作者
Yadong D Li, Xiaolin L Li, Rongrui R He, Jing Zhu, Zhaoxiang X Deng
发表日期
2002/2/20
期刊
Journal of the American Chemical Society
卷号
124
期号
7
页码范围
1411-1416
出版商
American Chemical Society
简介
A direct pyrolysis method from artificial lamellar mesostructures to nanotubes was developed for the synthesis of tungsten disulfide (WS2) nanotubes. In this process, a tungsten sulfide artificial lamellar mesostructure composite with intercalated cetyltrimethylammonium cations (WS-L) was prepared on the basis of the recently developed template self-assembly of anionic tungstates (WS42-) and cationic surfactant molecules (CTA+) in solution under appropriate conditions. After heating of this inorganic−surfactant lamellar composite material in an argon atmosphere to 850 °C, bulk quantities of uniform WS2 nanotubes with diameters of 5−37.5 nm and lengths ranging from 0.2 to 5 μm were produced, which revealed a general rolling mechanism of layered sheets for tubule formation. The observations of transmission electron microscopy are in good agreement with the proposed rolling mechanism.
引用总数
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学术搜索中的文章
YD Li, XL Li, RR He, J Zhu, ZX Deng - Journal of the American Chemical Society, 2002