Synergistic Effect of Hybrid Carbon Nanotube-Graphene Oxide as Nanoadditive Enhancing the Frictional Properties of Ionic Liquids in High Vacuum

被引：116

作者：

Zhang, Lili ^{[1
,2
]}

Pu, Jibin ^{[1
]}

Wang, Liping ^{[1
]}

Xue, Qunji ^{[1
]}

机构：

[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Tianshui Middle Rd, Lanzhou 730000, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100039, Peoples R China

来源：

ACS APPLIED MATERIALS & INTERFACES | 2015年 / 7卷 / 16期

基金：

中国国家自然科学基金;

关键词：

ionic liquids; vacuum; graphene oxide; multiwalled carbon nanotubes; synergistic effect; nanoadditive; tribology; NANOPARTICLES; LUBRICANT; PLATELETS; PRESSURE; COATINGS; BEHAVIOR;

D O I：

10.1021/acsami.5b00598

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A remarkable,synergetic., effect between the graphene oxide, (GO) layers anti multiwalled carbon nanotubes (MWCNTs) in improving friction and wear on sliding diamondlike carbon (DLC) surfaces under high vacuum condition (10(-5) Pa) and low or high applied load is demonstrated. In tests with sliding DLC surfaces, ionic liquid solution that contains Small,amounts of GO and MWCNTs exhibited the lowest specific friction coefficient and wear rate under all of the sliding conditions. Optical microscope images of the wear scar of a steel ball Showed that GO/MWCNT composites exhibited higher antiwear capability than individual MWCNTs and GO did. Transmission electron microscopy images of nanoadditives after friction testing showed that MWCNTs support the,GO layers like pillars and prevent assembly between the GO layers. Their synergistic,effect considerably enhances IL-GO/MWCNT composites.

引用

页码：8592 / 8600

页数：9

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