Heterostructured rGO/MoS2 nanocomposites toward enhancing lubrication function of industrial gear oils

被引：80

作者：

Fan, Xiaoqiang ^{[1
]}

Li, Xiaopeng ^{[1
]}

Zhao, Zhuang ^{[1
]}

Yue, Zhaofan ^{[1
]}

Feng, Peng ^{[1
]}

Ma, Xiaoliang ^{[1
]}

Li, Hao ^{[1
]}

Ye, Xiangyuan ^{[3
]}

Zhu, Minhao ^{[1
,2
]}

机构：

[1] Southwest Jiaotong Univ, Sch Mat Sci & Engn, Key Lab Adv Technol Mat, Minist Educ, Chengdu 610031, Peoples R China

[2] Southwest Jiaotong Univ, Sch Mech Engn, Tribol Res Inst, Chengdu 610031, Peoples R China

[3] Baoji Univ Arts & Sci, Coll Chem & Chem Engn, Shaanxi Key Lab Phytochem, Baoji 721013, Peoples R China

来源：

CARBON | 2022年 / 191卷

基金：

中国国家自然科学基金;

关键词：

Graphene; MoS2; Incommensurate stacking; Lubrication; TRIBOLOGICAL PERFORMANCE; GRAPHENE OXIDE; NANOSHEETS; FRICTION; EVOLUTION; BEHAVIOR; DIAMOND;

D O I：

10.1016/j.carbon.2022.01.037

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Reduced graphene oxide (rGO)/molybdenum disulfide (MoS2) heterostructure nanosheets (rGO-MoS2-1) were synthesized via vertically growing of MoS2 on rGO skeleton using a facile one-pot hydrothermal method. Toward high-performance lubrication additive, the rGO-MoS2-1 in industrial gear oil shows extraordinary dispersity and stability because its steric hindrance effect restrains the aggregation and settling tendency. More importantly, its introduction can significantly reduce the friction (similar to 16.7%) and wear (up to 80%) under the sliding contact. The characterization and analysis on the worn surfaces reveal that good dispersion stability, the formation of rGO-MoS2-based lubrication protective film, and the lower shear strength induced by the inherent lattice mismatch between rGO and MoS2 are the key factors in the friction reduction and protection the tribo-interfaces against wear. (C) 2022 Elsevier Ltd. All rights reserved.

引用

页码：84 / 97

页数：14

共 49 条

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