Synthesis and Performance of Core-Shell Magnetic Alumina Spheres

4th International Conference on Applied Materials and Manufacturing Technology

材料科学;机械制造

Ting-Ting, He^1 ; Qing-Tao, Fu^1 ; Shan-Liang, Mu^1 ; Chen-Guang, Liu^2

School of Chemistry and Resources Environment, LinYi University, Linyi

276000, China^1

College of Chemical Engineering, China University of Petroleum( East), Qingdao

266580, China^2

关键词: Core shell;    Distribution of particles;    Oil column;    Pore volume;    Shell structure;    Specific saturation magnetization;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/423/1/012141/pdf
DOI  :  10.1088/1757-899X/423/1/012141

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Magnetic alumina micro-spheres with Fe core/Al2O3 shell structure were prepared by the oil column method. It shows that the specific surface area and pore volume of the Fe/SiO2/Al2O3 composite micro-spheres calcined at 600°C were 185 m2/g and 0.98 cm3/g, respectively. The specific saturation magnetization is 26.0 emu/g. The distribution of particle size was in the range of 100∼200 μm.