1. National Engineering Laboratory for Methanol to Olefins
2. Dalian National Laboratory for Clean Energy
3. Dalian Institute of Chemical Physics, Chinese Academy of Sciences
4. Dalian 116023
5. P. R. China
6. Inorganic and Structural Chemistry
7. Department of Materials and Environmental Chemistry
8. Stockholm University
9. SE-106 91 Stockholm
10. Sweden
11. STOE & Cie GmbH Darmstadt
12. Darmstadt 64295
13. Germany