1. Hydrogen · Fuel Cell Research Center Korea Institute of Science and Technology (KIST) Seoul 02792 Korea
2. Center for Energy Storage Research Korea Institute of Science and Technology (KIST) Seoul 02792 Korea
3. Energy & Environment Technology KIST School University of Science and Technology (UST) Seoul 02792 Korea
4. Polymer & Materials Chemistry Department of Chemistry Lund University Lund 221 00 Sweden
5. Blue World Technologies Egeskovvej 6C Kvistgaard 3490 Denmark