Silver morphology indicating the evolution of concentration heterogeneity

doi:10.1016/j.cep.2018.10.016

	Silver morphology indicating the evolution of concentration heterogeneity
	Liu, T; Liu, W; Chen, YJ; Yang, T; Han, YS; Liu, Ting; Liu, Wei; Chen, Yongjun; Yang, Tao; Han, Yongsheng
刊名	CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
	2018
卷号	134 页码:38
关键词	Silver particle NANOPARTICLES Dendrite DIFFUSION Concentration heterogeneity GOLD Temporal evolution DEPOSITION Growth mode
ISSN号	0255-2701
DOI	10.1016/j.cep.2018.10.016
文献子类	Article
英文摘要	Heterogeneity is the main problem of scaleups. The common strategy to solve this problem is the enhancement of transport. Here we show an alterative by figuring out the role of heterogeneity and then controlling the heterogeneity for desired products. We employed a gel system to create a diffusion limitation and to discover how the local concentration heterogeneity influences the shape development of silver particles in an electrochemical synthesis process. An interesting phenomenon was observed that the shapes of silver particles were dependent on their location. Silver dendrites were synthesized around the electrode, while polycrystalline spheres were obtained at the forward growth front. The mixture of dendritic and spherical particles was observed between the electrode and the growth front. A temporal evolution of concentration heterogeneity was proposed to interpret the dependence of particle morphology with location. This interpretation was confirmed by regulating the concentration distribution in different gel systems and at different reaction rates. This paper showed that the concentration distribution plays a significant role in the shape development of particles, and controlling the local heterogeneity promises an alternative for the rational synthesis of materials.
WOS记录号	WOS:000453338400005
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/26701]
专题	中国科学院过程工程研究所
推荐引用方式 GB/T 7714	Liu, T,Liu, W,Chen, YJ,et al. Silver morphology indicating the evolution of concentration heterogeneity[J]. CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION,2018,134:38, 44.
APA	Liu, T.,Liu, W.,Chen, YJ.,Yang, T.,Han, YS.,...&Han, Yongsheng.(2018).Silver morphology indicating the evolution of concentration heterogeneity.CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION,134,38.
MLA	Liu, T,et al."Silver morphology indicating the evolution of concentration heterogeneity".CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION 134(2018):38.