1. Laboratory of Industrial Chemistry, Ruhr University Bochum, 44780 Bochum, Germany
2. IVG Institute for Combustion and Gas Dynamics – Reactive Fluids and CENIDE Center for Nanointegration, University of Duisburg-Essen, 47057 Duisburg, Germany
3. Faculty of Physics, University of Duisburg-Essen, 47057 Duisburg, Germany
4. Max Planck Institute for Chemical Energy Conversion, 45470 Mülheim an der Ruhr, Germany