High-performance lubricant additives based on modified graphene oxide by ionic liquids | |
Fan XQ(樊小强)1,2![]() ![]() | |
刊名 | Journal of Colloid and Interface Science
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2015 | |
卷号 | 452页码:98-108 |
关键词 | Graphene oxide Graphene Modification Ionic liquids Tribology |
ISSN号 | 0021-9797 |
通讯作者 | 王立平 |
英文摘要 | Graphene oxide (GO) is a layered material bearing a variety of oxygen-containing functional groups on its basal planes and edges, which allow it as a substrate to conduct a variety of chemical transformations. Here modified graphene oxide (MGO) was prepared using alkyl imidazolium ionic liquids (ILs) (1-butyl-3-methylimidazolium tetrafluoroborate (LB104), 1-butyl-3-methyl imidazolium hexafluorophosphate (LP104) and 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl) amide (LF106)) via epoxide ring-opening reaction, cation-π stacking or van der Waals interactions, with LB104 modified graphene (MG) exfoliated from graphite rod by a moderate electrochemical method as a comparison. The stability and tribological properties of MGO and MG as multialkylated cyclopentanes (MACs) additives were investigated in detail. The results show that GO is converted into graphene through the chemical modification using ILs, and MGO with good dispersion and stability in MACs significantly improves the tribological performance (friction and wear were reduced about 27% and 74% with pure MACs as a comparison, respectively). The excellent tribological properties are attributed to the formation of an ILs-containing graphene-rich tribofilm on the sliding surfaces, which as the third body can prevent the sliding surfaces from straight asperity contact and improve friction reducing and anti-wear behaviors. |
学科主题 | 材料科学与物理化学 |
收录类别 | SCI |
资助信息 | National Natural Science Foundation of China (Grants No. 11172300;21373249) |
语种 | 英语 |
WOS记录号 | WOS:000355068900014 |
内容类型 | 期刊论文 |
源URL | [http://210.77.64.217/handle/362003/18449] ![]() |
专题 | 兰州化学物理研究所_固体润滑国家重点实验室 |
作者单位 | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Fan XQ,Wang LP. High-performance lubricant additives based on modified graphene oxide by ionic liquids[J]. Journal of Colloid and Interface Science,2015,452:98-108. |
APA | Fan XQ,&Wang LP.(2015).High-performance lubricant additives based on modified graphene oxide by ionic liquids.Journal of Colloid and Interface Science,452,98-108. |
MLA | Fan XQ,et al."High-performance lubricant additives based on modified graphene oxide by ionic liquids".Journal of Colloid and Interface Science 452(2015):98-108. |
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