Magnetic and conducting particles:: preparation of polypyrrole layer on Fe3O4 nanospheres

被引：149

作者：

Chen, W

Li, XW

Xue, G ^{[1
]}

Wang, ZQ

Zou, WQ

机构：

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

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

来源：

APPLIED SURFACE SCIENCE | 2003年 / 218卷 / 1-4期

基金：

中国国家自然科学基金;

关键词：

core-shell structure; polypyrrole; nanocomposite;

D O I：

10.1016/S0169-4332(03)00590-7

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：

We reported here the preparation of Fe3O4-polypyrrole (PPy) nanocomposites with both magnetic and conducting properties. The magnetic properties of the resulting composites were investigated by vibrating sample magnetometer (VSM). The Fe3O4-PPy nanocomposites had coercive force from 98.4 to 116.3 Oe and saturation magnetization front 0.268 to 9.23 emu/g with the increasing Fe3O4 content. The electrical conductivities ranged from 10(-5) to 10(-2) S/cm, depending on the Fe3O4 content. The average size of Fe3O4-PPy nanocomposites with core-shell structure was about 50 run. Structural characterizations by Fourier transform infrared (FTIR) and thermogravimetric analysis (TGA) proved the interaction between Fe3O4 and PPy chains. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：215 / 221

页数：7

共 24 条

[1] NEW NANOCOMPOSITES BASED ON TAILOR DRESSED MAGNETIC PARTICLES IN A POLYPYRROLE MATRIX [J].