Agglomeration and Cleaning of Carbon Supported Palladium Nanoparticles in Electrochemical Environment

Autores
Martins, Cauê A.; Fernández, Pablo Sebastián; Troiani, Horacio E.; Martins, María Elisa; Arenillas de la Puente, Ana; Camara, Giuseppe A.
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Here we investigate the electrochemical behavior of Pd/C synthesized by reduction with ethylene glycol in the presence of polyvinylpyrrolidone (EG-PVP). EG-PVP produces nanoparticles (NPs) with a narrow size distribution, but some of them remain covered by impurities after the synthesis. After successive voltammetric cycles, NPs become cleaner, but some agglomeration and structural modification occur; these effects affect the electrochemical behavior of Pd/C in different ways, so we used CO as a probe to better understand the processes taking place. CO stripping shows that the general features of the multiple oxidation peaks change with the number of cycles. Possibly, CO and OH from different NPs react when the particles agglomerate, contributing to CO stripping changes. Finally, different active areas are found when the charges involved in CO oxidation and PdO reduction are compared. Such differences are rationalized in terms of a balance between the increase of sites which promote the oxidation of CO and the loss of area provoked by the growing of the particles.
Fil: Martins, Cauê A.. Universidade Federal do Mato Grosso do Sul; Brasil
Fil: Fernández, Pablo Sebastián. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Troiani, Horacio E.. Comision Nacional de Energía Atómica. Gerencia de Área Investigaciones y Aplicaciones no Nucleares. Gerencia de Física (Centro Atómico Bariloche). División Física de Metales; Argentina
Fil: Martins, María Elisa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Arenillas de la Puente, Ana. Instituto Nacional del Carbón; España
Fil: Camara, Giuseppe A.. Universidade Federal do Mato Grosso do Sul; Brasil
Materia
Palladium Nanoparticles
Pvp
Cleaning Process
Agglomeration of Nanoparticles
Active Surface Area .
Co Probe
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:11336/28006
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/28006
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Agglomeration and Cleaning of Carbon Supported Palladium Nanoparticles in Electrochemical EnvironmentMartins, Cauê A.Fernández, Pablo SebastiánTroiani, Horacio E.Martins, María ElisaArenillas de la Puente, AnaCamara, Giuseppe A.Palladium NanoparticlesPvpCleaning ProcessAgglomeration of NanoparticlesActive Surface Area .Co Probehttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Here we investigate the electrochemical behavior of Pd/C synthesized by reduction with ethylene glycol in the presence of polyvinylpyrrolidone (EG-PVP). EG-PVP produces nanoparticles (NPs) with a narrow size distribution, but some of them remain covered by impurities after the synthesis. After successive voltammetric cycles, NPs become cleaner, but some agglomeration and structural modification occur; these effects affect the electrochemical behavior of Pd/C in different ways, so we used CO as a probe to better understand the processes taking place. CO stripping shows that the general features of the multiple oxidation peaks change with the number of cycles. Possibly, CO and OH from different NPs react when the particles agglomerate, contributing to CO stripping changes. Finally, different active areas are found when the charges involved in CO oxidation and PdO reduction are compared. Such differences are rationalized in terms of a balance between the increase of sites which promote the oxidation of CO and the loss of area provoked by the growing of the particles.Fil: Martins, Cauê A.. Universidade Federal do Mato Grosso do Sul; BrasilFil: Fernández, Pablo Sebastián. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaFil: Troiani, Horacio E.. Comision Nacional de Energía Atómica. Gerencia de Área Investigaciones y Aplicaciones no Nucleares. Gerencia de Física (Centro Atómico Bariloche). División Física de Metales; ArgentinaFil: Martins, María Elisa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaFil: Arenillas de la Puente, Ana. Instituto Nacional del Carbón; EspañaFil: Camara, Giuseppe A.. Universidade Federal do Mato Grosso do Sul; BrasilSpringer2014-01-16info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/28006Martins, Cauê A.; Fernández, Pablo Sebastián; Troiani, Horacio E.; Martins, María Elisa; Arenillas de la Puente, Ana; et al.; Agglomeration and Cleaning of Carbon Supported Palladium Nanoparticles in Electrochemical Environment; Springer; Electrocatalysis; 5; 2; 16-1-2014; 204-2121868-2529CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1007/s12678-014-0184-3info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs12678-014-0184-3info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:20:12Zoai:ri.conicet.gov.ar:11336/28006instacron: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 10:20:12.511CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Agglomeration and Cleaning of Carbon Supported Palladium Nanoparticles in Electrochemical Environment
title Agglomeration and Cleaning of Carbon Supported Palladium Nanoparticles in Electrochemical Environment
spellingShingle Agglomeration and Cleaning of Carbon Supported Palladium Nanoparticles in Electrochemical Environment
Martins, Cauê A.
Palladium Nanoparticles
Pvp
Cleaning Process
Agglomeration of Nanoparticles
Active Surface Area .
Co Probe
title_short Agglomeration and Cleaning of Carbon Supported Palladium Nanoparticles in Electrochemical Environment
title_full Agglomeration and Cleaning of Carbon Supported Palladium Nanoparticles in Electrochemical Environment
title_fullStr Agglomeration and Cleaning of Carbon Supported Palladium Nanoparticles in Electrochemical Environment
title_full_unstemmed Agglomeration and Cleaning of Carbon Supported Palladium Nanoparticles in Electrochemical Environment
title_sort Agglomeration and Cleaning of Carbon Supported Palladium Nanoparticles in Electrochemical Environment
dc.creator.none.fl_str_mv Martins, Cauê A.
Fernández, Pablo Sebastián
Troiani, Horacio E.
Martins, María Elisa
Arenillas de la Puente, Ana
Camara, Giuseppe A.
author Martins, Cauê A.
author_facet Martins, Cauê A.
Fernández, Pablo Sebastián
Troiani, Horacio E.
Martins, María Elisa
Arenillas de la Puente, Ana
Camara, Giuseppe A.
author_role author
author2 Fernández, Pablo Sebastián
Troiani, Horacio E.
Martins, María Elisa
Arenillas de la Puente, Ana
Camara, Giuseppe A.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Palladium Nanoparticles
Pvp
Cleaning Process
Agglomeration of Nanoparticles
Active Surface Area .
Co Probe
topic Palladium Nanoparticles
Pvp
Cleaning Process
Agglomeration of Nanoparticles
Active Surface Area .
Co Probe
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Here we investigate the electrochemical behavior of Pd/C synthesized by reduction with ethylene glycol in the presence of polyvinylpyrrolidone (EG-PVP). EG-PVP produces nanoparticles (NPs) with a narrow size distribution, but some of them remain covered by impurities after the synthesis. After successive voltammetric cycles, NPs become cleaner, but some agglomeration and structural modification occur; these effects affect the electrochemical behavior of Pd/C in different ways, so we used CO as a probe to better understand the processes taking place. CO stripping shows that the general features of the multiple oxidation peaks change with the number of cycles. Possibly, CO and OH from different NPs react when the particles agglomerate, contributing to CO stripping changes. Finally, different active areas are found when the charges involved in CO oxidation and PdO reduction are compared. Such differences are rationalized in terms of a balance between the increase of sites which promote the oxidation of CO and the loss of area provoked by the growing of the particles.
Fil: Martins, Cauê A.. Universidade Federal do Mato Grosso do Sul; Brasil
Fil: Fernández, Pablo Sebastián. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Troiani, Horacio E.. Comision Nacional de Energía Atómica. Gerencia de Área Investigaciones y Aplicaciones no Nucleares. Gerencia de Física (Centro Atómico Bariloche). División Física de Metales; Argentina
Fil: Martins, María Elisa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Arenillas de la Puente, Ana. Instituto Nacional del Carbón; España
Fil: Camara, Giuseppe A.. Universidade Federal do Mato Grosso do Sul; Brasil
description Here we investigate the electrochemical behavior of Pd/C synthesized by reduction with ethylene glycol in the presence of polyvinylpyrrolidone (EG-PVP). EG-PVP produces nanoparticles (NPs) with a narrow size distribution, but some of them remain covered by impurities after the synthesis. After successive voltammetric cycles, NPs become cleaner, but some agglomeration and structural modification occur; these effects affect the electrochemical behavior of Pd/C in different ways, so we used CO as a probe to better understand the processes taking place. CO stripping shows that the general features of the multiple oxidation peaks change with the number of cycles. Possibly, CO and OH from different NPs react when the particles agglomerate, contributing to CO stripping changes. Finally, different active areas are found when the charges involved in CO oxidation and PdO reduction are compared. Such differences are rationalized in terms of a balance between the increase of sites which promote the oxidation of CO and the loss of area provoked by the growing of the particles.
publishDate 2014
dc.date.none.fl_str_mv 2014-01-16
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/11336/28006
Martins, Cauê A.; Fernández, Pablo Sebastián; Troiani, Horacio E.; Martins, María Elisa; Arenillas de la Puente, Ana; et al.; Agglomeration and Cleaning of Carbon Supported Palladium Nanoparticles in Electrochemical Environment; Springer; Electrocatalysis; 5; 2; 16-1-2014; 204-212
1868-2529
CONICET Digital
CONICET
url http://hdl.handle.net/11336/28006
identifier_str_mv Martins, Cauê A.; Fernández, Pablo Sebastián; Troiani, Horacio E.; Martins, María Elisa; Arenillas de la Puente, Ana; et al.; Agglomeration and Cleaning of Carbon Supported Palladium Nanoparticles in Electrochemical Environment; Springer; Electrocatalysis; 5; 2; 16-1-2014; 204-212
1868-2529
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1007/s12678-014-0184-3
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs12678-014-0184-3
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
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
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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