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单分散MnFe2O4/SiO2纳米粒子的合成和表征
Synthesis and Characterization of Monodisperse Superparamagnetic MnFe2O4/Silica Nanospherical Composites
【Author】 Fang Tan1,Zhi-Xia Zhuang1,2*,Hai-Bo Liu1,Huang-Hao Yang2,Xiao-Ru Wang1,2 1. The Key Laboratory of Analytical Sciences of MOE, Department of Chemistry, Xiamen University, Xiamen 361005, P.R.China ,2.The First Institute of Oceanography, SOA, Qingdao 266061, P.R. China
【机构】 厦门大学化学化工学院化学系现代分析科学教育部重点实验室; 国家海洋局第一海洋研究所;
【Abstract】 MnFe2O4 nanoparticles are synthesized by using sodium dodecylbenzenesulfonate (NaDBS) to form water-in-toluene reverse micelles. A water-in-oil microemulsion method has been applied for the preparation of silica-coated MnFe2O4 nanoparticles,and two different nonionic surfactants (Triton X-100 and Igepal CO-520) have been used for the preparation of microemulsions. As synthesized, these particles are coated with a layer of silica. MnFe2O4/Silica nanospherical composites have been studied with X-ray diffraction and transmission electron microscopy (TEM ). The results prove that these MnFe2O4 /SiO2 nanoparticles are truly superparamagnetic.
- 【会议录名称】 中国化学会第二十五届学术年会论文摘要集(上册)
- 【会议名称】中国化学会第二十五届学术年会
- 【会议时间】2006-07
- 【会议地点】中国吉林长春
- 【分类号】O614.711
- 【主办单位】中国化学会