Transformation of BxCyNz nanotubes to pure BN nanotubes

被引：173

作者：

Han, WQ

Mickelson, W

Cumings, J

Zettl, A ^{[1
]}

机构：

[1] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[2] Lawrence Berkeley Natl Lab, Div Sci Mat, Berkeley, CA 94720 USA

来源：

APPLIED PHYSICS LETTERS | 2002年 / 81卷 / 06期

关键词：

D O I：

10.1063/1.1498494

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We demonstrate that multiwalled BxCyNz nanotubes can be efficiently converted to BN multiwalled nanotubes via an oxidation treatment. The microstructure and composition of the precursors and final products have been characterized by high-resolution transmission electron microscopy, electron energy-loss spectroscopy, and energy dispersive x-ray spectroscopy. The conversion process is monitored by thermogravimetric analysis. Carbon layers of BxCyNz nanotubes start to oxidize at 550 degreesC, thereby transforming BxCyNz nanotubes into pure BN nanotubes. The remarkable thermal stability of pure BN nanotubes in an oxidizing environment is also established. (C) 2002 American Institute of Physics.

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页码：1110 / 1112

页数：3

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