1. Faculty of Chemistry University of Duisburg-Essen and Center for Nanointegration Duisburg-Essen (CENIDE) Universitätsstr. 7 45141 Essen Germany
2. Laboratory of Industrial Chemistry Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätsstr. 150 44780 Bochum Germany
3. Faculty of Physics and CENIDE University of Duisburg-Essen Lotharstraße 1 45057 Duisburg Germany
4. Analytical Chemistry-Center for Electrochemical Sciences (CES) Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätsstr. 150 44780 Bochum Germany
5. Interdisciplinary Center for Analytics on the Nanoscale (ICAN) University of Duisburg-Essen Carl-Benz-Straße 199 47057 Duisburg Germany
6. Center for Nanointegration Duisburg-Essen (CENIDE) Carl-Benz-Straße 199 47057 Duisburg Germany
7. Institute for Inorganic Chemistry Christian-Albrechts-Universität zu Kiel Max-Eyth-Str. 2 24118 Kiel Germany