1. Chemistry – School of Natural and Environmental Sciences Newcastle University Newcastle upon Tyne NE1 7RU United Kingdom
2. North East Centre for Energy Materials (NECEM) Newcastle upon Tyne NE1 7RU United Kingdom
3. Department of Physics Technische Universität München 80333 Munich Germany
4. Electrochemistry and Electroplating Group Technische Universität Ilmenau 98693 Ilmenau Germany