Research Article Ruiyun Li, Ruiyun Li orcid.org/0000-0002-0520-4753 State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Science, Lanzhou, 70000 China Institute of Materials Science and Engineering, Lanzhou University, Lanzhou, 730000 China Search for more papers by this author Xing Yang, Xing Yang State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Science, Lanzhou, 70000 China Search for more...