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Synergistic effect in the heterostructure of ZnCo<inf>2</inf>O<inf>4</inf> and hydrogenated zinc oxide nanorods for high capacitive response

Deka Boruah, B and Maji, A and Misra, A (2017) Synergistic effect in the heterostructure of ZnCo<inf>2</inf>O<inf>4</inf> and hydrogenated zinc oxide nanorods for high capacitive response. Nanoscale, 9. pp. 9411-9420. ISSN 2040-3364

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Abstract

Herein, a novel heterostructure was fabricated by combining electrochemically and optically active materials to achieve a high capacitive response of 896 F g at 5 A g . A network of ZnCo O nanorods (NRs) was directly grown on a three-dimensional matrix of H:ZnO NRs (ZnCo O /H:ZnO NRs) that offered synergistic advantages by providing an optimum ion/charge transportation path, large electrochemically active surface area, and stable capacitive response during the electrolytic process. Furthermore, the fabricated solid-state asymmetric supercapacitor ZnCo O /H:ZnO NRs//activated carbon induced a large potential window of 1.5 V that offered excellent energy and power densities. In addition, optically active ZnCo O /H:ZnO NRs were also used for the conversion of optical energy over a broad wavelength range; thus, the as-fabricated asymmetric solid-state supercapacitor could easily provide the required power for the operation of a photodetector. Therefore, the unique heterostructure of ZnCo O /H:ZnO NRs not only presents excellent capacitive response but also demonstrates great potential for energy conversion. -1 -1 2 4 2 4 2 4 2 4 2 4

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div E > Production Processes
Depositing User: Cron Job
Date Deposited: 20 May 2019 20:04
Last Modified: 15 Apr 2021 05:35
DOI: 10.1039/c7nr01644a