1. State Key Laboratory of Solid Lubrication, National Engineering Research Center for Fine Petrochemical Intermediates, Lanzhou Institute of Chemical Physics, CAS, Lanzhou, 730000, China
2. University of Chinese Academy of Sciences, Beijing, 100049, China
3. Qingdao Key Laboratory of Lubrication Technology for Advanced Equipment, Qingdao Center of Resource Chemistry and New Materials, Qingdao 266100, Shandong, China