Magnetite Nanoparticles Surface Coating SiO2 and Magnetic Properties Evaluation

摘要：

　　Magnetite nanoparticles were obtained by liquid phase precipitation method in which the pH value of [FeCl2·4H2O],[FeCl3·6H2O] and [NaOH] solution were controlled.Then the magnetite nanoparticle were scattered in water solution and put in [Na2SiO3] and [HCl],the resultant of reaction SiO2 can be coated on magnetite nanoparticles surface.The morphology and magnetite properties of the coated nanoparticles were evaluated by XRD,TEM,FTIR and VSM.The SiO2 thin film with nanometer size was coated on surface of nanoparticle,so that the magnetic value is decreased with the coating thickness increasing.

关键词： Magnetite nanoparticles Surface coating Magnetic fluid Magnetic properties

作者: Dong-Ying JU Pei Bian Ge-Letu Qing Daling Lu Hong He

作者单位: Faculty of Engineering,Saitama Institute of Technology,Fukaya,Fusaiji 1690,Saitama,369-0293,Japan Advanced Research Center,Saitama Institute of Technology,Fukaya,Fusaiji 1690,Saitama,369-0293,Japan Graduate School of Saitama Institute of Technology,Fukaya,Fusaiji 1690,Saitama,369-0293,Japan Chemical Resources Laboratory,Tokyo Institute of Technology,4259-R1-9 Nagatsuta,Midori-ku,Yokohama,2 State Key Laboratory of Environmental Chemistry and Ecotoxicology,Research Center for Eco-Environmen

会议类型: 国际会议

会议名称: The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))

会议地点: 长沙

会议语种:英文

页码: 1366-1369

在线出版日期: 2007-05-10（万方平台首次上网日期，不代表论文的发表时间）