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A Different View of Solvent Effects in Crystallization
Wang, Han1,2; Lin, Qiang1,2; Dou, Xiangyu1,2; Yang, Tao1,2; Han, Yongsheng1
Source PublicationCRYSTALS

Solvents are widely used in crystallization, but their effects on the shape development of crystals are under debate. Here, we report a view on how solvents play their role by considering the viscosity of solvents. We synthesize silver particles in a mixture of alcohol and water. The viscosity of the solvent is changed by varying the volume ratio of alcohol in water. With the variation of viscosity, diverse morphologies of silver particles are synthesized. Small cubic crystals are formed at low viscosity, while hierarchical flower-like particles are formed at high viscosity. Two alcohols are employed, namely ethanol and propanol. No matter which alcohol is employed, the results are similar. Due to the limitation of mass transfer at high viscosity, the particles synthesized in such solvent are smaller and stabilized by the solvent. When the solution containing these particles are dropped onto metal substrates, these tiny particles firstly aggregate, which is followed by classic crystallization, forming flower-like hierarchical structures. These findings show the importance of the viscosity of solvents in shaping particles, which is underestimated previously.

KeywordCrystallization Silver Particles Solvent Diffusion Nanotechnology
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
Indexed BySCI
WOS KeywordSeed-mediated Growth ; Facile Synthesis ; Silver Nanostructures ; Nanocrystal Growth ; Shape-control ; Diffusion ; Size ; Aggregation ; Crystals
WOS Research AreaCrystallography ; Materials Science
WOS SubjectCrystallography ; Materials Science, Multidisciplinary
Funding OrganizationNational Natural Science Foundation of China(U1462130 ; State Key Laboratory of Multiphase Complex Systems(MPCS-2014-D-05) ; 21406232)
WOS IDWOS:000419200500006
Citation statistics
Document Type期刊论文
Corresponding AuthorHan, Yongsheng
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
Wang, Han,Lin, Qiang,Dou, Xiangyu,et al. A Different View of Solvent Effects in Crystallization[J]. CRYSTALS,2017,7(12):357.
APA Wang, Han,Lin, Qiang,Dou, Xiangyu,Yang, Tao,&Han, Yongsheng.(2017).A Different View of Solvent Effects in Crystallization.CRYSTALS,7(12),357.
MLA Wang, Han,et al."A Different View of Solvent Effects in Crystallization".CRYSTALS 7.12(2017):357.
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