气泡液膜法-水热法制备Ni0.3Zn0.7Fe2O4磁性材料  

Preparation of nanosized Ni_(0.3)Zn_(0.7)Fe_2O_4 using gas bubble liquid membrane process and hydrothermal method

作　　者：左明明[1] 熊小敏[1] 曾能 李宗葆 杨第伦 

机构地区：[1]中山大学物理科学与工程技术学院,光电材料与技术国家重点实验室,广东广州510275 [2]中山市应用化学研究所,广东中山528436

出　　处：《功能材料》2010年第A03期432-434,共3页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(10974259);高校基本科研业务费中山大学青年教师培育资助项目(09lgpy29)

摘　　要：首先采用气泡液膜法制备以Fe(OH)3、Ni(OH)2、Zn(OH)2组成的Ni0.3Zn0.7Fe2O4纳米前驱体,然后在高压水热条件下进行水热处理,制备出Ni0.3Zn0.7Fe2O4纳米粉体。X射线衍射仪(XRD)分析表明,Ni0.3Zn0.7Fe2O4纳米粉体不含有杂相,晶粒度约为16nm。用振动样品磁强计(VSM)测量其磁滞回线,结果表明,Ni0.3Zn0.7Fe2O4纳米粉体有较高的饱和磁化强度(87.56A.m2/kg),较小剩磁(14.35A.m2/kg),具有较好的应用前景。By means of a gas bubble liquid membrane（GBLM） process the Ni0. 3Zn0. 7Fe2O4 precursor was prepared from the precipitation reaction of FeCl3, NiCl2 and ZnCl2 mix aqueous solution with NaOH aqueous solution with the use of sodium stearate as coating agent. Pure Ni0. 3Zn0. 7Fe2O4 magnetic materials were obtained after the precursor was cured with hydrothermal（HT） method at subcritical temperature of water, which was verified by XRD. VSM measurements show that saturation magnetization of the ferrite is up to be 87. 56A·m2/kg, and magnetic coercivity Hc to be 14A·m2/kg. These implied the potential application of GBLM-HT process in the large scale production of ferrites at low temperature.

关 键 词：气泡液膜法 水热法 镍锌铁氧体 磁性材料 

分 类 号：TN972.44[电子电信—信号与信息处理] TM27[电子电信—信息与通信工程]