In-situ localized pH, pNa and dissolved O2 measurements during charge-discharge of mixed Ni–Co hydroxide electrodes
hal.structure.identifier | Centro de Quimica Estrutural [CQE] | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | ADÁN-MÁS, Alberto | |
hal.structure.identifier | Centro de Quimica Estrutural [CQE] | |
dc.contributor.author | TARYBA, Maryna | |
hal.structure.identifier | Instituto Superior de Engenharia de Lisboa [ISEL] | |
hal.structure.identifier | Centro de Quimica Estrutural [CQE] | |
dc.contributor.author | SILVA, Teresa | |
hal.structure.identifier | Réseau sur le stockage électrochimique de l'énergie [RS2E] | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | GUERLOU-DEMOURGUES, Liliane | |
hal.structure.identifier | Centro de Quimica Estrutural [CQE] | |
dc.contributor.author | MONTEMOR, Maria | |
dc.date.issued | 2020 | |
dc.identifier.issn | 0013-4651 | |
dc.description.abstractEn | This 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. | |
dc.language.iso | en | |
dc.publisher | Electrochemical Society | |
dc.title.en | In-situ localized pH, pNa and dissolved O2 measurements during charge-discharge of mixed Ni–Co hydroxide electrodes | |
dc.type | Article de revue | |
dc.identifier.doi | 10.1149/1945-7111/ab8924 | |
dc.subject.hal | Chimie/Autre | |
dc.subject.hal | Chimie/Matériaux | |
bordeaux.journal | Journal of The Electrochemical Society | |
bordeaux.page | 080511 | |
bordeaux.volume | 167 | |
bordeaux.issue | 8 | |
bordeaux.peerReviewed | oui | |
hal.identifier | hal-02639285 | |
hal.version | 1 | |
hal.popular | non | |
hal.audience | Internationale | |
hal.origin.link | https://hal.archives-ouvertes.fr//hal-02639285v1 | |
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