1. School of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, P. R. China
2. School of Materials Science and Engineering, Computational Centre for Molecular Science, Institute of New Energy Material Chemistry, Nankai University, Tianjin 300350, P. R. China
3. College of Physics and Information Technology, Shaanxi Normal University, Xian 710119, Shaanxi, P. R. China
4. Department of Analytical Chemistry, Institute of Chemistry, State University of São Paulo (UNESP), 14801-970 Araraquara, SP, Brazil
5. Faculty of Science, Kunming University of Science and Technology, Kunming 650093, Yunnan, P. R. China