The Application of Nano-MoS(2) Quantum Dots as Liquid Lubricant Additive for Tribological Behavior Improvement

Molybdenum disulfide quantum dots (MoS(2) QDs) are a promising lubricant additive for enhanced engine efficiency. In this study, MoS(2) QDs were used as lubricating oil additives for ball-on-disc contact and had adequate dispersity in paroline oil, due to their super small particle size (~3 nm). Tri...

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Detalles Bibliográficos
Autores principales: Guo, Junde, Peng, Runling, Du, Hang, Shen, Yunbo, Li, Yue, Li, Jianhui, Dong, Guangneng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7074879/
https://www.ncbi.nlm.nih.gov/pubmed/31979331
http://dx.doi.org/10.3390/nano10020200
Descripción
Sumario:Molybdenum disulfide quantum dots (MoS(2) QDs) are a promising lubricant additive for enhanced engine efficiency. In this study, MoS(2) QDs were used as lubricating oil additives for ball-on-disc contact and had adequate dispersity in paroline oil, due to their super small particle size (~3 nm). Tribological results indicate that the friction coefficient of paroline oil with 0.3 wt.% MoS(2) QDs reached 0.061, much lower than that of pure paroline oil (0.169), which is due to the formation of a stable tribo-film formed by the MoS(2), MoO(3), FeS, and FeSO(4) composite within the wear track. Synergistic lubrication effects of the tribo-film and ball-bearing effect cooperatively resulted in the lowest friction and wear.

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