Isolation of magnetite nanoparticles by colloidal dispersant in aqueous solution

被引：5
|
作者：
Shauo, CN
Chao, CG
Cheng, MC
机构：
[1] Natl Chiao Tung Univ, Dept Mat Sci & Engn, Hsinchu 300, Taiwan
[2] Chung Shan Inst Sci & Technol, Mat & Electroopt Res Div, Taoyuan 325, Taiwan
来源：
MATERIALS TRANSACTIONS | 2006年 / 47卷 / 01期
关键词：
nanometer-scale; magnetite; dispersing system; dispersant; superparamagnetism;
D O I：
10.2320/matertrans.47.143
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Nanometer-scale magnetite particles were prepared in a dispersant system with a dispersant at a very low concentration. The mean sizes of the particles prepared under optimum conditions were determined using transmission electron microscopy (TEM) to be approximately 3.8 nm. X-ray diffraction and electron diffiraction pattern showed that the particles' phase was consistent with magnetite. The magnetic characteristics were studied using a vibration sample magnetometer (VSM). The dried samples exhibited approximately superparamagnetic behavior.
引用
收藏
页码：143 / 148
页数：6
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