1. Institute for Chemical Technology and Polymer Chemistry Karlsruhe Institute of Technology Karlsruhe 76131 Germany
2. Institute of Catalysis Research and Technology Karlsruhe Institute of Technology Eggenstein-Leopoldshafen 76344 Germany
3. Leibniz Institute for Catalysis (LIKAT) Rostock 18059 Germany
4. Deutsches Elektronen-Synchrotron DESY Hamburg 22607 Germany
5. Faculty of Chemistry and Biochemistry Ruhr University Bochum Bochum 44801 Germany
6. Department Physik Universität Hamburg Hamburg 22761 Germany
7. ESRF - The European Synchrotron Grenoble 38000 France
8. Current Address: Xploraytion GmbH Berlin 10625 Germany
9. Evonik Operations GmbH Hanau-Wolfgang 63457 Germany