Synthesis and magnetic properties of CoFe2O4 nanoparticles by using PEG as surfactant additive

被引：99

作者：

Chen, Zhitao ^{[1
]}

Gao, Lian ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 2007年 / 141卷 / 1-2期

关键词：

nanomaterials; magnetic materials; cobalt ferrite; chemical synthesis;

D O I：

10.1016/j.mseb.2007.06.003

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

CoFe2O4 nanoparticles with an average diameter of 25 nm and hexagonal and quadrangular shape were synthesized by a facile hydrothermal process at 180 degrees C. This method was versatile for synthesis of other spinel ferrites. By adjusting the reaction condition we can modify the size and morphology of the product. The synthesized product has good hard magnetic property. It was found that the addition of polyethylene glycol can elevate the crystallinity of CoFe2O4 and change the product morphology and cause the saturation magnetization of product increased. The function mechanism of the polyethylene glycol in the reaction system was also discussed in this paper. These magnetic material is promising material for high-density magnetic storage and medical diagnostics. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：82 / 86

页数：5

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