1. Analytical Chemistry—Center for Electrochemical Sciences (CES) Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätsstr. 150 44780 Bochum Germany
2. Max Planck Institute for Chemical Energy Conversion Stiftstrasse 34–36 45470 Mülheim an der Ruhr Germany
3. Present address: PPG (Deutschland) Business Support GmbH, PPG Packaging Coatings Erlenbrunnenstr. 20 72411 Bodelshausen Germany