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Synthesis of Composite Nanosheets of Graphene and Boron Nitride and Their Lubrication Application in Oil
Author(s) -
Liu Yuchen,
Mateti Srikanth,
Li Chao,
Liu Xuequan,
Glushenkov Alexey M.,
Liu Dan,
Li Lu Hua,
Fabijanic Daniel,
Chen Ying
Publication year - 2018
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201700488
Subject(s) - materials science , graphene , composite number , boron nitride , ball mill , graphite , lubricant , exfoliation joint , lubrication , composite material , graphene oxide paper , boron , hexagonal boron nitride , chemical engineering , nanotechnology , engineering , chemistry , organic chemistry
Composite nanosheets of graphene and boron nitride have been produced in large quantities for the first time using high‐energy ball milling in ammonia gas as an exfoliation agent. The anti‐wear properties of the composite nanosheets as a lubricant additive are investigated via a four‐ball method. The results show that the composite nanosheets are exfoliated from the commercial graphite and h‐BN powders and combined into graphene/BN composite nanosheets during the ball milling process. The composite nanosheets formed have diameters larger than 200 nm and consist of heterostructures of approximately 10 monolayers of graphene and BN. The composite nanosheets exhibit better wear resistance and friction reduction properties than the homogeneous nanosheets because of the stronger interaction between graphene and BN nanosheets, which can effectively improve the anti‐wear properties of mineral base oil as a lubricant additive.