La、Ce掺杂对水热法合成镍锌铁氧体的影响  

La/Ce Doping Effects on the Nickel-Zinc Ferrite Synthesized by Hydrothermal Method

作　　者：陈喜蓉[1] 陈早明[2] 胡德远[1] 吴叔召[1] 

机构地区：[1]江西理工大学材料与化学工程学院,江西赣州341000 [2]江西理工大学工程研究院,江西赣州341000

出　　处：《上海有色金属》2011年第2期57-60,共4页Shanghai Nonferrous Metals

摘　　要：采用水热合成法制备镍锌铁氧体粉体,以稀土元素La、Ce进行掺杂,利用SEM和XRD等手段对样品进行表征。结果表明,La3+、Ce3+掺杂后,La3+、Ce3+离子掺杂进入镍锌铁氧体晶格后,会产生一定的晶格畸变,造成晶粒常数的增大,但对晶体的形貌影响不大。除存在少量大颗粒,立方尖晶石相Ni0.35Zn0.65Fe1.95La0.05O4和Ni0.35Zn0.65Fe1.95Ce0.05O4颗粒分布均匀,粒径大小基本一致。Nickel-zinc ferrite powders were prepared by hydrothermal synthesis,with La/Ce doping.The performances were characterized by SEM and XRD.The results show that La3＋,Ce3＋ ions have entered into the nickel zinc ferrite crystal lattices.It could cause certain lattice distortion and grain size increase,while the crystal morphology was not greatly affected.Except several big particles,most of the cubic spinel phase samples Ni0.35Zn0.65Fe1.95La0.05O4 and Ni0.35Zn0.65Fe1.95Ce0.05O4 were distributed evenly.

关 键 词：镍锌铁氧体 水热合成 稀土掺杂 

分 类 号：TM277[一般工业技术—材料科学与工程]