磁性Fe_3O_4纳米颗粒的可控制备及生长研究  

Shape Controlled Synthesis and Growth Mechanism of Magnetic Fe_3O_4 Nanoparticles

作　　者：白雪莲[1] 都基焱[1] 吴斌[1] 于旭东[1] 房凌晖[1] 于伟[1] 

机构地区：[1]解放军炮兵学院无人机和机械工程系,合肥230031

出　　处：《材料导报》2011年第2期77-80,共4页Materials Reports

基　　金：四十五批博士后科学基金(200904501378);安徽省青年科学基金(10040606Q62)

摘　　要：采用热法合成磁性Fe3O4纳米颗粒,通过精细调控实验条件能对其形状和大小进行有效控制。采用X射线衍射仪、透射电镜、振动样品磁强计等对Fe3O4纳米颗粒的成分、形貌及磁性等进行了表征测试。结果表明,Fe3O4纳米颗粒的饱和磁化强度为62.5emu/g。最后探讨了Fe3O4纳米颗粒的合成机理。The Fe3O4 nanoparticles were prepared by the hydrothermal method. Different morphologies and si zes of Fe3O4 nanostructures were obtained by carefully controlling the conditions. The structure and magnetic property of the powders were investigated by X-ray powder diffractometer（XRD）, transmission electron microscopy（TEM）and vibrating sample magneto-meter（VSM） respectively. The result shows that the saturation magnetization values of the samples synthesized is 62. 5emu/g. The possible formation mechanism of Fe3O4 nanoparticles was discussed.

关 键 词：FE3O4 纳米颗粒 超顺磁 控制 机理 

分 类 号：TB383[一般工业技术—材料科学与工程]