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Alexander K. Opitz
Alexander K. Opitz
Bestätigte E-Mail-Adresse bei tuwien.ac.at - Startseite
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Zitiert von
Jahr
Real-time impedance monitoring of oxygen reduction during surface modification of thin film cathodes
GM Rupp, AK Opitz, A Nenning, A Limbeck, J Fleig
Nature materials 16 (6), 640-645, 2017
1762017
Optimized La0.6Sr0.4CoO3–δ Thin‐Film Electrodes with Extremely Fast Oxygen‐Reduction Kinetics
J Januschewsky, M Ahrens, A Opitz, F Kubel, J Fleig
Advanced Functional Materials 19 (19), 3151-3156, 2009
1752009
Ambient pressure XPS study of mixed conducting perovskite-type SOFC cathode and anode materials under well-defined electrochemical polarization
A Nenning, AK Opitz, C Rameshan, R Rameshan, R Blume, M Hävecker, ...
The Journal of Physical Chemistry C 120 (3), 1461-1471, 2016
1642016
Revisiting the temperature dependent ionic conductivity of yttria stabilized zirconia (YSZ)
C Ahamer, AK Opitz, GM Rupp, J Fleig
Journal of The Electrochemical Society 164 (7), F790, 2017
1532017
Investigation of O2 reduction on Pt/YSZ by means of thin film microelectrodes: The geometry dependence of the electrode impedance
AK Opitz, J Fleig
Solid State Ionics 181 (15-16), 684-693, 2010
1402010
Enhancing electrochemical water‐splitting kinetics by polarization‐driven formation of near‐surface iron (0): an in situ xps study on perovskite‐type electrodes
AK Opitz, A Nenning, C Rameshan, R Rameshan, R Blume, M Hävecker, ...
Angewandte Chemie International Edition 54 (9), 2628-2632, 2015
1382015
Cation diffusion in La 0.6 Sr 0.4 CoO 3− δ below 800 C and its relevance for Sr segregation
M Kubicek, GM Rupp, S Huber, A Penn, AK Opitz, J Bernardi, ...
Physical Chemistry Chemical Physics 16 (6), 2715-2726, 2014
1332014
Surface Chemistry of Perovskite-Type Electrodes During High Temperature CO2 Electrolysis Investigated by Operando Photoelectron Spectroscopy
AK Opitz, A Nenning, C Rameshan, M Kubicek, T Götsch, R Blume, ...
ACS applied materials & interfaces 9 (41), 35847-35860, 2017
1222017
A novel ToF-SIMS operation mode for sub 100 nm lateral resolution: Application and performance
M Kubicek, G Holzlechner, AK Opitz, S Larisegger, H Hutter, J Fleig
Applied surface science 289, 407-416, 2014
1042014
The Chemical Evolution of the La0.6Sr0.4CoO3−δ Surface Under SOFC Operating Conditions and Its Implications for Electrochemical Oxygen Exchange Activity
AK Opitz, C Rameshan, M Kubicek, GM Rupp, A Nenning, T Götsch, ...
Topics in catalysis 61, 2129-2141, 2018
872018
Metal-supported solid oxide fuel cells with exceptionally high power density for range extender systems
D Udomsilp, J Rechberger, R Neubauer, C Bischof, F Thaler, ...
Cell Reports Physical Science 1 (6), 2020
852020
Investigation of the oxygen exchange mechanism on Pt| yttria stabilized zirconia at intermediate temperatures: Surface path versus bulk path
AK Opitz, A Lutz, M Kubicek, F Kubel, H Hutter, J Fleig
Electrochimica Acta 56 (27), 9727-9740, 2011
702011
A novel Ni/ceria-based anode for metal-supported solid oxide fuel cells
VA Rojek-Wöckner, AK Opitz, M Brandner, J Mathé, M Bram
Journal of power sources 328, 65-74, 2016
642016
Understanding electrochemical switchability of perovskite-type exsolution catalysts
AK Opitz, A Nenning, V Vonk, S Volkov, F Bertram, H Summerer, ...
Nature communications 11 (1), 4801, 2020
562020
Visualization of oxygen reduction sites at Pt electrodes on YSZ by means of 18O tracer incorporation: The width of the electrochemically active zone
AK Opitz, A Schintlmeister, H Hutter, J Fleig
Physical chemistry chemical physics 12 (39), 12734-12745, 2010
532010
Comparison of electrochemical properties of La0. 6Sr0. 4FeO3-δ thin film electrodes: Oxidizing vs. reducing conditions
S Kogler, A Nenning, GM Rupp, AK Opitz, J Fleig
Journal of The Electrochemical Society 162 (3), F317, 2015
512015
Thin film cathodes in SOFC research: How to identify oxygen reduction pathways?
AK Opitz, M Kubicek, S Huber, T Huber, G Holzlechner, H Hutter, J Fleig
Journal of Materials Research 28 (16), 2085-2105, 2013
502013
Tuning point defects by elastic strain modulates nanoparticle exsolution on perovskite oxides
J Wang, J Yang, AK Opitz, W Bowman, R Bliem, G Dimitrakopoulos, ...
Chemistry of Materials 33 (13), 5021-5034, 2021
472021
Temperature gradients in microelectrode measurements: Relevance and solutions for studies of SOFC electrode materials
TM Huber, AK Opitz, M Kubicek, H Hutter, J Fleig
Solid State Ionics 268, 82-93, 2014
472014
A novel approach for analyzing electrochemical properties of mixed conducting solid oxide fuel cell anode materials by impedance spectroscopy
A Nenning, AK Opitz, TM Huber, J Fleig
Physical Chemistry Chemical Physics 16 (40), 22321-22336, 2014
462014
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