Oriented aggregation of silver particles in gel solutions | |
Lin, Qiang1,2,3; Wang, Xue1,2; Li, Jinbing3; Han, Yongsheng1 | |
刊名 | COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS |
2018-10-20 | |
卷号 | 555页码:161-169 |
关键词 | Silver Crystallization Diffusion Aggregation Molecular Dynamics |
ISSN号 | 0927-7757 |
DOI | 10.1016/j.colsurfa.2018.06.075 |
英文摘要 | Here we report a mechanism investigation on the ordered aggregation of particles at a diffusion limitation. A gel solution is employed to create a diffusion limitation for the synthesis of silver particles. Diamond-shaped silver particles are largely generated in an agar gel solution. The time dependent characterization of samples indicates that the diamond-shaped silver particles are built up by the aggregation of primary nanocrystals. A molecular simulation is conducted to reveal this aggregation process. Under diffusion limitation these tiny crystals tend to aggregate by sharing the high energy facets of (100), while the low energy facets of (111) is largely exposed, which results in an oriented aggregation, forming diamond-shaped particles. This formation mechanism is confirmed by following experiments via conducting the synthesis in different gel systems at different gel addition. The results of this paper indicate that the diffusion of building blocks plays an important role in the structure development of aggregates, which was underestimated previously. |
资助项目 | National Natural Science Foundation of China[91534123] ; Sinopec ; Hundreds Talent Program from the Chinese Academy of Sciences ; State Key Laboratory of Multiphase Complex Systems[MPCS-2017-A-01] |
WOS关键词 | Enhanced Raman-spectroscopy ; Chemical Diffusion ; Growth-mechanism ; Crystal-growth ; Surface ; Nanostructures ; Nanoparticles ; Assemblies ; Attachment ; Compromise |
WOS研究方向 | Chemistry |
语种 | 英语 |
出版者 | ELSEVIER SCIENCE BV |
WOS记录号 | WOS:000443153100019 |
资助机构 | National Natural Science Foundation of China ; Sinopec ; Hundreds Talent Program from the Chinese Academy of Sciences ; State Key Laboratory of Multiphase Complex Systems |
内容类型 | 期刊论文 |
源URL | [http://ir.ipe.ac.cn/handle/122111/25815] |
专题 | 中国科学院过程工程研究所 |
通讯作者 | Han, Yongsheng |
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 3.SINOPEC, Beijing Res Inst Chem Ind, Yanshan Branch, Beijing 102500, Peoples R China |
推荐引用方式 GB/T 7714 | Lin, Qiang,Wang, Xue,Li, Jinbing,et al. Oriented aggregation of silver particles in gel solutions[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2018,555:161-169. |
APA | Lin, Qiang,Wang, Xue,Li, Jinbing,&Han, Yongsheng.(2018).Oriented aggregation of silver particles in gel solutions.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,555,161-169. |
MLA | Lin, Qiang,et al."Oriented aggregation of silver particles in gel solutions".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 555(2018):161-169. |
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