The preparations of fluorographene nanosheets and research in tribological properties in high vacuum

Lili Zhang and Zhengrui Zhang and Xi’an Gao and Siti Jahara Matlan and Nazaruddin Abd Taha (2023) The preparations of fluorographene nanosheets and research in tribological properties in high vacuum. Materials, 16. pp. 1-14.

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Abstract

In this study, fluorographene nanosheets (FG nanosheets) were prepared via the solventultrasonic exfoliation method. The fluorographene sheets were observed using field-emission scanning electron microscopy (FE-SEM). The microstructure of the as-prepared FG nanosheets was characterized by X-ray diffraction (XRD) and a thermal analyzer (TG). The tribological properties of FG nanosheets as an additive in ionic liquids in high vacuum were compared to that of ionic liquid (IL) with graphene (IL-G). The wear surfaces and transfer films were analyzed via an optical microscope, Raman spectroscopy, scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy (XPS). The results show that FG nanosheets can be obtained from the simple solventultrasonic exfoliation method. The prepared G nanosheets are a sheet, and the longer the ultrasonic time is, the thinner the sheet is. Ionic liquids with FG nanosheets had low friction and a low wear rate under high vacuum conditions. The improved frictional properties were attributed to the transfer film of FG nanosheets and more formation film of Fe-F.

Item Type:	Article
Keyword:	FG nanosheets, Solvent-ultrasonic exfoliation, Tribological properties, Preparation, Characterization
Subjects:	T Technology > T Technology (General) > T1-995 Technology (General) T Technology > TA Engineering (General). Civil engineering (General) > TA1-2040 Engineering (General). Civil engineering (General)
Department:	FACULTY > Faculty of Engineering
Depositing User:	SITI AZIZAH BINTI IDRIS -
Date Deposited:	13 Jan 2025 16:01
Last Modified:	13 Jan 2025 16:01
URI:	https://eprints.ums.edu.my/id/eprint/42561

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