1. Helmholtz Institute Ulm (HIU) Helmholtzstrasse 11 89081 Ulm Germany
2. Karlsruhe Institute of Technology (KIT) P.O. Box 3640 76021 Karlsruhe Germany
3. Institute of Surface Chemistry and Catalysis Ulm University Albert‐Einstein‐Allee 47 89081 Ulm Germany
4. Central Facility for Electron Microscopy Group of Electron Microscopy of Materials Science Ulm University Albert‐Einstein‐Allee 11 89081 Ulm Germany