摘要
在正丙醇–水体系中,以NaOH为沉淀剂,用共沉淀法制备了纳米Fe3O4粒子,并用TEM和XRD对其进行了表征。考察了制备过程中工艺参数对Fe3O4颗粒大小的影响,并对影响机理进行了探讨。结果表明:纳米Fe3O4的平均粒径约为15nm;其饱和磁化强度可达73.34Am2/kg,比用水热法(42Am2/kg)和共沉淀法(60Am2/kg)制备的Fe3O4纳米粒子的要高。
Nano-sized Fe3O4 particles were prepared by coprecipitation method in n-propyl alcohol-water solution with NaOH as precipitant. The Fe3O4 nanoparticles were characterized by TEM and XRD. The process parameters which influenced the size of nanometer Fe3O4 particles were studied and the influence mechanism was also discussed. The average size of the particles prepared by the above method is about 15 nm. Magnetic properties of Fe3O4 nanoparticles were researched. Its saturation magnetization reaches 73.34 Am2/kg higher than that made by hydrothermal method （42 Am^2/kg） and coprecipitation method （60 Am^2/kg）.
出处
《电子元件与材料》
CAS
CSCD
北大核心
2007年第7期60-62,共3页
Electronic Components And Materials
基金
广西工学院硕士基金资助项目(061648)
关键词
无机非金属材料
纳米FE3O4
正丙醇-水共沉淀法
饱和磁化强度
non-metallic inorganic material
nano Fe3O4
n-propyl alcohol-water coprecipitation method
saturation magnetization
