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Synergistic Effect in Heterostructure of ZnCo2O4 and Hydrogenated Zinc Oxide Nanorods for High Capacitive Response

Abstract

Novel heterostructure is fabricated by combining electrochemically and optically active materials for high supercapacitive response of 896 F/g at 5 A/g. Network of ZnCo2O4 nanorods (NRs) are directly grown on three dimensional matrix of H:ZnO NRs (ZnCo2O4/H:ZnO NRs) that offers synergistic advantages by providing an optimum ion/charge transportation path, large electrochemically active surface area and stable capacitive response during electrolytic process. Furthermore, the fabricated solid-state asymmetric supercapacitor, ZnCo2O4/H:ZnO NRs//activated carbon induces a large potential window of 1.5 V that offers excellent energy and power densities. In addition, optically active ZnCo2O4/H:ZnO NRs is also used for the conversion of optical energy in a broad wavelength range thus as-fabricated asymmetric solid-state supercapacitor could easily provide the required power for the operation of a photodetector. Therefore, unique heterostructure of ZnCo2O4/H:ZnO NRs not only presents excellent supercapacitive response but also demonstrates great potential for energy conversion.

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Publication details

The article was received on 07 Mar 2017, accepted on 09 Jun 2017 and first published on 12 Jun 2017


Article type: Paper
DOI: 10.1039/C7NR01644A
Citation: Nanoscale, 2017, Accepted Manuscript
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    Synergistic Effect in Heterostructure of ZnCo2O4 and Hydrogenated Zinc Oxide Nanorods for High Capacitive Response

    B. Deka Boruah, A. Maji and A. Misra, Nanoscale, 2017, Accepted Manuscript , DOI: 10.1039/C7NR01644A

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