Synthesis and characterization of cobalt nanoparticles encapsulated in boron nitride nanocages

被引：27

作者：

Kitahara, H ^{[1
]}

Oku, T ^{[1
]}

Hirano, T ^{[1
]}

Suganuma, K ^{[1
]}

机构：

[1] Osaka Univ, Inst Sci & Ind Res, Ibaraki, Osaka 5670047, Japan

来源：

关键词：

boron nitride; metal; microstructure; magnetic property;

D O I：

10.1016/S0925-9635(00)00374-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A large quantity of boron nitride (BN) nanocapsules with cobalt nanoparticles were fabricated by nitridation of boron and cobalt nanoparticles with a H-2/NH3 gas mixture. High-resolution electron microscopy showed that cobalt nanoparticles were encapsulated by boron nitride layers with thickness of similar to 5 nm. Magnetization and photoluminescence measurements of the BN nanocapsules showed ferromagnetism and luminescence at 3.8 eV, which would be due to separation of Co nanoparticles by the BN layers. The present work indicates that the nitridation of boron particles with catalytic metal is a useful fabrication method for mass production of BN nanocapsules at low temperatures compared to the ordinary are discharge method. (C) 2001 Elsevier Science B,V. All rights reserved.

引用

页码：1210 / 1213

页数：4

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