Tribological behavior of dodecylamine functionalized graphene nanosheets dispersed engine oil nanolubricants

Paul, Gayatri; Shit, Subhasis; Hirani, Harish; Kuila, Tapas; Murmu, Naresh Chandra

doi:10.1016/j.triboint.2018.11.012

Cited by 82 publications

(47 citation statements)

References 50 publications

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“…Further, they suggested that the friction and wear characteristics of lubricant with modified MWCNT showed better tribological behavior due to their enhanced stability. Gayatri et al 18 studied the tribological behavior of dodecylamine functionalized graphene nanosheets‐based lubricating oil using UMT‐2 tribotester. Authors have concluded that SAE 5W30‐based nanolubricant was helpful to reduce the coefficient of friction (COF) by 40% in comparison to the base engine oil.…”

Section: Introductionmentioning

confidence: 99%

Effects of hexagonal boron nitride based nanofluid on the tribological and performance, emission characteristics of a diesel engine: An experimental study

Ramteke

Chelladurai

2020

Engineering Reports

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In recent years, nanoparticles have attracted researchers attention due to its wear and friction reduction characteristics in lubricating oil. Hence, it is of utmost importance to consider nanoparticles additive in the lube oil and study its impact on the tribological and performance characteristics of mechanical systems. Therefore, this paper intends to explore the impact of conventional and hexagonal boron nitride (hBN) nanoparticles‐based lubricant on the wear of engine components, performance, and emission characteristics of a diesel engine. The different concentration namely, 0.5 wt.%, 0.75 wt.%, and 1 wt.% BN‐based nanofluids were formulated. The formulated nanofluids were characterized by UV‐spectroscopy and differential scanning calorimetry (DSC) for dispersion and heat capacity analyses respectively. From the characterization results, 1wt.% BN nanofluid was found stable and well dispersed and therefore, considered for further experimental analysis. The outcomes of the present study revealed that 1 wt.% BN‐based nanofluid shown better anti‐wear properties and improvement in performance, emission characteristics of the diesel engine. The obtained results will be useful for the lubricant industry to think toward formulating nanoparticles‐based lubricating oil.

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Section: Introductionmentioning

confidence: 99%

Effects of hexagonal boron nitride based nanofluid on the tribological and performance, emission characteristics of a diesel engine: An experimental study

Ramteke

Chelladurai

2020

Engineering Reports

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“…It is necessary to reduce friction, make the mechanical parts wear‐resistant, and extend its service. [ 1 ] And with the global environmental concern, there is increasing interest in improving the energy efficiency of all types of machines. This in turn leads to the need to reduce friction in most lubricated machine parts.…”

Section: Introductionmentioning

confidence: 99%

Synergistic Lubricating Behaviors of 3D Graphene and 2D Hexagonal Boron Nitride Dispersed in PAO4 for Steel/Steel Contact

Geng

et al. 2020

Adv Materials Inter

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Nanomaterials as oil‐based lubricant additives improve the tribological properties of oils, and its enormous potential in oil‐based applications has attracted increasing attention. However, 2D materials have limited applications in industry due to its high price. 3D graphene (3D Gr) has become a substitute of 2D graphene because of its low price. Hexagonal boron nitride (h‐BN) is known as white graphene and is a material with potential lubrication applications. In this paper, the combination of the two different dimensions materials not only plays a significant role in reducing environmental pollution, but also exerts excellent properties of both materials. The results show that the mixed‐dimensional nanomaterials have good macroscopic lubricity under oil.

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“…To overcome this difficulty, researchers are either functionalizing graphene or utilising stabilising agents for the stable dispersion in the conventional lubricant. 11 Functionalization of graphene can include the use of several chemical compounds, such as alkylation or amination reagent. 12,13 Literature studies showed good stable and significant reduction in coefficient of friction and wear by destroying the intrinsic structure of graphene.…”

Section: Introductionmentioning

confidence: 99%

Effects of ionic liquid on the dispersion and tribological property of graphene lubricant

Wei

Zhao

Zhang

et al. 2020

Lubrication Science

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Graphene has attracted attention in the field of lubrication based on its excellent properties. However, the difficulty of graphene dispersion in base oil hinders its development. In this paper, the effects of ionic liquid as additives on the dispersion and lubricating properties of graphene lubricants were investigated. Results showed that after adding ionic liquid, the graphene could be still stably dispersed in base oil even after 30 days. Molecular simulation study showed that ionic liquid tended to insert into graphene layers, and promoted the affinity of graphene and base oil. Then, the tribological friction behaviour of ionic liquid/graphene lubricants was investigated by concentration of ionic liquid, applied load and sliding velocity. Results showed that the friction and wear property was improved better after adding ionic liquid. This work provides a new method to enhance the stability of the graphene lubricating oil, and thus broaden the graphene in tribological application.

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Tribological behavior of dodecylamine functionalized graphene nanosheets dispersed engine oil nanolubricants

Cited by 82 publications

References 50 publications

Effects of hexagonal boron nitride based nanofluid on the tribological and performance, emission characteristics of a diesel engine: An experimental study

Effects of hexagonal boron nitride based nanofluid on the tribological and performance, emission characteristics of a diesel engine: An experimental study

Synergistic Lubricating Behaviors of 3D Graphene and 2D Hexagonal Boron Nitride Dispersed in PAO4 for Steel/Steel Contact

Effects of ionic liquid on the dispersion and tribological property of graphene lubricant

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