Scanning tunneling microscopy of electrochemically activated platinum surfaces : A direct ex-situ determination of the electrode nanotopography

Autores
Vázquez, L.; Gómez, J.; Baro, A. M.; García, N.; Marcos, M. L.; González Velasco, J.; Vara, J. M.; Arvia, Alejandro Jorge; Presa, J.; García, A.; Aguilar, M.
Año de publicación
1987
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A direct scanning tunneling microscopy ex-situ determination on the nanometer scale of the topography of electrochemically highly activated platinum electrodes is presented. A correlation between catalytic activity and surface microtopography becomes evident. This result gives support to a structural model for the activated electrode surface. In the model, a volume with a pebble-like structure allows electrocatalytic processes to occur practically free of diffusion relaxation contributions under usual voltammetric conditions.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Materia
Ciencias Exactas
Química
scanning tunneling microscopy
platinum electrodes
electrocatalytic processes
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:10915/126531
Acceder
id SEDICI_4328f9cf69053bc7ba8bc80e4b8b45ec
oai_identifier_str oai:sedici.unlp.edu.ar:10915/126531
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Scanning tunneling microscopy of electrochemically activated platinum surfaces : A direct ex-situ determination of the electrode nanotopographyVázquez, L.Gómez, J.Baro, A. M.García, N.Marcos, M. L.González Velasco, J.Vara, J. M.Arvia, Alejandro JorgePresa, J.García, A.Aguilar, M.Ciencias ExactasQuímicascanning tunneling microscopyplatinum electrodeselectrocatalytic processesA direct scanning tunneling microscopy ex-situ determination on the nanometer scale of the topography of electrochemically highly activated platinum electrodes is presented. A correlation between catalytic activity and surface microtopography becomes evident. This result gives support to a structural model for the activated electrode surface. In the model, a volume with a pebble-like structure allows electrocatalytic processes to occur practically free of diffusion relaxation contributions under usual voltammetric conditions.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/pdf1730–1733http://sedici.unlp.edu.ar/handle/10915/126531enginfo:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/pdf/10.1021/ja00240a022info:eu-repo/semantics/altIdentifier/issn/0002-7863info:eu-repo/semantics/altIdentifier/issn/1520-5126info:eu-repo/semantics/altIdentifier/doi/10.1021/ja00240a022info: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:UNLP2025-09-03T11:02:34Zoai:sedici.unlp.edu.ar:10915/126531Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 11:02:34.762SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Scanning tunneling microscopy of electrochemically activated platinum surfaces : A direct ex-situ determination of the electrode nanotopography
title Scanning tunneling microscopy of electrochemically activated platinum surfaces : A direct ex-situ determination of the electrode nanotopography
spellingShingle Scanning tunneling microscopy of electrochemically activated platinum surfaces : A direct ex-situ determination of the electrode nanotopography
Vázquez, L.
Ciencias Exactas
Química
scanning tunneling microscopy
platinum electrodes
electrocatalytic processes
title_short Scanning tunneling microscopy of electrochemically activated platinum surfaces : A direct ex-situ determination of the electrode nanotopography
title_full Scanning tunneling microscopy of electrochemically activated platinum surfaces : A direct ex-situ determination of the electrode nanotopography
title_fullStr Scanning tunneling microscopy of electrochemically activated platinum surfaces : A direct ex-situ determination of the electrode nanotopography
title_full_unstemmed Scanning tunneling microscopy of electrochemically activated platinum surfaces : A direct ex-situ determination of the electrode nanotopography
title_sort Scanning tunneling microscopy of electrochemically activated platinum surfaces : A direct ex-situ determination of the electrode nanotopography
dc.creator.none.fl_str_mv Vázquez, L.
Gómez, J.
Baro, A. M.
García, N.
Marcos, M. L.
González Velasco, J.
Vara, J. M.
Arvia, Alejandro Jorge
Presa, J.
García, A.
Aguilar, M.
author Vázquez, L.
author_facet Vázquez, L.
Gómez, J.
Baro, A. M.
García, N.
Marcos, M. L.
González Velasco, J.
Vara, J. M.
Arvia, Alejandro Jorge
Presa, J.
García, A.
Aguilar, M.
author_role author
author2 Gómez, J.
Baro, A. M.
García, N.
Marcos, M. L.
González Velasco, J.
Vara, J. M.
Arvia, Alejandro Jorge
Presa, J.
García, A.
Aguilar, M.
author2_role author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Química
scanning tunneling microscopy
platinum electrodes
electrocatalytic processes
topic Ciencias Exactas
Química
scanning tunneling microscopy
platinum electrodes
electrocatalytic processes
dc.description.none.fl_txt_mv A direct scanning tunneling microscopy ex-situ determination on the nanometer scale of the topography of electrochemically highly activated platinum electrodes is presented. A correlation between catalytic activity and surface microtopography becomes evident. This result gives support to a structural model for the activated electrode surface. In the model, a volume with a pebble-like structure allows electrocatalytic processes to occur practically free of diffusion relaxation contributions under usual voltammetric conditions.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
description A direct scanning tunneling microscopy ex-situ determination on the nanometer scale of the topography of electrochemically highly activated platinum electrodes is presented. A correlation between catalytic activity and surface microtopography becomes evident. This result gives support to a structural model for the activated electrode surface. In the model, a volume with a pebble-like structure allows electrocatalytic processes to occur practically free of diffusion relaxation contributions under usual voltammetric conditions.
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/10915/126531
url http://sedici.unlp.edu.ar/handle/10915/126531
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/pdf/10.1021/ja00240a022
info:eu-repo/semantics/altIdentifier/issn/0002-7863
info:eu-repo/semantics/altIdentifier/issn/1520-5126
info:eu-repo/semantics/altIdentifier/doi/10.1021/ja00240a022
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
1730–1733
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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