1. Chemical Technology III Faculty of Chemistry University of Duisburg-Essen Universitätsstraße 7 45141 Essen Germany
2. Fraunhofer Institute for Environmental Safety and Energy Technology UMSICHT Osterfelderstr. 3 46047 Oberhausen Germany
3. Center for Nanointegration Duisburg-Essen (CENIDE) Carl-Benz-Str. 199 47057 Duisburg Germany
4. Inorganic Chemistry I – Technical Electrochemistry Ruhr University Bochum Universitätsstraße 150 44780 Bochum Germany