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  11. Effect Of Nano-graphene Lubricating Oil On Particulate Matter Of A Diesel Engine

Effect of nano-graphene lubricating oil on particulate matter of a diesel engine

Xin Kuang1, Xiping Yang2, Hao Fu3

  • 1School of Traffic Engineering, Jiangsu Shipping College, Nantong, 226010, China.

Scientific Reports
|May 11, 2024

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View abstract on PubMed

Summary
This summary is machine-generated.

Nano-graphene additives in diesel engine oil increase particulate matter (PM) but make it more difficult to oxidize. This study investigated the impact of nano-graphene lubricating oil on PM properties.

Area of Science:

  • Tribology
  • Materials Science
  • Environmental Science

Background:

  • Nano-graphene lubricating oil shows promise for reducing friction and wear in diesel engines.
  • Lubricating oil significantly influences particulate matter (PM) emissions.
  • Limited research exists on nano-graphene oil's impact on PM physicochemical properties.

Purpose of the Study:

  • To evaluate the effects of nano-graphene lubricating oil additives on diesel engine PM.
  • To analyze changes in PM particle size distribution and physicochemical properties.

Main Methods:

  • Comparison of PM from engines using pure oil versus nano-graphene oil.
  • Analysis of PM particle size, fractal dimension, and carbon structure.
  • Characterization of PM chemical composition and thermal oxidation behavior.
Keywords:
Lubricating oilNano-grapheneParticulate matterPhysicochemical properties

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Main Results:

  • Nano-graphene oil increased total nuclear and accumulated PM numbers.
  • PM exhibited increased fractal dimension, compactness, and graphitization.
  • PM showed decreased fringe separation and increased fringe length, tortuosity, and structural fluctuation.
  • Aromatic components and oxygen functional groups in PM increased.
  • PM oxidation temperatures increased, indicating reduced oxidizability.

Conclusions:

  • Nano-graphene lubricating oil alters PM characteristics, increasing its quantity and graphitization.
  • The modified PM is more resistant to oxidation due to higher graphitization and aromatic content.
  • Further research is needed to fully understand the environmental implications of these changes.