摘要
以柠檬酸和聚乙烯吡咯烷酮(PVP)为保护剂,在水相中通过硫酸亚铁还原硝酸银一步合成花枝状纳米银粉。结合X射线粉末衍射(XRD)、扫描电子显微镜(SEM)等结构表征手段,对花枝状纳米银粉的微观结构进行分析,并对其可能的形成机理进行了初步的探讨。此外,花枝状纳米银粉在4-硝基苯酚的加氢反应中表现出优异的催化活性。
The flower-dendritic silver nanopowder has been one-step synthesized by reducing silver nitrate with ferrous sulfate under the protection of citric acid and PVP in aqueous solution. The microstructure of flower-dendritic silver nanopowder was investigated through different characteristic methods including X-ray powder diffraction ( XRD) and scanning electron microscopy ( SEM), and the possible formation mechanism of flowerdendritic silver nanopowder was explored. Furthermore,the as-prepared silver nanopowder exhibited superior catalytic activity in the hydrogenation reduction of p-Nitrophenol.
作者
巢云秀
杨宏伟
原禧敏
李郁秀
李耀
CHAO Yunxiu;YANG Hongwei;YUAN Ximin;LI Yuxiu;LI Yao(State Key Laboratory of Advanced Technologies for Comprehensive Utilization of PlatinumMetals,Kunming Institute of Precious Metals,Kunming 650106)
出处
《材料导报》
EI
CAS
CSCD
北大核心
2019年第A01期307-309,共3页
Materials Reports
基金
国家自然科学基金(21761016)
云南省重点新产品开发项目(2016BA007)
云南省中青年学术与技术带头人后备人才项目(2017HB060)
云南省重大研发专项(2018ZE001)
云南省面上项目(2017FB142)
云南省院所开发专项(2016DC033)~~
关键词
纳米银
花枝状结构
4-硝基苯酚
加氢还原
nano silver
flower-dendritic structure
4-nitrophenol
hydrogenation reduction
