四川师范大学学报（自然科学版）2011，Vol.34Issue(3)：385-387,3.DOI:10.3969/j.issn.1001-8395.2011.03.022
超顺磁性Fe3O4纳米粒子的制备和表征
Preparation and Characterization of Super-paramagnetic Fe304 Nanoparticles
摘要
Abstract
The superparamagnetic Fe3O4 nanoparticle has been attracting great attention and is an important topic in the field of advanced materials, owing to its many unique properties and potential applications. In this paper, the superparamagnetic Fe3O4 nanoparticles were synthesized by the coprecipitation method, the prepared samples were characterized by X-ray diffraction(XRD) and scanning electron microscopy( SEM), the magnetic properties measurement was performed by VSM. The results indicate that the average diameter of the spherical Fe3O4 with pure anti-spinel structure is i5 nm, and that magnetization of the magnetic powders get to saturation, the saturated magnetization is 63 A · m2 · kg-1 when the external field is at 6 kOe. The prepared Fe3O4 nanoparticles show a typical superparamagnetism at room temperature, there are enormous potential applications for the superparamagnetic Fe3O4 nanoparticles in various fields, such as biomedicine, information storage, magnetic fluids, catalysts, and so on.关键词
Fe3O4/纳米粒子/制备/表征Key words
magnetite/ nanoparticle/ preparation/ characterization分类
化学化工引用本文复制引用
文德,刘妙丽,李强林..超顺磁性Fe3O4纳米粒子的制备和表征[J].四川师范大学学报（自然科学版）,2011,34(3):385-387,3.基金项目
四川省教育厅自然科学重点基金(07ZC004)资助项目 （07ZC004）
