Decoration of carbon nanotubes with iron oxide

被引：103

作者：

Cao, HQ ^{[1
]}

Zhu, MF ^{[1
]}

Li, YG ^{[1
]}

机构：

[1] Donghua Univ, Coll Mat Sci & Engineer, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 200051, Peoples R China

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2006年 / 179卷 / 04期

基金：

中国国家自然科学基金;

关键词：

multiwalls carbon nanotubes; composite; decorating; magnetic properties; iron oxide;

D O I：

10.1016/j.jssc.2005.12.040

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A magnetic composite of multiwalls carbon nanotubes (MWNTs) decorated with iron oxide nanoparticles was synthesized successfully by a simple and effective chemistry precipitation method. The composite was characterized by X-ray diffraction analysis (XRD), Mossbauer spectrum (MS), transmission electron microscopy (TEM), and Fourier transform spectroscopy (FTIR) techniques. The patterns of XRD and MS indicated that MWNTs. gamma-Fe2O3, and Fe3O4 coexisted in the composite. The TEM observation indicated that the nanoparticles of iron oxide were attached oil the surface of the MWNTs, and the sizes of the particles ranged from 25 to 80 nm. FTIR spectra showed that SO4- functional groups existed on the surface of MWNTs after modification by sodium dodecylbenzene sulfonic acid (SDBS), which could immobilize Fe3+ ions onto the MWNTs. The hysteresis loops of the MWNTs and decorated MWNTs were measured by vibrating sample magnetometer (VSM), and the results showed that the composite was ferromagnetism with the saturated magnetization of 20.07emu/g, and the coercive of 163.44 Oe. (c) 2006 Elsevier Inc. All rights reserved.

引用

页码：1208 / 1213

页数：6

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