Ultra-fast rate capability of a symmetric supercapacitor with a hierarchical Co3O4 nanowire/nanoflower hybrid structure in non-aqueous electrolyte

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dc.contributor.authorPadmanathan, Narayanasamy
dc.contributor.authorSelladurai, Subramanian
dc.contributor.authorRazeeb, Kafil M.
dc.contributor.funderEuropean Commission
dc.date.accessioned2016-01-28T17:28:19Z
dc.date.available2016-01-28T17:28:19Z
dc.date.issued2015-01-16
dc.description.abstractA free standing Co3O4 nanowire/nanoflower hybrid structure on flexible carbon fibre cloth (CFC) was designed via a facile hydrothermal approach followed by thermal treatment in air. The Co3O4 hybrid structure on CFC showed interesting electrochemical performance in both alkaline and organic electrolytes when used as electrodes for symmetric supercapacitors. Compared to conventional alkaline electrolytes, the fabricated symmetric cell in organic electrolyte has delivered a high rate and cyclic performance. A supercapacitor made from this hierarchical hybrid architecture showed a maximum specific capacitance of 4.8 mF cm-2 at a constant density of 3 mA cm-2 in organic electrolyte. In terms of energy and power, the symmetric supercapacitor conveyed an energy density of 4.2 mW h cm-3 with a power density of 1260 mW cm-3. Also, the device exhibited reasonable tolerance for mechanical deformation under bended conditions demonstrating the flexibility of the materials. The impressive electrochemical activity is mainly attributed to their high surface area (60.3 m2 g-1) resulting from their nano/mesoporous structure; reasonable electrical conductivity resulted from binder-free and intimate metal oxide/substrate integration and superior flexibility of the carbon fibre cloth. Thereby, it was concluded that the direct growth of the Co3O4 nanostructure on CFC is a promising electrode for the advanced flexible energy storage devices regardless of the electrolyte.en
dc.description.sponsorshipEuropean Commission (FP7 project MANpower Contract Number: 604360)en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationPADMANATHAN, N., SELLADURAI, S. & RAZEEB, K. M. 2015. Ultra-fast rate capability of a symmetric supercapacitor with a hierarchical Co3O4 nanowire/nanoflower hybrid structure in non-aqueous electrolyte. RSC Advances, 5, 12700-12709. http://dx.doi.org/10.1039/C4RA13327Gen
dc.identifier.doi10.1039/C4RA13327G
dc.identifier.endpage12709en
dc.identifier.issn2046-2069
dc.identifier.issued17en
dc.identifier.journaltitleRSC Advancesen
dc.identifier.startpage12700en
dc.identifier.urihttps://hdl.handle.net/10468/2228
dc.identifier.volume5en
dc.language.isoenen
dc.publisherRoyal Society of Chemistryen
dc.rights© 2015, the Authors. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.en
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.subjectSolid state supercapacitorsen
dc.subjectCarbon-fibreen
dc.subjectHigh performance supercapacitoren
dc.subjectFlexibleen
dc.subjectElectrochemicalen
dc.subjectControlled growthen
dc.subjectStorage devicesen
dc.subjectNiO nanosheetsen
dc.subjectClothen
dc.subjectGrapheneen
dc.titleUltra-fast rate capability of a symmetric supercapacitor with a hierarchical Co3O4 nanowire/nanoflower hybrid structure in non-aqueous electrolyteen
dc.typeArticle (peer-reviewed)en
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