Quantitatively Relating Diffusion and Reaction for Shaping Particles

CORC > 过程工程研究所 > 中国科学院过程工程研究所 > 多相复杂系统国家重点实验室

	Quantitatively Relating Diffusion and Reaction for Shaping Particles
	Yang, Tao 1,2; Han, Yongsheng 1
刊名	CRYSTAL GROWTH & DESIGN
	2016-05-01
卷号	16 期号:5 页码:2850-2859
ISSN号	1528-7483
英文摘要	Chemical diffusion and reaction rates are two general kinetic factors involved in the formation of materials. They play an important role in the structure development of materials. In most cases, chemical diffusion and reaction are coupled each other, which makes it difficult to differentiate their effects in shaping materials. Here we propose to quantify diffusion and reaction by the Damkohler number (Da) and to elucidate their roles in shaping particles. Silver particles are synthesized by electrodeposition approach at different reaction and diffusion conditions. Both diffusion efficiency and reaction rate constants are quantified, and the Damkohler number is calculated. If chemical diffusion or reaction is the rate-determining step in the formation of materials, simple structures, such as polyhedrons and irregular particles, are usually formed. When the interplay of diffusion and reaction dominates the structure development, complex structures, such as dendrites, are generated. The formation of each structure is closely related to Da values. On the basis of this finding, three growth modes of particles are put forward and evaluated by the following studies.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Chemistry, Multidisciplinary ; Crystallography ; Materials Science, Multidisciplinary
研究领域[WOS]	Chemistry ; Crystallography ; Materials Science
关键词[WOS]	ELECTRON-TRANSFER KINETICS ; CYCLIC VOLTAMMETRY ; COLLOIDAL SOLUTION ; SOLUTION VISCOSITY ; RATE-CONSTANT ; GROWTH ; NUCLEATION ; COMPROMISE ; DENDRITES ; MECHANISM
收录类别	SCI
语种	英语
WOS记录号	WOS:000375520900049
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/21059]
专题	过程工程研究所_多相复杂系统国家重点实验室
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, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Yang, Tao,Han, Yongsheng. Quantitatively Relating Diffusion and Reaction for Shaping Particles[J]. CRYSTAL GROWTH & DESIGN,2016,16(5):2850-2859.
APA	Yang, Tao,&Han, Yongsheng.(2016).Quantitatively Relating Diffusion and Reaction for Shaping Particles.CRYSTAL GROWTH & DESIGN,16(5),2850-2859.
MLA	Yang, Tao,et al."Quantitatively Relating Diffusion and Reaction for Shaping Particles".CRYSTAL GROWTH & DESIGN 16.5(2016):2850-2859.