Composite nanostructures based on template-crown boron nitride nanotubules

被引：118

作者：

Shelimov, KB ^{[1
]}

Moskovits, M ^{[1
]}

机构：

[1] Univ Toronto, Dept Chem, Toronto, ON M5S 3H6, Canada

来源：

CHEMISTRY OF MATERIALS | 2000年 / 12卷 / 01期

关键词：

D O I：

10.1021/cm9905996

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The fabrication of boron nitride nanotubules and BN-based composite nanostructures within the pores of anodic aluminum oxide is described. Boron nitride nanotubules are produced by pyrolyzing 2,4,6-trichloroborazine over alumina templates at 750 degrees C. The nanotubules are polycrystalline, with crystallites exhibiting an orientational ordering such that the BN (001) planes are tilted 25 degrees with respect to the tube axis. Nanotubules at least 20 mu m long are observed, longer than what is expected for a growth mechanism that assumes a uniform substrate coating. This suggests that tubes grow in the axial direction faster than in the radial direction. As an example of a CVD-fabricated composite nanostructure, we synthesized coaxial C/BN/C nanotubules by the sequential pyrolysis of acetylene and trichloroborazine over alumina templates. BN-insulated copper nanowires were also fabricated by electrochemical deposition of copper into BN-coated templates.

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页码：250 / 254

页数：5

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