The characterization analysis of multi walled carbon nanotubes coated with carboxylic group compounds to improve its dispersion properties in mineral base engine oils

Tonk, Ravinder

doi:10.1016/j.matpr.2020.09.113

Cited by 3 publications

(2 citation statements)

References 11 publications

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“…Nanomaterials have been studied intensively as additives for promoting lubricant capabilities. The application of nanoparticles in the engine's lubrication system showed a great deal of boosting the overall engine performance in many studies [20][21][22][23][24]. Nanolubricants have a major effect on promoting the wear process, which is the durability of the engine parts, with a considerable role in engine thermal efficiency [25].…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in Preparation and Testing Methods of Engine-Based Nanolubricants: A State-of-the-Art Review

et al. 2021

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Reducing power losses in engines is considered a key parameter of their efficiency improvement. Nanotechnology, as an interface technology, is considered one of the most promising strategies for this purpose. As a consumable liquid, researchers have studied nanolubricants through the last decade as potential engine oil. Nanolubricants were shown to cause a considerable reduction in the engine frictional and thermal losses, and fuel consumption as well. Despite that, numerous drawbacks regarding the quality of the processed nanolubricants were discerned. This includes the dispersion stability of these fluids and the lack of actual engine experiments. It has been shown that the selection criteria of nanoparticles to be used as lubricant additives for internal combustion engines is considered a complex process. Many factors have to be considered to investigate and follow up with their characteristics. The selection methodology includes tribological and rheological behaviours, thermal stability, dispersion stability, as well as engine performance. Through the last decade, studies on nanolubricants related to internal combustion engines focused only on one to three of these factors, with little concern towards the other factors that would have a considerable effect on their final behaviour. In this review study, recent works concerning nanolubricants are discussed and summarized. A complete image of the designing parameters for this approach is presented, to afford an effective product as engine lubricant.

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Section: Introductionmentioning

confidence: 99%

Recent Advances in Preparation and Testing Methods of Engine-Based Nanolubricants: A State-of-the-Art Review

et al. 2021

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“…Zin et al [30] reported that the blending of Single-Walled Carbon Nano-Horns (SWCNHs) at 0.01 vol.% in the engine oil reduces the friction by 12% in boundary regime. Tonk [31] investigated the impact of multi-walled carbon nanotubes (MWCNTs) on the viscoelastic and thermophysical properties of engine oils. The MWCNTs when used as ZnO/ MWCNTs hybrids in engine oils were reported to reduce the friction and wear by 32% and 74%, respectively [32].…”

Section: Introductionmentioning

confidence: 99%

Potential of CuS and CuO nanoparticles for friction reduction in piston ring–liner contact

Jain

Kumar

Thakre

2021

Tribology - Materials, Surfaces & Interfaces

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An experimental study on the use of Cu nanofluids as engine oils for reduction of friction in piston ring-liner contact is presented. The Cu nanofluids were prepared using CuS and CuO nanoparticles and blending them in 0.1-6% concentration by weight in the commercial engine oils. The Cu nanoparticles were synthesised and characterised after mixing with the lubricant for their physico-chemical characteristics. The experiments were performed on a reciprocating tribo-tester using actual piston rings and the liners as test specimens. Experiments were performed to investigate the effect of nanoparticle concentration with the change of contact loads and reciprocating frequency on the coefficient of friction. The study reveals that the Cu nanoparticles blended in the engine lubricating oils can significantly reduce friction between piston ring-liner contact, desirable for fuel economy improvement. The Cu nanoparticles are compatible with base lubricants and result in significant friction reduction. The CuS nanoparticles performed significantly better than the CuO nanoparticles.

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Correlation between preparation techniques and frictional properties of cellulose nanocrystals as additives in water-based lubricants

Zhang,

Fan,

et al. 2024

Industrial Crops and Products

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The characterization analysis of multi walled carbon nanotubes coated with carboxylic group compounds to improve its dispersion properties in mineral base engine oils

Cited by 3 publications

References 11 publications

Recent Advances in Preparation and Testing Methods of Engine-Based Nanolubricants: A State-of-the-Art Review

Recent Advances in Preparation and Testing Methods of Engine-Based Nanolubricants: A State-of-the-Art Review

Potential of CuS and CuO nanoparticles for friction reduction in piston ring–liner contact

Correlation between preparation techniques and frictional properties of cellulose nanocrystals as additives in water-based lubricants

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