Potentiodynamic characteristics of ruthenized platinum electrodes in sulphuric acid solutions

Autores
Lezna, Reynaldo Oscar; Tacconi, Norma R. de; Arvia, Alejandro Jorge
Año de publicación
1983
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The potentiodynamic response of ruthenized platinum electrodes in 0.5 M and 12 M H2SO4 at 25°C is investigated. The E/I profiles depend on the electrode history and involve sintering-type effects. In 12 M H2SO4 they can be analysed in more detail because the separation of the H-adatom and O-electroadsorption potential ranges is greater than in 0.5 M H2SO4. Thus, four different stages related to the oxide layer are distinguished. The interpretation of the corresponding overall processes is given in terms of the equilibrium potentials of the Ru/H2O system and the reversibility characteristics of the different stages derived from the various potential/time perturbation programs are discussed through reaction patterns previously considered for these reactions on other noble metals.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Materia
Ciencias Exactas
Química
ruthenized platinum electrodes
potentiodynamic response
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:10915/125759
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/125759
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Potentiodynamic characteristics of ruthenized platinum electrodes in sulphuric acid solutionsLezna, Reynaldo OscarTacconi, Norma R. deArvia, Alejandro JorgeCiencias ExactasQuímicaruthenized platinum electrodespotentiodynamic responseThe potentiodynamic response of ruthenized platinum electrodes in 0.5 M and 12 M H<sub>2</sub>SO<sub>4</sub> at 25°C is investigated. The E/I profiles depend on the electrode history and involve sintering-type effects. In 12 M H<sub>2</sub>SO<sub>4</sub> they can be analysed in more detail because the separation of the H-adatom and O-electroadsorption potential ranges is greater than in 0.5 M H<sub>2</sub>SO<sub>4</sub>. Thus, four different stages related to the oxide layer are distinguished. The interpretation of the corresponding overall processes is given in terms of the equilibrium potentials of the Ru/H<sub>2</sub>O system and the reversibility characteristics of the different stages derived from the various potential/time perturbation programs are discussed through reaction patterns previously considered for these reactions on other noble metals.Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas1983-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf193-207http://sedici.unlp.edu.ar/handle/10915/125759enginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0022072883804331info:eu-repo/semantics/altIdentifier/issn/0022-0728info:eu-repo/semantics/altIdentifier/doi/10.1016/S0022-0728(83)80433-1info: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:UNLP2025-10-15T11:22:15Zoai:sedici.unlp.edu.ar:10915/125759Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:22:16.143SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Potentiodynamic characteristics of ruthenized platinum electrodes in sulphuric acid solutions
title Potentiodynamic characteristics of ruthenized platinum electrodes in sulphuric acid solutions
spellingShingle Potentiodynamic characteristics of ruthenized platinum electrodes in sulphuric acid solutions
Lezna, Reynaldo Oscar
Ciencias Exactas
Química
ruthenized platinum electrodes
potentiodynamic response
title_short Potentiodynamic characteristics of ruthenized platinum electrodes in sulphuric acid solutions
title_full Potentiodynamic characteristics of ruthenized platinum electrodes in sulphuric acid solutions
title_fullStr Potentiodynamic characteristics of ruthenized platinum electrodes in sulphuric acid solutions
title_full_unstemmed Potentiodynamic characteristics of ruthenized platinum electrodes in sulphuric acid solutions
title_sort Potentiodynamic characteristics of ruthenized platinum electrodes in sulphuric acid solutions
dc.creator.none.fl_str_mv Lezna, Reynaldo Oscar
Tacconi, Norma R. de
Arvia, Alejandro Jorge
author Lezna, Reynaldo Oscar
author_facet Lezna, Reynaldo Oscar
Tacconi, Norma R. de
Arvia, Alejandro Jorge
author_role author
author2 Tacconi, Norma R. de
Arvia, Alejandro Jorge
author2_role author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Química
ruthenized platinum electrodes
potentiodynamic response
topic Ciencias Exactas
Química
ruthenized platinum electrodes
potentiodynamic response
dc.description.none.fl_txt_mv The potentiodynamic response of ruthenized platinum electrodes in 0.5 M and 12 M H<sub>2</sub>SO<sub>4</sub> at 25°C is investigated. The E/I profiles depend on the electrode history and involve sintering-type effects. In 12 M H<sub>2</sub>SO<sub>4</sub> they can be analysed in more detail because the separation of the H-adatom and O-electroadsorption potential ranges is greater than in 0.5 M H<sub>2</sub>SO<sub>4</sub>. Thus, four different stages related to the oxide layer are distinguished. The interpretation of the corresponding overall processes is given in terms of the equilibrium potentials of the Ru/H<sub>2</sub>O system and the reversibility characteristics of the different stages derived from the various potential/time perturbation programs are discussed through reaction patterns previously considered for these reactions on other noble metals.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
description The potentiodynamic response of ruthenized platinum electrodes in 0.5 M and 12 M H<sub>2</sub>SO<sub>4</sub> at 25°C is investigated. The E/I profiles depend on the electrode history and involve sintering-type effects. In 12 M H<sub>2</sub>SO<sub>4</sub> they can be analysed in more detail because the separation of the H-adatom and O-electroadsorption potential ranges is greater than in 0.5 M H<sub>2</sub>SO<sub>4</sub>. Thus, four different stages related to the oxide layer are distinguished. The interpretation of the corresponding overall processes is given in terms of the equilibrium potentials of the Ru/H<sub>2</sub>O system and the reversibility characteristics of the different stages derived from the various potential/time perturbation programs are discussed through reaction patterns previously considered for these reactions on other noble metals.
publishDate 1983
dc.date.none.fl_str_mv 1983-08
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/10915/125759
url http://sedici.unlp.edu.ar/handle/10915/125759
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/S0022072883804331
info:eu-repo/semantics/altIdentifier/issn/0022-0728
info:eu-repo/semantics/altIdentifier/doi/10.1016/S0022-0728(83)80433-1
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
193-207
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 13.22299

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