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Rational synthesis of silver nanowires at an electrode interface by diffusion limitation
Liu, Wei1,2; Wang, Kai1,3; Zhou, Yu1; Guan, Xiaoping1; Che, Ping2; Han, Yongsheng1
2019-03-07
Source PublicationCRYSTENGCOMM
ISSN1466-8033
Volume21Issue:9Pages:1466-1473
AbstractWe 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.
DOI10.1039/c9ce00100j
Language英语
WOS KeywordCHEMICAL DIFFUSION ; COMPOSITE FILMS ; NANOPARTICLES ; AGGREGATION ; DENDRITES ; GROWTH ; SENSOR
Funding ProjectNational 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 Research AreaChemistry ; Crystallography
WOS SubjectChemistry, Multidisciplinary ; Crystallography
Funding OrganizationNational 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
WOS IDWOS:000459740000011
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/28041
Collection中国科学院过程工程研究所
Corresponding AuthorHan, Yongsheng
Affiliation1.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
Recommended Citation
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.
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