聚合-热解法制备Co_(0．2)Zn_(0．2)Mn_(0．6)Fe_2O_4纳米颗粒及其表征  

PREPARATION OF Co_(0.2)Zn_(0.2)Mn_(0.6)Fe_2O_4 NANOPARTICLES BY A POLYMER-PYROLYSIS ROUTE AND ITS CHARACTERIZATION

作　　者：刘献明[1] 付绍云[1] 肖红梅[1] 李元庆[1] 

机构地区：[1]中国科学院理化技术研究所

出　　处：《金属学报》2006年第5期497-499,共3页Acta Metallurgica Sinica

基　　金：国家高技术研究发展计划资助项目 2003AA305890

摘　　要：采用聚合-热解法制备了Co0．2Zn0．2Mn0．6Fe2O4磁性纳米颗粒,借助热重分析法(TG)、X射线衍射(XRD)、透射电镜(TEM)和振动样品磁强计(VSM)对产物进行了表征．结果表明,产物具有尖晶石结构,无杂相,粒径分布范围在 8-15nm之间．常温下该材料的剩磁强度和矫顽力分别为0．516和2．388 kA／m．The structural and magnetic characteristics ofthe Co0.2Zn0.2Mn0.6Fe2O4 nanoparticles prepared by a polymer-pyrolysis route were analyzed by means of thermogravimetry （TG）, powder Xray diffraction （XRD）, transmission electron microscopy （TEM） and vibrating sample magnetometer （VSM）. The results revealed that the as-obtained sample exhibited the spinel structure, nanosized particles with the diameter of 8-15 nm and good crystallinity. Magnetic measurements at room temperature showed that the remnant magnetism and coercitivity for the sample were 0.516 and 2.388 kA/m, respectively.

关 键 词：纳米颗粒 聚合-热解法 磁性 剩磁强度 矫顽力 

分 类 号：O614.7[理学—无机化学]