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Enhancement of the Ni-Co hydroxide response as energy storage material by electrochemically reduced graphene oxide

2017-04Journal article Restricted access
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dc.contributor.authorAdán-Más, Alberto
dc.contributor.authorDuarte, Raquel G.
dc.contributor.authorMorais Silva, Teresa
dc.contributor.authorGuerlou-Demourgues, Liliane
dc.contributor.authorMONTEMOR, MARIA
dc.date.accessioned2017-04-27T07:23:00Z
dc.date.available2017-04-27T07:23:00Z
dc.date.issued2017-04
dc.description.abstractNickel-Cobalt double hydroxide materials are combined with Electrochemically Reduced Graphene Oxide (Er-GO) on top of Stainless Steel collectors by means of a one-step pulsed electrodeposition technique. Results show that, when Er-GO is integrated into the Nickel-Cobalt hydroxide matrix, there is an improvement of the electrochemical performance of the material, which shows increased capacity, stability and rate capability. As seen by Scanning Electron Microscopy (SEM), X-Ray Photoelectron Spectroscopy (XPS), Grazing-Incidence X-Ray Diffraction (GIXD) and Raman Spectroscopy, there is an excellent integration between the materials that leads to the enhanced electrochemical response. Capacity values up to 96 mA h/g and a 62% capacity retention after 5000 cycles were achieved. Moreover, scan rates up to 2000 mV/s without loss in electrochemical response were possible proving its good rate capabilities. A detailed study of the cycling degradation phenomena was also done by means of electrochemical impedance spectroscopy (EIS). Thus, this novel electrodeposited material serves as an excellent material for energy storage applications.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationADÁN-MÁS, Alberto; [et al] – Enhancement of the Ni-Co hydroxide response as energy storage material by electrochemically reduced graphene oxide. Electrochimica Acta. ISSN 0013-4686. Vol. 240 (2017), pp. 323-340pt_PT
dc.identifier.doihttp://doi.org/10.1016/j.electacta.2017.04.070pt_PT
dc.identifier.issn0013-4686
dc.identifier.urihttp://hdl.handle.net/10400.21/6952
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionhttp://ac.els-cdn.com/S0013468617308289/1-s2.0-S0013468617308289-main.pdf?_tid=586b1762-2b18-11e7-af60-00000aacb362&acdnat=1493277102_1701b73b8624ae05d7fad28cc89fa8a8pt_PT
dc.subjectElectrochemically Reduced Graphene Oxidept_PT
dc.subjectNickel-Cobalt Hydroxidept_PT
dc.subjectEnergy Storage Electrodept_PT
dc.subjectElectrochemistrypt_PT
dc.subjectElectrochemical Impedance Spectroscopypt_PT
dc.titleEnhancement of the Ni-Co hydroxide response as energy storage material by electrochemically reduced graphene oxidept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage340pt_PT
oaire.citation.startPage323pt_PT
oaire.citation.titleElectrochimica Actapt_PT
oaire.citation.volume240
person.familyNameAdán-Más
person.familyNameMorais 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-id3C16-79AA-7E94
person.identifier.orcid0000-0003-0790-3467
person.identifier.orcid0000-0002-4889-8695
person.identifier.orcid0000-0002-0653-2572
person.identifier.orcid0000-0001-7835-6814
person.identifier.ridU-6142-2018
person.identifier.scopus-author-id7004347821
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication0531c01d-557b-4860-add9-e1e842e3bdd5
relation.isAuthorOfPublication778cc110-6d6b-43e0-931c-31616c73874d
relation.isAuthorOfPublication1ffc4576-6d19-4238-9bef-69b615f3fd06
relation.isAuthorOfPublication221aa2b5-1f6f-44c6-ae85-f227362e800b
relation.isAuthorOfPublication.latestForDiscovery0531c01d-557b-4860-add9-e1e842e3bdd5

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