Preparation and magnetic properties of iron oxide and carbide nanoparticles in carbon nanotube matrix

被引:37
作者
Cheng, J. P. [1 ]
Zhang, X. B. [1 ]
Yi, G. F. [1 ]
Ye, Y. [2 ]
Xia, M. S. [2 ]
机构
[1] Zhejiang Univ, Dept Mat Sci & Engn, Hangzhou 310027, Peoples R China
[2] Zhejiang Univ, Dept Earth Sci, Hangzhou 310027, Peoples R China
基金
中国博士后科学基金; 中国国家自然科学基金;
关键词
fullerenes; nanostructured materials; gas-solid reactions; magnetization; transmission electron microscopy; TEM;
D O I
10.1016/j.jallcom.2007.01.014
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
The present work describes a procedure for the preparation of iron oxide and carbide nanoparticles in carbon nanotube (CNT) matrix using the wet impregnation method and subsequent heat treatment in different atmosphere. In this way, two specific composites were produced with magnetite and cementite phase particles dispersed in CNTs, respectively, and cementite particles were encapsulated in graphene shells. As-prepared nanoparticles were all single crystalline and characterized by transmission electron microscopy (TEM), high-resolution TEM and X-ray diffraction. The magnetic properties of the resultant products were studied using vibrating sample magnetometer at room temperature. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:5 / 9
页数:5
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