1. Department of Physics and Astronomy, Division of X-ray Photon Science, Uppsala University, Box 516, S-751 20 Uppsala, Sweden
2. Department of Chemistry – Ångström Laboratory, Structural Chemistry, Uppsala University, Box 538, 751 21 Uppsala, Sweden
3. Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
4. Department for Hydrogen Technology, Institute for Energy Technology, P.O. Box 40, NO-2027 Kjeller, Norway