Preparation of 100−160-nm-sized branched palladium islands with enhanced electrocatalytic properties on HOPG

Autores
Gimeno, Y.; Hernández Creus, A.; González, S.; Salvarezza, Roberto Carlos; Arvia, Alejandro Jorge
Año de publicación
2001
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A method for the preparation of stable 100-160-nm-sized quasi-2D branched palladium islands on highly oriented pyrolitic graphite (HOPG) is described. This type of island is electrodeposited from an aqueous acidic palladium chloride solution containing an excess of sodium perchlorate at potentials just a few millivolts above the threshold potential of the hydrogen evolution reaction. Each branched palladium island consists of a central 3D core and large quasi-2D branches that form a dense radial pattern. In contrast to massive palladium, branched islands exhibit enhanced electrocatalytic properties for the hydrogen atom electroadsorption/electrodesorption reaction and the electrooxidation reaction of hydrazine. This enhancement is mainly related to the fractal characteristics of branched palladium islands on HOPG.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Facultad de Ciencias Exactas
Materia
Ciencias Exactas
Química
Grafito
Paladio
Catálisis
Hidrógeno
Electrodos
electrodeposition
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:10915/87924
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/87924
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Preparation of 100−160-nm-sized branched palladium islands with enhanced electrocatalytic properties on HOPGGimeno, Y.Hernández Creus, A.González, S.Salvarezza, Roberto CarlosArvia, Alejandro JorgeCiencias ExactasQuímicaGrafitoPaladioCatálisisHidrógenoElectrodoselectrodepositionA method for the preparation of stable 100-160-nm-sized quasi-2D branched palladium islands on highly oriented pyrolitic graphite (HOPG) is described. This type of island is electrodeposited from an aqueous acidic palladium chloride solution containing an excess of sodium perchlorate at potentials just a few millivolts above the threshold potential of the hydrogen evolution reaction. Each branched palladium island consists of a central 3D core and large quasi-2D branches that form a dense radial pattern. In contrast to massive palladium, branched islands exhibit enhanced electrocatalytic properties for the hydrogen atom electroadsorption/electrodesorption reaction and the electrooxidation reaction of hydrazine. This enhancement is mainly related to the fractal characteristics of branched palladium islands on HOPG.Instituto de Investigaciones Fisicoquímicas Teóricas y AplicadasFacultad de Ciencias Exactas2001-04-27info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf1857-1864http://sedici.unlp.edu.ar/handle/10915/87924enginfo:eu-repo/semantics/altIdentifier/issn/0897-4756info:eu-repo/semantics/altIdentifier/doi/10.1021/cm0100164info: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:UNLP2025-09-29T11:17:29Zoai:sedici.unlp.edu.ar:10915/87924Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:17:30.086SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Preparation of 100−160-nm-sized branched palladium islands with enhanced electrocatalytic properties on HOPG
title Preparation of 100−160-nm-sized branched palladium islands with enhanced electrocatalytic properties on HOPG
spellingShingle Preparation of 100−160-nm-sized branched palladium islands with enhanced electrocatalytic properties on HOPG
Gimeno, Y.
Ciencias Exactas
Química
Grafito
Paladio
Catálisis
Hidrógeno
Electrodos
electrodeposition
title_short Preparation of 100−160-nm-sized branched palladium islands with enhanced electrocatalytic properties on HOPG
title_full Preparation of 100−160-nm-sized branched palladium islands with enhanced electrocatalytic properties on HOPG
title_fullStr Preparation of 100−160-nm-sized branched palladium islands with enhanced electrocatalytic properties on HOPG
title_full_unstemmed Preparation of 100−160-nm-sized branched palladium islands with enhanced electrocatalytic properties on HOPG
title_sort Preparation of 100−160-nm-sized branched palladium islands with enhanced electrocatalytic properties on HOPG
dc.creator.none.fl_str_mv Gimeno, Y.
Hernández Creus, A.
González, S.
Salvarezza, Roberto Carlos
Arvia, Alejandro Jorge
author Gimeno, Y.
author_facet Gimeno, Y.
Hernández Creus, A.
González, S.
Salvarezza, Roberto Carlos
Arvia, Alejandro Jorge
author_role author
author2 Hernández Creus, A.
González, S.
Salvarezza, Roberto Carlos
Arvia, Alejandro Jorge
author2_role author
author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Química
Grafito
Paladio
Catálisis
Hidrógeno
Electrodos
electrodeposition
topic Ciencias Exactas
Química
Grafito
Paladio
Catálisis
Hidrógeno
Electrodos
electrodeposition
dc.description.none.fl_txt_mv A method for the preparation of stable 100-160-nm-sized quasi-2D branched palladium islands on highly oriented pyrolitic graphite (HOPG) is described. This type of island is electrodeposited from an aqueous acidic palladium chloride solution containing an excess of sodium perchlorate at potentials just a few millivolts above the threshold potential of the hydrogen evolution reaction. Each branched palladium island consists of a central 3D core and large quasi-2D branches that form a dense radial pattern. In contrast to massive palladium, branched islands exhibit enhanced electrocatalytic properties for the hydrogen atom electroadsorption/electrodesorption reaction and the electrooxidation reaction of hydrazine. This enhancement is mainly related to the fractal characteristics of branched palladium islands on HOPG.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Facultad de Ciencias Exactas
description A method for the preparation of stable 100-160-nm-sized quasi-2D branched palladium islands on highly oriented pyrolitic graphite (HOPG) is described. This type of island is electrodeposited from an aqueous acidic palladium chloride solution containing an excess of sodium perchlorate at potentials just a few millivolts above the threshold potential of the hydrogen evolution reaction. Each branched palladium island consists of a central 3D core and large quasi-2D branches that form a dense radial pattern. In contrast to massive palladium, branched islands exhibit enhanced electrocatalytic properties for the hydrogen atom electroadsorption/electrodesorption reaction and the electrooxidation reaction of hydrazine. This enhancement is mainly related to the fractal characteristics of branched palladium islands on HOPG.
publishDate 2001
dc.date.none.fl_str_mv 2001-04-27
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/10915/87924
url http://sedici.unlp.edu.ar/handle/10915/87924
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0897-4756
info:eu-repo/semantics/altIdentifier/doi/10.1021/cm0100164
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
1857-1864
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 13.070432

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