1. Institute of Nanotechnology; Karlsruhe Institute of Technology (KIT); D-76344 Eggenstein-Leopoldshafen Germany
2. Helmholtz Institute Ulm for Electrochemical Energy Storage (HIU); Helmholtzstr. 11 89081 Ulm Germany
3. Joint Research Laboratory Nanomaterials (KIT and TUD); Technische Universität Darmstadt (TUD); Jovanka-Bontschits-Str. 2 D-64287 Darmstadt Germany
4. Institute of Surface Chemistry and Catalysis; Ulm University; Albert-Einstein-Allee 47 D-89081 Ulm Germany
5. Karlsruhe Nano Micro Facility; Karlsruhe Institute of Technology (KIT); D-76344 Eggenstein-Leopoldshafen Germany