Atomic structures and formation mechanism of boron nitride nanotubes and nanohorns synthesized by arc-melting LaB6 powders

被引：14
作者：
Nishiwaki, A [1 ]
Oku, T [1 ]
机构：
[1] Osaka Univ, Inst Sci & Ind Res, Osaka 5670047, Japan
来源：
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2006年 / 26卷 / 4-5期
关键词：
powders-solid state; nanotubes; electron microscopy; nanocomposites; nitrides;
D O I：
10.1016/j.jeurceramsoc.2005.06.030
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Boron nitride (BN) nanotubes and nanohorns with various tip structures were synthesized by arc-melting LaB6 powders. Atomic structure models and formation mechanism for BN nanotubes and nanohorns were proposed from high-resolution electron microscopy (HREM), energy dispersive X-ray spectroscopy (EDX), molecular mechanics calculations (MM2) and thermodynamic calculation. The present work indicates that lanthanum would be a key catalytic material to produce the BN nanostructures. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码：435 / 441
页数：7
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