Synthesis and characterization of surfactant-coated superparamagnetic monodispersed iron oxide nanoparticles

被引：664

作者：

Kim, DK ^{[1
]}

Zhang, Y

Voit, W

Rao, KV

Muhammed, M

机构：

[1] Royal Inst Technol, Mat Chem Div, SE-10044 Stockholm, Sweden

[2] Royal Inst Technol, Engn Mat Phys Div, SE-10044 Stockholm, Sweden

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2001年 / 225卷 / 1-2期

关键词：

nanoparticles; superparamagnetism; surfactant; coprecipitation; ferrofluid;

D O I：

10.1016/S0304-8853(00)01224-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Synthesis and coating of superparamagnetic monodispersed iron oxide nanoparticles was carried out by chemical solution method. Controlled co-precipitation technique was used to prevent undesirable critical oxidation of Fe2+. The obtained Fe3O4 nanoparticles were coated with sodium oleate. Low-held AC susceptibility and SQUID measurement show superparamagnetism with a blocking temperature around 150K, and almost immeasurable remanence and coercivity. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：30 / 36

页数：7