1. School of Chemistry and Chemical Engineering
2. Key Laboratory for Thin Film and Microfabrication of the Ministry of Education
3. Shanghai Jiao Tong University
4. , China
5. Laboratory of Solid Lubrication
6. Voiland School of Chemical Engineering and Bioengineering
7. Washington State University
8. Pullman, USA
9. Beijing Synchrotron Radiation Facility
10. Institute of High Energy Physics
11. Chinese Academy of Sciences
12. Beijing 100039, China