Fast and Efficient Preparation of Exfoliated 2H MoS2 Nanosheets by Sonication-Assisted Lithium Intercalation and Infrared Laser-Induced 1T to 2H Phase Reversion

Exfoliated 2H molybdenum disulfide (MoS2) has unique properties and potential applications in a wide range of fields, but corresponding studies have been hampered by the lack of effective routes to it in bulk quantities. This study presents a rapid and efficient route to obtain exfoliated 2H MoS2, w...

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Published inNano letters Vol. 15; no. 9; pp. 5956 - 5960
Main Authors Fan, Xiaobin, Xu, Pengtao, Zhou, Dekai, Sun, Yifan, Li, Yuguang C, Nguyen, Minh An T, Terrones, Mauricio, Mallouk, Thomas E
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 09.09.2015
Subjects
intercalation
MoS2
exfoliation
infrared laser
sonication
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Summary:Exfoliated 2H molybdenum disulfide (MoS2) has unique properties and potential applications in a wide range of fields, but corresponding studies have been hampered by the lack of effective routes to it in bulk quantities. This study presents a rapid and efficient route to obtain exfoliated 2H MoS2, which combines fast sonication-assisted lithium intercalation and infrared (IR) laser-induced phase reversion. We found that the complete lithium intercalation of MoS2 with butyllithium could be effected within 1.5 h with the aid of sonication. The 2H to 1T phase transition that occurs during the lithium intercalation could be also reversed by IR laser irradiation with a DVD optical drive.
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ISSN:1530-6984
1530-6992
1530-6992
DOI:10.1021/acs.nanolett.5b02091