1. Department of Chemical Engineering, Section Catalysis Engineering, Delft University of Technology, Julianalaan 136, NL 2628 BL Delft, The Netherlands
2. Department of Materials Science and Chemical Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
3. Shell Global Solutions (Germany) GmbH, Hohe-Schaar-Strasse 36, D-21107 Hamburg, Germany