1. School of Physical Science and Technology
2. Lanzhou University
3. Lanzhou
4. China
5. Laboratory of Clean Energy Chemistry and Materials
6. State Key Laboratory of Solid Lubrication
7. Lanzhou Institute of Chemical Physics
8. Chinese Academy of Sciences
9. School of Physics and Electronic Engineering
10. Northwest Normal University
11. School of Materials Science and Engineering
12. Shanghai University
13. Shanghai
14. P. R. China