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
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