1. Faculty of Chemistry, Silesian University of Technology, M. Strzody 9, 44-100, Gliwice, Poland
2. Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Yamadaoka 2-1, Suita, Osaka 565-0871, Japan
3. Chemistry Department, Durham University, South Road, Durham DH1 3LE, UK
4. Department of Energy Conversion and Storage, Technical University of Denmark, Anker Engelunds Vej 301, 2800 Kongens Lyngby, Denmark