1. Sustainable Synthesis Products, Division Hydrogen Technologies, Fraunhofer Institute for Solar Energy Systems, Heidenhofstr. 2, 79110, Freiburg, Germany
2. ASG Analytik-Service AG, Trentiner Ring 30, 86356 Neusäss, Germany
3. Chair of Chemical Engineering, Technische Universität Berlin, Str. des 17. Juni 135, MAR 2-1, 10623 Berlin, Germany