1. School of materials engineering
2. Lanzhou Institute of Technology
3. Lanzhou 730050
4. People's Republic of China
5. State Key Laboratory of Solid Lubrication
6. Lanzhou Institute of Chemical Physics
7. Chinese Academy of Sciences
8. Lanzhou 730000
9. College of Engineering
10. Lishui University
11. Lishui 323000
12. Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials
13. Hubei University
14. Wuhan 430062