A Facile Fabrication of Silver-Coated Copper Nanowires by Galvanic Replacement

We demonstrated a general strategy to fabricate silver-coated copper nanowires by a galvanic replacement, which is guided by the chemical principle that metal ions (silver ions) with a relatively high reduction potential can galvanically etch nanostructure made from a less metal (copper). Well-dispe...

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Main Authors:	Xin He, Ruihui He, Qiuming Lan, Feng Duan, Jundong Xiao, Mingxia Song, Mei Zhang, Yeqing Chen, Yang Li
Format:	Article
Language:	English
Published:	Hindawi Limited 2016-01-01
Series:	Journal of Nanomaterials
Online Access:	http://dx.doi.org/10.1155/2016/2127980

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spelling	doaj-95daffe97f864382b6174826d01f71fc2020-11-24T20:49:06ZengHindawi LimitedJournal of Nanomaterials1687-41101687-41292016-01-01201610.1155/2016/21279802127980A Facile Fabrication of Silver-Coated Copper Nanowires by Galvanic ReplacementXin He0Ruihui He1Qiuming Lan2Feng Duan3Jundong Xiao4Mingxia Song5Mei Zhang6Yeqing Chen7Yang Li8School of Applied Physics and Materials, Wuyi University, Jiangmen, Guangdong 529020, ChinaSchool of Applied Physics and Materials, Wuyi University, Jiangmen, Guangdong 529020, ChinaSchool of Applied Physics and Materials, Wuyi University, Jiangmen, Guangdong 529020, ChinaSchool of Applied Physics and Materials, Wuyi University, Jiangmen, Guangdong 529020, ChinaSchool of Applied Physics and Materials, Wuyi University, Jiangmen, Guangdong 529020, ChinaCollaborative Innovation Center of Atmospheric Environment and Equipment Technology (CICAEET), School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing, Jiangsu 201144, ChinaSchool of Applied Physics and Materials, Wuyi University, Jiangmen, Guangdong 529020, ChinaSchool of Applied Physics and Materials, Wuyi University, Jiangmen, Guangdong 529020, ChinaSchool of Applied Physics and Materials, Wuyi University, Jiangmen, Guangdong 529020, ChinaWe demonstrated a general strategy to fabricate silver-coated copper nanowires by a galvanic replacement, which is guided by the chemical principle that metal ions (silver ions) with a relatively high reduction potential can galvanically etch nanostructure made from a less metal (copper). Well-dispersed and high-yielded copper nanowires were initially synthesized and then introduced into silver-ammonia solution for the growth of silver nanocrystals on the nanowire surfaces under vigorous oscillation. The results of X-ray diffraction, scanning electron microscope, and transmission electron microscope revealed that the silver nanocrystals were uniformly distributed on the copper nanowire surfaces to form Cu-Ag heterostructures. The concentration of silver-ammonia solution and the time of replacement reaction determine the size and density of the silver nanocrystals. Our investigation might pave the way to the synthesis of other bimetallic nanostructures via a facile, fast, and economical route.http://dx.doi.org/10.1155/2016/2127980
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Xin He Ruihui He Qiuming Lan Feng Duan Jundong Xiao Mingxia Song Mei Zhang Yeqing Chen Yang Li
spellingShingle	Xin He Ruihui He Qiuming Lan Feng Duan Jundong Xiao Mingxia Song Mei Zhang Yeqing Chen Yang Li A Facile Fabrication of Silver-Coated Copper Nanowires by Galvanic Replacement Journal of Nanomaterials
author_facet	Xin He Ruihui He Qiuming Lan Feng Duan Jundong Xiao Mingxia Song Mei Zhang Yeqing Chen Yang Li
author_sort	Xin He
title	A Facile Fabrication of Silver-Coated Copper Nanowires by Galvanic Replacement
title_short	A Facile Fabrication of Silver-Coated Copper Nanowires by Galvanic Replacement
title_full	A Facile Fabrication of Silver-Coated Copper Nanowires by Galvanic Replacement
title_fullStr	A Facile Fabrication of Silver-Coated Copper Nanowires by Galvanic Replacement
title_full_unstemmed	A Facile Fabrication of Silver-Coated Copper Nanowires by Galvanic Replacement
title_sort	facile fabrication of silver-coated copper nanowires by galvanic replacement
publisher	Hindawi Limited
series	Journal of Nanomaterials
issn	1687-4110 1687-4129
publishDate	2016-01-01
description	We demonstrated a general strategy to fabricate silver-coated copper nanowires by a galvanic replacement, which is guided by the chemical principle that metal ions (silver ions) with a relatively high reduction potential can galvanically etch nanostructure made from a less metal (copper). Well-dispersed and high-yielded copper nanowires were initially synthesized and then introduced into silver-ammonia solution for the growth of silver nanocrystals on the nanowire surfaces under vigorous oscillation. The results of X-ray diffraction, scanning electron microscope, and transmission electron microscope revealed that the silver nanocrystals were uniformly distributed on the copper nanowire surfaces to form Cu-Ag heterostructures. The concentration of silver-ammonia solution and the time of replacement reaction determine the size and density of the silver nanocrystals. Our investigation might pave the way to the synthesis of other bimetallic nanostructures via a facile, fast, and economical route.
url	http://dx.doi.org/10.1155/2016/2127980
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A Facile Fabrication of Silver-Coated Copper Nanowires by Galvanic Replacement

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