Facile synthesis of Mesoporouscobalt Hexacyanoferrate Nanocubes for High-Performance Supercapacitors
- Resource Type
- article
- Authors
- Zhiyong Zhang; Jian-Gan Wang; Bingqing Wei
- Source
- Nanomaterials, Vol 7, Iss 8, p 228 (2017)
- Subject
- prussian blue
electrode material
mesostructure
supercapacitor
Chemistry
QD1-999
- Language
- English
- ISSN
- 2079-4991
Mesoporous cobalt hexacyanoferrate nanocubes (meso–CoHCF) were prepared for the first time through a facile sacrificial template method. The CoHCF mesostructures possess a high specific surface area of 548.5 m2·g−1 and a large amount of mesopores, which enable fast mass transport of electrolyte and abundant energy storage sites. When evaluated as supercapacitor materials, the meso–CoHCF materials exhibit a high specific capacitance of 285 F·g−1, good rate capability and long cycle life with capacitance retention of 92.9% after 3000 cycles in Na2SO4 aqueous electrolyte. The excellent electrochemical properties demonstrate the rational preparation of mesoporous prussian blue and its analogues for energy storage applications.