Issue 3, 2017

Mild thermal reduction of graphene oxide as a lubrication additive for friction and wear reduction

Abstract

Recently, studies on graphene-based lubrication additives have been widely researched, but few refer to their preparation by thermal reduction which shows potential in not only significantly lowering the mass-production cost, but also the simple, nonchemical process. In this study, mild thermal reduction of graphene oxide (MRGO) has been achieved by high temperature (700 °C) treatment and the product used as a lubrication additive. It shows a relatively ordered lamellar structure and a certain level of oxygen by transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS) analysis, and exhibits excellent tribological properties as a lubrication additive. The friction coefficient can be reduced by as much as 30% and the rubbing surfaces display few scratches at a lower additive concentration (0.5 wt%) compared with that of base oil (Poly Alpha Olefins Type 6: PAO 6) without MRGO additive under the same friction conditions. Based on the advantages of green, low-cost and simple synthesis operation, the MRGO offers significant potential application as a lubrication additive.

Graphical abstract: Mild thermal reduction of graphene oxide as a lubrication additive for friction and wear reduction

Article information

Article type
Paper
Submitted
08 Nov 2016
Accepted
12 Dec 2016
First published
09 Jan 2017
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2017,7, 1766-1770

Mild thermal reduction of graphene oxide as a lubrication additive for friction and wear reduction

J. Zhao, Y. Li, Y. Wang, J. Mao, Y. He and J. Luo, RSC Adv., 2017, 7, 1766 DOI: 10.1039/C6RA26488C

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