MoS2-functionalized graphene composites-potential replacement for lubricant friction modifier and anti-wear additives
Document Type
Article
Publication Date
9-1-2021
Abstract
AGO-C(n)/MoS2 composites are synthesized by a facile and effective hydrothermal method. Different mass ratios of AGO-C(n) to MoS2 are prepared for producing AGO-C(n)/MoS2 composites and their tribological properties at different weight percentages in Group III petroleum-based oil are investigated. The as-prepared composites are characterized using Fourier transform infrared (FTIR), field emission scanning electron microscope/energy dispersive X-ray (FESEM/EDX), Raman, X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The performance of the AGO-C(n)/MoS2 composites as lubricant additives is investigated on four-ball testers. The results indicate that AGO-C(n)/MoS2 could improve the friction-reduction and antiwear properties of the petroleum-based oil. In particular, the AGO-C14/MoS2 composite with a 1:1 mass ratio shows the highest reduction of friction coefficient and wear scar diameter by 53% and 63%, respectively. The excellent tribological behavior of the composites is attributed to the synergetic effect and unique layered structure of AGO-C(n) and MoS2.
Keywords
Composites, Friction and wear, Functionalized graphene, Lubricant additive, MoS2
Divisions
nanotechnology
Funders
University of Malaya Grand Challenge Grant (GC001D-14AET),University of Malaya Grand Challenge Grant (GC001A-14AET)
Publication Title
Advanced Engineering Materials
Volume
23
Issue
9
Publisher
Wiley-V C H Verlag GMBH
Publisher Location
POSTFACH 101161, 69451 WEINHEIM, GERMANY