期刊
TRIBOLOGY INTERNATIONAL
卷 116, 期 -, 页码 303-309出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2017.06.023
关键词
Thermal reduction; Sulfuric acid; Graphene additives; Friction and wear
资金
- National Natural Science Foundation of China [51527901, 51335005]
- National Key Basic Research Program of China (973 Program) [2014CB046404]
Graphene as an efficient lubrication additive attracts more and more attentions. The structure and the properties of graphene are influenced by its synthesis process. Although thermal reduction of graphene is an excellent method, such graphene always has some defects including obvious fold and wrinkling. In this study, a new synthesis method of thermally reduced graphite oxide in sulfuric acid (SA-tRGO) is proposed for preparing a graphene additive, and it shows a lamellar structure without obvious fold and wrinkling. The SA-tRGO shows outstanding tribological properties, and even at a high load (1.86 GPa) the friction coefficient and the wear rate still can be decreased by 30% and 75%, respectively. The synthesis method is simple and has great industrialization potential.
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