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溶胶—凝胶法制备MeFe_2O_4/SiO_2(Me=Co,Ni,Zn)纳米复合材料 被引量：2

Preparation of Nanocomposites MeFe_2O_4/SiO_2(Me=Co,Ni,Zn) by Sol-gel Method
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摘要 采用溶胶—凝胶法制备了MeFe2O4/SiO2(Me=Co,Ni,Zn)纳米复合材料.利用X射线衍射仪(XRD)、透射电镜(TEM)和振动样品磁强计(VSM)对样品的结构、形貌和磁性进行分析.结果表明:经900℃热处理后得到的样品均为粒径均匀的尖晶石结构铁氧体纳米复合材料.室温下CoFe2O4/SiO2和NiFe2O4/SiO2为亚铁磁性,ZnFe2O4/SiO2则呈顺磁性. MeFe2O4/SiO2（ Me = Co, Ni, Zn）nanocomposites have been prepared by solgel method. The structure, morphology and magnetic properties of samples are investigated by X - ray diffraction （XRD）, tramsmission electron microscope（TEM）, and vibrating sample magnometry（VSM ）. The results show that all samples are uniform spinel ferrite nanocomposites after being calcined at 900 ℃. CoFe2O4/SiO2 and NiFe2O4/SiO2 are ferrimagnectism at room temperature, while ZnFe2O4/SiO2 is paramagnetism.
作者 华杰 刘梅 徐仕翀 张玉梅 尹基哲 李海波
机构地区 吉林师范大学信息技术学院 吉林师范大学物理学院
出处 《吉林师范大学学报（自然科学版）》 2007年第4期69-70,89,共3页 Journal of Jilin Normal University:Natural Science Edition
基金 吉林省科学技术发展计划项目(20060803)
关键词 铁氧体 纳米复合材料 结构 磁性 ferrite nanocomposite structure magnetic property
分类号 O482.5 [理学—固体物理]
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参考文献6

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共引文献24

同被引文献28

  • 1黄祥卉,陈振华.纳米CoFe_2O_4/SiO_2磁性复合体的制备与表征[J].科学通报,2006,51(6):660-664. 被引量：14
  • 2李海波,陈敬艳,刘梅,冯明,华杰.纳米复合材料CoFe_2O_4/SiO_2的制备和表征[J].高等学校化学学报,2007,28(4):614-616. 被引量：6
  • 3Xiao S H, Xu H J, Hu J, et al. Dependence of structural and magnetic properties of CoFe20a/SiO2 nanocomposites on annealing temperature and component ratio[J]. Physica E, 2008,40(10) : 3064.
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  • 5Tang D P, Yuan R, Chai Y Q, et al. Magnetic-core/porous- shell CoFe2 O/SiO2 composite nanoparticles as immobilized affinity supports for clinical immunoassays[J]. Adv Funct Mater, 2007,17(6) : 976.
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  • 7Li C J, Xu G R. Template preparation of strontium hexaferri- te ($rFel2 Ot9 ) micro/nanostructures: Characterization, syw thesis mechanism and magnetic properties [J]. Maler Res Bull, 2011,46(1) : 119.
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引证文献2

吉林师范大学学报（自然科学版）
2007年 第4期

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