铋
材料科学
产量(工程)
透射电子显微镜
纳米
扫描电子显微镜
同轴
纳米技术
纳米颗粒
纳米管
碳纳米管
复合材料
冶金
工程类
电气工程
作者
Regine Boldt,Martin Kaiser,Daniel Köhler,Frank Krumeich,Michael Ruck
出处
期刊:Nano Letters
[American Chemical Society]
日期:2009-12-17
卷期号:10 (1): 208-210
被引量:57
摘要
A new convenient room-temperature template-free route for high-yield synthesis of double-walled bismuth nanotubes through the treatment of solid bismuth monoiodide with n-butyllithium is presented. Scanning electron microscopy and transmission electron microscopy observations of the product show uniform one-dimensional nanoparticles with high aspect ratios and lengths up to several hundred nanometers. Investigations of the cross sections of the bismuth nanotubes reveal an inner diameter of about 4.5 nm and an outer diameter of 6 nm. The tube walls consist of two coaxial cylinders, and the estimated thickness of the double-wall of about 0.75 nm matches quite properly two layers in the rhombohedral bismuth bulk structure.
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