Rational synthesis of silver nanowires at an electrode interface by diffusion limitation

doi:10.1039/c9ce00100j

	Rational synthesis of silver nanowires at an electrode interface by diffusion limitation
	Liu, Wei 1,2; Wang, Kai 1,3; Zhou, Yu 1; Guan, Xiaoping 1; Che, Ping 2; Han, Yongsheng 1
刊名	CRYSTENGCOMM
	2019-03-07
卷号	21 期号:9 页码:1466-1473
ISSN号	1466-8033
DOI	10.1039/c9ce00100j
英文摘要	We report an approach to synthesize silver nanowires by diffusion limitation. Silver particles are synthesized by electrochemical reaction in mixtures of silver nitrate solution and glycerol. Without glycerol, the main product is silver dendrites. With the addition of glycerol, silver nanowires are instead produced in abundance. The addition of glycerol increases the viscosity of the solvent, which restricts the diffusion of silver ions. Under conditions of diffusion limitation, a rapid electrochemical reaction leads to the formation of a chemical concentration gradient at the growth front of the nuclei, which results in the formation of silver dendritic structures. The increase of solvent viscosity attenuates the concentration gradient, which limits secondary nucleation on the sides of the silver rods, leading to the formation of 1D silver nanowires instead of dendrites. An increase of silver salt concentration sharpens the concentration gradient, which leads to the formation of dendritic structures again, confirming the dominant role of the interface chemical distribution in the structural evolution of the product materials. The silver nanowires synthesized are used to fabricate a conductive film by vacuum filtration followed by fixing and welding processes. The film shows high conductivity and excellent flexibility.
资助项目	National Key R&D Program of China[2017YFE0106500] ; National Natural Science Foundation of China[91534123] ; National Natural Science Foundation of China[91834303] ; National Natural Science Foundation of China[U1862117] ; Hundreds Talent Program from the Chinese Academy of Sciences ; State Key Laboratory of Multiphase Complex Systems[MPCS-2017-A-01]
WOS关键词	CHEMICAL DIFFUSION ; COMPOSITE FILMS ; NANOPARTICLES ; AGGREGATION ; DENDRITES ; GROWTH ; SENSOR
WOS研究方向	Chemistry ; Crystallography
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000459740000011
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China ; Hundreds Talent Program from the Chinese Academy of Sciences ; State Key Laboratory of Multiphase Complex Systems
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/28040]
专题	中国科学院过程工程研究所
通讯作者	Han, Yongsheng
作者单位	1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Sci & Technol Beijing, Sch Chem & Biol Engn, Beijing 100083, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Liu, Wei,Wang, Kai,Zhou, Yu,et al. Rational synthesis of silver nanowires at an electrode interface by diffusion limitation[J]. CRYSTENGCOMM,2019,21(9):1466-1473.
APA	Liu, Wei,Wang, Kai,Zhou, Yu,Guan, Xiaoping,Che, Ping,&Han, Yongsheng.(2019).Rational synthesis of silver nanowires at an electrode interface by diffusion limitation.CRYSTENGCOMM,21(9),1466-1473.
MLA	Liu, Wei,et al."Rational synthesis of silver nanowires at an electrode interface by diffusion limitation".CRYSTENGCOMM 21.9(2019):1466-1473.