1. Physics of Energy Conversion and StorageTechnical University of Munich James-Franck-Strasse 1 85748 Garching Germany
2. Catalysis Research CenterTechnical University of Munich Ernst-Otto-Fischer-Strasse 1 85748 Garching Germany
3. Department of Electrical and Computer EngineeringTechnical University of Munich 80333 Munich Germany
4. Central European Institute of TechnologyBrno University of Technology Purkynova 123 612 00 Brno Czech Republic