引用本文:
【打印本页】   【HTML】   【下载PDF全文】   View/Add Comment  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 894次   下载 8 本文二维码信息
码上扫一扫!
分享到: 微信 更多
Characterization and Magnetic Property of Fe3O4-Dextran Nano Particles Prepared by Organic Salt
Yang Yudong*,Song Zhiwei,Lang Yong
Author NameAffiliationE-mail
Yang Yudong* School of Science, Shenyang University of Technology, Shenyang 110023; Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016 songzx07@163.com 
Song Zhiwei Institute of Resource & Environmental Engineering Heilongjiang Institute of Science & Technology, Harbin 150027  
Lang Yong Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016  
Abstract:
By means of chemical co-deposition method in which added Ferric citrate and Ferrous Gluconate, Fe3O4-Dextran composite nano-particles having average diameter 26 nm, was obtained. The particles had a core of diameter 4.1 nm Fe3O4 with a shell of thickness 11 nm Dextran. In the experiment the critical structure of Fe3O4 inorganic particles abstained without N2 protection had no changes. From the result, it can be proven that organic salt has anti oxidation properties and the composite particles have superparamagnetic whose good magnetization is 52 emu/g at 300 K, and 63 emu/g at 5 K. The structure, pattern diameter and magnetic properties of the Fe3O4-Dextran composite particles were examined by means of TEM, XRD, DLS and VSM.
Key words:  Dextran-Fe3O4, Monodisperse, Organic salt, Superparamagnetic
FundProject:
有机盐制备的Fe3O4-葡聚糖纳米粒子的磁性能及表征
杨玉东*,宋志伟,梁勇
摘要:
利用葡糖酸铁(C12H22FeO14·2H2O)和柠檬酸铁(C6H5O7Fe·5H2O)参与的化学共沉积法制备出单分散核心氧化铁的平均粒径为4.1 nm,葡聚糖厚度约为11nm,总体平均粒径为26nm的Fe3O4-葡聚糖复合纳米粒子.研究结果表明,复合粒子Fe3O4-葡聚糖具有超顺磁性.制备过程中没有N2保护,得到的Fe3O4无机粒子的晶体结构几乎没有发生变化,证明了有机盐的抗氧化性,合成的Fe3O4-葡聚糖复合纳米粒子具有较好的磁性能.其在室温下(300K)的饱和磁化强度为52 emu/g,低温下(5
关键词:  葡聚糖-Fe3O4  单分散  有机盐  超顺磁性
DOI:10.1088/1674-0068/18/4/605-608
分类号: