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In-situ fabrication of nanosheet arrays on copper foil as a new substrate for binder-free high-performance electrochemical supercapacitors
Mohammadi, R ; Sharif University of Technology
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- Type of Document: Article
- DOI: 10.1016/j.jelechem.2017.08.048
- Abstract:
- A facile hydrothermal method and subsequent electroactivation have been developed to fabricate three-dimensional (3D) CuO nanosheet arrays on the copper foil substrate, which can be used directly as a binder-free electrode for supercapacitor applications. Under optimum conditions, by using this facile method, a high capacitance of 125 mF/cm2 at a current density of 0.3 mA/cm2 is obtained. The prepared supercapacitor showed a good rate capability (46.4% capacitance retention, when the current density is increased to more than 30 times) and an excellent cyclability (more than 88% capacitance retention after 3000 cycles). © 2017 Elsevier B.V
- Keywords:
- Copper oxide ; Dissolution-precipitation ; Binders ; Bins ; Capacitance ; Copper ; Copper oxides ; Nanosheets ; Substrates ; Charge storage ; Dissolution precipitations ; Electrochemical supercapacitor ; Hydrothermal ; Nanaosheet arrays ; Supercapacitor
- Source: Journal of Electroanalytical Chemistry ; Volume 802 , 2017 , Pages 48-56 ; 15726657 (ISSN)
- URL: https://www.sciencedirect.com/science/article/pii/S1572665717306100