油胺
纳米颗粒
催化作用
材料科学
胶体金
化学工程
氧化铁纳米粒子
降水
纳米技术
还原剂
磁性纳米粒子
图层(电子)
氧化物
4-硝基苯酚
化学
冶金
有机化学
气象学
工程类
物理
作者
Yuanpeng Wu,Tao Zhang,Zhaohui Zheng,Xiaobin Ding,Yuxing Peng
标识
DOI:10.1016/j.materresbull.2009.11.012
摘要
A novel approach has been developed to synthesize gold-coated iron oxide nanoparticles. Fe3O4 nanoparticles were initially prepared by co-precipitation method and subsequently coated with gold layer under oleylamine reduction of AuCl4− at room temperature. The core–shell nanoparticles showed magnetic recoverable catalytic activity for the reduction of 4-nitrophenol with NaBH4.
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