Investigation of formation of silica-coated magnetite nanoparticles via sol-gel approach

被引：456

作者：

Deng, YH

Wang, CC

Hu, JH

Yang, WL

Fu, SK ^{[1
]}

机构：

[1] Fudan Univ, Minist Educ, Dept Macromol Sci, Shanghai 200433, Peoples R China

[2] Fudan Univ, Minist Educ, Key Lab Mol Engn Polymers, Shanghai 200433, Peoples R China

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2005年 / 262卷 / 1-3期

基金：

中国国家自然科学基金;

关键词：

magnetic; silica; sol-gel; coating;

D O I：

10.1016/j.colsurfa.2005.04.009

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A systematic investigation of the formation of silica-coated magnetite particles via so]-gel approach was conducted using transmission electron microscope (TEM), X-ray diffraction (XRD) and vibrating sample magnetometer (VSM). The results show that reaction parameters including the type of alcohol, the volume ratio of alcohol to water, the amount of catalyst and the amount of precursor play important roles on the formation of silica-coated magnetite particles, and the obtained silica-coated magnetite nanoparticles possess superparamagnetic property. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：87 / 93

页数：7

共 21 条

[11] PREPARATION AND PROPERTIES OF UNIFORM COATED COLLOIDAL PARTICLES .7. SILICA ON HEMATITE [J].