Development of PtGe and PtIn anodic catalysts supported on carbonaceous materials for DMFC

Autores
Veizaga, Natalia Soledad; Paganin, Valdecir A.; Rocha, Thairo A.; Scelza, Osvaldo Antonio; de Miguel, Sergio Ruben; Gonzalez, Ernesto R.
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Bimetallic PtGe and PtIn catalysts (Ge/Pt and In/Pt molar ratios = 0.33, 17 wt.% Pt loading) were prepared over carbonaceous supports (carbon Vulcan, carbon nanotubes and structured mesoporous carbon). The liquid phase deposition–reduction method by using 0.4 M sodium borohydride as a reducing agent was employed. The electrocatalytic activity for methanol oxidation was compared with a commercial Pt/CV E-TEK catalyst. The onset potential of the CO oxidation was shifted to less positive values for carbon Vulcan and carbon nanotubes supported catalysts and with a smaller effect in the case of mesoporous carbon supported ones. The best electrocatalytic performance was obtained by using carbon Vulcan as support of bimetallic catalysts, followed by carbon nanotubes. The performance of mesoporous carbon as a support was not adequate. PtGe/CV, PtGe/NT and PtIn/CV catalysts displayed the best performance in DMFC. The good performance of these catalysts could be due to the presence of small particle sizes with a narrow distribution, and to geometric effects (observed from different characterization techniques) related to a probable decoration of Ge or In around the small Pt particles.
Fil: Veizaga, Natalia Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Fil: Paganin, Valdecir A.. Universidade de Sao Paulo; Brasil
Fil: Rocha, Thairo A.. Universidade de Sao Paulo; Brasil
Fil: Scelza, Osvaldo Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Fil: de Miguel, Sergio Ruben. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Fil: Gonzalez, Ernesto R.. Universidade de Sao Paulo; Brasil
Materia
Carbonaceous Support
Direct Methanol Fuel Cell
Electrocatalysts
Germanium
Indium
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:11336/31647
Acceder
id CONICETDig_f2949e8c1bf324eb0b60f8ef1ce7cf93
oai_identifier_str oai:ri.conicet.gov.ar:11336/31647
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Development of PtGe and PtIn anodic catalysts supported on carbonaceous materials for DMFCVeizaga, Natalia SoledadPaganin, Valdecir A.Rocha, Thairo A.Scelza, Osvaldo Antoniode Miguel, Sergio RubenGonzalez, Ernesto R.Carbonaceous SupportDirect Methanol Fuel CellElectrocatalystsGermaniumIndiumhttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2Bimetallic PtGe and PtIn catalysts (Ge/Pt and In/Pt molar ratios = 0.33, 17 wt.% Pt loading) were prepared over carbonaceous supports (carbon Vulcan, carbon nanotubes and structured mesoporous carbon). The liquid phase deposition–reduction method by using 0.4 M sodium borohydride as a reducing agent was employed. The electrocatalytic activity for methanol oxidation was compared with a commercial Pt/CV E-TEK catalyst. The onset potential of the CO oxidation was shifted to less positive values for carbon Vulcan and carbon nanotubes supported catalysts and with a smaller effect in the case of mesoporous carbon supported ones. The best electrocatalytic performance was obtained by using carbon Vulcan as support of bimetallic catalysts, followed by carbon nanotubes. The performance of mesoporous carbon as a support was not adequate. PtGe/CV, PtGe/NT and PtIn/CV catalysts displayed the best performance in DMFC. The good performance of these catalysts could be due to the presence of small particle sizes with a narrow distribution, and to geometric effects (observed from different characterization techniques) related to a probable decoration of Ge or In around the small Pt particles.Fil: Veizaga, Natalia Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; ArgentinaFil: Paganin, Valdecir A.. Universidade de Sao Paulo; BrasilFil: Rocha, Thairo A.. Universidade de Sao Paulo; BrasilFil: Scelza, Osvaldo Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; ArgentinaFil: de Miguel, Sergio Ruben. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; ArgentinaFil: Gonzalez, Ernesto R.. Universidade de Sao Paulo; BrasilElsevier2014-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/31647de Miguel, Sergio Ruben; Scelza, Osvaldo Antonio; Rocha, Thairo A.; Paganin, Valdecir A.; Veizaga, Natalia Soledad; Gonzalez, Ernesto R.; et al.; Development of PtGe and PtIn anodic catalysts supported on carbonaceous materials for DMFC; Elsevier; International Journal of Hydrogen Energy; 39; 16; 1-2014; 8728-87370360-3199CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0360319913029753info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ijhydene.2013.12.041info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:40:05Zoai:ri.conicet.gov.ar:11336/31647instacron: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:34982025-09-29 09:40:05.808CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Development of PtGe and PtIn anodic catalysts supported on carbonaceous materials for DMFC
title Development of PtGe and PtIn anodic catalysts supported on carbonaceous materials for DMFC
spellingShingle Development of PtGe and PtIn anodic catalysts supported on carbonaceous materials for DMFC
Veizaga, Natalia Soledad
Carbonaceous Support
Direct Methanol Fuel Cell
Electrocatalysts
Germanium
Indium
title_short Development of PtGe and PtIn anodic catalysts supported on carbonaceous materials for DMFC
title_full Development of PtGe and PtIn anodic catalysts supported on carbonaceous materials for DMFC
title_fullStr Development of PtGe and PtIn anodic catalysts supported on carbonaceous materials for DMFC
title_full_unstemmed Development of PtGe and PtIn anodic catalysts supported on carbonaceous materials for DMFC
title_sort Development of PtGe and PtIn anodic catalysts supported on carbonaceous materials for DMFC
dc.creator.none.fl_str_mv Veizaga, Natalia Soledad
Paganin, Valdecir A.
Rocha, Thairo A.
Scelza, Osvaldo Antonio
de Miguel, Sergio Ruben
Gonzalez, Ernesto R.
author Veizaga, Natalia Soledad
author_facet Veizaga, Natalia Soledad
Paganin, Valdecir A.
Rocha, Thairo A.
Scelza, Osvaldo Antonio
de Miguel, Sergio Ruben
Gonzalez, Ernesto R.
author_role author
author2 Paganin, Valdecir A.
Rocha, Thairo A.
Scelza, Osvaldo Antonio
de Miguel, Sergio Ruben
Gonzalez, Ernesto R.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Carbonaceous Support
Direct Methanol Fuel Cell
Electrocatalysts
Germanium
Indium
topic Carbonaceous Support
Direct Methanol Fuel Cell
Electrocatalysts
Germanium
Indium
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Bimetallic PtGe and PtIn catalysts (Ge/Pt and In/Pt molar ratios = 0.33, 17 wt.% Pt loading) were prepared over carbonaceous supports (carbon Vulcan, carbon nanotubes and structured mesoporous carbon). The liquid phase deposition–reduction method by using 0.4 M sodium borohydride as a reducing agent was employed. The electrocatalytic activity for methanol oxidation was compared with a commercial Pt/CV E-TEK catalyst. The onset potential of the CO oxidation was shifted to less positive values for carbon Vulcan and carbon nanotubes supported catalysts and with a smaller effect in the case of mesoporous carbon supported ones. The best electrocatalytic performance was obtained by using carbon Vulcan as support of bimetallic catalysts, followed by carbon nanotubes. The performance of mesoporous carbon as a support was not adequate. PtGe/CV, PtGe/NT and PtIn/CV catalysts displayed the best performance in DMFC. The good performance of these catalysts could be due to the presence of small particle sizes with a narrow distribution, and to geometric effects (observed from different characterization techniques) related to a probable decoration of Ge or In around the small Pt particles.
Fil: Veizaga, Natalia Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Fil: Paganin, Valdecir A.. Universidade de Sao Paulo; Brasil
Fil: Rocha, Thairo A.. Universidade de Sao Paulo; Brasil
Fil: Scelza, Osvaldo Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Fil: de Miguel, Sergio Ruben. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Fil: Gonzalez, Ernesto R.. Universidade de Sao Paulo; Brasil
description Bimetallic PtGe and PtIn catalysts (Ge/Pt and In/Pt molar ratios = 0.33, 17 wt.% Pt loading) were prepared over carbonaceous supports (carbon Vulcan, carbon nanotubes and structured mesoporous carbon). The liquid phase deposition–reduction method by using 0.4 M sodium borohydride as a reducing agent was employed. The electrocatalytic activity for methanol oxidation was compared with a commercial Pt/CV E-TEK catalyst. The onset potential of the CO oxidation was shifted to less positive values for carbon Vulcan and carbon nanotubes supported catalysts and with a smaller effect in the case of mesoporous carbon supported ones. The best electrocatalytic performance was obtained by using carbon Vulcan as support of bimetallic catalysts, followed by carbon nanotubes. The performance of mesoporous carbon as a support was not adequate. PtGe/CV, PtGe/NT and PtIn/CV catalysts displayed the best performance in DMFC. The good performance of these catalysts could be due to the presence of small particle sizes with a narrow distribution, and to geometric effects (observed from different characterization techniques) related to a probable decoration of Ge or In around the small Pt particles.
publishDate 2014
dc.date.none.fl_str_mv 2014-01
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/11336/31647
de Miguel, Sergio Ruben; Scelza, Osvaldo Antonio; Rocha, Thairo A.; Paganin, Valdecir A.; Veizaga, Natalia Soledad; Gonzalez, Ernesto R.; et al.; Development of PtGe and PtIn anodic catalysts supported on carbonaceous materials for DMFC; Elsevier; International Journal of Hydrogen Energy; 39; 16; 1-2014; 8728-8737
0360-3199
CONICET Digital
CONICET
url http://hdl.handle.net/11336/31647
identifier_str_mv de Miguel, Sergio Ruben; Scelza, Osvaldo Antonio; Rocha, Thairo A.; Paganin, Valdecir A.; Veizaga, Natalia Soledad; Gonzalez, Ernesto R.; et al.; Development of PtGe and PtIn anodic catalysts supported on carbonaceous materials for DMFC; Elsevier; International Journal of Hydrogen Energy; 39; 16; 1-2014; 8728-8737
0360-3199
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0360319913029753
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ijhydene.2013.12.041
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
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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 13.070432

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