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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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
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author Guo, Junde
Peng, Runling
Du, Hang
Shen, Yunbo
Li, Yue
Li, Jianhui
Dong, Guangneng
author_facet Guo, Junde
Peng, Runling
Du, Hang
Shen, Yunbo
Li, Yue
Li, Jianhui
Dong, Guangneng
author_sort Guo, Junde
collection PubMed
description 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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spelling pubmed-70748792020-03-20 The Application of Nano-MoS(2) Quantum Dots as Liquid Lubricant Additive for Tribological Behavior Improvement Guo, Junde Peng, Runling Du, Hang Shen, Yunbo Li, Yue Li, Jianhui Dong, Guangneng Nanomaterials (Basel) Article 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. MDPI 2020-01-23 /pmc/articles/PMC7074879/ /pubmed/31979331 http://dx.doi.org/10.3390/nano10020200 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Guo, Junde
Peng, Runling
Du, Hang
Shen, Yunbo
Li, Yue
Li, Jianhui
Dong, Guangneng
The Application of Nano-MoS(2) Quantum Dots as Liquid Lubricant Additive for Tribological Behavior Improvement
title The Application of Nano-MoS(2) Quantum Dots as Liquid Lubricant Additive for Tribological Behavior Improvement
title_full The Application of Nano-MoS(2) Quantum Dots as Liquid Lubricant Additive for Tribological Behavior Improvement
title_fullStr The Application of Nano-MoS(2) Quantum Dots as Liquid Lubricant Additive for Tribological Behavior Improvement
title_full_unstemmed The Application of Nano-MoS(2) Quantum Dots as Liquid Lubricant Additive for Tribological Behavior Improvement
title_short The Application of Nano-MoS(2) Quantum Dots as Liquid Lubricant Additive for Tribological Behavior Improvement
title_sort application of nano-mos(2) quantum dots as liquid lubricant additive for tribological behavior improvement
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7074879/
https://www.ncbi.nlm.nih.gov/pubmed/31979331
http://dx.doi.org/10.3390/nano10020200
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