1. Beijing National Laboratory for Molecular Sciences; Key Laboratory of Analytical Chemistry for Living Biosystems; Institute of Chemistry; The Chinese Academy of Sciences; Beijing 100190 P. R. China
2. State Key Laboratory of Heavy Oil Processing; Institute of New Energy; China University of Petroleum (Beijing); Beijing 102249 P. R. China
3. University of Chinese Academy of Sciences; Beijing 100049 P. R. China
4. Beijing Synchrotron Radiation Facility; Institute of High Energy Physics; Chinese Academy of Sciences; P. R. China