硬脂酸凝胶法制备纳米尖晶石NiFe_2O_4  

Preparation of NiFe_2O_4 Nanocrystalline by Stearic Acid Gel Method

作　　者：孟建华[1] 杨桂琴[1] 王秀宇[1] 严乐美[1] 韩冰[1] 

机构地区：[1]天津大学理学院,天津300072

出　　处：《化学工业与工程》2004年第5期344-346,共3页Chemical Industry and Engineering

摘　　要：采用硬脂酸凝胶法制备NiFe2O4纳米晶,用TG-DTA、XRD和TEM对产物进行表征,并与用共沉淀法制得的NiFe2O4粒子进行比较。结果表明,用硬脂酸凝胶法制备NiFe2O4粒子粒度分布均匀,粒径小,无硬团聚现象。In this paper,NiFe_2O_4 nanocrystalline particulates were prepared by stearic acid gel method.The products were characterized by TG-DTA,XRD and TEM and were compared with those fabricated by co-precipitation.The results showed that NiFe_2O_4 nanocrystalline prepared by stearic acid gel method had average distributed uniformity and small grain size without aggregation.

关 键 词：硬脂酸凝胶法 NIFE2O4 纳米晶 

分 类 号：TQ139.2[化学工程—无机化工] O753.1[理学—晶体学]