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Quantitatively Relating Diffusion and Reaction for Shaping Particles
Yang, Tao1,2; Han, Yongsheng1
2016-05-01
发表期刊CRYSTAL GROWTH & DESIGN
ISSN1528-7483
卷号16期号:5页码:2850-2859
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.
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1021/acs.cgd.6b00171
收录类别SCI
语种英语
关键词[WOS]ELECTRON-TRANSFER KINETICS ; CYCLIC VOLTAMMETRY ; COLLOIDAL SOLUTION ; SOLUTION VISCOSITY ; RATE-CONSTANT ; GROWTH ; NUCLEATION ; COMPROMISE ; DENDRITES ; MECHANISM
WOS研究方向Chemistry ; Crystallography ; Materials Science
WOS类目Chemistry, Multidisciplinary ; Crystallography ; Materials Science, Multidisciplinary
项目资助者Hundreds Talent Program from the Chinese Academy of Sciences ; State Key Laboratory of Multiphase Complex Systems(MPCS-2014-D-05) ; National Natural Science Foundation of China(U1462130 ; Alexander von Humboldt foundation ; 91534123)
WOS记录号WOS:000375520900049
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被引频次:10[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/21059
专题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
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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.
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