1. College of New Energy, China University of Petroleum (East China), Qingdao 266580, China
2. College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China
3. Research and Innovation Center of New Energy, Shandong Energy Group., Co. Ltd., Jinan 250101, China
4. National Engineering Research Center of Coal Gasification and Coal-Based Advanced Materials, Jinan 250101, China