1. State Key Laboratory of Coal Conversion, Institute of Coal Chemistry Chinese Academy of Sciences Taiyuan Shanxi 030001 P.R. China
2. University of Chinese Academy of Sciences Beijing 100049 P.R. China
3. State Key Laboratory of Fluorinated Functional Membrane Materials Dongyue Fluorosilicone Technology Group Zibo Shandong 256400 P.R. China
4. Dalian National Laboratory for Clean Energy Chinese Academy of Sciences Dalian Liaoning 116023 P.R. China