1. Institute for Energy Technology, P.O. Box 40, Kjeller NO 2027, Norway
2. Department of Inorganic Chemistry, Faculty of Chemistry, Ivan Franko National University of Lviv, Kyryla i Mefodiya Street, 6, Lviv 79005, Ukraine
3. Center for Materials and Nanotechnology, University of Oslo, P.O. Box 1033, Oslo NO 0315, Norway
4. Institute Laue-Langevin, B.P. 156, Grenoble, Cedex 9 38042, France
5. Delft University of Technology (TU Delft), Delft Reactor Intituut, Mekelweg 15, Delft 2629, The Netherlands
6. Institut für Anorganische und Analytische Chemie, Universität Münster, Corrensstrasse 30, Münster 48149, Germany
7. Max-Planck-Institut für Festkörperforschung, Heisenbergstrasse 1, Stuttgart 70569, Germany