1. State Key Laboratory of Solid LubricationLanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhou730000P. R. China
2. School of Mechanical EngineeringJiangnan UniversityWuxi214122P. R. China
3. Center of Materials Science and Optoelectronics EngineeringUniversity of Chinese Academy of SciencesBeijing100049P. R. China
4. Jiangsu Province Key Laboratory of Advanced Food Manufacturing Equipment and TechnologyJiangnan UniversityWuxi214122P. R. China
5. School of Chemistry and Chemical EngineeringShihezi UniversityShihezi832003P. R. China