1. School of Chemistry
and Chemical Engineering, Hefei University of Technology, No. 193, Tunxi Road, Hefei 230009, P. R. China
2. State Key
Laboratory Breeding Base of Coal Science and Technology Co-founded
by Shanxi Province and the Ministry of Science and Technology, Taiyuan University of Technology, No. 79, West Yingze Street, Taiyuan 030024, P. R. China
3. Department of Mechanical Engineering, The University of Texas at Austin, 1 University Station C2200, Austin, Texas 78712-0292, United States
4. Institute of Nano Biomedicine and Engineering,
Department of Instrument Science and Engineering, School of Electronic
Information and Electrical Engineering, Shanghai Jiao Tong University, No. 800, Dongchuan Road, Shanghai 200240, P. R. China