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In-situ localized pH, pNa and dissolved O2 measurements during charge-discharge of mixed Ni–Co hydroxide electrodes

2020-04-23Journal article Open access
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dc.contributor.authorAdán-Más, Alberto
dc.contributor.authorTaryba, Maryna
dc.contributor.authorMoura E Silva, Teresa
dc.contributor.authorGuerlou-Demourgues, Liliane
dc.contributor.authorMontemor, M.F.
dc.date.accessioned2020-04-23T20:02:59Z
dc.date.available2020-04-23T20:02:59Z
dc.date.issued2020-04-23
dc.description.abstractThis work reports, for the first time, the use of ion-selective localized electrochemical techniques to elucidate the charge-discharge mechanism of nickel-cobalt hydroxide electrodes for electrochemical energy storage. The charge-discharge mechanism of electrodeposited nickel-cobalt hydroxide electrodes was studied in Na2SO4 0.05 M by localized in situ measurements of pH, pNa and dissolved O2 during cyclic voltammetry. Local pH and pNa distributions were recorded using micro-potentiometric sensors with liquid membrane, while dissolved O2 was monitored using a fiber-optic microsensor. These original results highlight how localized potentiometry can provide new insights to better understand the charge mechanism of metal (hydr)oxide electrodes by directly measuring the concentrations/activities of relevant species at the electrode-electrolyte interface during charge-discharge.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationADÁN-MÁS, Alberto; [et al] – In-situ localized pH, pNa and dissolved O2 measurements during charge-discharge of mixed Ni–Co hydroxide electrodes. Journal of The Electrochemical Society. ISSN 0013-4651. Vol. 167, N.º 8 (2020), pp. 1-9pt_PT
dc.identifier.doi10.1149/1945-7111/ab8924pt_PT
dc.identifier.issn0013-4651
dc.identifier.issn1945-7111
dc.identifier.urihttp://hdl.handle.net/10400.21/11513
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherIOP Publishingpt_PT
dc.relationM-ERA.NET/0004/2014 - FCTpt_PT
dc.relationUID/QUI/ 00100/2013 - FCTpt_PT
dc.relationUID/QUI/00100/2019 - FCTpt_PT
dc.relationUIDB/00100/2020 - FCTpt_PT
dc.subjectIon-selectivept_PT
dc.subjectLocalized electrochemical techniquespt_PT
dc.subjectCharge-discharge mechanismpt_PT
dc.subjectNickel-cobalt hydroxide electrodespt_PT
dc.subjectElectrochemical energy storagept_PT
dc.titleIn-situ localized pH, pNa and dissolved O2 measurements during charge-discharge of mixed Ni–Co hydroxide electrodespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage9pt_PT
oaire.citation.issue8
oaire.citation.startPage1pt_PT
oaire.citation.titleJournal of The Electrochemical Societypt_PT
oaire.citation.volume167pt_PT
person.familyNameAdán-Más
person.familyNameTaryba
person.familyNameMoura e Silva
person.familyNameGuerlou-Demourgues
person.familyNameMONTEMOR
person.givenNameAlberto
person.givenNameMaryna
person.givenNameTeresa
person.givenNameLiliane
person.givenNameFATIMA
person.identifier572597
person.identifier.ciencia-id9918-B3BD-5493
person.identifier.ciencia-idF71C-3392-8454
person.identifier.ciencia-id2D17-B93D-44BC
person.identifier.ciencia-id3C16-79AA-7E94
person.identifier.orcid0000-0003-0790-3467
person.identifier.orcid0000-0001-5668-2213
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.ridL-9448-2017
person.identifier.ridF-8778-2014
person.identifier.scopus-author-id35070567000
person.identifier.scopus-author-id6506601258
person.identifier.scopus-author-id7004347821
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication0531c01d-557b-4860-add9-e1e842e3bdd5
relation.isAuthorOfPublication0f50bade-bbf4-44a7-b995-6cbbdece559e
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relation.isAuthorOfPublication221aa2b5-1f6f-44c6-ae85-f227362e800b
relation.isAuthorOfPublication.latestForDiscovery0f50bade-bbf4-44a7-b995-6cbbdece559e

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