1. State Key
Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, Shanxi, 030001,
P.R. China
2. National Engineering
Laboratory for Indirect Coal Liquefaction, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, Shanxi 030001,
P.R. China
3. Graduate University of Chinese Academy of Sciences, Beijing 100039,
P.R. China