1. Beijing National Laboratory for Molecular Sciences
2. College of Chemistry and Molecular Engineering
3. Peking University
4. Beijing 100871
5. China
6. State Key Laboratory of Coal Conversion
7. Institute of Coal Chemistry
8. Chinese Academy of Sciences
9. Taiyuan
10. State Key Laboratory of Physical Chemistry of Solid Surfaces
11. Department of Chemistry
12. College of Chemistry and Chemical Engineering
13. Xiamen University
14. Xiamen 361005
15. Shanghai Synchrotron Radiation Facility
16. Shanghai Institute of Applied Physics
17. Shanghai 201204