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α-Fe_2O_3纳米晶自组装磁性微球的制备及性能研究

Preparation and Properties of Iron Oxide Magnetic Microspheres
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摘要 以硝酸铁(Fe(NO3)3·9H2O)和氨水(NH3·H2O)为原料,以聚乙烯吡咯烷酮(PVP)为表面活性剂,采用沉淀法制备了α-Fe2O3纳米晶自组装的磁性微球。利用X射线衍射仪和扫描电镜对所得产物进行了表征分析,并在室温下测量其磁学性能。结果表明,所制备的磁性微球由α-Fe2O3纳米晶自组装而成,其粒径大小在0.9-1.3μm范围。在室温下测试了微球的磁学性能,其剩余磁感应强度为0.31 emu/g,矫顽力为4100 Oe,表现出较强的铁磁性。 α-Fe2O3 nanocrystal self assembling sphere-like particles had been successfully prepared by homogenous precipitation method using Fe( NO3)3·9H2O and NH3·H2O as main raw materials.Morphology and structure of the products were characterized by X-ray diffraction,and scanning electron microscopy. The results show that the magnetic microspheres were self-assembled byα-Fe2O3 nanocrystal,and the average diameter of the microsphere is about 0. 9-1. 3 μm. The microsphere exhibits a ferromagnetic behavior with the remanent magnetization( Mr) and coercive force( Hc) are 0.31 emu/g and 4100 Oe,respectively.
出处 《硅酸盐通报》 CAS CSCD 北大核心 2014年第10期2505-2507,共3页 Bulletin of the Chinese Ceramic Society
基金 自旋电子与纳米材料安徽省重点实验室开放课题(2014YKF46)
关键词 Α-FE2O3 磁性微球 磁学性能 α-Fe2O3 magnetic microsphere magnetic property
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  • 1陈林深,吕光烈.Fe_3O_4的X射线微结构特征与催化活性间的关系[J].化学学报,1995,53(10):966-971. 被引量:16
  • 2王敬念,李晓东,杨荣杰.Fe_2O_3/CNTs纳米粒子的制备及其对高氯酸铵燃速的催化作用[J].火炸药学报,2006,29(2):44-47. 被引量:18
  • 3刘建勋,李凤生,陈爱四,杨永林,马振叶.纳米Fe_2O_3的制备及其对AP热分解的催化作用[J].推进技术,2006,27(4):381-384. 被引量:16
  • 4Liu L, Kou H Z, Ling W, et aI. Surfactant-assisted synthesis of ct-Fe2 03 nanotuhes and nanorods with shape-dependent magnetic properties [ J ]. J Phys Chem B ,2006,110 ( 31 ) : 15218 - 15223.
  • 5Zheng Y H, C heng Y, Wang Y S, et al. Quasicubic a-Fe2 03 nanoparticles with excellent catalytic performance [ J ]. J Phys Chem B,2006,110 (7) : 3093 - 3097.
  • 6Sreeram K J, Indumathy R, Rajaram A, et al. Template synthesis of highly crystalline and monodisperse iron oxide pigments of nanosize [ J]. Mater Res Bu11,2006,41 (10) :1875 - 1881.
  • 7Wu C Z, Yin P,Zhu X, et al. Synthesis of hematite ( a-Fe2 03 ) nanorods : Diameter-size and shape effects on their applications in magnetism,lithium ion battery, and gas sensors J ]. J Phys Chem B,:2006,110 ( 36 ) : 17806 - 17812.
  • 8Chen J, Xu L N, Li W Y, et al. ct-Fe2 03 Nanotubes in gas sensor and lithium-ion battery applications [ J ]. Adv Mater,2005,17 (5) : 582 - 586.
  • 9Wang X, Gao L S ,Zheng H G, et al. Fabrication and electrochemical properties of ct-Fe203 nanoparticles [ J ]. J Cryst Growth ,2004,269 (2 -4 ) :489 -492.
  • 10Wang X, Chen X Y, Ma X C, et al. Low-temperature synthesis of c-Fe2 03 nanoparticles with a closed cage structure [ J ]. Chem Phys Lett,2004,384 (4 -6) :391 -393.

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