1. Institute
of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
2. State
Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710119, China
3. University of Chinese Academy of Sciences, Beijing 100049, China
4. Shanghai
Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China