1. College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China
2. Shandong Laboratory of Advanced Materials and Green Manufacturing at Yantai, Yantai 264006, China
3. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
4. Qingdao Key Laboratory of Lubrication Technology for Advanced Equipment, Qingdao Center of Resource Chemistry & New Materials, Qingdao 266000, China