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Tailored 3D foams decorated with nanostructured manganese oxide for asymmetric electrochemical capacitors

2022-02-01Journal article Restricted access
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dc.contributor.authorSiwek, K. I.
dc.contributor.authorEugenio, S.
dc.contributor.authorAldama, I.
dc.contributor.authorRojo, J. M.
dc.contributor.authorAmarilla, J. M.
dc.contributor.authorDa Costa Ribeiro, Ana Paula
dc.contributor.authorMoura E Silva, Teresa
dc.contributor.authorMontemor, M.F.
dc.date.accessioned2022-03-10T14:17:48Z
dc.date.available2022-03-10T14:17:48Z
dc.date.issued2022-02-01
dc.description.abstractTailored 3D (Ni and NiCo) metallic foam architectures were produced by electrodeposition and decorated via electrochemical routes with manganese oxide (MnOx) to serve as positive electrodes for supercapacitors. For comparative purposes, an electrode made of commercial Ni foam was also prepared. The foam-based electrodes were paired with a carbon cloth electrode and used to assemble asymmetric electrochemical cells. The electrochemical response of these cells was studied by applying different electrochemical techniques. In addition, two different protocols (cycling and floating) were applied to assess cells durability and fade. Despite the significant differences in the decorated foams morphology and structure their electrochemical responses revealed similar trends. The electrodes made of tailored foams showed higher specific capacitance, better capacitance retention at high current load and enhanced cycling stability compared to the electrodes made of commercial foam. The asymmetric cells made with the tailored foams revealed higher (maximum) specific energy (11-14 Wh kg(-1)) and specific power (1.3-1.4 x 10(4 )W kg(-1)) compared to cells assembled with commercial foams (8.4 Wh kg(-1) and 6.3 x 10(3) W kg(-1)). The durability tests evidenced that corrosion of the NiCo electrodeposited foams and electrochemical dissolution of MnOx are possible causes of cells degradation.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSIWEK, K. I.; [et al] – Tailored 3D foams decorated with nanostructured manganese oxide for asymmetric electrochemical capacitors. Journal of the Electrochemical Society. ISSN 0013-4651. Vol. 169, N.º 2 (2022), pp. 1-10.pt_PT
dc.identifier.doi10.1149/1945-7111/ac4d66pt_PT
dc.identifier.eissn1945-7111
dc.identifier.issn0013-4651
dc.identifier.urihttp://hdl.handle.net/10400.21/14438
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElectrochemical Society Inc.pt_PT
dc.relationPTDC/QUI-ELT/28299/2017 - FCTpt_PT
dc.relationUIDB/00100/2020 - FCTpt_PT
dc.relationSFRH/BD/123963/2016 - FCTpt_PT
dc.relationLISBOA-01-0247-FEDER-046109 - Project Baterias 2030pt_PT
dc.relationM-ERA-NET/0004/2014-PCIN2015-024 - Spanish Governmentpt_PT
dc.relationPID2019-104717RB-I00 - Spanish Governmentpt_PT
dc.subjectTailored 3D foampt_PT
dc.subjectManganese oxide (MnOx)pt_PT
dc.subjectElectrochemical capacitorspt_PT
dc.titleTailored 3D foams decorated with nanostructured manganese oxide for asymmetric electrochemical capacitorspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage10pt_PT
oaire.citation.issue2pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleJournal of the Electrochemical Societypt_PT
oaire.citation.volume169pt_PT
person.familyNameda Costa Ribeiro
person.familyNameMoura e Silva
person.familyNameMONTEMOR
person.givenNameAna Paula
person.givenNameTeresa
person.givenNameFATIMA
person.identifier1336277
person.identifier572597
person.identifier.ciencia-idE115-5C31-30F4
person.identifier.ciencia-id2D17-B93D-44BC
person.identifier.ciencia-id3C16-79AA-7E94
person.identifier.orcid0000-0003-4323-4328
person.identifier.orcid0000-0001-8402-6600
person.identifier.orcid0000-0001-7835-6814
person.identifier.ridF-8341-2014
person.identifier.ridF-8778-2014
person.identifier.scopus-author-id22235818800
person.identifier.scopus-author-id6506601258
person.identifier.scopus-author-id7004347821
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationebe0b25e-d8b0-4c6a-ab27-91f199d36347
relation.isAuthorOfPublicationfe43fd19-4bc4-4486-a11f-534f08bc1212
relation.isAuthorOfPublication221aa2b5-1f6f-44c6-ae85-f227362e800b
relation.isAuthorOfPublication.latestForDiscovery221aa2b5-1f6f-44c6-ae85-f227362e800b

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