1. Department of Heterogeneous Catalysis
2. Chemical Technology (ITMC)
3. RWTH Aachen University
4. Aachen 52074
5. Germany
6. Department of Electrical Energy, Metals, Mechanical Construction & Systems (EEMMeCS)
7. Group Metals Science & Technology
8. B-9052 Gent
9. Belgium
10. Materials Chemistry
11. RWTH Aachen