1. Center for Materials Science and Nanotechnology (SMN), Department of Chemistry, University of Oslo, 1033 Blindern, 0315 Oslo, Norway
2. SINTEF Industry, Forskningsveien 1, 0373 Oslo, Norway
3. Department of Chemistry, NIS Center and INSTM Reference Center, University of Turin, 10125 Turin, Italy
4. Haldor Topsøe A/S, Haldor Topsøes Allé 1, 2800 Kongens Lyngby, Denmark