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

被引：663
|
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
收藏
页码：30 / 36
页数：7
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