Hollow nickel microspheres covered with oriented carbon nanotubes and its magnetic property

被引：29

作者：

Han , M

Zhang, WL

Gao, CL

Liang, YY

Xu, Z ^{[1
]}

Zhu, JM

He, JH

机构：

[1] Nanjing Univ, State Key Lab Coordinat Chem, Nanjing 210093, Peoples R China

[2] Nanjing Univ, State Key Lab Solid State Microstruct, Nanjing 210093, Peoples R China

来源：

CARBON | 2006年 / 44卷 / 02期

基金：

中国国家自然科学基金;

关键词：

carbon nanotubes; catalyst; magnetic properties;

D O I：

10.1016/j.carbon.2005.07.039

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：

A composite structure consisting of hollow nickel microspheres coated with oriented carbon nanotubes (CNTs) was synthesized via chemical vapor deposition at 800 degrees C. The hollow microspheres were composed of discrete Ni nanoparticles which acted as the catalyst. FESEM images showed that the CNTs grew on the surface of the Ni spheres. HRTEM, Raman and XRD analyses showed that the CNTs were highly graphitized. Magnetic measurements demonstrated that these composite structures exhibited enhanced ferromagnetic behaviour compared with hollow Ni spheres and bulk Ni. (C) 2005 Elsevier Ltd. All rights reserved.

引用

页码：211 / 215

页数：5

共 19 条

[1] A STRUCTURE MODEL AND GROWTH-MECHANISM FOR MULTISHELL CARBON NANOTUBES [J].