supported by the National Natural Science Foundation of China(52075224,21975109,51975252,and 52075225);Natural Science Foundation of Jiangsu Province(BK20201423);Foundation of State Key Laboratory of Solid Lubrication(LSL-1801);Tribology Science Fund of State Key Laboratory of Tribology(SKLTKF18B03).
Graphene(G),as a typical two-dimensional material,is often used as an additive for liquid lubricants.However,graphene is mostly added to liquid lubricants in a one-time manner in friction;it mainly exists in the form ...