089ecst
Liu H., George MG., Ge N., Banerjee R., Chevalier S., Lee J., Shrestha P., Muirhead D., Hinebaugh J., Zeis R., Messerschmidt M., Scholta J., Bazylak A.:
Accelerated degradation of polymer electrolyte membrane fuel cell gas diffusion layers: Performance degradation and steady state liquid water distributions with in operando synchrotron X-ray radiography
Symposium on Polymer Electrolyte Fuel Cells 16, PEFC 2016 - PRiME 2016/230th ECS Meeting (Honolulu, HI, USA, 2. Oktober 2016 - 7. Oktober 2016)
In: D. J. Jones, H. Uchida, H. A. Gasteiger, K. Swider-Lyons, F. N. Buchi, P. N. Pintauro, B. S. Pivovar, K. E. Ayers, K. A. Perry, P. Shirvanian, A. Z. Weber, V. K. Ramani, P. Strasser, R. A. Mantz, K. Shinohara, S. Mitsushima, C. Coutanceau, J. M. Fenton, T. J. Schmidt, T. F. Fuller, S. R. Narayanan, Y. T. Kim, L. Zhuang, S. G. Sun (Hrsg.): ECS Transactions 2016
DOI: 10.1149/07514.0289ecst
Mack F., Galbiati S., Gogel V., Jörissen L., Zeis R.:
Evaluation of Electrolyte Additives for High-Temperature Polymer Electrolyte Fuel Cells
In: ChemElectroChem 3 (2016), S. 770-773
ISSN: 2196-0216
DOI: 10.1002/celc.201500561
Mack F., Morawietz T., Hiesgen R., Kramer D., Gogel V., Zeis R.:
Influence of the polytetrafluoroethylene content on the performance of high-temperature polymer electrolyte membrane fuel cell electrodes
In: International Journal of Hydrogen Energy 41 (2016), S. 7475-7483
ISSN: 0360-3199
DOI: 10.1016/j.ijhydene.2016.02.156
Schindler S., Weiß A., Galbiati S., Mack F., Danzer MA., Zeis R.:
Identification of polarization losses in high temperature PEM fuel cells by distribution of relaxation times analysis
Symposium on Polymer Electrolyte Fuel Cells 16, PEFC 2016 - PRiME 2016/230th ECS Meeting (Honolulu, HI, USA, 2. Oktober 2016 - 7. Oktober 2016)
In: D. J. Jones, H. Uchida, H. A. Gasteiger, K. Swider-Lyons, F. N. Buchi, P. N. Pintauro, B. S. Pivovar, K. E. Ayers, K. A. Perry, P. Shirvanian, A. Z. Weber, V. K. Ramani, P. Strasser, R. A. Mantz, K. Shinohara, S. Mitsushima, C. Coutanceau, J. M. Fenton, T. J. Schmidt, T. F. Fuller, S. R. Narayanan, Y. T. Kim, L. Zhuang, S. G. Sun (Hrsg.): ECS Transactions 2016
DOI: 10.1149/07514.0045ecst

2015

Heider E., Jusys Z., Behm RJ., Jörissen L., Zeis R.:
Perfluoroalkyl-Phosphonic Acid Adsorption on Polycrystalline Platinum and Its Influence on the Oxygen Reduction Reaction
In: Journal of Physical Chemistry C 119 (2015), S. 18859-18869
ISSN: 1932-7447
DOI: 10.1021/acs.jpcc.5b03858
Mack F., Aniol K., Ellwein C., Kerres J., Zeis R.:
Novel phosphoric acid-doped PBI-blends as membranes for high-temperature PEM fuel cells
In: Journal of Materials Chemistry A 3 (2015), S. 10864-10874
ISSN: 2050-7488
DOI: 10.1039/c5ta01337b
Mack F., Laukenmann R., Galbiati S., Kerres JA., Zeis R.:
Electrochemical impedance spectroscopy as a diagnostic tool for high-temperature PEM fuel cells
Symposium on Polymer Electrolyte Fuel Cells 15, PEFC 2015 - 228th ECS Meeting (Phoenix, AZ, 11. Oktober 2015 - 15. Oktober 2015)
In: H. A. Gasteiger, A. Z. Weber, V. K. Ramani, T. F. Fuller, R. A. Mantz, H. Uchida, F. N. Buchi, M. Edmundson, C. Coutanceau, J. M. Fenton, S. Mitsushima, T. J. Schmidt, K. Shinohara, K. Swider-Lyons, D. J. Jones, B. S. Pivovar, K. E. Ayers, K. A. Perry, S. R. Narayanan, P. Strasser (Hrsg.): ECS Transactions 2015
DOI: 10.1149/06917.1075ecst
Zeis R.:
Materials and characterization techniques for high-temperature polymer electrolyte membrane fuel cells
In: Beilstein Journal of Nanotechnology 6 (2015), S. 68-83
ISSN: 2190-4286
DOI: 10.3762/bjnano.6.8

2014

Heider E., Ignatiev N., Jörissen L., Wenda A., Zeis R.:
Fluoroalkyl phosphoric acid derivatives - Model compounds to study the adsorption of electrolyte species on polycrystalline platinum
In: Electrochemistry Communications 48 (2014), S. 24-27
ISSN: 1388-2481
DOI: 10.1016/j.elecom.2014.08.008
Mack F., Heissler S., Laukenmann R., Zeis R.:
Phosphoric acid distribution and its impact on the performance of polybenzimidazole membranes
In: Journal of Power Sources 270 (2014), S. 627-633
ISSN: 0378-7753
DOI: 10.1016/j.jpowsour.2014.06.171
Mack F., Klages M., Scholta J., Jörissen L., Morawietz T., Hiesgen R., Kramer D., Zeis R.:
Morphology studies on high-temperature polymer electrolyte membrane fuel cell electrodes
In: Journal of Power Sources 255 (2014), S. 431-438
ISSN: 0378-7753
DOI: 10.1016/j.jpowsour.2014.01.032

2013

Mack F., Morawietz T., Hiesgen R., Kramer D., Zeis R.:
PTFE distribution in high-temperature PEM electrodes and its effect on the cell performance
In: ECS Transactions 2013
DOI: 10.1149/05801.0881ecst
Mack F., Morawietz T., Hiesgen R., Kramer D., Zeis R.:
PTFE Distribution in High-Temperature PEM Electrodes and Its Effect on the Cell Performance
In: ECS Transactions 58 (2013), S. 881-888
ISSN: 1938-5862
DOI: 10.1149/05801.0881ecst

2010

He Q., Mukerjee S., Zeis R., Parres-Esclapez S., Illán-Gómez MJ., Bueno-López A.:
Enhanced Pt stability in MO2 (M = Ce, Zr or Ce0.9Zr0.1)-promoted Pt/C electrocatalysts for oxygen reduction reaction in PAFCs
In: Applied Catalysis A-General 381 (2010), S. 54-65
ISSN: 0926-860X
DOI: 10.1016/j.apcata.2010.03.044
Lehnert W., Wannek C., Zeis R.:
Trends in high-temperature polymer electrolyte fuel cells
In: R. Steinberger-Wilckens, W. Lehne (Hrsg.): Innovations in Fuel Cell Technologies, Cambridge: Royal Society of Chemistry, 2010, S. 45-75 (RSC Energy and Environment Series, Bd.2010)
ISBN: 9781849730334
DOI: 10.1039/9781849732109-00041