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.author Padmanathan, Narayanasamy
dc.contributor.author Selladurai, Subramanian
dc.contributor.author Razeeb, Kafil M.
dc.date.accessioned 2016-01-28T17:28:19Z
dc.date.available 2016-01-28T17:28:19Z
dc.date.issued 2015-01-16
dc.identifier.citation PADMANATHAN, 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/C4RA13327G en
dc.identifier.volume 5 en
dc.identifier.issued 17 en
dc.identifier.startpage 12700 en
dc.identifier.endpage 12709 en
dc.identifier.issn 2046-2069
dc.identifier.uri http://hdl.handle.net/10468/2228
dc.identifier.doi 10.1039/C4RA13327G
dc.description.abstract A 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.sponsorship European Commission (FP7 project MANpower Contract Number: 604360) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Royal Society of Chemistry en
dc.rights © 2015, the Authors. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. en
dc.rights.uri http://creativecommons.org/licenses/by/3.0/ en
dc.subject Solid state supercapacitors en
dc.subject Carbon-fibre en
dc.subject High performance supercapacitor en
dc.subject Flexible en
dc.subject Electrochemical en
dc.subject Controlled growth en
dc.subject Storage devices en
dc.subject NiO nanosheets en
dc.subject Cloth en
dc.subject Graphene en
dc.title Ultra-fast rate capability of a symmetric supercapacitor with a hierarchical Co3O4 nanowire/nanoflower hybrid structure in non-aqueous electrolyte en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Kafil M. Razeeb, Tyndall National Institute, University College Cork, Cork, Ireland. +353-21-490-4078 Email: kafil.mahmood@tyndall.ie en
dc.internal.availability Full text available en
dc.description.version Published Version en
dc.internal.rssid 288986323
dc.contributor.funder European Commission
dc.description.status Peer reviewed en
dc.identifier.journaltitle RSC Advances en


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© 2015, the Authors. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. Except where otherwise noted, this item's license is described as © 2015, the Authors. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
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