Preparation and characterization of strong superparamagnetic nanocomposites
The Fe3O4 magnetic fluid was prepared by the chemical method in aqueous solution at room temperature1. To obtain inorganic nonoparticle with higher saturation magnetization, we used homogenous precipitation method to synthesize La/Ce/Ni doped Fe3O4 particles. The crystal structure, particle morphology, element components were characterized with X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM ) and inductively-coupled plasma atomic emission spectrometer (ICPAES), and the magnetic properties were evaluated on a vibrating sample magnetometer (VSM).Then the effects of the species of rare earth on magnetic responsibility were discussed. The specific saturation magnetization of La/Ce/Ni doped Fe3O4 was higher considerably than that of pure Fe3O4. La/Ce/Ni doped Fe3O4 particles are superparamagnetic.
preparation strong magnetic doped nanocomposites saturation magnetization
Ma Jimei Tian Mengchao
Zhongyuan University of Technology, Zhengzhou 450007, China
国际会议
第八届国际测试技术研讨会(8th International Symposium on Test and Measurement)
重庆
英文
1332-1335
2009-08-01（万方平台首次上网日期，不代表论文的发表时间）