Preparation and Tribological Properties of WS2 Hexagonal Nanoplates and Nanoflowers
1
School of Mechanical Engineering, Jiangsu University of Technology, Changzhou 213001, China
2
School of Materials Science and Engineering, Jiangsu University of Technology, Changzhou 213001, China
*
Author to whom correspondence should be addressed.
Nanomaterials 2019, 9(6), 840; https://doi.org/10.3390/nano9060840
Received: 27 April 2019
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Revised: 22 May 2019
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Accepted: 27 May 2019
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Published: 1 June 2019
(This article belongs to the Special Issue Preparation and Properties of 2D Materials)
This paper presents the facile synthesis of two different morphologies of WS2 nanomaterials—WS2 hexagonal nanoplates and nanoflowers—by a sulfurization reaction. The phases and morphology of the samples were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The tribological performance of the two kinds of WS2 nanomaterials as additives in paraffin oil were measured using a UMT (Universal Mechanical Tester)-2 tribotester. The results demonstrated that the friction and wear performance of paraffin oil can be greatly improved with the addition of WS2 nanomaterials, and that the morphology and content of WS2 nanomaterials have a significant effect on the tribological properties of paraffin oil. The tribological performance of lubricating oil was best when the concentration of the WS2 nanomaterial additive was 0.5 wt %. Moreover, the paraffin oil with added WS2 nanoflowers exhibited better tribological properties than paraffin oil with added WS2 hexagonal nanoplates. The superior tribological properties of WS2 nanoflowers can be attributed to their special morphology, which contributes to the formation of a uniform tribo-film during the sliding process.
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Keywords:
WS2; lubricant additives; tribological properties
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MDPI and ACS Style
Zhang, X.; Wang, J.; Xu, H.; Tan, H.; Ye, X. Preparation and Tribological Properties of WS2 Hexagonal Nanoplates and Nanoflowers. Nanomaterials 2019, 9, 840. https://doi.org/10.3390/nano9060840
AMA Style
Zhang X, Wang J, Xu H, Tan H, Ye X. Preparation and Tribological Properties of WS2 Hexagonal Nanoplates and Nanoflowers. Nanomaterials. 2019; 9(6):840. https://doi.org/10.3390/nano9060840
Chicago/Turabian StyleZhang, Xianghua, Jiangtao Wang, Hongxiang Xu, Heng Tan, and Xia Ye. 2019. "Preparation and Tribological Properties of WS2 Hexagonal Nanoplates and Nanoflowers" Nanomaterials 9, no. 6: 840. https://doi.org/10.3390/nano9060840
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