1. Centre for Surface Chemistry and CatalysisKU Leuven Celestijnenlaan 200F p.o. box 2461 3001 Leuven Belgium
2. Department of Materials and Environmental ChemistryStockholm University Svante Arrhenius väg 16C 10691 Stockholm Sweden
3. Department of Inorganic Chemistry and TechnologyNational Institute of Chemistry Hajdrihova 19 1001 Ljubljana Slovenia
4. EMATUniversity of Antwerp Groenenborgerlaan 171 2020 Antwerp Belgium
5. Deutsches Elektronen-Synchrotron Notkestraße 85 22607 Hamburg Germany
6. European Synchrotron Radiation Facility Avenue des Martyrs 71, CS 40220 38043 Grenoble Cedex 9 France