Structural and tribological characterization of fluorinated graphene with various fluorine contents prepared by liquid-phase exfoliation | |
Department | 固体润滑国家重点实验室 |
Hou KM(侯凯明)1,2; Gong PW(公培伟)1,2; Wang JQ(王金清)1; Yang ZG(杨志刚)1; Wang ZF(王赵峰)1; Yang SR(杨生荣)1; Wang JQ(王金清); Yang SR(杨生荣) | |
2014 | |
Source Publication | RSC Advances |
ISSN | 2046-2069 |
Volume | 4Issue:100Pages:56543-56551 |
Abstract | The high strength and noble inertness of fluorinated graphene (FG) indicate very promising properties for its application in tribological applications to reduce friction and save energy, yet few works refer to its tribological performance, mostly due to the lack of an effective synthesis method and limited knowledge of FG. In this work, fluorinated graphene (FG) sheets with various fluorine contents are prepared from fluorinated graphite (FGi) by means of controllable chemical reaction with ethylenediamine (EDA) and liquid-phase exfoliation with N-methyl-2-pyrrolidone (NMP) in a one-pot synthesis. Transmission electron microscopy and atomic force microscopy analyses show that the obtained FG sheets possess large lateral size and ultrathin thickness (1.8–4.0 nm). Chemical characterizations indicate the C/F ratio can be readily tuned by adjusting the reaction temperature with EDA, which leads to defluorination and also substitution of a small amount of fluorine atoms by alkylidene amino groups. The tribological performance of FG samples as novel lubricant additives in base oil of polyalphaolefin-40 with different concentrations (0.1–0.4 mg mL_1) is investigated. The tribological tests suggest that the addition of FG at optimum concentration can greatly improve the anti-wear property of the base oil and there exists a strong proportional relationship between anti-wear ability and fluorine content. |
Subject Area | 材料科学与物理化学 |
DOI | 10.1039/c4ra10313k |
Funding Organization | the National Natural Science Foundation of China (Grant no. 51375474), the Science-Technology Foundation for Young Scientist of Gansu Province, China (Grant no. 145RJYA280);the “Funds for Distinguished Young Scientists of Gansu Province” |
Indexed By | SCI |
If | 3.840 |
Language | 英语 |
Funding Project | 聚合物摩擦学组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/6975 |
Collection | 固体润滑国家重点实验室(LSL) |
Corresponding Author | Wang JQ(王金清); Yang SR(杨生荣) |
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 100080, Peoples R China |
Recommended Citation GB/T 7714 | Hou KM,Gong PW,Wang JQ,et al. Structural and tribological characterization of fluorinated graphene with various fluorine contents prepared by liquid-phase exfoliation[J]. RSC Advances,2014,4(100):56543-56551. |
APA | Hou KM.,Gong PW.,Wang JQ.,Yang ZG.,Wang ZF.,...&杨生荣.(2014).Structural and tribological characterization of fluorinated graphene with various fluorine contents prepared by liquid-phase exfoliation.RSC Advances,4(100),56543-56551. |
MLA | Hou KM,et al."Structural and tribological characterization of fluorinated graphene with various fluorine contents prepared by liquid-phase exfoliation".RSC Advances 4.100(2014):56543-56551. |
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