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Wu, Shuxing, Hui, Kwan San 
ORCID: https://orcid.org/0000-0001-7089-7587, Hui, Kwun Nam, Yun, Je Moon and Kim, Kwang Ho
(2017)
Silver particle-loaded nickel oxide nanosheet arrays on nickel foam as advanced binder-free electrodes for aqueous asymmetric supercapacitors.
RSC Advances, 7 (66).
pp. 41771-41778.
ISSN 2046-2069
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Abstract
Conductive metal loading is an efficient approach for enhancing the electric conductivity of redox-active transition-metal oxide electrodes. In this study, Ag particle-loaded NiO/nickel foam (Ag-NiO/NF) composites were fabricated using a green chemistry method. The anchored Ag particles standing on the surface of NiO nanosheet arrays helped improve the electrical conductivity and were thus beneficial for supercapacitors (SCs). The as-developed Ag-NiO/NF electrode delivered a specific capacitance of 1254.9 F g−1 at the current density of 1 A g−1, which is higher than that of NiO/NF electrode (946.3 F g−1). Using such Ag-NiO/NF as a positive electrode, we further fabricated aqueous asymmetric SC devices with reduced graphene oxide as a negative electrode. Owing to the efficient electron transport and short ion diffusion paths in the designed electrode, the devices exhibited a high specific capacitance of 97.9 F g at 1 A g−1 with a high energy density of 26.7 W h kg−1 at a power density of 1017.1 W kg−1 and great cyclic stability.
| Item Type: | Article |
|---|---|
| Faculty \ School: | Faculty of Science > School of Mathematics (former - to 2024) |
| UEA Research Groups: | Faculty of Science > Research Groups > Energy Materials Laboratory |
| Related URLs: | |
| Depositing User: | Pure Connector |
| Date Deposited: | 14 Sep 2017 05:05 |
| Last Modified: | 25 Sep 2024 12:59 |
| URI: | https://ueaeprints.uea.ac.uk/id/eprint/64867 |
| DOI: | 10.1039/C7RA06252D |
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