NIMTE OpenIR  > 2015专题
Morphology-Dependent Electrochemical Performance of Zinc Hexacyanoferrate Cathode for Zinc-Ion Battery
Zhang, Leyuan; Chen, Liang; Zhou, Xufeng; Liu, Zhaoping
2015
Source PublicationSCIENTIFIC REPORTS
ISSN2045-2322
Volume5Pages:-
AbstractZinc hexacyanoferrate (ZnHCF) which is a dimorphic (cubic or rhombohedral) Prussian blue analogue and can be intercalated by both monovalent and divalent ions, is a promising cathode material for rechargeable aqueous metal-ion batteries. In this paper, a simple co-precipitation method is developed to tune the particle morphology of ZnHCF by adjusting the dropping speed at room temperature. Three polyhedral ZnHCF particles, with cubooctahedral, truncated octahedral or octahedral shapes, are obtained at room temperature. Structural transformation from cubic phase of as-prepared ZnHCF to rhombohedral phase is observed by further dehydration of the sample at 70 degrees C, whereas the dehydrated ZnHCF crystals still hold the identical polyhedral shape as that of the cubic phase particles. Then the influence of shape and facets on electrochemical performance is studied for polyhedral ZnHCF with rhombohedral structure (RZnHCF). RZnHCF sample with cubooctahedral shape possesses the best rate capability and cyclic stability comparing with RZnHCF particles having truncated octahedral or octahedral shapes. Furthermore, the structure of cuboctahedron RZnHCF particles during electrochemical cycling has been monitored with ex situ X-ray diffraction to demonstrate the reversible zinc-ion intercalation mechanism.
Document Type期刊论文
Identifierhttp://ir.nimte.ac.cn/handle/174433/12236
Collection2015专题
Recommended Citation
GB/T 7714
Zhang, Leyuan,Chen, Liang,Zhou, Xufeng,et al. Morphology-Dependent Electrochemical Performance of Zinc Hexacyanoferrate Cathode for Zinc-Ion Battery[J]. SCIENTIFIC REPORTS,2015,5:-.
APA Zhang, Leyuan,Chen, Liang,Zhou, Xufeng,&Liu, Zhaoping.(2015).Morphology-Dependent Electrochemical Performance of Zinc Hexacyanoferrate Cathode for Zinc-Ion Battery.SCIENTIFIC REPORTS,5,-.
MLA Zhang, Leyuan,et al."Morphology-Dependent Electrochemical Performance of Zinc Hexacyanoferrate Cathode for Zinc-Ion Battery".SCIENTIFIC REPORTS 5(2015):-.
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