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The effect of mixing on silver particle morphology in flow synthesis
Yang, Tao1,2; Segets, Doris3,4; Thajudeen, Thaseem3,4,5; Han, Yongsheng1,2; Peukert, Wolfgang3,4
刊名CHEMICAL ENGINEERING SCIENCE
2018-12-31
卷号192页码:254-263
关键词Anisotropic Silver Particles Plates Dendrites Analytical Centrifugation Mixing Time
ISSN号0009-2509
DOI10.1016/j.ces.2018.07.043
英文摘要

Silver particles, prepared in a T-mixer under different flow rates, were selected to study the influences of mixing on particle shape evolution. Mixing effects on particle growth were visualized by scanning electron microscopy (SEM) and analysed quantitatively by sedimentation coefficient distributions derived from analytical centrifugation (AC). The mixing time under different flow rates was determined by the Villermaux-Dushman method to quantify the mixing quality. Based on the finding of a mixing-induced shape transformation from plates to dendrites, an extended growth mechanism involving mixing effects was proposed. Slow mixing leads to a non-uniform distributed reactant mixture and low effective supersaturation. This causes preferential growth of high-energy facets resulting in plate-like particles with broad, multimodal sedimentation distributions. In contrast, fast mixing, corresponding to uniform reactant mixture and thus high effective supersaturation and nucleation rate, leads to dendritic products, and narrow but bimodal sedimentation distributions. (C) 2018 Elsevier Ltd. All rights reserved.

资助项目China Scholarship Council ; Deutsche Forschungsgemeinschaft (DFG) within the Cluster of Excellence
WOS关键词Transmission Electron-microscopy ; Iodate Reaction System ; Nanoparticle Precipitation ; Analytical Centrifugation ; Micromixing Efficiency ; Limited Aggregation ; Metal Nanocrystals ; T-mixer ; Diffusion ; Growth
WOS研究方向Engineering
语种英语
出版者PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号WOS:000443999000023
资助机构China Scholarship Council ; Deutsche Forschungsgemeinschaft (DFG) within the Cluster of Excellence
内容类型期刊论文
源URL[http://ir.ipe.ac.cn/handle/122111/25985]  
专题中国科学院过程工程研究所
通讯作者Han, Yongsheng; Peukert, Wolfgang
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
3.Friedrich Alexander Univ Erlangen Nurnberg FAU, Inst Particle Technol LFG, Cauerstr 4, D-91058 Erlangen, Germany
4.Friedrich Alexander Univ Erlangen Nurnberg FAU, Interdisciplinary Ctr Funct Particle Syst FPS, Haberstr 9a, D-91058 Erlangen, Germany
5.Indian Inst Technol Goa, Sch Mech Sci, Ponda 403401, India
推荐引用方式
GB/T 7714
Yang, Tao,Segets, Doris,Thajudeen, Thaseem,et al. The effect of mixing on silver particle morphology in flow synthesis[J]. CHEMICAL ENGINEERING SCIENCE,2018,192:254-263.
APA Yang, Tao,Segets, Doris,Thajudeen, Thaseem,Han, Yongsheng,&Peukert, Wolfgang.(2018).The effect of mixing on silver particle morphology in flow synthesis.CHEMICAL ENGINEERING SCIENCE,192,254-263.
MLA Yang, Tao,et al."The effect of mixing on silver particle morphology in flow synthesis".CHEMICAL ENGINEERING SCIENCE 192(2018):254-263.
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