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Hierarchically Ordered Porous CoOOH Thin-Film Electrodes for High-Performance Supercapacitors

Title
Hierarchically Ordered Porous CoOOH Thin-Film Electrodes for High-Performance Supercapacitors
Authors
Dhawale D.S.Kim S.Park D.-H.Choy J.-H.Al-deyab S.S.Ariga K.Kim E.Vinu A.
Ewha Authors
최진호
SCOPUS Author ID
최진호scopus
Issue Date
2015
Journal Title
ChemElectroChem
ISSN
2196-0216JCR Link
Citation
vol. 2, no. 4, pp. 497 - 502
Keywords
Chemical-bath depositionElectrochemistryPorous CoOOHSupercapacitorsThin films
Publisher
Wiley-VCH Verlag
Indexed
SCIE; SCOPUS WOS scopus
Abstract
We report a simple, cost-effective, and potentially scalable approach for the fabricating hierarchically porous CoOOH thin-film supercapacitors by combining a soft-templating and a chemical-bath deposition (CBD) method. The prepared electrode materials exhibit uniform morphology and highly ordered macropores, achieving a maximum specific capacitance of 387Fg-1 at a current density of 1mAcm-2, with a high energy of 19Whkg-1 and power density of 1713Wkg-1. In addition, the porous CoOOH electrodes show good stability with a cycling efficiency >90% after 5000 charge-discharge cycles, which could lead to the generation of novel energy-storage devices with better efficiencies. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
DOI
10.1002/celc.201402365
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
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