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Synthesis of MoSe 2 /Reduced graphene oxide composites with improved tribological properties for oil‐based additives
Author(s) -
Li Hongping,
Chen Lin,
Zhang Yi,
Ji Xiaorui,
Chen Shuai,
Song Haojie,
Li Changsheng,
Tang Hua
Publication year - 2014
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.201300317
Subject(s) - materials science , graphene , tribology , diffractometer , oxide , scanning electron microscope , composite material , transmission electron microscopy , chemical engineering , nanotechnology , metallurgy , engineering
In this work, we developed a facile and effective hydrothermal method synthesis of MoSe 2 nanoflowers on reduced graphene oxide (RGO) sheets. The as‐prepared MoSe 2 /reduced graphene oxide (MoSe 2 /RGO) composites are characterized by X‐ray diffractometer (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The results indicated that MoSe 2 nanoflowers were successfully deposited on RGO nanosheets to form a well interconnected hybrid structure. The tribological properties of MoSe 2 /RGO composites as lubricating oil additive were investigated by a UMT‐2 ball‐on‐plate friction and wear tester. By the addition of MoSe 2 /RGO composites in paraffin oil, the antiwear ability was improved and the friction coefficient was decreased. The based oil with MoSe 2 /RGO composites showed better tribological properties than the oil with MoSe 2 and pure oil. The good friction and wear properties of MoSe 2 /RGO composites as additives were attributed to the formation of a thin physical tribofilm on the substrate.
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