Institut für Chemische Technologien und Analytik (Elektrochemie)
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Dr. Alexander Karl Opitz

Institut für chemische Technologien und Analytik

Getreidemarkt 9/164EC

1060 Wien, Austria

Visitenkarte TISS

email: alexander.opitz@tuwien.ac.at

Academic Education & Scientific Career
since Feb. 2017 Visiting Scientist at MIT, Department of Nuclear Science and Engineering, Research Group of Prof. Bilge Yildiz
since Aug. 2011 University assistant at the Vienna University of Technology, Institute of Chemical Technologies & Analytics, Division Electrochemistry
May – Sept. 2013 Parental leave
June 2011 PhD graduation (with distinction), Vienna University of Technology, Supervisor: Prof. Dr. J. Fleig / Title of thesis: „Oxygen Exchange Pathways of Platinum Model Electrodes on Yttria-stabilized Zirconia“
Aug. 2008 – July 2011 PhD study at Vienna University of Technology, Institute of Chemical Technologies & Analytics, Division Electrochemistry
April 2008 Master’s degree (Dipl.-Ing.) in Technical Chemistry, Vienna University of Technology; graduation with distinction

Project Experience
since July 2015 Head of project “Pt/YSZ model electrode systems” funded by Bosch GmbH, Stuttgart;
since Sept. 2014 Head of the Module “Electrochemical Properties of Electrode Materials” within the Christian-Doppler-Laboratory for “Interfaces in Metal-Supported Electrochemical Energy Converters” funded by the Austrian Federal Ministry of Science, Research, and Economy and the National Foundation for Research, Technology, and Development, project partners: Forschungszentrum Jülich, Plansee SE, AVL List GmbH;

Awards
2015 Best poster award, 20th International Conference on Solid State Ionics, Keystone, Colorado
2011 Young Scientist’s Award for Applied Electrochemistry of the German Chemical Society (GDCh)
2009 Best poster award, 17th International Conference on Solid State Ionics, Toronto, Canada

Five most important papers
1 Opitz, A. K.; Fleig, J., “Investigation of O2 reduction on Pt/YSZ by means of thin film microelectrodes: The geometry dependence of the electrode impedance.” Solid State Ionics 2010, 181 (15-16), 684–693.
2 Opitz, A. K.; Schintlmeister, A.; Hutter, H.; Fleig, J., “Visualization of oxygen reduction sites at Pt electrodes on YSZ by means of 18O tracer incorporation: The width of the electrochemically active zone.” Phys. Chem. Chem. Phys 2010, 12, 12734-12745.
3 Opitz, A. K.; Nenning, A.; Rameshan, C.; Rameshan, R.; Blume, R.; Hävecker, M.; Knop-Gericke, A.; Rupprechter, G.; Fleig, J.; Klötzer, B., “Enhancing Electrochemical Water-Splitting Kinetics by Polarization-Driven Formation of Near-Surface Iron(0): An In Situ XPS Study on Perovskite-Type Electrodes.” Angew. Chem. Int. Ed. 2015, 54 (9), 2628–2632.
4 Gerstl, M.; Nenning, A.; Iskandar, R.; Rojek-Wöckner, V.; Bram, M.; Hutter, H.; Opitz, A. K., “The Sulphur Poisoning Behaviour of Gadolinia Doped Ceria Model Systems in Reducing Atmospheres.” Materials 2016, 9 (8), 649-671.
5 Rupp, G. M.; Opitz, A. K.; Nenning, A.; Limbeck, A.; Fleig, J., Nat. Mater. 2017 (advance online publication), doi: 10.1038/nmat4879.

Scientific Cooperations
PD Dr. Martin Bram, Forschungszentrum Jülich, Institute of Energy and Climate Research, Materials Synthesis and Processing (IEK-1)
Prof. Dr. Bernhard Klötzer, University of Innsbruck, Institute of Physical Chemistry
Prof. Dr. Bilge Yildiz, Massachusetts Institute of Technology, Department of Nuclear Science and Engineering & Department of Materials Science and Engineering

Research Interests
Electrode kinetics of solid state electrochemical systems – identification of current pathways, electrochemically active zones, and reaction mechanisms.
Electrodes in solid oxide fuel cells – alternative electrode materials, optimizing real systems by in depth understanding of model electrodes.
Fundamental research on solid state electrolysis cells – novel electrode materials for high temperature H2O and CO2 splitting; electrochemical switching of electrode surface functionality.