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

Cited 309 time in Web of Science Cited 313 time in Scopus
Authors
Bang, Gyeong Sook; Nam, Kwan Woo; Kim, Jong Yun; Shin, Jongwoo; Choi, Jang Wook; Choi, Sung-Yool
Issue Date
2014-05
Citation
ACS Applied Materials and Interfaces, Vol.6 No.10, pp.7084-7089
Keywords
nanosheetsMoS2sodium-ion batteryliquid-phase exfoliationlayered materials
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.
ISSN
1944-8244
URI
http://hdl.handle.net/10371/164644
DOI
https://doi.org/10.1021/am4060222
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Chemical and Biological Engineering (화학생물공학부)Journal Papers (저널논문_화학생물공학부)
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