Dynamic ageing of an oxygen-containing monolayer at platinum and gold electrodes in aqueous acid solutions

Autores
Tacconi, Norma R. de; Zerbino, Jorge Omar; Folquer, M. E.; Arvia, Alejandro Jorge
Año de publicación
1977
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
It is already well established that oxygen-containing species electrochemically formed in the monolayer range on Pt and Au electrodes in acid electrolytes undergo ageing processes which are easily evidenced by a potential shift of the corresponding electroreduction current peak observed under a cathodic linear potential sweep. During the ageing process the oxygen containing surface species undergoes a change into another one involving a more stable configuration but without any detectable change of the oxygen/surface metal atomic ratio. The ageing process takes place simultaneously with the electrosorption of oxygen and its contribution can be reasonably controlled during the electro° desorption process as is the case, for instance, when the surface species is allowed to stay under open circuit for a certain time after its electrochemical formation.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Materia
Ciencias Exactas
Química
Platinum electrodes
Gold electrodes
Oxygen-containing species
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/119350
Acceder
id SEDICI_7b2374c7677abc287f83c60cd59f9562
oai_identifier_str oai:sedici.unlp.edu.ar:10915/119350
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Dynamic ageing of an oxygen-containing monolayer at platinum and gold electrodes in aqueous acid solutionsTacconi, Norma R. deZerbino, Jorge OmarFolquer, M. E.Arvia, Alejandro JorgeCiencias ExactasQuímicaPlatinum electrodesGold electrodesOxygen-containing speciesIt is already well established that oxygen-containing species electrochemically formed in the monolayer range on Pt and Au electrodes in acid electrolytes undergo ageing processes which are easily evidenced by a potential shift of the corresponding electroreduction current peak observed under a cathodic linear potential sweep. During the ageing process the oxygen containing surface species undergoes a change into another one involving a more stable configuration but without any detectable change of the oxygen/surface metal atomic ratio. The ageing process takes place simultaneously with the electrosorption of oxygen and its contribution can be reasonably controlled during the electro° desorption process as is the case, for instance, when the surface species is allowed to stay under open circuit for a certain time after its electrochemical formation.Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas1977info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf213-216http://sedici.unlp.edu.ar/handle/10915/119350enginfo:eu-repo/semantics/altIdentifier/issn/0022-0728info:eu-repo/semantics/altIdentifier/doi/10.1016/S0022-0728(77)80166-6info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T17:09:04Zoai:sedici.unlp.edu.ar:10915/119350Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 17:09:05.18SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Dynamic ageing of an oxygen-containing monolayer at platinum and gold electrodes in aqueous acid solutions
title Dynamic ageing of an oxygen-containing monolayer at platinum and gold electrodes in aqueous acid solutions
spellingShingle Dynamic ageing of an oxygen-containing monolayer at platinum and gold electrodes in aqueous acid solutions
Tacconi, Norma R. de
Ciencias Exactas
Química
Platinum electrodes
Gold electrodes
Oxygen-containing species
title_short Dynamic ageing of an oxygen-containing monolayer at platinum and gold electrodes in aqueous acid solutions
title_full Dynamic ageing of an oxygen-containing monolayer at platinum and gold electrodes in aqueous acid solutions
title_fullStr Dynamic ageing of an oxygen-containing monolayer at platinum and gold electrodes in aqueous acid solutions
title_full_unstemmed Dynamic ageing of an oxygen-containing monolayer at platinum and gold electrodes in aqueous acid solutions
title_sort Dynamic ageing of an oxygen-containing monolayer at platinum and gold electrodes in aqueous acid solutions
dc.creator.none.fl_str_mv Tacconi, Norma R. de
Zerbino, Jorge Omar
Folquer, M. E.
Arvia, Alejandro Jorge
author Tacconi, Norma R. de
author_facet Tacconi, Norma R. de
Zerbino, Jorge Omar
Folquer, M. E.
Arvia, Alejandro Jorge
author_role author
author2 Zerbino, Jorge Omar
Folquer, M. E.
Arvia, Alejandro Jorge
author2_role author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Química
Platinum electrodes
Gold electrodes
Oxygen-containing species
topic Ciencias Exactas
Química
Platinum electrodes
Gold electrodes
Oxygen-containing species
dc.description.none.fl_txt_mv It is already well established that oxygen-containing species electrochemically formed in the monolayer range on Pt and Au electrodes in acid electrolytes undergo ageing processes which are easily evidenced by a potential shift of the corresponding electroreduction current peak observed under a cathodic linear potential sweep. During the ageing process the oxygen containing surface species undergoes a change into another one involving a more stable configuration but without any detectable change of the oxygen/surface metal atomic ratio. The ageing process takes place simultaneously with the electrosorption of oxygen and its contribution can be reasonably controlled during the electro° desorption process as is the case, for instance, when the surface species is allowed to stay under open circuit for a certain time after its electrochemical formation.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
description It is already well established that oxygen-containing species electrochemically formed in the monolayer range on Pt and Au electrodes in acid electrolytes undergo ageing processes which are easily evidenced by a potential shift of the corresponding electroreduction current peak observed under a cathodic linear potential sweep. During the ageing process the oxygen containing surface species undergoes a change into another one involving a more stable configuration but without any detectable change of the oxygen/surface metal atomic ratio. The ageing process takes place simultaneously with the electrosorption of oxygen and its contribution can be reasonably controlled during the electro° desorption process as is the case, for instance, when the surface species is allowed to stay under open circuit for a certain time after its electrochemical formation.
publishDate 1977
dc.date.none.fl_str_mv 1977
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/119350
url http://sedici.unlp.edu.ar/handle/10915/119350
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0022-0728
info:eu-repo/semantics/altIdentifier/doi/10.1016/S0022-0728(77)80166-6
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
213-216
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 12.982451

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