1. Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Ministry of Education) School of Chemistry and Chemical Engineering Anhui University Hefei Anhui 230601 P. R. China
2. National Synchrotron Radiation Laboratory Collaborative Innovation Center of Chemistry for Energy Materials University of Science & Technology of China Hefei Anhui 230029 P. R. China
3. Shanghai Synchrotron Radiation Facility Zhangjiang National Lab Shanghai Advanced Research Institute Chinese Academy of Science Shanghai 201204 P. R. China
4. Linhuan Coking Company Limited Huaibei Anhui 235141 P. R. China