Supercapattery based on binder-free Co3 (PO4)2·8H2O multilayer nano/microflakes on nickel foam

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dc.contributor.authorShao, Han
dc.contributor.authorPadmanathan, Narayanasamy
dc.contributor.authorMcNulty, David
dc.contributor.authorO'Dwyer, Colm
dc.contributor.authorRazeeb, Kafil M.
dc.contributor.funderScience Foundation Irelanden
dc.contributor.funderSeventh Framework Programmeen
dc.date.accessioned2016-10-18T10:26:13Z
dc.date.available2016-10-18T10:26:13Z
dc.date.issued2016-09-30
dc.description.abstractA binder-free cobalt phosphate hydrate (Co3(PO4)2·8H2O) multilayer nano/microflake structure is synthesized on nickel foam (NF) via a facile hydrothermal process. Four different concentrations (2.5, 5, 10, and 20 mM) of Co2+ and PO4–3 were used to obtain different mass loading of cobalt phosphate on the nickel foam. The Co3(PO4)2·8H2O modified NF electrode (2.5 mM) shows a maximum specific capacity of 868.3 C g–1 (capacitance of 1578.7 F g–1) at a current density of 5 mA cm–2 and remains as high as 566.3 C g–1 (1029.5 F g–1) at 50 mA cm–2 in 1 M NaOH. A supercapattery assembled using Co3(PO4)2·8H2O/NF as the positive electrode and activated carbon/NF as the negative electrode delivers a gravimetric capacitance of 111.2 F g–1 (volumetric capacitance of 4.44 F cm–3). Furthermore, the device offers a high specific energy of 29.29 Wh kg–1 (energy density of 1.17 mWh cm–3) and a specific power of 4687 W kg–1 (power density of 187.5 mW cm–3).en
dc.description.sponsorshipEU FP7 project MANpower (Contract 604360); Science Foundation Ireland (Technology Innovation and Development Award 14/TIDA/2455).en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationShao, H., Padmanathan, N., McNulty, D., O'Dwyer, C. and Razeeb, K. M. (2016) 'Supercapattery based on binder-free Co3 (PO4) 2· 8H2O multilayer nano/microflakes on nickel foam', ACS Applied Materials and Interfaces, 8(42), pp. 28592-28598. doi:10.1021/acsami.6b08354en
dc.identifier.doi10.1021/acsami.6b08354
dc.identifier.endpage28598
dc.identifier.issn1944-8244
dc.identifier.issued42
dc.identifier.journaltitleACS Applied Materials and Interfacesen
dc.identifier.startpage28592
dc.identifier.urihttps://hdl.handle.net/10468/3191
dc.identifier.volume8
dc.language.isoenen
dc.publisherAmerican Chemical Society Publicationsen
dc.relation.projectinfo:eu-repo/grantAgreement/EC/FP7::SP1::NMP/604360/EU/MANpower - Energy Harvesting and Storage for Low Frequency Vibrations/MANPOWERen
dc.rights© 2016, American Chemical Society. This document is the unedited Author’s version of a Submitted Work that was subsequently accepted for publication in ACS Applied Materials and Interfaces, copyright © American Chemical Society, after peer review. To access the final edited and published work see http://pubs.acs.org/doi/abs/10.1021/acsami.6b08354en
dc.subjectCobalt phosphate hydrateen
dc.subjectElectrochemicalen
dc.subjectEnergy storage deviceen
dc.subjectNanomaterialen
dc.subjectSupercapacitoren
dc.subjectSupercapatteryen
dc.titleSupercapattery based on binder-free Co3 (PO4)2·8H2O multilayer nano/microflakes on nickel foamen
dc.typeArticle (peer-reviewed)en
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