花枝状纳米银的制备及对4-硝基苯酚加氢反应的催化性能

材料导报

2019, Vol. 33

Issue (z1): 307-309

金属与金属基复合材料

花枝状纳米银的制备及对4-硝基苯酚加氢反应的催化性能

巢云秀, 杨宏伟, 原禧敏, 李郁秀, 李耀

昆明贵金属研究所,稀贵金属综合利用新技术国家重点实验室,昆明 650106

Preparation and Catalytic Activity in p-Nitrophenol Hydrogenation of Flower-dendritic Nano Silver

CHAO Yunxiu, YANG Hongwei, YUAN Ximin, LI Yuxiu, LI Yao

State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals, Kunming Institute of Precious Metals, Kunming 650106

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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。

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关键词: 纳米银花枝状结构 4-硝基苯酚加氢还原

Abstract: 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 flower-dendritic silver nanopowder was explored. Furthermore, the as-prepared silver nanopowder exhibited superior catalytic activity in the hydrogenation reduction of p-Nitrophenol.

Key words: nano silver flower-dendritic structure 4-nitrophenol hydrogenation reduction

出版日期: 2019-05-25 发布日期: 2019-07-05

ZTFLH:

TM241

基金资助: 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)

作者简介: 巢云秀,2016年6月毕业于武汉工程大学高分子材料科学与工程专业,获得工学学士学位。现为昆明贵金属研究所材料学专业的硕士研究生,导师为杨宏伟博士,研究方向为片状纳米银的制备及应用研究。杨宏伟,昆明贵金属研究所,副研究员。2012年7月毕业于厦门大学,物理化学专业博士学位。同年加入昆明贵金属研究所工作至今,重点研究贵金属纳米材料的制备、表征以及应用研究。nanolab@ipm.com.cn

引用本文:

巢云秀, 杨宏伟, 原禧敏, 李郁秀, 李耀. 花枝状纳米银的制备及对4-硝基苯酚加氢反应的催化性能[J]. 材料导报, 2019, 33(z1): 307-309.
CHAO Yunxiu, YANG Hongwei, YUAN Ximin, LI Yuxiu, LI Yao. Preparation and Catalytic Activity in p-Nitrophenol Hydrogenation of Flower-dendritic Nano Silver. Materials Reports, 2019, 33(z1): 307-309.

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http://www.mater-rep.com/CN/ 或 http://www.mater-rep.com/CN/Y2019/V33/Iz1/307

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