Fabrication of carbon dots@2D CuCo-MOF composites as lubricating additives in pentaerythritol ester for enhanced tribological properties at elevated temperatures

doi:10.1016/j.apsusc.2023.158477

IMR OpenIR

	Fabrication of carbon dots@2D CuCo-MOF composites as lubricating additives in pentaerythritol ester for enhanced tribological properties at elevated temperatures
	Wang, Junhai 1,2; Tian, Dongrun 1; Yan, Tingting 1; Liang, Wenfeng 1; Zhang, Lixiu 1; Li, Xinran 1; Gao, Siyang 2
通讯作者	Wang, Junhai(jhwang@sjzu.edu.cn) ; Li, Xinran(lixr@sjzu.edu.cn) ; Gao, Siyang(sygao@imr.ac.cn)
	2023-12-30
发表期刊	APPLIED SURFACE SCIENCE
ISSN	0169-4332
卷号	641 页码:13
摘要	In this study, we successfully synthesized CD@CuCo-MOF composites, which are composed of ultrathin twodimensional (2D) nanosheets of metal-organic framework (MOF) doped with carbon dots (CDs). The synthesis process involved hydrothermal and ultrasonically assisted self-assembly with a proper solvent ratio. The composites were then dispersed into pentaerythritol ester (PETE) with the aid of ultrasonic treatment. We thoroughly evaluated the physicochemical features and tribological properties of the CD@CuCo-MOF composites using advanced testing and characterization techniques including XRD, Raman, FTIR, TG, XPS, FIB-TEM and so on. The results demonstrated that the addition of CD@CuCo-MOF resulted in a 61.1 % reduction in the coefficient of friction (COF) at a concentration of 0.1 wt% when compared to the base oil at room temperature. With the rise in temperature, CD@CuCo-MOF exhibited excellent lubricating properties due to its hybrid inorganic-organic structure and interlayer sliding effect. This led to a reduction of 59.2 % and 42.9 % in the mean COF compared to PETE oil at temperatures of 100 degrees C and 200 degrees C. This enhancement in the tribological performance of CD@CuCo-MOF could be attributed to several factors, including its superior dispersion stability, excellent lubricating properties, and involvement in the formation of a tribofilm. The tribofilm formed from a combination of CDs, CuCo-MOF, metal oxides, carbides, and nitrides promoted the rearrangement of the contact surface, thereby minimizing the friction and wear between the rubbing surfaces. These findings hold significant guiding implications for advancing the development of potential-controlled lubrication using MOFs doped with CDs across a wide temperature range.
关键词	CD@CuCo-MOF Oil additives Elevated temperatures Tribofilm Lubrication
资助者	National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Natural Science Foundation Project of Liaoning Province ; Xingliao Talent Program of Liaoning Province ; Tribology Science Fund of State Key Laboratory of Tribology ; Foundation of Liaoning Key Laboratory of Aero-engine Material Tribology
DOI	10.1016/j.apsusc.2023.158477
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51805336] ; National Natural Science Foundation of China[61973224] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDC04040400] ; Natural Science Foundation Project of Liaoning Province ; Xingliao Talent Program of Liaoning Province[SKLTKF16B07] ; Tribology Science Fund of State Key Laboratory of Tribology[LKLAMTF202205] ; Foundation of Liaoning Key Laboratory of Aero-engine Material Tribology[2023-MS-225] ; [XLYC2007186]
WOS研究方向	Chemistry ; Materials Science ; Physics
WOS类目	Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:001124277500001
出版者	ELSEVIER
引用统计	被引频次：13[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/177127
专题	中国科学院金属研究所
通讯作者	Wang, Junhai; Li, Xinran; Gao, Siyang
作者单位	1.Shenyang Jianzhu Univ, Sch Mech Engn, Shenyang 110168, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Wang, Junhai,Tian, Dongrun,Yan, Tingting,et al. Fabrication of carbon dots@2D CuCo-MOF composites as lubricating additives in pentaerythritol ester for enhanced tribological properties at elevated temperatures[J]. APPLIED SURFACE SCIENCE,2023,641:13.
APA	Wang, Junhai.,Tian, Dongrun.,Yan, Tingting.,Liang, Wenfeng.,Zhang, Lixiu.,...&Gao, Siyang.(2023).Fabrication of carbon dots@2D CuCo-MOF composites as lubricating additives in pentaerythritol ester for enhanced tribological properties at elevated temperatures.APPLIED SURFACE SCIENCE,641,13.
MLA	Wang, Junhai,et al."Fabrication of carbon dots@2D CuCo-MOF composites as lubricating additives in pentaerythritol ester for enhanced tribological properties at elevated temperatures".APPLIED SURFACE SCIENCE 641(2023):13.