材料工程Issue(9)：35-38,4.
一步法原位合成Fe2O3/Ag磁性核壳粒子
Synthesis of Fe2O3/Ag Core-shell Composite Nanoparticles by One Step In-situ Method
郭巍 1吴行 1郑振忠 2陈庆昌 2张明2
作者信息
- 1. 装甲兵工程学院装备再制造系,北京100072
- 2. 北京特种车辆研究所,北京100072
- 折叠
摘要
Abstract
α-Fe2O3 and Fe2O3/Ag core-shell nanocomposites were synthesized by one step in-situ method. The structure of α-Fe2O3 and Fe2O3/Ag core-shell composite nanoparticles was confirmed by XRD, TEM and UV spectra. The results show that α-Fe2O3 and Fe2O3/Ag core-shell nanocomposite can be synthesized by one step, the average size of the a-Fe2O3 nanocomposites is 20-30nm, with a thickness of 10-15nm of Ag layer, core-shell structure is formed. Conductivity of Fe2O3/Ag core-shell nanocomposites is 0. 317S/cm. Saturation magnetization of a-Fez03 is 1. 28A · m2 · kg"1 , coercive force is 8. 2784kA · m-1. Saturation magnetization of Fe2O3/Ag is 0. 92A · m2 · kg-1 , coercive force is equal with α-Fe2O3 particles.关键词
Ag纳米粒子/Fe2O3/核壳/原位Key words
silver nanoparticle/Fe2O3/ core-shell/ in-situ method分类
通用工业技术引用本文复制引用
郭巍,吴行,郑振忠,陈庆昌,张明..一步法原位合成Fe2O3/Ag磁性核壳粒子[J].材料工程,2012,(9):35-38,4.
