Preparation of Few-layer MoS<sub>2</sub> Nanosheets Based on Natural Molybdenite and Its Supercapacitor Properties

CHEN Haoran; QI Huiqiang; CHEN Yiren; XIA Kaisheng; LI Zhen

doi:10.13779/j.cnki.issn1001-0076.2022.04.003

2022 Vol. 42, No. 4

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Article navigation > Conservation and Utilization of Mineral Resources > 2022 > 42(4): 22-29

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CHEN Haoran, QI Huiqiang, CHEN Yiren, XIA Kaisheng, LI Zhen. Preparation of Few-layer MoS2 Nanosheets Based on Natural Molybdenite and Its Supercapacitor Properties[J]. Conservation and Utilization of Mineral Resources, 2022, 42(4): 22-29. doi: 10.13779/j.cnki.issn1001-0076.2022.04.003

Citation:

CHEN Haoran, QI Huiqiang, CHEN Yiren, XIA Kaisheng, LI Zhen. Preparation of Few-layer MoS₂ Nanosheets Based on Natural Molybdenite and Its Supercapacitor Properties[J]. Conservation and Utilization of Mineral Resources, 2022, 42(4): 22-29. doi: 10.13779/j.cnki.issn1001-0076.2022.04.003

Preparation of Few-layer MoS₂ Nanosheets Based on Natural Molybdenite and Its Supercapacitor Properties

Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China

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Corresponding author: XIA Kaisheng, kaishengxia@cug.edu.cn

Received Date: 20 June 2022

Publish Date: 25 August 2022

Abstract

Abstract

A few-layer of MoS₂ nanosheets (F-MoS₂) was prepared from natural molybdenite by Na⁺ ion-assisted liquid phase peeling method. The results showed that the thickness of F-MoS₂ nanosheets obtained by peeling was about 1.1-1.5 nm, the number of layers corresponding to MoS₂ was 2-3 layers. It was confirmed by electrochemical performance tests that the specific capacitance of F-MoS₂ was 73.7 F/g at a current density of 0.25 A/g, which was much higher than that of unstripped molybdenite (9.2 F/g) and commercial MoS₂ (19.6 F/g), the significantly increased capacitance of F-MoS₂ was mainly attributed to its fully exposed active surface. This research confirms that F-MoS₂ obtained through Na⁺ ion-assisted liquid phase peeling method was a very promising class of energy storage materials.
- natural molybdenite /
- molybdenum disulfide /
- supercapacitors /
- liquid phase peeling

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References

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