Polycrystalline vanadium oxide nanorods: growth, structure and improved electrochemical response as a Li-Ion battery cathode material

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dc.contributor.author McNulty, David
dc.contributor.author Buckley, D. Noel
dc.contributor.author O'Dwyer, Colm
dc.date.accessioned 2018-05-11T14:32:03Z
dc.date.available 2018-05-11T14:32:03Z
dc.date.issued 2014-06-13
dc.identifier.citation McNulty, D., Buckley, D. N. and O’Dwyer, C. (2014) 'Polycrystalline Vanadium Oxide Nanorods: Growth, Structure and Improved Electrochemical Response as a Li-Ion Battery Cathode Material', Journal of The Electrochemical Society, 161(9), pp. A1321-A1329. en
dc.identifier.volume 161 en
dc.identifier.issued 9 en
dc.identifier.startpage A1321 en
dc.identifier.endpage A1329 en
dc.identifier.issn 0013-4651
dc.identifier.uri http://hdl.handle.net/10468/6091
dc.identifier.doi 10.1149/2.0601409jes
dc.description.abstract Thermally removing amine molecules that serve as chemical templates for vanadium oxide nanotubes is demonstrated to significantly improve the performance when tested as a cathode material in Li-ion battery cells. Capacity fading issues associated with blocked intercalation sites on the (010) faces of layered vanadium oxide that form the nanotubes are prevented. Thermal treatment of the nanotubes up to 600°C is shown to cause a specific conversion from nanotubes to polycrystalline nanorods and removal of the organic template. The conversion process was monitored by thermogravimetric analysis, X-ray diffraction, transmission electron microscopy and infra-red spectroscopy. In a potential window of 4.0–1.2 V drawing 30 μA (C/30), the nanorods show improved specific capacities of ∼280 mAh g−1 with a modest 6% capacity fade compared to ∼8 mAh g−1 with 62% capacity fade for the VONTs. The improvements in specific capacity and cycling performance are due to the successful removal of amine molecules and conversion to nanorods containing nanoscale crystals. The cathode material also demonstrated enhanced energy densities (∼700 W h kg−1) compared to composites of the same overall weight, without conductive carbon additives or polymeric binders. en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Electrochemical Society en
dc.relation.uri http://jes.ecsdl.org/content/161/9/A1321.full.pdf
dc.rights © The Author(s) 2014. Published by ECS. This is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives 4.0 License (CC BY-NC-ND, http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial reuse, distribution, and reproduction in any medium, provided the original work is not changed in any way and is properly cited. For permission for commercial reuse, please email: oa@electrochem.org. [DOI: 10.1149/2.0601409jes] All rights reserved. en
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/4.0/ en
dc.subject Cathodes en
dc.subject Lithium en
dc.subject Lithium batteries en
dc.subject Nanorods en
dc.subject Nanotubes en
dc.subject Oxides en
dc.subject Thermogravimetric analysis en
dc.subject Transmission electron microscopy X ray diffraction en
dc.title Polycrystalline vanadium oxide nanorods: growth, structure and improved electrochemical response as a Li-Ion battery cathode material en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Colm O'Dwyer, Chemistry, University College Cork, Cork, Ireland. +353-21-490-3000 Email: c.odwyer@ucc.ie en
dc.internal.availability Full text available en
dc.date.updated 2018-05-03T10:40:26Z
dc.description.version Published Version en
dc.internal.rssid 259136963
dc.description.status Peer reviewed en
dc.identifier.journaltitle Journal of the Electrochemical Society en
dc.internal.copyrightchecked Yes en
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress c.odwyer@ucc.ie en


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© The Author(s) 2014. Published by ECS. This is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives 4.0 License (CC BY-NC-ND, http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial reuse, distribution, and reproduction in any medium, provided the original work is not changed in any way and is properly cited. For permission for commercial reuse, please email: oa@electrochem.org. [DOI: 10.1149/2.0601409jes] All rights reserved. Except where otherwise noted, this item's license is described as © The Author(s) 2014. Published by ECS. This is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives 4.0 License (CC BY-NC-ND, http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial reuse, distribution, and reproduction in any medium, provided the original work is not changed in any way and is properly cited. For permission for commercial reuse, please email: oa@electrochem.org. [DOI: 10.1149/2.0601409jes] All rights reserved.
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