1. School
of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
2. Department
of Chemistry and Environmental Engineering, Shanxi Datong University, Datong 037009, China
3. Key
Laboratory of Coal Science and Technology of Ministry of Education
and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
4. North
Japan Research Institute for Sustainable Energy (NJRISE), Hirosaki University, 2-1-3 Matsubara, Aomori 030-0813, Japan