1. College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, Hunan, P. R. China
2. Chang Jun High School of Changsha, Changsha 410083, Hunan, P. R. China
3. Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, Changsha 410083, Hunan, P. R. China
4. Hunan Provincial Key Laboratory of Chemical Power Sources, Changsha 410083, Hunan, P. R. China