四氧化三铁磁性纳米粒子的合成及表征

被引：58

作者：

邱星屏

机构：

[1] 厦门大学化学化工学院材料科学系!厦门

来源：

厦门大学学报(自然科学版) | 1999年 / 05期

关键词：

纳米粒子,超顺磁性,四氧化三铁,晶体;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

采用滴定水解及Ｍａｓｓａｒｔ合成法分别制备了直径在８ｎｍ左右的Ｆｅ３Ｏ４磁性纳米粒子，粒子的结构组成通过Ｘ射线粉衍射得到证实．透射电镜研究表明，由滴定水解法制备的磁性粒子的外形主要为球形，粒子大小比较均匀，所有粒子都在５～１０ｎｍ之间．而由Ｍａｓｓａｒｔ合成法制备得到的Ｆｅ３Ｏ４磁性粒子则呈现从球形到立方体形的多种形态，并且粒径分布较宽．磁性测量表明，由滴定水解及Ｍａｓｓａｒｔ合成法合成的Ｆｅ３Ｏ４磁性粒子的饱和磁矩分别为７１和６９Ａｍ２ｋｇ－１，仅比块体Ｆｅ３Ｏ４的磁性低约２０％．

引用

页码：711 / 715

页数：5

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