1. Guizhou Provincial Key Laboratory of Computational Nano-Material Science, Institute of Applied Physics, Guizhou Education University, Guiyang, Guizhou 550018, China
2. School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, China
3. Department of Chemistry, Faculty of Science, University of Helsinki, P.O. Box 55, A. I. Virtasen aukio 1, Helsinki, FI-00014 Finland
4. College of Chemical Engineering, Shijiazhuang University, Shijiazhuang, Hebei 050035, China
5. Department of Neurology, University of California, Irvine, California 92697, United States