Effective liquid-phase exfoliation and sodium ion battery application of MoS2 nanosheets

Gyeong Sook Bang; Kwan Woo Nam; Jong Yun Kim; Jongwoo Shin; Jang Wook Choi; Sung Yool Choi

doi:10.1021/am4060222

Effective liquid-phase exfoliation and sodium ion battery application of MoS₂ nanosheets

Gyeong Sook Bang, Kwan Woo Nam, Jong Yun Kim, Jongwoo Shin, Jang Wook Choi, Sung Yool Choi

Department of Chemical Engineering & Materials Science

Research output: Contribution to journal › Article › peer-review

449 Scopus citations

Abstract

Two-dimensional (2D) molybdenum disulfide (MoS₂) has been taken much attention for various applications, such as catalyst, energy storage, and electronics. However, the lack of effective exfoliation methods for obtaining 2D materials in a large quantity has been one of the technical barriers for the real applications. We report a facile liquid-phase exfoliation method to improve the exfoliation efficiency for single-layer MoS₂ sheets in 1-methyl-2-pyrrolidinone (NMP) with a sodium hydroxide (NaOH) assistant. The concentration of the exfoliated MoS₂ nanosheets was greatly improved compared to that achieved with conventional liquid-phase exfoliation methods using NMP solvent. We demonstrate stable operation of sodium-ion battery by using the exfoliated MoS₂ and MoS₂-rGO composite as anode materials.

Original language	English
Pages (from-to)	7084-7089
Number of pages	6
Journal	ACS Applied Materials and Interfaces
Volume	6
Issue number	10
DOIs	https://doi.org/10.1021/am4060222
State	Published - 28 May 2014

Keywords

layered materials
liquid-phase exfoliation
nanosheets
sodium-ion battery

Access to Document

10.1021/am4060222

Cite this

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title = "Effective liquid-phase exfoliation and sodium ion battery application of MoS2 nanosheets",

abstract = "Two-dimensional (2D) molybdenum disulfide (MoS2) has been taken much attention for various applications, such as catalyst, energy storage, and electronics. However, the lack of effective exfoliation methods for obtaining 2D materials in a large quantity has been one of the technical barriers for the real applications. We report a facile liquid-phase exfoliation method to improve the exfoliation efficiency for single-layer MoS2 sheets in 1-methyl-2-pyrrolidinone (NMP) with a sodium hydroxide (NaOH) assistant. The concentration of the exfoliated MoS2 nanosheets was greatly improved compared to that achieved with conventional liquid-phase exfoliation methods using NMP solvent. We demonstrate stable operation of sodium-ion battery by using the exfoliated MoS2 and MoS2-rGO composite as anode materials.",

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AU - Bang, Gyeong Sook

AU - Nam, Kwan Woo

AU - Kim, Jong Yun

AU - Shin, Jongwoo

AU - Choi, Jang Wook

AU - Choi, Sung Yool

PY - 2014/5/28

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AB - Two-dimensional (2D) molybdenum disulfide (MoS2) has been taken much attention for various applications, such as catalyst, energy storage, and electronics. However, the lack of effective exfoliation methods for obtaining 2D materials in a large quantity has been one of the technical barriers for the real applications. We report a facile liquid-phase exfoliation method to improve the exfoliation efficiency for single-layer MoS2 sheets in 1-methyl-2-pyrrolidinone (NMP) with a sodium hydroxide (NaOH) assistant. The concentration of the exfoliated MoS2 nanosheets was greatly improved compared to that achieved with conventional liquid-phase exfoliation methods using NMP solvent. We demonstrate stable operation of sodium-ion battery by using the exfoliated MoS2 and MoS2-rGO composite as anode materials.

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