The active surface area increase of rhodium electrodes through electroreduction of oxide layers produced by fast periodic potentials

Autores
Chialvo, Abel Cesar; Triaca, Walter Enrique; Arvia, Alejandro Jorge
Año de publicación
1987
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Fast periodic potentials applied to polycrystalline rhodium electrodes in acid and base electrolytes can cause, under certain conditions, the growth of hydrous oxide layers which after their electroreduction yield reproducible electrode surfaces with a large increase in the active surface area. These processes were investigated at 30° C by changing systematically the parameters of the perturbing potential including potentiostatic steps. The most suitable conditions for growing oxide layers capable of producing an increase in the rhodium electrode active surface area after their electroreduction correspond to a square wave perturbing potential at 1.8 kHz and a potential window between −0.025 and 2.0 V (vs. RHE). The processes related to the formation of anodic oxide layers under different experimental conditions are discussed.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Materia
Ciencias Exactas
Química
polycrystalline rhodium electrodes
oxide layers
electroreduction
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:10915/127462
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/127462
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling The active surface area increase of rhodium electrodes through electroreduction of oxide layers produced by fast periodic potentialsChialvo, Abel CesarTriaca, Walter EnriqueArvia, Alejandro JorgeCiencias ExactasQuímicapolycrystalline rhodium electrodesoxide layerselectroreductionFast periodic potentials applied to polycrystalline rhodium electrodes in acid and base electrolytes can cause, under certain conditions, the growth of hydrous oxide layers which after their electroreduction yield reproducible electrode surfaces with a large increase in the active surface area. These processes were investigated at 30° C by changing systematically the parameters of the perturbing potential including potentiostatic steps. The most suitable conditions for growing oxide layers capable of producing an increase in the rhodium electrode active surface area after their electroreduction correspond to a square wave perturbing potential at 1.8 kHz and a potential window between −0.025 and 2.0 V (vs. RHE). The processes related to the formation of anodic oxide layers under different experimental conditions are discussed.Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas1987info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf237-250http://sedici.unlp.edu.ar/handle/10915/127462enginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/0022072887852361?via%3Dihubinfo:eu-repo/semantics/altIdentifier/issn/0022-0728info:eu-repo/semantics/altIdentifier/doi/10.1016/0022-0728(87)85236-1info: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:UNLP2025-09-03T11:02:53Zoai:sedici.unlp.edu.ar:10915/127462Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 11:02:53.694SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv The active surface area increase of rhodium electrodes through electroreduction of oxide layers produced by fast periodic potentials
title The active surface area increase of rhodium electrodes through electroreduction of oxide layers produced by fast periodic potentials
spellingShingle The active surface area increase of rhodium electrodes through electroreduction of oxide layers produced by fast periodic potentials
Chialvo, Abel Cesar
Ciencias Exactas
Química
polycrystalline rhodium electrodes
oxide layers
electroreduction
title_short The active surface area increase of rhodium electrodes through electroreduction of oxide layers produced by fast periodic potentials
title_full The active surface area increase of rhodium electrodes through electroreduction of oxide layers produced by fast periodic potentials
title_fullStr The active surface area increase of rhodium electrodes through electroreduction of oxide layers produced by fast periodic potentials
title_full_unstemmed The active surface area increase of rhodium electrodes through electroreduction of oxide layers produced by fast periodic potentials
title_sort The active surface area increase of rhodium electrodes through electroreduction of oxide layers produced by fast periodic potentials
dc.creator.none.fl_str_mv Chialvo, Abel Cesar
Triaca, Walter Enrique
Arvia, Alejandro Jorge
author Chialvo, Abel Cesar
author_facet Chialvo, Abel Cesar
Triaca, Walter Enrique
Arvia, Alejandro Jorge
author_role author
author2 Triaca, Walter Enrique
Arvia, Alejandro Jorge
author2_role author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Química
polycrystalline rhodium electrodes
oxide layers
electroreduction
topic Ciencias Exactas
Química
polycrystalline rhodium electrodes
oxide layers
electroreduction
dc.description.none.fl_txt_mv Fast periodic potentials applied to polycrystalline rhodium electrodes in acid and base electrolytes can cause, under certain conditions, the growth of hydrous oxide layers which after their electroreduction yield reproducible electrode surfaces with a large increase in the active surface area. These processes were investigated at 30° C by changing systematically the parameters of the perturbing potential including potentiostatic steps. The most suitable conditions for growing oxide layers capable of producing an increase in the rhodium electrode active surface area after their electroreduction correspond to a square wave perturbing potential at 1.8 kHz and a potential window between −0.025 and 2.0 V (vs. RHE). The processes related to the formation of anodic oxide layers under different experimental conditions are discussed.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
description Fast periodic potentials applied to polycrystalline rhodium electrodes in acid and base electrolytes can cause, under certain conditions, the growth of hydrous oxide layers which after their electroreduction yield reproducible electrode surfaces with a large increase in the active surface area. These processes were investigated at 30° C by changing systematically the parameters of the perturbing potential including potentiostatic steps. The most suitable conditions for growing oxide layers capable of producing an increase in the rhodium electrode active surface area after their electroreduction correspond to a square wave perturbing potential at 1.8 kHz and a potential window between −0.025 and 2.0 V (vs. RHE). The processes related to the formation of anodic oxide layers under different experimental conditions are discussed.
publishDate 1987
dc.date.none.fl_str_mv 1987
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/10915/127462
url http://sedici.unlp.edu.ar/handle/10915/127462
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/0022072887852361?via%3Dihub
info:eu-repo/semantics/altIdentifier/issn/0022-0728
info:eu-repo/semantics/altIdentifier/doi/10.1016/0022-0728(87)85236-1
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
237-250
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 13.13397

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