Tribological Behaviour of Graphene Nanoplatelets as Additive in Pongamia Oil

Jason, Yeoh Jun Jie; How, Heoy Geok; Teoh, Yew Heng; Sher, Farooq; Chuah, Hun Guan; Teh, Jun Sheng

doi:10.3390/coatings11060732

Cited by 15 publications

(9 citation statements)

References 48 publications

(54 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Gulzar et al, [33] verified nanoparticles tribo-sintering on the worn surface to provide wear protection through EDX analysis. Jason et al, [34] reported the deposition of nanoparticles on the friction surface with the presence of related elements through EDX. Jamaluddin et al, [35] found similar findings, who reported the deep parallel grooves formed on the surface because of the high content of carbon elements in graphene.…”

Section: Sem and Edx Analysesmentioning

confidence: 99%

Investigation of Tribological Properties of Graphene Nanoplatelets in Synthetic Oil

How

Jason

Teoh

et al. 2022

ARFMTS

View full text Add to dashboard Cite

Lubricants are commonly utilized in industry to minimize friction and wear for tools and components, and additives play indispensable roles in lubricants to attain overall enhanced tribological properties. Because of environmental concerns, the introduction of nanoparticles is regarded as a promising lubricant additive capable of replacing conventional additives and improving lubricant tribological properties. This study investigated the tribological behaviour of 5W30 PAO+ester fully synthetic oil (SO) with and without the addition of graphene nanoplatelets. Besides, this study also focuses on the tribological effect of graphene's concentration (0.01, 0.02, 0.05, 0.1 and 0.2 wt%). The experiments were conducted using a four-ball tester according to ASTM D4172 and surface analysis was done on the worn surfaces using scanning electron microscopy and energy-dispersive x-ray spectroscopy. The results show that the presence of graphene significantly improves the tribological properties. SO enriched 0.05 wt% graphene exhibits the lowest coefficient of friction and wear scar diameter, and the friction and wear were reduced by 33.78% and 34.42%, respectively. The protective film formed on the worn surface is responsible for friction and wear reduction. In addition, the worn surface becomes smoother after being lubricated by nanolubricants, which can be observed through the SEM analysis. EDX analysis revealed the presence of element carbon on the worn surface, implying that nanoparticles had deposited on the worn surface.

show abstract

Section: Sem and Edx Analysesmentioning

confidence: 99%

Investigation of Tribological Properties of Graphene Nanoplatelets in Synthetic Oil

How

Jason

Teoh

et al. 2022

ARFMTS

View full text Add to dashboard Cite

show abstract

“…Graphene nanoparticles have proven tribological performance for friction and wear related engineering applications, a solid lubricant, and an additive to oils or solvents [29]. The friction and wear characteristics of graphene platelets as additive in mineral engine oil/Pongamia oil have proven tribological performance for reducing energy expenditure [30]. Tribology of water molecules over graphene substates for the measurement of retention force by centrifugal adhesion balance is practically invariant of resting time for liquid drop surface interactions [31].…”

Section: Mechanochemical and Thermal Propertiesmentioning

confidence: 99%

NEMS/MEMS carbon functionalization: A prospective expression

Tomar

2022

Preprint

View full text Add to dashboard Cite

Nanotechnology is an emerging scientific domain for innovative application in biomedical, electronics, bio functionalities, tribology, and energy generation. Nano cellulose, carbon black, black carbon, carbon dots, and graphene family members are functional structures due to unique physiochemical properties and electron transfer efficacy. The transformation of physiochemical or morphological properties of carbon nanoparticles may lead to biological activities for evolution of reactive oxygen species. Disruption of biological membrane due to supramolecular adhesion of hydroxyl, carboxyl, and amino functional groups is a biomechanical mechanism of cytotoxicity of carbon nanomaterials. The surface tension and Gibbs free energy of bio-membrane is affected by the loading of carbon nanomaterials.

show abstract

“…It was reported that the lowest friction and wear were seen with the introduction of 0.05 weight percent of GNPs to PO and MO, with respective friction reduction of 17.5% and 12.24% and wear reduction of 11.96% and 5.14%. It was revealed by the researchers that friction and wear were reduced because of the settling of GNPs on the friction surface and the creation of a shielding film, which stopped the interaction surfaces from rubbing against one another 185 …”

Section: The Significant Role Of Nanomaterials In Biofuel Productionmentioning

confidence: 99%

“…It was revealed by the researchers that friction and wear were reduced because of the settling of GNPs on the friction surface and the creation of a shielding film, which stopped the interaction surfaces from rubbing against one another. 185 Apart from this, to circumvent the shortcomings of heterogeneous catalysts used in biodiesel production, NPs are being progressively utilized to instill acidic or basic properties and increase the number of active catalytic sites that can improve the proficiency of trans-esterification reactions and overall biodiesel yield. 186 Todorovic and co-workers utilized calcium oxide (CaO) NPs for catalyzing trans-esterification reactions involved in biodiesel production with the help of sunflower oil and raw biodiesel as a co-solvent.…”

Section: Biodiesel Generation and Performancementioning

confidence: 99%

Nanotechnology as a vital science in accelerating biofuel production, a boon or bane

Sharma

Manro

Thakur

et al. 2022

Biofuels Bioprod Bioref

View full text Add to dashboard Cite

In a world where fossil fuels are running out, biofuels are one of the best green energy alternatives to fuels made from petroleum due to their environmentally beneficial qualities and low cost in comparison with non-renewable fossil fuels. Biofuels are produced from cheap and renewable sources and the energy stored in these biomasses can be assimilated to create sustainable electricity or heat, which can then be exploited to meet current and future societal needs in numerous situations. However, the production of biofuels on an industrial scale takes a lot of time because of the numerous constraints placed on currently available technology and the increased costs that go along with them. Moreover, the processes utilized to transform various feedstocks into the desired output also vary based on the materials and techniques employed. The supply of biofuel feedstocks is large, and with improved processing, we could significantly lower our reliance on fossil fuels. In this context, the use of nanoparticles (NPs) is a commendable solution to the present problems with biomass use, especially given their low cost. The unique qualities of nanomaterials, such as excellent catalytic properties, high surface area-to-volume ratio, remarkable selectivity, and reusability make them admirable tools for boosting biofuel generation. This review predominantly focuses on the contributions of nanotechnology and various immobilization methodologies in accelerating biofuel production from biomasses that might fill in the research gap, which was previously limited by the relatively lower efficiency of traditional techniques of biofuel generation.

show abstract

Tribological Behaviour of Graphene Nanoplatelets as Additive in Pongamia Oil

Cited by 15 publications

References 48 publications

Investigation of Tribological Properties of Graphene Nanoplatelets in Synthetic Oil

Investigation of Tribological Properties of Graphene Nanoplatelets in Synthetic Oil

NEMS/MEMS carbon functionalization: A prospective expression

Nanotechnology as a vital science in accelerating biofuel production, a boon or bane

Contact Info

Product

Resources

About