Chemical Unzipping of WS2 Nanotubes
Chemical Unzipping of WS2 Nanotubes
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DOI：
10.1021/nn4029635
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发表时间：
2013-08-01
期刊：
影响因子：
17.1
通讯作者：
Bando, Yoshio
中科院分区：
文献类型：
--
作者：
Nethravathi, C.;Jeffery, A. Anto;Bando, Yoshio
通过化学解压缩WS2纳米管，合成了WS2纳米带。通过正丁基锂在己烷中的溶剂热反应，将锂原子嵌入到WS2纳米管中。然后，锂化的WS2纳米管与各种溶剂——水、乙醇和长链硫醇——反应。当这些管子被水和乙醇处理时，它们会被分解成碎片，当它们被长链硫醇、1-辛烷硫醇和1-十二烷硫醇处理时，它们会沿着轴线纵向切割，形成纳米带。长链硫醇的缓慢扩散降低了反应的侵略性，导致控制管的打开。
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.