1. Institut für Anorganische Chemie, Christian-Albrechts-Universität zu Kiel, 24098 Kiel, Germany
2. Centre for High Resolution Electron Microscopy (EMC-M), Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
3. Energy Safety Research Institute, Swansea University, Fabian Way, Swansea SA1 8EN, U.K.
4. Department of Chemistry and Industrial Chemistry, University of Pisa, Via Giuseppe Moruzzi 13, 56124 Pisa, Italy
5. Kiel Nano, Surface and Interface Science KiNSIS, Kiel University, Christian-Albrechts-Platz 4, 24118 Kiel, Germany