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Nickel-cobalt oxide modified with reduced graphene oxide: Performance and degradation for energy storage applications

2019-04-15Journal article Restricted access
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dc.contributor.authorAdan-Mas, Alberto
dc.contributor.authorMoura E Silva, Teresa
dc.contributor.authorGuerlou-Demourgues, Liliane
dc.contributor.authorBourgeois, L.
dc.contributor.authorMONTEMOR, FATIMA
dc.date.accessioned2019-05-02T10:13:29Z
dc.date.available2019-05-02T10:13:29Z
dc.date.issued2019-04-15
dc.description.abstractNickel-cobalt oxide is synthesized in combination with electrochemically reduced graphene oxide (Er-GO) by one-step electrodeposition on stainless steel followed by thermal treatment. The presence of reduced graphene oxide leads to enhanced electrochemical response, with a capacity increase from 113 mA h g(-1) to 180 mA h g(-1), and to increased faradaic efficiency and rate capability. Compared to Ni-Co oxide, the addition of reduced graphene oxide increases capacity retention from 58% to 83% after 5000 cycles. The material fade during cycling is studied by means of electrochemical impedance spectroscopy, electron diffraction spectroscopy and scanning electron microscopy. As a result, different degradation mechanisms are identified as source of the capacity decay, such as microstructural cracking, phase transformation and parasitic reactions.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationADAN-MAS, A.; [et al] – Nickel-cobalt oxide modified with reduced graphene oxide: Performance and degradation for energy storage applications. Journal of Power Sources. ISSN 0378-7753. Vol. 419 (2019), pp. 12-26pt_PT
dc.identifier.doi10.1016/j.jpowsour.2019.02.055pt_PT
dc.identifier.issn0378-7753
dc.identifier.issn1873-2755
dc.identifier.urihttp://hdl.handle.net/10400.21/9914
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationM-ERA-NET/0004/2014 - FCTpt_PT
dc.relationPTDC/QUI-ELT/28299/2017 - FCTpt_PT
dc.relation.publisherversionhttps://reader.elsevier.com/reader/sd/pii/S0378775319301806?token=0509499266160ABD51E0DB4E8B875FBFA1958F4F46BF339D40D97E7FEAF663106BD6999975097EAC4E4CBA7F441C482Bpt_PT
dc.subjectElectrochemically reduced graphene oxidept_PT
dc.subjectNickel-cobalt oxidept_PT
dc.subjectEnergy storagept_PT
dc.subjectElectrode degradationpt_PT
dc.subjectElectrochemical impedance spectroscopypt_PT
dc.titleNickel-cobalt oxide modified with reduced graphene oxide: Performance and degradation for energy storage applicationspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage26pt_PT
oaire.citation.startPage12pt_PT
oaire.citation.titleJournal of Power Sourcespt_PT
oaire.citation.volume419pt_PT
person.familyNameAdán-Más
person.familyNameMoura e Silva
person.familyNameGuerlou-Demourgues
person.familyNameMONTEMOR
person.givenNameAlberto
person.givenNameTeresa
person.givenNameLiliane
person.givenNameFATIMA
person.identifier572597
person.identifier.ciencia-id9918-B3BD-5493
person.identifier.ciencia-id2D17-B93D-44BC
person.identifier.ciencia-id3C16-79AA-7E94
person.identifier.orcid0000-0003-0790-3467
person.identifier.orcid0000-0001-8402-6600
person.identifier.orcid0000-0002-0653-2572
person.identifier.orcid0000-0001-7835-6814
person.identifier.ridU-6142-2018
person.identifier.ridF-8778-2014
person.identifier.scopus-author-id6506601258
person.identifier.scopus-author-id7004347821
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication0531c01d-557b-4860-add9-e1e842e3bdd5
relation.isAuthorOfPublicationfe43fd19-4bc4-4486-a11f-534f08bc1212
relation.isAuthorOfPublication1ffc4576-6d19-4238-9bef-69b615f3fd06
relation.isAuthorOfPublication221aa2b5-1f6f-44c6-ae85-f227362e800b
relation.isAuthorOfPublication.latestForDiscovery0531c01d-557b-4860-add9-e1e842e3bdd5

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