Probe beam deflection studies of nanostructured catalyst materials for fuel cells

Autores
García, Gonzalo; Bruno, Mariano Martín; Planes, Gabriel Angel; Rodriguez, J. L.; Barbero, César Alfredo; Pastor, E.
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Probe beam deflection (PBD) techniques, both as cyclic voltadeflectometry (CVD) and chronodeflectometry (CD), were applied for the first time to the study of the electrochemistry of nanostructured Pt materials which are commonly used as electrocatalysts in fuel cells. The electrochemical surface reactions, including faradaic processes, double layer charging and specific anion adsorption were easily detected. Quantitative analysis of the chronodeflectometric data made possible to elucidate the dynamics of double layer charging in such materials and to determine the potential of zero charge (pzc) of the metal present either as a monolithic mesoporous material or as metal nanoparticles supported on carbon. The electro-oxidation of CO, adsorbed on nanostructured Pt, was also studied by CVD and CD being able to detect the formation of CO2 and H3O+ related with the nucleation and growth process which controls the rate of CO stripping. The interplay of Pt oxide formation and COad electrooxidation, both in potential and time, was detected indicating possible application of the technique to other electrocatalysts.
Fil: García, Gonzalo. Universidad de La Laguna; España
Fil: Bruno, Mariano Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Planes, Gabriel Angel. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina
Fil: Rodriguez, J. L.. Universidad de La Laguna; España
Fil: Barbero, César Alfredo. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Pastor, E.. Universidad de La Laguna; España
Materia
beam deflection
nanostructured
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/242197
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Probe beam deflection studies of nanostructured catalyst materials for fuel cellsGarcía, GonzaloBruno, Mariano MartínPlanes, Gabriel AngelRodriguez, J. L.Barbero, César AlfredoPastor, E.beam deflectionnanostructuredhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Probe beam deflection (PBD) techniques, both as cyclic voltadeflectometry (CVD) and chronodeflectometry (CD), were applied for the first time to the study of the electrochemistry of nanostructured Pt materials which are commonly used as electrocatalysts in fuel cells. The electrochemical surface reactions, including faradaic processes, double layer charging and specific anion adsorption were easily detected. Quantitative analysis of the chronodeflectometric data made possible to elucidate the dynamics of double layer charging in such materials and to determine the potential of zero charge (pzc) of the metal present either as a monolithic mesoporous material or as metal nanoparticles supported on carbon. The electro-oxidation of CO, adsorbed on nanostructured Pt, was also studied by CVD and CD being able to detect the formation of CO2 and H3O+ related with the nucleation and growth process which controls the rate of CO stripping. The interplay of Pt oxide formation and COad electrooxidation, both in potential and time, was detected indicating possible application of the technique to other electrocatalysts.Fil: García, Gonzalo. Universidad de La Laguna; EspañaFil: Bruno, Mariano Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; ArgentinaFil: Planes, Gabriel Angel. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; ArgentinaFil: Rodriguez, J. L.. Universidad de La Laguna; EspañaFil: Barbero, César Alfredo. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; ArgentinaFil: Pastor, E.. Universidad de La Laguna; EspañaRoyal Society of Chemistry2008-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/242197García, Gonzalo; Bruno, Mariano Martín; Planes, Gabriel Angel; Rodriguez, J. L.; Barbero, César Alfredo; et al.; Probe beam deflection studies of nanostructured catalyst materials for fuel cells; Royal Society of Chemistry; Physical Chemistry Chemical Physics; 10; 44; 12-2008; 6677-66851463-9076CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/content/articlelanding/2008/cp/b806938ginfo:eu-repo/semantics/altIdentifier/doi/10.1039/B806938Ginfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:06:26Zoai:ri.conicet.gov.ar:11336/242197instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 15:06:26.422CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Probe beam deflection studies of nanostructured catalyst materials for fuel cells
title Probe beam deflection studies of nanostructured catalyst materials for fuel cells
spellingShingle Probe beam deflection studies of nanostructured catalyst materials for fuel cells
García, Gonzalo
beam deflection
nanostructured
title_short Probe beam deflection studies of nanostructured catalyst materials for fuel cells
title_full Probe beam deflection studies of nanostructured catalyst materials for fuel cells
title_fullStr Probe beam deflection studies of nanostructured catalyst materials for fuel cells
title_full_unstemmed Probe beam deflection studies of nanostructured catalyst materials for fuel cells
title_sort Probe beam deflection studies of nanostructured catalyst materials for fuel cells
dc.creator.none.fl_str_mv García, Gonzalo
Bruno, Mariano Martín
Planes, Gabriel Angel
Rodriguez, J. L.
Barbero, César Alfredo
Pastor, E.
author García, Gonzalo
author_facet García, Gonzalo
Bruno, Mariano Martín
Planes, Gabriel Angel
Rodriguez, J. L.
Barbero, César Alfredo
Pastor, E.
author_role author
author2 Bruno, Mariano Martín
Planes, Gabriel Angel
Rodriguez, J. L.
Barbero, César Alfredo
Pastor, E.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv beam deflection
nanostructured
topic beam deflection
nanostructured
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Probe beam deflection (PBD) techniques, both as cyclic voltadeflectometry (CVD) and chronodeflectometry (CD), were applied for the first time to the study of the electrochemistry of nanostructured Pt materials which are commonly used as electrocatalysts in fuel cells. The electrochemical surface reactions, including faradaic processes, double layer charging and specific anion adsorption were easily detected. Quantitative analysis of the chronodeflectometric data made possible to elucidate the dynamics of double layer charging in such materials and to determine the potential of zero charge (pzc) of the metal present either as a monolithic mesoporous material or as metal nanoparticles supported on carbon. The electro-oxidation of CO, adsorbed on nanostructured Pt, was also studied by CVD and CD being able to detect the formation of CO2 and H3O+ related with the nucleation and growth process which controls the rate of CO stripping. The interplay of Pt oxide formation and COad electrooxidation, both in potential and time, was detected indicating possible application of the technique to other electrocatalysts.
Fil: García, Gonzalo. Universidad de La Laguna; España
Fil: Bruno, Mariano Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Planes, Gabriel Angel. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina
Fil: Rodriguez, J. L.. Universidad de La Laguna; España
Fil: Barbero, César Alfredo. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Pastor, E.. Universidad de La Laguna; España
description Probe beam deflection (PBD) techniques, both as cyclic voltadeflectometry (CVD) and chronodeflectometry (CD), were applied for the first time to the study of the electrochemistry of nanostructured Pt materials which are commonly used as electrocatalysts in fuel cells. The electrochemical surface reactions, including faradaic processes, double layer charging and specific anion adsorption were easily detected. Quantitative analysis of the chronodeflectometric data made possible to elucidate the dynamics of double layer charging in such materials and to determine the potential of zero charge (pzc) of the metal present either as a monolithic mesoporous material or as metal nanoparticles supported on carbon. The electro-oxidation of CO, adsorbed on nanostructured Pt, was also studied by CVD and CD being able to detect the formation of CO2 and H3O+ related with the nucleation and growth process which controls the rate of CO stripping. The interplay of Pt oxide formation and COad electrooxidation, both in potential and time, was detected indicating possible application of the technique to other electrocatalysts.
publishDate 2008
dc.date.none.fl_str_mv 2008-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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://hdl.handle.net/11336/242197
García, Gonzalo; Bruno, Mariano Martín; Planes, Gabriel Angel; Rodriguez, J. L.; Barbero, César Alfredo; et al.; Probe beam deflection studies of nanostructured catalyst materials for fuel cells; Royal Society of Chemistry; Physical Chemistry Chemical Physics; 10; 44; 12-2008; 6677-6685
1463-9076
CONICET Digital
CONICET
url http://hdl.handle.net/11336/242197
identifier_str_mv García, Gonzalo; Bruno, Mariano Martín; Planes, Gabriel Angel; Rodriguez, J. L.; Barbero, César Alfredo; et al.; Probe beam deflection studies of nanostructured catalyst materials for fuel cells; Royal Society of Chemistry; Physical Chemistry Chemical Physics; 10; 44; 12-2008; 6677-6685
1463-9076
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/content/articlelanding/2008/cp/b806938g
info:eu-repo/semantics/altIdentifier/doi/10.1039/B806938G
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Royal Society of Chemistry
publisher.none.fl_str_mv Royal Society of Chemistry
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.891075

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