Fast electrochemical reactions during the anodization of platinum electrodes in aqueous solutions : Detection of a reversible charge storage process at platinum-oxide-coated electr...

Autores
Bolzán, Agustín Eduardo; Arvia, Alejandro Jorge
Año de publicación
1992
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Fast electrochemical reactions at platinum and platinum-oxide-coated electrodes immersed in aqueous electrolytes can be observed by means of the triangularly modulated triangular potential sweep technique. The surface redox process commences at about 0.75 V in acid solution and is related to the initial oxygen-containing species reversibly electroadsorbed on platinum. Platinum coated with an oxide layer formed through a potentiodynamic routine presents a reversible charge storage process at about 1.6 V in acid solution. The corresponding reaction can be interpreted as a reversible redox couple involving Pt(II)-Pt(IV) and proton injection in the platinum oxide matrix. The charge contribution of the second redox system is smaller than the total oxide charge accumulated on the substrate. Both fast redox systems appear also in base solutions.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Materia
Ciencias Exactas
Química
Platinum
Platinum-oxide-coated electrodes
Electrochemical reactions
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/121076
Acceder
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repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Fast electrochemical reactions during the anodization of platinum electrodes in aqueous solutions : Detection of a reversible charge storage process at platinum-oxide-coated electrodesBolzán, Agustín EduardoArvia, Alejandro JorgeCiencias ExactasQuímicaPlatinumPlatinum-oxide-coated electrodesElectrochemical reactionsFast electrochemical reactions at platinum and platinum-oxide-coated electrodes immersed in aqueous electrolytes can be observed by means of the triangularly modulated triangular potential sweep technique. The surface redox process commences at about 0.75 V in acid solution and is related to the initial oxygen-containing species reversibly electroadsorbed on platinum. Platinum coated with an oxide layer formed through a potentiodynamic routine presents a reversible charge storage process at about 1.6 V in acid solution. The corresponding reaction can be interpreted as a reversible redox couple involving Pt(II)-Pt(IV) and proton injection in the platinum oxide matrix. The charge contribution of the second redox system is smaller than the total oxide charge accumulated on the substrate. Both fast redox systems appear also in base solutions.Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas1992info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf93-109http://sedici.unlp.edu.ar/handle/10915/121076enginfo:eu-repo/semantics/altIdentifier/issn/0022-0728info:eu-repo/semantics/altIdentifier/doi/10.1016/0022-0728(92)80478-Minfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-03T11:00:48Zoai:sedici.unlp.edu.ar:10915/121076Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 11:00:48.416SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Fast electrochemical reactions during the anodization of platinum electrodes in aqueous solutions : Detection of a reversible charge storage process at platinum-oxide-coated electrodes
title Fast electrochemical reactions during the anodization of platinum electrodes in aqueous solutions : Detection of a reversible charge storage process at platinum-oxide-coated electrodes
spellingShingle Fast electrochemical reactions during the anodization of platinum electrodes in aqueous solutions : Detection of a reversible charge storage process at platinum-oxide-coated electrodes
Bolzán, Agustín Eduardo
Ciencias Exactas
Química
Platinum
Platinum-oxide-coated electrodes
Electrochemical reactions
title_short Fast electrochemical reactions during the anodization of platinum electrodes in aqueous solutions : Detection of a reversible charge storage process at platinum-oxide-coated electrodes
title_full Fast electrochemical reactions during the anodization of platinum electrodes in aqueous solutions : Detection of a reversible charge storage process at platinum-oxide-coated electrodes
title_fullStr Fast electrochemical reactions during the anodization of platinum electrodes in aqueous solutions : Detection of a reversible charge storage process at platinum-oxide-coated electrodes
title_full_unstemmed Fast electrochemical reactions during the anodization of platinum electrodes in aqueous solutions : Detection of a reversible charge storage process at platinum-oxide-coated electrodes
title_sort Fast electrochemical reactions during the anodization of platinum electrodes in aqueous solutions : Detection of a reversible charge storage process at platinum-oxide-coated electrodes
dc.creator.none.fl_str_mv Bolzán, Agustín Eduardo
Arvia, Alejandro Jorge
author Bolzán, Agustín Eduardo
author_facet Bolzán, Agustín Eduardo
Arvia, Alejandro Jorge
author_role author
author2 Arvia, Alejandro Jorge
author2_role author
dc.subject.none.fl_str_mv Ciencias Exactas
Química
Platinum
Platinum-oxide-coated electrodes
Electrochemical reactions
topic Ciencias Exactas
Química
Platinum
Platinum-oxide-coated electrodes
Electrochemical reactions
dc.description.none.fl_txt_mv Fast electrochemical reactions at platinum and platinum-oxide-coated electrodes immersed in aqueous electrolytes can be observed by means of the triangularly modulated triangular potential sweep technique. The surface redox process commences at about 0.75 V in acid solution and is related to the initial oxygen-containing species reversibly electroadsorbed on platinum. Platinum coated with an oxide layer formed through a potentiodynamic routine presents a reversible charge storage process at about 1.6 V in acid solution. The corresponding reaction can be interpreted as a reversible redox couple involving Pt(II)-Pt(IV) and proton injection in the platinum oxide matrix. The charge contribution of the second redox system is smaller than the total oxide charge accumulated on the substrate. Both fast redox systems appear also in base solutions.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
description Fast electrochemical reactions at platinum and platinum-oxide-coated electrodes immersed in aqueous electrolytes can be observed by means of the triangularly modulated triangular potential sweep technique. The surface redox process commences at about 0.75 V in acid solution and is related to the initial oxygen-containing species reversibly electroadsorbed on platinum. Platinum coated with an oxide layer formed through a potentiodynamic routine presents a reversible charge storage process at about 1.6 V in acid solution. The corresponding reaction can be interpreted as a reversible redox couple involving Pt(II)-Pt(IV) and proton injection in the platinum oxide matrix. The charge contribution of the second redox system is smaller than the total oxide charge accumulated on the substrate. Both fast redox systems appear also in base solutions.
publishDate 1992
dc.date.none.fl_str_mv 1992
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/10915/121076
url http://sedici.unlp.edu.ar/handle/10915/121076
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/10.1016/0022-0728(92)80478-M
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
93-109
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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