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Hydrogen evolution on nanostructured Ni-Cu foams

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dc.contributor.authorCardoso, D. S. P.
dc.contributor.authorEugénio, S.
dc.contributor.authorSilva, Maria Teresa Oliveira de Moura e
dc.contributor.authorSantos, D. M. F.
dc.contributor.authorSequeira, C. A. C.
dc.contributor.authorMontemor, M. F.
dc.date.accessioned2016-04-20T10:38:06Z
dc.date.available2016-04-20T10:38:06Z
dc.date.issued2015
dc.description.abstractThree-dimensional (3D) nickel-copper (Ni-Cu) nanostructured foams were prepared by galvanostatic electrodeposition, on stainless steel substrates, using the dynamic hydrogen bubble template. These foams were tested as electrodes for the hydrogen evolution reaction (HER) in 8 M KOH solutions. Polarisation curves were obtained for the Ni-Cu foams and for a solid Ni electrode, in the 25-85 degrees C temperature range, and the main kinetic parameters were determined. It was observed that the 3D foams have higher catalytic activity than pure Ni. HER activation energies for the Ni-Cu foams were lower (34-36 kJ mol(-1)) than those calculated for the Ni electrode (62 kJ mol(-1)). The foams also presented high stability for HER, which makes them potentially attractive cathode materials for application in industrial alkaline electrolysers.pt_PT
dc.identifier.citationCARDOSO, D. S. P.; [et al.] - Hydrogen evolution on nanostructured Ni-Cu foams. RSC Advances. ISSN. 2046-2069. Vol. 5, N.º 54 (2015), pp. 43456-43461.pt_PT
dc.identifier.doi10.1039/c5ra06517hpt_PT
dc.identifier.issn2046-2069
dc.identifier.urihttp://hdl.handle.net/10400.21/6054
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherROYAL SOC CHEMISTRYpt_PT
dc.relationIF/01084/2014pt_PT
dc.relationMP1103pt_PT
dc.relationMP1006pt_PT
dc.relation.publisherversionhttp://pubs.rsc.org/en/Content/ArticleLanding/2015/RA/C5RA06517H#!divAbstractpt_PT
dc.subjectAlkaline water electrolysispt_PT
dc.subjectElectrochemical depositionpt_PT
dc.subjectNickel electrodept_PT
dc.subjectAlloyspt_PT
dc.subjectKineticspt_PT
dc.subjectCoatingspt_PT
dc.subjectCathodept_PT
dc.subjectMediapt_PT
dc.titleHydrogen evolution on nanostructured Ni-Cu foamspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PEst-OE%2FQUI%2FUI0100%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FSEN-ENR%2F121265%2F2010/PT
oaire.citation.endPage43461pt_PT
oaire.citation.issue54pt_PT
oaire.citation.startPage43456pt_PT
oaire.citation.volume5pt_PT
oaire.fundingStream3599-PPCDT
oaire.fundingStream3599-PPCDT
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isProjectOfPublication61da5932-f392-4692-bb6c-df647fd26901
relation.isProjectOfPublication97caaa7e-bca8-409a-8eb3-e705223ee68b
relation.isProjectOfPublication.latestForDiscovery61da5932-f392-4692-bb6c-df647fd26901

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