Preparation and characterization of polyvinyl alcohol-cobalt ferrite nanocomposites

被引：67

作者：

Garcia-Cerda, L. A. ^{[1
]}

Escareno-Castro, M. U. ^{[1
]}

Salazar-Zertuche, M. ^{[1
]}

机构：

[1] Ctr Invest Quim Aplicada, Saltillo 25253, Coahuila, Mexico

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2007年 / 353卷 / 8-10期

关键词：

ceramics; crystal growth; X-ray diffraction; magnetic properties; nanocomposites; nanoparticles;

D O I：

10.1016/j.jnoncrysol.2006.12.046

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this work polyvinyl alcohol (PVA)-cobalt ferrite (CoFe2O4) nanocomposites were successfully prepared by in situ precipitation and oxidation of Fe3+ and Co2+ within polymer matrix. Solid films were obtained by static casting method. X-ray diffraction (XRD), infrared spectroscopy (IR) and vibrating sample magnetometry (VSM) were used to characterize the nanocomposites. The diffraction patterns showed the formation of a single magnetic phase identified as CoFe2O4. VSM measurements revealed that the magnetic nanocomposite is ferromagnetic. The use of two different temperatures to obtain the nanocomposites allowed the preparation of samples with magnetization values between 0.57 and 2.92 emu/g. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：808 / 810

页数：3

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