Heterogeneous growth of B-C-N nanotubes by laser ablation

被引：203
|
作者：
Zhang, Y
Gu, H
Suenaga, K
Iijima, S
机构：
[1] NEC Corp Ltd, Fundamental Res Labs, Tsukuba, Ibaraki 305, Japan
[2] JST Int Res Project Ceram Superplastic, Atsuta Ku, Nagoya, Aichi 456, Japan
[3] Univ Paris 11, Phys Solides Lab, URA 002, F-91405 Orsay, France
来源：
CHEMICAL PHYSICS LETTERS | 1997年 / 279卷 / 5-6期
关键词：
D O I：
10.1016/S0009-2614(97)01048-8
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：
Multi-wall nanotubes have been synthesized by metal catalyzed laser ablation of a BN and carbon composite target in a tube furnace heated to 1000 degrees C or 1200 degrees C and flowing with nitrogen gas. The products are characterized by scanning transmission electron microscopy and electron energy-loss spectroscopy. No single-wall nanotube has been found in the products. Thinner nanotubes with a few layers are usually composed of pure carbon. B-C-N layers exist at the outer surface of thicker nanotubes. The layer number and chemical composition vary along the tube axis, The growth mechanism of the heterogeneous nanotubes is discussed. (C) 1997 Elsevier Science B.V.
引用
收藏
页码：264 / 269
页数：6
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