1. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, No. 18, Tianshui Middle Road, Lanzhou 730000, China
2. University of Chinese Academy of Sciences, No. 19, Yuquan Road, Beijing 100049, China
3. Qingdao Center of Resource Chemistry & New Materials, No. 36, Jinshui Road, Qingdao 266071, China