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.
Original language | English |
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Pages (from-to) | 497-502 |
Number of pages | 6 |
Journal | ChemElectroChem |
Volume | 2 |
Issue number | 4 |
DOIs | |
Publication status | Published - 2015 Jan 8 |
Bibliographical note
Publisher Copyright:© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
All Science Journal Classification (ASJC) codes
- Catalysis
- Electrochemistry