Covalently attached graphene–ionic liquid hybrid nanomaterials: synthesis, characterization and tribological application

Gusain, Rashi; Mungse, Harshal P.; Kumar, N.; Ravindran, T. R.; Pandian, Ramanathaswamy; Sugimura, Hiroyuki; Khatri, Om P.

doi:10.1039/c5ta08640j

Cited by 132 publications

(49 citation statements)

References 64 publications

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“…(a), the C1s of GO and GO‐IL was analyzed using multi‐Gaussian peak fitting. The peaks at 284.6, 286.5, 287.4 and 288.5 eV appear in the XPS spectra of both GO and GO‐IL, which is attributed to C*–C, C*–O, C*=O and O–C*=O, respectively . Compared with GO, the C1s spectrum of GO‐IL shows a new peak at 285.7 eV, corresponding to C–N, which further provides evidence of the adsorption of AMICl on the surface of GO…”

Section: Resultsmentioning

confidence: 81%

Ionic liquid functionalized graphene oxide for enhancement of styrene‐butadiene rubber nanocomposites

Yin

Zhang

et al. 2016

Polymers for Advanced Techs

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Ionic liquid 1‐allyl‐3‐methyl‐imidazolium chloride (AMICl) is used to fine‐tune the surface properties of graphene oxide (GO) sheets for fabricating ionic liquid functionalized GO (GO‐IL)/styrene‐butadiene rubber (SBR) nanocomposites. The morphology and structure of GO‐IL are characterized using atomic force microscope, X‐ray diffraction, differential scanning calorimetry, X‐ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, UV‐vis spectra and Raman spectra. The interaction between GO and AMICl molecules as well as the effects of GO‐IL on the mechanical properties, thermal conductivity and solvent resistance of SBR are thoroughly studied. It is found that AMICl molecules can interact with GO via the combination of hydrogen bond and cation–π interaction. GO‐IL can be well‐dispersed in the SBR matrix, as confirmed by X‐ray diffraction and scanning electron microscope. Therefore, the SBR nanocomposites incorporating GO‐IL exhibit greatly enhanced performance. The tensile strength, tear strength, thermal conductivity and solvent resistance of GO‐IL/SBR nanocomposite with 5 parts per hundred rubber GO‐IL are increased by 505, 362, 34 and 31%, respectively, compared with neat SBR. This method provides a new insight into the fabrication of multifunctional GO‐based rubber composites. Copyright © 2016 John Wiley & Sons, Ltd.

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Section: Resultsmentioning

confidence: 81%

Ionic liquid functionalized graphene oxide for enhancement of styrene‐butadiene rubber nanocomposites

Yin

Zhang

et al. 2016

Polymers for Advanced Techs

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“…IL-graphene hybrid ionic nanomaterials were developed by Gusain et al [50] by generating covalent bonds between the imidazolium rings of the ILs and graphene. This covalent functionalization enabled the dispersion of graphene in polyethyleneglycol, used as base lubricant, thus reducing both friction coefficients and wear rates by inhibiting material loss.…”

Section: Ionanocarbon Lubricantsmentioning

confidence: 99%

Ionanocarbon Lubricants. The Combination of Ionic Liquids and Carbon Nanophases in Tribology

et al. 2017

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The present overview will focus on the tribological applications of what we have called ionanocarbon lubricants, that is, the combination of carbon nanophases (graphene, carbon nanotubes, nanodiamonds, carbon nanodots) and room-temperature ionic liquids in new dispersions, blends, or modified nanostructures and their use in tribology, lubrication, and surface engineering as friction-reducing, antiwear, and surface-protecting agents in thin films and composite materials. Further research lines and factors that limit the practical applications of the outstanding research results are also highlighted. The very recent results in these lines of research make this a necessary brief review.

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“…Gusain et al [94] synthesized graphene-ionic liquid (Gr-IL) hybrid nanomaterials by reducing GO and covalently grafting imidazole rings. Elemental analysis of the wear traces of the sample showed that the friction chemical film was formed during the lubrication process of the hybrid nanomaterial, and the carbonaceous/graphene friction belt played a key role in reducing the friction.…”

Section: Field Of Lubricating Oilmentioning

confidence: 99%

Research Progress in Application of 2D Materials in Liquid-Phase Lubrication System

Liu

Zhou

Xiao³

et al. 2018

Materials

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Two-dimensional (2D) materials are ultra-thin crystals with layered structures that have a monolayer and multiple layers of atomic thickness. Due to excellent performance, 2D materials represented by graphene have caused great interest from researchers in various fields, such as nano-electronics, sensors, solar cells, composite materials, and so on. In recent years, when graphite was used for liquid phase lubrication, there have been many disadvantages limiting its lubrication properties, such as stable dispersion, fluidity and so on. Therefore, 2D materials have been used as high-performance liquid-phase lubricant additives, which become a perfect entry point for high-performance nano-lubricants and lubrication applications. This review describes the application of 2D materials as additives in the field of liquid-phase lubrication (such as lubricating oil and water lubrication) in terms of experimental content, lubrication performance, and lubrication mechanism. Finally, the challenges and prospects of 2D materials in the lubrication field were also proposed.

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Covalently attached graphene–ionic liquid hybrid nanomaterials: synthesis, characterization and tribological application

Abstract: Covalently interacted graphene–ionic liquid hybrid nanomaterials as lubricant additives significantly improve lubrication properties by reducing friction and wear.

Cited by 132 publications

References 64 publications

Ionic liquid functionalized graphene oxide for enhancement of styrene‐butadiene rubber nanocomposites

Ionic liquid functionalized graphene oxide for enhancement of styrene‐butadiene rubber nanocomposites

Ionanocarbon Lubricants. The Combination of Ionic Liquids and Carbon Nanophases in Tribology

Research Progress in Application of 2D Materials in Liquid-Phase Lubrication System

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