The role of interface concentration gradient in the formation of silver dendritic particles

doi:10.1016/j.apt.2021.03.036

	The role of interface concentration gradient in the formation of silver dendritic particles
	Wang, Kai 1,2; Chen, Yongxiu 1,2; Dou, Xiangyu 1,2; Han, Yongsheng 1,2
刊名	ADVANCED POWDER TECHNOLOGY
	2021-05-01
卷号	32 期号:5 页码:1766-1773
关键词	Silver particles Dendritic structures Concentration gradient Diffusion Reaction
ISSN号	0921-8831
DOI	10.1016/j.apt.2021.03.036
英文摘要	Dendritic structures are widely present in nature, from river networks to snowflakes. There is a long-term interest in discovering their common formation mechanism, especially the driving force leading to the branching and the reason to keep symmetry. The inhibition of lithium dendrites in secondary batteries also calls for the deep understanding on the formation of dendritic structures. Here in this article, we report an investigation on the driving force of the formation of dendritic structures. Silver particles are synthesized by Galvanic replacement reaction (GRR) in which metal rods are immersed into the silver nitrate solution to reduce silver ions followed by silver particles formation on the surface of rods. The silver ions concentration profile near the rods is measured by Mach-Zehnder interferometer during the reaction. It is found that the formation of silver dendritic particles is accompanied by the interface concentration gradient. A regulation on the gradient leads to the change of silver morphology, experimentally confirming the dominant role of the interface concentration gradient in the formation of diverse structures. (C)& nbsp;2021 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder
资助项目	National Natural Science Foundation of China[91934302] ; National Natural Science Foundation of China[21978298] ; National Natural Science Foundation of China[U1862117] ; State Key Laboratory of Multiphase Complex Systems[MPCS-2019-D-12] ; MPCS Facility Upgradation Program
WOS关键词	MORPHOLOGICAL TRANSITIONS ; ELECTROLESS DEPOSITION ; REPLACEMENT REACTION ; CHEMICAL DIFFUSION ; ELECTRODEPOSITION ; NANOWIRES ; AG ; NANOSTRUCTURES ; COMPROMISE ; EVOLUTION
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000645088900004
资助机构	National Natural Science Foundation of China ; State Key Laboratory of Multiphase Complex Systems ; MPCS Facility Upgradation Program
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/48548]
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 Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang, Kai,Chen, Yongxiu,Dou, Xiangyu,et al. The role of interface concentration gradient in the formation of silver dendritic particles[J]. ADVANCED POWDER TECHNOLOGY,2021,32(5):1766-1773.
APA	Wang, Kai,Chen, Yongxiu,Dou, Xiangyu,&Han, Yongsheng.(2021).The role of interface concentration gradient in the formation of silver dendritic particles.ADVANCED POWDER TECHNOLOGY,32(5),1766-1773.
MLA	Wang, Kai,et al."The role of interface concentration gradient in the formation of silver dendritic particles".ADVANCED POWDER TECHNOLOGY 32.5(2021):1766-1773.