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Quantitatively Relating Diffusion and Reaction for Shaping Particles
Yang, Tao1,2; Han, Yongsheng1
2016-05-01
Source PublicationCRYSTAL GROWTH & DESIGN
ISSN1528-7483
Volume16Issue:5Pages:2850-2859
AbstractChemical 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.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1021/acs.cgd.6b00171
Indexed BySCI
Language英语
WOS KeywordELECTRON-TRANSFER KINETICS ; CYCLIC VOLTAMMETRY ; COLLOIDAL SOLUTION ; SOLUTION VISCOSITY ; RATE-CONSTANT ; GROWTH ; NUCLEATION ; COMPROMISE ; DENDRITES ; MECHANISM
WOS Research AreaChemistry ; Crystallography ; Materials Science
WOS SubjectChemistry, Multidisciplinary ; Crystallography ; Materials Science, Multidisciplinary
Funding OrganizationHundreds 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 IDWOS:000375520900049
Citation statistics
Cited Times:16[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/21059
Collection多相复杂系统国家重点实验室
Affiliation1.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
Recommended Citation
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.
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