One-step synthesis of Au-Ag alloy nanoparticles by a convenient electrochemical method

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	One-step synthesis of Au-Ag alloy nanoparticles by a convenient electrochemical method
	M. Zhou; S. H. Chen; S. Y. Zhao; H. Y. Ma
	2006
发表期刊	Physica E-Low-Dimensional Systems & Nanostructures
ISSN	1386-9477
卷号	33 期号:1 页码:28-34
摘要	Gold-silver alloy nanoparticles with various mole ratios were synthesized in aqueous solution by an electrochemical co-reduction of chloroauric acid (HAUCl(4)) and silver nitrate (AgNO(3)) in the presence of poly(vinyl-pyrrolidone) (PVP) used as a protecting agent. The UV-visible absorption spectra of the bimetallic systems and the physical mixtures of individual metallic nanoparticles suggested the formation of alloy nanoparticles. The absorption maximum of the plasmon band shifts linearly to the red with increasing Au content. The size distribution of the alloy nanoparticles was examined using transmission electron microscopy. The EDX analysis on individual particles confirmed the presence of two metals in a particle. The X-ray diffraction also confirmed the formation of homogeneous gold-silver nanostructure. The effects of the preparation conditions including the concentration of polymer stabilizer (PVP), the molar ratio of HAuCl(4) and AgNO(3) and reaction time were investigated. Also, the formation process for bimetallic nanoparticles was discussed. (c) 2006 Elsevier B.V. All rights reserved.
部门归属	shandong univ, dept chem, jinan 250100, peoples r china. state key lab corros & protect, shenyang 110016, peoples r china.;chen, sh (reprint author), shandong univ, dept chem, jinan 250100, peoples r china;shchen@sdu.edu.cn
关键词	Electrochemical Synthesis Alloy Nanoparticles Polymer Stabilizer Gold-silver Alloy Shell Nanoparticles Metal-clusters Size Phase Colloids Nanorods Surfactant Silica
URL	查看原文
WOS记录号	WOS:000238492500005
引用统计	被引频次：42[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/34766
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	M. Zhou,S. H. Chen,S. Y. Zhao,et al. One-step synthesis of Au-Ag alloy nanoparticles by a convenient electrochemical method[J]. Physica E-Low-Dimensional Systems & Nanostructures,2006,33(1):28-34.
APA	M. Zhou,S. H. Chen,S. Y. Zhao,&H. Y. Ma.(2006).One-step synthesis of Au-Ag alloy nanoparticles by a convenient electrochemical method.Physica E-Low-Dimensional Systems & Nanostructures,33(1),28-34.
MLA	M. Zhou,et al."One-step synthesis of Au-Ag alloy nanoparticles by a convenient electrochemical method".Physica E-Low-Dimensional Systems & Nanostructures 33.1(2006):28-34.