1. Fakultät für Physik und Geowissenschaften, Universität Leipzig, Linnèstraβe 5, 04103 Leipzig, Germany, Catalysis Engineering, ChemE, Delft University of Technology, Julianalaan 136, 2628 BL Delft, The Netherlands, Faculty of Science, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands, and Chemical and Biological Engineering Department, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3120