Structural engineering design of carbon dots for lubrication  

作　　者：Chuang He Shuang E Honghao Yan Xiaojie Li 

机构地区：[1]State Key Laboratory of Structural Analysis for Industrial Equipment,Dalian University of Technology,Dalian 116024,China [2]Research Center for Analytical Sciences,Northeastern University,Shenyang 110819,China

出　　处：《Chinese Chemical Letters》2021年第9期2693-2714,共22页中国化学快报（英文版）

基　　金：financial support from the National Natural Science Foundation of China(Nos.11672068,10872044 and 11672067)。

摘　　要：Carbon dots(CDs)have opened up a new field of carbon nanomaterials and successively attracted increasing attention since their discovery in 2004.Owing to their ultrasmall size,tunable surface functional groups,excellent dispersibility,attractive stability,low toxicity,environmental friendliness,facile synthesis and low-cost precursors,CDs have been developed as green and promising frictionreducing and anti-wear materials in lubrication science,applied to energy conservation and extension of mechanical service life in recent years.However,there are few reviews focusing on the application of CDs in the important field of lubrication.In this review,we comprehensively summarize the development of CDs in lubrication for the first time.Firstly,three strategies for structural engineering design of CDs to improve their tribological characteristics are fully analyzed,in terms of size and shape control,surface modification and heteroatom doping.Secondly,the advance in lubrication application of CDs,including CDs as additives for lubricants,greases,gel and magnetorheological fluids as well as CDs as lubricating coatings,is systematically highlighted.Thirdly,the lubricating mechanisms of CDs as additives are introduced in detail.Furthermore,the remaining major challenges and opportunities for CDs in lubrication field are discussed and outlined.

关 键 词：Carbon dots LUBRICATION Tribological characteristics Lubricating mechanism 

分 类 号：TQ127.11[化学工程—无机化工] TB383.1[一般工业技术—材料科学与工程]