[1]端木云,张宇,马明,等.Fe/Au核壳复合纳米粒子的制备及表征[J].东南大学学报(自然科学版),2004,34(3):340-343.[doi:10.3969/j.issn.1001-0505.2004.03.013]
 Duanmu Yun,Zhang Yu,Ma Ming,et al.Preparation and characterization of Fe/Au core-shell composite nanoparticles[J].Journal of Southeast University (Natural Science Edition),2004,34(3):340-343.[doi:10.3969/j.issn.1001-0505.2004.03.013]
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Fe/Au核壳复合纳米粒子的制备及表征()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
34
期数:
2004年第3期
页码:
340-343
栏目:
化学化工
出版日期:
2004-05-20

文章信息/Info

Title:
Preparation and characterization of Fe/Au core-shell composite nanoparticles
作者:
端木云12 张宇12 马明12 徐爱群3 顾宁12
1 东南大学分子与生物分子电子学教育部重点实验室,南京 210096; 2 东南大学纳米科学与技术研究中心,南京 210096; 3 东南大学分析测试中心, 南京 210096
Author(s):
Duanmu Yun12 Zhang Yu12 Ma Ming12 Xu Aiqun3 Gu Ning12
1 Key Laboratory of Molecular and Bio-molecular Electronics of Ministry of Education, Southeast University, Nanjing 210096, China
2 Research Center for Nano-Scale Science and Technology, Southeast University, Nanjing 210096, Chin
关键词:
反胶束法 复合纳米粒子 Fe Au 核壳结构
Keywords:
reverse micelle method composite nanoparticle Fe Au core-shell structure
分类号:
O648
DOI:
10.3969/j.issn.1001-0505.2004.03.013
摘要:
在十六烷基三甲基溴化铵(CTAB)、正丁醇、正辛烷和水组成的反胶束体系中,用NaBH4作为还原剂前后连续还原硫酸亚铁和氯金酸,在反胶束体系内先生成Fe核,HAuCl4水溶液的加入增大了反胶束的尺寸,由于过量的NaBH4的存在,Au在Fe外层被还原,生成Fe/Au核壳复合纳米粒子,采用光子相关谱(PCS)、透射电镜(TEM)、俄歇电子能谱(AES)、扫描电镜能谱分析(SEM-EDS)等表征,结果表明得到的Fe/Au核壳复合纳米粒子粒径约为27 nm,Au和Fe的质量比大致为3:1,Au作为壳层包覆在Fe纳米粒子外面.
Abstract:
The gold-coated iron(Fe/Au)core-shell composite nanoparticles were prepared by means of a sequential synthesis technique afforded by reverse micelles of cetyltrimethylammonium bromide(CTAB),1-butanol, octane and water. Using NaBH4 as reducing agent, the iron nanoparticles were first formed inside the micelles and then the addition of an aqueous HAuCl4 solution increased the size of the reverse micelles and resulted in the formation of gold layer on the iron nanoparticles due to the existence of excess NaBH4. Photon correlation spectroscopy(PCS), transmission electron microscopy(TEM), auger electron energy spectrometer(AES)and scanning electron microscopy energy dispersive X-ray spectroscopy(SEM-EDS)were used to characterize the core-shell composite nanoparticles. Results show that the mean diameter of the Fe/Au composite nanoparticles is 27 nm and the mass ratio of Au to Fe is about 3:1.

参考文献/References:

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[4] Zhou Weilie,Kumbhar A,Wiemann J,et al.Gold-coated iron(Fe@Au)nanoparticles:synthesis,characterization,and magnetic field-induced self-assembly [J].Journal of Solid State Chemistry, 2001, 159(1):26-31.
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备注/Memo

备注/Memo:
基金项目: 江苏省高技术研究计划资助项目(BG2001006)、国家高技术研究发展计划(863计划)资助项目(2002AA302207)、国家自然科学基金资助项目(60171005).
作者简介: 端木云(1980—),女,硕士生; 顾宁(联系人),男,博士,教授,博士生导师,guning@seu.edu.cn.
更新日期/Last Update: 2004-05-20