1. State Key Laboratory of Chemistry and Utilization of Carbon-Based Energy Resources; College of Chemistry, Xinjiang University, Urumqi, 830017 Xinjiang, P.R. China
2. School of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, P.R. China
3. Department of Chemical Engineering, University of Minnesota-Duluth, Duluth, Minnesota 55812, United States