Ionic liquids from amino acids: fully green fluid lubricants for various surface contacts | |
Department | 固体润滑国家重点实验室 |
Song ZH(宋增红)1,2; Liang YM(梁永民)1; Fan MJ(凡明锦)1; Zhou F(周峰)1; Liu WM(刘维民)1; Fan MJ(凡明锦); Zhou F(周峰) | |
2014 | |
Source Publication | RSC Advances |
ISSN | 2046-2069 |
Volume | 4Issue:37Pages:19396-19402 |
Abstract | Five tetrabutylammonium-based amino acid ionic liquids (AAILs), tetrabutylammonium serine ([N4444][Ser]), tetrabutylammonium threonine ([N4444][Thr]), tetrabutylammonium valine ([N4444][Val]), tetrabutylammonium leucine ([N4444][Leu]) and tetrabutylammonium lysine ([N4444][Lys]) have been easily prepared by the neutralization of tetrabutylammonium hydroxide ([N4444][OH]) with the five corresponding amino acids. These AAILs only contain the elements C, N, O and H in their structures, so they are more environmentally friendly than conventional phosphorus-, halogen- or sulfur-containing lubricants. The preparation process of these AAILs is simple and also fully green, because no other byproducts except water were produced during the whole process. The AAILs were evaluated as green lubricants for various surface contacts, such as steel/steel, steel/copper and steel/aluminum, using an Optimol SRV-IV oscillating reciprocating friction and wear tester at room temperature (RT). Due to their halogen-free character, these AAILs have a higher hydrolysis stability and a far lower corrosion level than the halogen-containing lubricants imidazolium ILs, 1-butyl-3-methylimidazolium tetrafluoroborate ([C4mim][BF4]) and 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([C6mim][NTf2]), which were also tested. The tribotest results revealed that these AAILs could act as lubricants to effectively reduce friction and wear of all sliding pairs, and they even showed superior tribological performances compared to poly-alpha-olefin (PAO40) and [C6mim][NTf2] under the experimental conditions. The worn surfaces of the lower discs were analyzed by X-ray photoelectron spectrometry (XPS). Based on the XPS results, it can be concluded that the good lubricating properties of the AAILs are attributed to the formation of physically adsorbed layers on the metal surfaces during the rubbing process. |
Subject Area | 材料科学与物理化学 |
DOI | 10.1039/c3ra47644h |
Funding Organization | the “973” Program (2013CB632301);NSFC (51105353;21173243;21125316) |
Indexed By | SCI |
If | 3.840 |
Language | 英语 |
Funding Project | 材料表面与界面行为研究组;空间润滑材料组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/6851 |
Collection | 固体润滑国家重点实验室(LSL) |
Corresponding Author | Fan MJ(凡明锦); Zhou F(周峰) |
Affiliation | 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 |
Recommended Citation GB/T 7714 | Song ZH,Liang YM,Fan MJ,et al. Ionic liquids from amino acids: fully green fluid lubricants for various surface contacts[J]. RSC Advances,2014,4(37):19396-19402. |
APA | Song ZH.,Liang YM.,Fan MJ.,Zhou F.,Liu WM.,...&周峰.(2014).Ionic liquids from amino acids: fully green fluid lubricants for various surface contacts.RSC Advances,4(37),19396-19402. |
MLA | Song ZH,et al."Ionic liquids from amino acids: fully green fluid lubricants for various surface contacts".RSC Advances 4.37(2014):19396-19402. |
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宋增红 RSC 氨基酸.pdf(649KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
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