Formation of Au/Pd–Sn trimetallic particles onto vitreous carbon

Autores
Meier, Lorena Alejandra; Ferron, Julio; Garcia, Silvana Graciela; Salinas, Daniel Ricardo
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The sequential deposition process of Pd and Sn on Au microcrystals, previously electrodeposited onto vitreous carbon (VC) was investigated in sulphuric acid solution by cyclic voltammetry and Auger electron spectroscopy (AES). Scanning electron microscopy was used to characterize Au deposits. The results reveal that the deposition of Pd and Sn is selective on the Au microcrystals, uniformly distributed on the VC surface, due to the strong interaction energy between the three metals. From the cyclic voltammetric and AES measurements in the VC/Au/Pd/Sn system, the existence of a Sn core–shell structure with Pd can be inferred. Similar voltammetric results were obtained for the VC/Au/Sn/Pd system, where in this case, the Pd adsorbed layer screened the Sn deposits on the VC/Au interface. However, the AES spectrum shows that Sn is still present on the surface, indicating that probably, the Sn deposits have diffused to the surface, or they are not completely covered by Pd. The VC/Au/Pd/Sn modified substrate appears as an interesting electrocatalyst material for the reduction of nitrate ions.
Fil: Meier, Lorena Alejandra. Universidad Nacional del Sur. Departamento de Ingenieria Quimica. Instituto Ing.electroquimica y Corrosion; Argentina
Fil: Ferron, Julio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); Argentina
Fil: Garcia, Silvana Graciela. Universidad Nacional del Sur. Departamento de Ingenieria Quimica. Instituto Ing.electroquimica y Corrosion; Argentina
Fil: Salinas, Daniel Ricardo. Universidad Nacional del Sur. Departamento de Ingenieria Quimica. Instituto Ing.electroquimica y Corrosion; Argentina
Materia
Vitreous Carbon
Tin
Palladium
Gold
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:11336/6538
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Formation of Au/Pd–Sn trimetallic particles onto vitreous carbonMeier, Lorena AlejandraFerron, JulioGarcia, Silvana GracielaSalinas, Daniel RicardoVitreous CarbonTinPalladiumGoldhttps://purl.org/becyt/ford/2.10https://purl.org/becyt/ford/2The sequential deposition process of Pd and Sn on Au microcrystals, previously electrodeposited onto vitreous carbon (VC) was investigated in sulphuric acid solution by cyclic voltammetry and Auger electron spectroscopy (AES). Scanning electron microscopy was used to characterize Au deposits. The results reveal that the deposition of Pd and Sn is selective on the Au microcrystals, uniformly distributed on the VC surface, due to the strong interaction energy between the three metals. From the cyclic voltammetric and AES measurements in the VC/Au/Pd/Sn system, the existence of a Sn core–shell structure with Pd can be inferred. Similar voltammetric results were obtained for the VC/Au/Sn/Pd system, where in this case, the Pd adsorbed layer screened the Sn deposits on the VC/Au interface. However, the AES spectrum shows that Sn is still present on the surface, indicating that probably, the Sn deposits have diffused to the surface, or they are not completely covered by Pd. The VC/Au/Pd/Sn modified substrate appears as an interesting electrocatalyst material for the reduction of nitrate ions.Fil: Meier, Lorena Alejandra. Universidad Nacional del Sur. Departamento de Ingenieria Quimica. Instituto Ing.electroquimica y Corrosion; ArgentinaFil: Ferron, Julio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); ArgentinaFil: Garcia, Silvana Graciela. Universidad Nacional del Sur. Departamento de Ingenieria Quimica. Instituto Ing.electroquimica y Corrosion; ArgentinaFil: Salinas, Daniel Ricardo. Universidad Nacional del Sur. Departamento de Ingenieria Quimica. Instituto Ing.electroquimica y Corrosion; ArgentinaWiley2013-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/6538Meier, Lorena Alejandra; Ferron, Julio; Garcia, Silvana Graciela; Salinas, Daniel Ricardo; Formation of Au/Pd–Sn trimetallic particles onto vitreous carbon; Wiley; Surface and Interface Analysis; 45; 7; 1-2013; 1105-11080142-2421enginfo:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/sia.5231/abstractinfo:eu-repo/semantics/altIdentifier/doi/10.1002/sia.5231info:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:45:27Zoai:ri.conicet.gov.ar:11336/6538instacron: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 14:45:27.43CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Formation of Au/Pd–Sn trimetallic particles onto vitreous carbon
title Formation of Au/Pd–Sn trimetallic particles onto vitreous carbon
spellingShingle Formation of Au/Pd–Sn trimetallic particles onto vitreous carbon
Meier, Lorena Alejandra
Vitreous Carbon
Tin
Palladium
Gold
title_short Formation of Au/Pd–Sn trimetallic particles onto vitreous carbon
title_full Formation of Au/Pd–Sn trimetallic particles onto vitreous carbon
title_fullStr Formation of Au/Pd–Sn trimetallic particles onto vitreous carbon
title_full_unstemmed Formation of Au/Pd–Sn trimetallic particles onto vitreous carbon
title_sort Formation of Au/Pd–Sn trimetallic particles onto vitreous carbon
dc.creator.none.fl_str_mv Meier, Lorena Alejandra
Ferron, Julio
Garcia, Silvana Graciela
Salinas, Daniel Ricardo
author Meier, Lorena Alejandra
author_facet Meier, Lorena Alejandra
Ferron, Julio
Garcia, Silvana Graciela
Salinas, Daniel Ricardo
author_role author
author2 Ferron, Julio
Garcia, Silvana Graciela
Salinas, Daniel Ricardo
author2_role author
author
author
dc.subject.none.fl_str_mv Vitreous Carbon
Tin
Palladium
Gold
topic Vitreous Carbon
Tin
Palladium
Gold
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.10
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv The sequential deposition process of Pd and Sn on Au microcrystals, previously electrodeposited onto vitreous carbon (VC) was investigated in sulphuric acid solution by cyclic voltammetry and Auger electron spectroscopy (AES). Scanning electron microscopy was used to characterize Au deposits. The results reveal that the deposition of Pd and Sn is selective on the Au microcrystals, uniformly distributed on the VC surface, due to the strong interaction energy between the three metals. From the cyclic voltammetric and AES measurements in the VC/Au/Pd/Sn system, the existence of a Sn core–shell structure with Pd can be inferred. Similar voltammetric results were obtained for the VC/Au/Sn/Pd system, where in this case, the Pd adsorbed layer screened the Sn deposits on the VC/Au interface. However, the AES spectrum shows that Sn is still present on the surface, indicating that probably, the Sn deposits have diffused to the surface, or they are not completely covered by Pd. The VC/Au/Pd/Sn modified substrate appears as an interesting electrocatalyst material for the reduction of nitrate ions.
Fil: Meier, Lorena Alejandra. Universidad Nacional del Sur. Departamento de Ingenieria Quimica. Instituto Ing.electroquimica y Corrosion; Argentina
Fil: Ferron, Julio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química (i); Argentina
Fil: Garcia, Silvana Graciela. Universidad Nacional del Sur. Departamento de Ingenieria Quimica. Instituto Ing.electroquimica y Corrosion; Argentina
Fil: Salinas, Daniel Ricardo. Universidad Nacional del Sur. Departamento de Ingenieria Quimica. Instituto Ing.electroquimica y Corrosion; Argentina
description The sequential deposition process of Pd and Sn on Au microcrystals, previously electrodeposited onto vitreous carbon (VC) was investigated in sulphuric acid solution by cyclic voltammetry and Auger electron spectroscopy (AES). Scanning electron microscopy was used to characterize Au deposits. The results reveal that the deposition of Pd and Sn is selective on the Au microcrystals, uniformly distributed on the VC surface, due to the strong interaction energy between the three metals. From the cyclic voltammetric and AES measurements in the VC/Au/Pd/Sn system, the existence of a Sn core–shell structure with Pd can be inferred. Similar voltammetric results were obtained for the VC/Au/Sn/Pd system, where in this case, the Pd adsorbed layer screened the Sn deposits on the VC/Au interface. However, the AES spectrum shows that Sn is still present on the surface, indicating that probably, the Sn deposits have diffused to the surface, or they are not completely covered by Pd. The VC/Au/Pd/Sn modified substrate appears as an interesting electrocatalyst material for the reduction of nitrate ions.
publishDate 2013
dc.date.none.fl_str_mv 2013-01
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/11336/6538
Meier, Lorena Alejandra; Ferron, Julio; Garcia, Silvana Graciela; Salinas, Daniel Ricardo; Formation of Au/Pd–Sn trimetallic particles onto vitreous carbon; Wiley; Surface and Interface Analysis; 45; 7; 1-2013; 1105-1108
0142-2421
url http://hdl.handle.net/11336/6538
identifier_str_mv Meier, Lorena Alejandra; Ferron, Julio; Garcia, Silvana Graciela; Salinas, Daniel Ricardo; Formation of Au/Pd–Sn trimetallic particles onto vitreous carbon; Wiley; Surface and Interface Analysis; 45; 7; 1-2013; 1105-1108
0142-2421
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/sia.5231/abstract
info:eu-repo/semantics/altIdentifier/doi/10.1002/sia.5231
info:eu-repo/semantics/altIdentifier/doi/
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
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
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 13.22299

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