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›› 2013, Vol. 13 ›› Issue (3): 525-530.

• 材料工程专栏 • 上一篇    下一篇

[Bmim]FeCl4中金纳米材料的合成及其催化性能

张树恒 张香平 申鹏 陈飞雄   

  1. 中国科学院过程工程研究所多相复杂系统国家重点实验室 中国科学院过程工程研究所 中国科学院过程工程研究所 中国科学院过程工程研究所
  • 收稿日期:2013-03-19 修回日期:2013-04-15 出版日期:2013-06-20 发布日期:2013-06-20
  • 通讯作者: 张树恒

Synthesis of Gold Nanoparticles in [Bmim]FeCl4 and Their Catalytic Properties

ZHANG Shu-heng ZHANG Xiang-ping SHEN Peng CHEN Fei-xiong   

  1. State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences Institute of process Engineering, CAS Institute of process Engineering, CAS Institute of process Engineering, CAS
  • Received:2013-03-19 Revised:2013-04-15 Online:2013-06-20 Published:2013-06-20
  • Contact: ZHANG Shu-heng

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摘要： 在1-丁基-3-甲基咪唑四氯化铁盐([Bmim]FeCl4)中用油胺还原AuCl3制备了2种金纳米材料，研究了产物的形貌特征，考察了所制纳米材料催化NaBH4还原对硝基苯酚制备对胺基苯酚的性能. 结果表明，产物形貌主要由[Bmim]FeCl4/油胺摩尔比决定，比值从0.5增至2，金纳米材料从枝状结构转变成花状结构，长径比约为10的棒变为径向长度200 nm的片层；枝状纳米颗粒比花状纳米颗粒的催化性能好.

关键词: 纳米材料, 晶体生长, 微观结构, [Bmim]FeCl4, 催化性能

Abstract: Au nanoparticles were synthesized by reducing chloroauric acid with oleylamine in 1-butyl-3-methylimidazolium tetrachloroferrate ([Bmim]FeCl4). Their morphology was investigated by TEM, and their catalytic properties on the reduction of 4-nitrophenol by NaBH4 were studied. The results reveal that the size and shape of particles are mostly determined by the molar ratio of [Bmim]FeCl4 to oleylamine. Au nanoparticles change from branched shape to flake one while the ratio increases from 0.5 to 2. Branched nanoparticles show improved catalytic activity compared with flake-shaped nanoparticles.

Key words: nanoparticles, crystal growth, microstructure, [Bmim]FeCl4, atalytic property

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