Tribological performances of MoS₂/C₆₀ nanocomposite as lubricating additive in dioctyl sebacate

Abstract

Purpose

This paper aims to solve the problems molybdenum disulfide (MoS₂) nanosheets suffer from inadequate dispersion stability and form a weak lubricating film on the friction surface, which severely limits their application as lubricant additives.

Design/methodology/approach

MoS₂/C₆₀ nanocomposites were prepared by synthesizing molybdenum disulfide (MoS₂) nanosheets on the surface of hydrochloric acid-activated fullerenes (C₆₀) by in situ hydrothermal method. The composition, structure and morphology of MoS₂/C₆₀ nanocomposites were characterized. Through the high-frequency reciprocating tribology test, its potential as a lubricant additive was evaluated.

Findings

MoS₂/C₆₀ nanocomposites that were prepared showed good dispersion in dioctyl sebacate (DOS). When 0.5 Wt.% MoS₂/C₆₀ was added, the friction reduction performance and wear resistance improved by 54.5% and 62.7%, respectively.

Originality/value

MoS₂/C₆₀ composite nanoparticles were prepared by in-situ formation of MoS₂ nanosheets on the surface of C₆₀ activated by HCl through hydrothermal method and were used as potential lubricating oil additives.

Peer review

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-10-2023-0321/

Citation

Lu, Z., Qiu, F., Song, H. and Hu, X. (2024), "Tribological performances of MoS₂/C₆₀ nanocomposite as lubricating additive in dioctyl sebacate", Industrial Lubrication and Tribology, Vol. 76 No. 4, pp. 486-499. https://doi.org/10.1108/ILT-10-2023-0321