Thermal stability enhancement mechanism of engine oil using hybrid MoS2/h-BN nano-additives with ionic liquid modification

Jiang, Hua; Hou, Xiaofan; Dearn, Karl D.; Su, Da; Ali, Mohamed Kamal Ahmed

doi:10.1016/j.apt.2021.10.015

Cited by 22 publications

(13 citation statements)

References 40 publications

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“…170 Other studies have shown that ILs are susceptible to strongly interacting with nanoparticles, and a membrane with catalytic properties will be formed on the surface of nanoheterojunction, which is helpful to delay the oxidation of nano-lubricants at high temperature, and ultimately improve the thermal stability of lubricating oil. 171,172 3.2.2 Two-dimensional tungsten disulde (WS 2 ). As a typical member of the TMD family, the 2H phase WS 2 is also a hexagonal honeycomb lattice with a layered molecular This journal is © The Royal Society of Chemistry 2023 structure, which possesses a very low shear strength along the (002) crystal plane and a high bearing capacity perpendicular to the (002) crystal plane.…”

Section: Transition Metal Dichalcogenides (Tmds)mentioning

confidence: 99%

Recent advances of two-dimensional lubricating materials: from tunable tribological properties to applications

Zhang

Ren

2023

J. Mater. Chem. A

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Section: Transition Metal Dichalcogenides (Tmds)mentioning

confidence: 99%

Recent advances of two-dimensional lubricating materials: from tunable tribological properties to applications

Zhang

Ren

2023

J. Mater. Chem. A

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“…Nanoparticles are mainly utilized in ILs to observe the reaction in intermolecular structure, which changes the van der Waals, electrostatic, and hydrogen bonding in the base oil. 71 Various self-organized structures are formed in the ILs based on the nanoparticles to counter these intermolecular reactions. The self-oriented structures include colloidal glass, gels, liquid crystal, emulsions, ionic liquid surface-functionalized nanoparticles.…”

Section: Synthesis Of Oil-soluble Ilsmentioning

confidence: 99%

A review of recent advances of ionic liquids as lubricants for tribological and thermal applications

Ali

Abdelkareem

Chowdary

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part J:

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The novel characteristics of ionic liquids (ILs) led to an improved tribological and thermal performance. This article discusses current progress in developing ILs as neat lubricants or additives in lube oils, with a focus on ILs chemistry, synthesis, miscibility, and other relevant rheological, thermal, and tribological properties at macro to nanoscales. This article also introduces a review of lubrication mechanisms based on the tribofilm formed on the rubbing interfaces owing to tribochemical reactions among the ILs, base oil, and solid bodies, which shows key insights into anti-wear properties. ILs exhibited superior anti-wear properties compared to fully formulated oils. Notably, there was no symmetry between the friction results of ILs and their wear counterpart. Furthermore, the main challenges to further improve ILs performance for tribological applications are highlighted. Eventually, prospects for ILs tribology are suggested, which will guide the development and synthesis of ILs-based lubricants for tribological applications.

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“…In order to improve the friction reduction and wear resistance properties of ceramic tribocomponents, techniques such as water-based lubricant additives, − surface texturing, , coatings, − as well as composite ceramics − are reported in recent years. Particularly, the addition of nanoparticles − is one of the most effective approaches because of the improvement of viscosity and the synergetic effect of nanoparticles. Among the variety of nanoparticles, graphene has been paid considerable attention owing to its remarkable lubricity. − For instance, graphene-enhanced nanofluids were synthesized by Liang et al and experimental results demonstrated that FC and wear were significantly reduced by 81.3 and 61.8%, respectively.…”

Section: Introductionmentioning

confidence: 99%

Silver/Graphene Nanocomposite as an Additive for Aqueous Lubrication

Wang

Zhang

et al. 2023

ACS Appl. Nano Mater.

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From the perspective of economic and environmental protection, water-based lubrication is one of the most promising technologies. However, the weak lubricity of water impedes its wide application in the ceramic bearing industry. Herein, a silver/graphene nanocomposite (SGN), as an additive with good dispersity in water, was synthesized through electrostatic adsorption and in situ reduction after preparing the sulfonated graphene oxide. It was found that the tribological performance of ceramic components was significantly improved with the addition of the SGN in water. The experimental results indicated that a 0.2 wt % SGN aqueous solution contributed toward 52.2 and 54.2% of improvement in friction reduction and wear resistance, respectively, at 150 rpm and 3 N. In addition, frictional tests at a long duration of 3600 s were carried out to investigate the lubrication of the mechanism. The worn surface analysis demonstrated that the collapsed Ag nanoparticles adhered to the rubbing surface to produce a protective coating and repair worn surfaces. The superior lubricity of the SGN might be attributed to the synergistic effects of rolling of Ag nanoparticles and interlayer shearing of graphene, which worked at interfaces between components during sliding.

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Thermal stability enhancement mechanism of engine oil using hybrid MoS2/h-BN nano-additives with ionic liquid modification

Cited by 22 publications

References 40 publications

Recent advances of two-dimensional lubricating materials: from tunable tribological properties to applications

Recent advances of two-dimensional lubricating materials: from tunable tribological properties to applications

A review of recent advances of ionic liquids as lubricants for tribological and thermal applications

Silver/Graphene Nanocomposite as an Additive for Aqueous Lubrication

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