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Chen, Xin, Li, Hui, Xu, Jianzhou, Jaber, F., Musharavati, F., Zalezhad, Erfan, Bae, S., Hui, K. S. 
ORCID: https://orcid.org/0000-0001-7089-7587, Hui, K. N. and Liu, Junxing
(2020)
Synthesis and characterization of a NiCo2O4@NiCo2O4 hierarchical mesoporous nanoflake electrode for supercapacitor applications.
Nanomaterials, 10 (7).
pp. 1-13.
ISSN 2079-4991
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Abstract
In this study, we synthesized binder-free NiCo2O4@NiCo2O4 nanostructured materials on nickel foam (NF) by combined hydrothermal and cyclic voltammetry deposition techniques followed by calcination at 350 °C to attain high-performance supercapacitors. The hierarchical porous NiCo2O4@NiCo2O4 structure, facilitating faster mass transport, exhibited good cycling stability of 83.6% after 5000 cycles and outstanding specific capacitance of 1398.73 F g−1 at the current density of 2 A·g−1, signifying its potential for energy storage applications. A solid-state supercapacitor was fabricated with the NiCo2O4@NiCo2O4 on NF as the positive electrode and the active carbon (AC) was deposited on NF as the negative electrode, delivering a high energy density of 46.46 Wh kg−1 at the power density of 269.77 W kg−1. This outstanding performance was attributed to its layered morphological characteristics. This study explored the potential application of cyclic voltammetry depositions in preparing binder-free NiCo2O4@NiCo2O4 materials with more uniform architecture for energy storage, in contrast to the traditional galvanostatic deposition methods.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | electrodeposition,nanostructure,nico o,supercapacitors,chemical engineering(all),materials science(all) ,/dk/atira/pure/subjectarea/asjc/1500 |
| Faculty \ School: | Faculty of Science > School of Engineering (former - to 2024) |
| UEA Research Groups: | Faculty of Science > Research Groups > Emerging Technologies for Electric Vehicles (EV) Faculty of Science > Research Groups > Energy Materials Laboratory |
| Related URLs: | |
| Depositing User: | LivePure Connector |
| Date Deposited: | 07 Jul 2020 23:58 |
| Last Modified: | 25 Sep 2024 14:49 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/75953 |
| DOI: | 10.3390/nano10071292 |
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