1. Zentrum für Sonnenenergie- und Wasserstoffforschung Baden-Württemberg (ZSW) Helmholtzstrasse 8 D-89081 Ulm Germany
2. Institute of Surface Chemistry and Catalysis Ulm University Albert-Einstein-Allee 47 D-89081 Ulm Germany
3. Institute of Theoretical Chemistry Ulm University Albert-Einstein-Allee 11 D-89081 Ulm Germany
4. Institute for Inorganic Chemistry II Ulm University Albert-Einstein-Allee 11 D-89081 Ulm Germany
5. Electron Microscopy Group of Materials Science Ulm University Albert-Einstein-Allee 11 D-89081 Ulm Germany
6. Helmholtz Institute Ulm Electrochemical Energy Storage (HIU) Helmholtzstraße 11 D-89081 Ulm Germany