1. Institute of Molecular Science
2. Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province
3. Shanxi University
4. Taiyuan 030006
5. P. R. China
6. State Key Laboratory of Mechanics and Control of Mechanical Structures
7. Key Laboratory for Intelligent Nano Materials and Devices of Ministry of Education and Institute of Nano Science
8. Nanjing University of Aeronautics and Astronautics
9. Nanjing 210016
10. China
11. School of chemistry and chemical engineering
12. Yulin University
13. Yulin