Chemical Unzipping of WS2 Nanotubes

WS2 nanoribbons have been synthesized by chemical unzipping of WS2 nanotubes. Lithium atoms are intercalated in WS2 nanotubes by a solvothermal reaction with n-butyllithium in hexane. The lithiated WS2 nanotubes are then reacted with various solventswater, ethanol, and long chain thiols. While the...

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Bibliographic Details
Published inACS nano Vol. 7; no. 8; pp. 7311 - 7317
Main Authors Nethravathi, C, Jeffery, A. Anto, Rajamathi, Michael, Kawamoto, Naoyuki, Tenne, Reshef, Golberg, Dmitri, Bando, Yoshio
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 27.08.2013
Subjects
unzipping
WS2 nanoribbons
WS2 nanotubes
octanethiol
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Summary:WS2 nanoribbons have been synthesized by chemical unzipping of WS2 nanotubes. Lithium atoms are intercalated in WS2 nanotubes by a solvothermal reaction with n-butyllithium in hexane. The lithiated WS2 nanotubes are then reacted with various solventswater, ethanol, and long chain thiols. While the tubes break into pieces when treated with water and ethanol, they unzip through longitudinal cutting along the axes to yield nanoribbons when treated with long chain thiols, 1-octanethiol and 1-dodecanethiol. The slow diffusion of the long chain thiols reduces the aggression of the reaction, leading to controlled opening of the tubes.
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ISSN:1936-0851
1936-086X
DOI:10.1021/nn4029635