1. Karlsruhe Institute of Technology; Institute of Catalysis Research and Technology; Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
2. Karlsruhe Institute of Technology; Institute of Nanotechnology; Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
3. Fraunhofer Institute for Structural Durability and System Reliability LBF; Division Plastics; Schlossgartenstraße 6 64289 Darmstadt Germany