1. Fraunhofer Institute for Environmental, Safety and Energy Technology UMSICHT, Osterfelder Str. 3, 46047 Oberhausen, Germany
2. Fraunhofer Institute for Solar Energy Systems, Heidenhofstraße 2, 79110 Freiburg, Germany
3. The hydrogen and fuel cell center ZBT GmbH, Carl-Benz-Straße 201, 47057 Duisburg, Germany
4. IRD Fuel Cells A/S, Emil Neckelmanns Vej 15 A&B, DK-5220 Odense SØ, Denmark
5. Fraunhofer Institute for Chemical Technology, Joseph-von-Fraunhofer-Straße 7, 76327 Pfinztal, Germany
6. Process Technology for Electrochemical Functional Materials, Institute for Combustion and Gas Dynamics − Reactive Fluids, and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Carl-Benz-Straße 199, D-47057 Duisburg, Germany
7. Inorganic Chemistry I, Faculty for Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstraße 150, 44801 Bochum, Germany