硅酸盐学报2007，Vol.35Issue(8)：987-990,4.
磁性核壳Fe3O4/Ag纳米复合粒子的制备及性能
PREPARATION OF MAGNETIC CORE-SHELL Fe3O4/Ag NANOPARTICLES AND ITS PROPERTIES
摘要
Abstract
Fe3O4/Ag core-shell nanoparticles were prepared by the reduction of Ag[(NH3)2]+ with formaldehyde as reductant, and mercapto-propyl-trimethoxy-silane as an additive. The nanocomposite particles were characterized by X-ray diffraction, field-emission-scanning electron microscopy, differential thermal analysis, vibrating sample magnetometry and HL-5 hall effect testing. The results show that the size distributions of the core-shell Fe3O4/Ag nanocomposites averaged 40-60 nm, with a thickness of 10-15 nm of Ag layer.The volume resistivity of the nanocomposites is 7.757 3×10-4 Ω·cm and the saturation magnetization is 26.37 A·m2/kg.关键词
磁性核壳/四氧化三铁/银/纳米复合粒子/电磁性能Key words
magnetic core-shell/ferroferric oxide/silver/nanocomposite/electromagnetic properties分类
化学化工引用本文复制引用
章桥新,杨丽宁,张佳明,官建国,王一龙..磁性核壳Fe3O4/Ag纳米复合粒子的制备及性能[J].硅酸盐学报,2007,35(8):987-990,4.基金项目
国家"863"计划(2006AA03Z461)和国防预研基金计划(51447020105QT6903)资助项目. （2006AA03Z461）
