1. National Synchrotron Radiation Laboratory
2. University of Science and Technology of China
3. Hefei
4. China
5. School of Chemistry and Chemical Engineering
6. Anhui University
7. School of Physical Sciences
8. University of Chinese Academy of Sciences
9. Beijing
10. State Key Laboratory of Coal Conversion
11. Institute of Coal Chemistry
12. Chinese Academy of Sciences
13. Taiyuan 030001