Issue 30, 2019, Issue in Progress

Hydrothermal-assisted shearing exfoliation for few-layered MoS2 nanosheets

Abstract

The exfoliation of bulk MoS2 into few layers has attracted considerable attention as 2D nanomaterials in the past decade. We developed a facile approach for producing MoS2 nanosheets by hydrothermal-assisted shearing exfoliation based on organic-free strategy. This original exfoliation was highly efficient for large-scale production and sustainable for the environment. The thickness of the as-exfoliated MoS2 nanosheets was about 4–6 layers, and the lateral size became smaller from hydrothermal processing to shearing. The hydrothermal processing with the participation of ammonium carbonate played an important role in hydrothermal-assisted shearing exfoliation. As a prospective application, the antifriction performance of the as-exfoliated MoS2 nanosheets in oil was evaluated using a ball-on-ball mode. Evidently, the average friction coefficient and wear scar diameter of 0.08 wt% MoS2-based oil dropped to about 20.66% and 47.27% relative to those of the base oil, which exhibited an excellent antifriction and antiwear ability.

Graphical abstract: Hydrothermal-assisted shearing exfoliation for few-layered MoS2 nanosheets

Article information

Article type
Paper
Submitted
19 Mar 2019
Accepted
17 May 2019
First published
31 May 2019
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2019,9, 17016-17024

Hydrothermal-assisted shearing exfoliation for few-layered MoS2 nanosheets

P. Wu, Z. Liu and Z. Cheng, RSC Adv., 2019, 9, 17016 DOI: 10.1039/C9RA02102G

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