Obtaining Clean and Well-dispersed Pt NPs with a Microwave-assisted Method

Autores
Armendáriz, Víctor Rolando R.; Martins, Cauê A.; Troiani, Horacio; de Oliveira, L.; Stropa, Jusinei Meireles; Camara, Giuseppe A.; Martins, María Elisa; Fernández, Pablo Sebastián
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Carbon-supported platinum nanoparticles Pt/C (NPs) are used in many fields of science. These kinds of materials have been extensively studied in electrochemistry due to the fact that they are applied in fuel cell technology. Although there are a myriad of methods for Pt NP synthesis, the need for obtaining Pt/C NPs with a good dispersion (covering over the entire support), a narrow size distribution, and clean surface (among other parameters) is far to be overcome. On this sense herein we describe a very easy and quick method of synthesis of highly dispersed Pt NPs followed by a simple electrochemical cleaning step. The catalysts were electrochemically characterized by studying their behavior in 0.5 M H2SO4 and also by using CO as a probe during the CO electro-oxidation reaction (COEOR). This paper shows how to obtain highly dispersed and clean Pt/C NPs that produce very reproducible results. Besides, we demonstrate how the presence of impurities negatively affects the electrochemical reproducibility of Pt NPs with a clear impact on their catalytic activity.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Materia
Química
Platinum nanoparticles
Microwave-assisted synthesis
Cleaning process
Agglomeration of nanoparticles
Active surface area
CO probe
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/133107
Acceder
id SEDICI_f84187071eaa923e105e1c68f05fb234
oai_identifier_str oai:sedici.unlp.edu.ar:10915/133107
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Obtaining Clean and Well-dispersed Pt NPs with a Microwave-assisted MethodArmendáriz, Víctor Rolando R.Martins, Cauê A.Troiani, Horaciode Oliveira, L.Stropa, Jusinei MeirelesCamara, Giuseppe A.Martins, María ElisaFernández, Pablo SebastiánQuímicaPlatinum nanoparticlesMicrowave-assisted synthesisCleaning processAgglomeration of nanoparticlesActive surface areaCO probeCarbon-supported platinum nanoparticles Pt/C (NPs) are used in many fields of science. These kinds of materials have been extensively studied in electrochemistry due to the fact that they are applied in fuel cell technology. Although there are a myriad of methods for Pt NP synthesis, the need for obtaining Pt/C NPs with a good dispersion (covering over the entire support), a narrow size distribution, and clean surface (among other parameters) is far to be overcome. On this sense herein we describe a very easy and quick method of synthesis of highly dispersed Pt NPs followed by a simple electrochemical cleaning step. The catalysts were electrochemically characterized by studying their behavior in 0.5 M H<sub>2</sub>SO<sub>4</sub> and also by using CO as a probe during the CO electro-oxidation reaction (COEOR). This paper shows how to obtain highly dispersed and clean Pt/C NPs that produce very reproducible results. Besides, we demonstrate how the presence of impurities negatively affects the electrochemical reproducibility of Pt NPs with a clear impact on their catalytic activity.Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas2014-03-20info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf279-287http://sedici.unlp.edu.ar/handle/10915/133107enginfo:eu-repo/semantics/altIdentifier/issn/1868-2529info:eu-repo/semantics/altIdentifier/issn/1868-5994info:eu-repo/semantics/altIdentifier/doi/10.1007/s12678-014-0194-1info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T17:12:41Zoai:sedici.unlp.edu.ar:10915/133107Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 17:12:41.47SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Obtaining Clean and Well-dispersed Pt NPs with a Microwave-assisted Method
title Obtaining Clean and Well-dispersed Pt NPs with a Microwave-assisted Method
spellingShingle Obtaining Clean and Well-dispersed Pt NPs with a Microwave-assisted Method
Armendáriz, Víctor Rolando R.
Química
Platinum nanoparticles
Microwave-assisted synthesis
Cleaning process
Agglomeration of nanoparticles
Active surface area
CO probe
title_short Obtaining Clean and Well-dispersed Pt NPs with a Microwave-assisted Method
title_full Obtaining Clean and Well-dispersed Pt NPs with a Microwave-assisted Method
title_fullStr Obtaining Clean and Well-dispersed Pt NPs with a Microwave-assisted Method
title_full_unstemmed Obtaining Clean and Well-dispersed Pt NPs with a Microwave-assisted Method
title_sort Obtaining Clean and Well-dispersed Pt NPs with a Microwave-assisted Method
dc.creator.none.fl_str_mv Armendáriz, Víctor Rolando R.
Martins, Cauê A.
Troiani, Horacio
de Oliveira, L.
Stropa, Jusinei Meireles
Camara, Giuseppe A.
Martins, María Elisa
Fernández, Pablo Sebastián
author Armendáriz, Víctor Rolando R.
author_facet Armendáriz, Víctor Rolando R.
Martins, Cauê A.
Troiani, Horacio
de Oliveira, L.
Stropa, Jusinei Meireles
Camara, Giuseppe A.
Martins, María Elisa
Fernández, Pablo Sebastián
author_role author
author2 Martins, Cauê A.
Troiani, Horacio
de Oliveira, L.
Stropa, Jusinei Meireles
Camara, Giuseppe A.
Martins, María Elisa
Fernández, Pablo Sebastián
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Química
Platinum nanoparticles
Microwave-assisted synthesis
Cleaning process
Agglomeration of nanoparticles
Active surface area
CO probe
topic Química
Platinum nanoparticles
Microwave-assisted synthesis
Cleaning process
Agglomeration of nanoparticles
Active surface area
CO probe
dc.description.none.fl_txt_mv Carbon-supported platinum nanoparticles Pt/C (NPs) are used in many fields of science. These kinds of materials have been extensively studied in electrochemistry due to the fact that they are applied in fuel cell technology. Although there are a myriad of methods for Pt NP synthesis, the need for obtaining Pt/C NPs with a good dispersion (covering over the entire support), a narrow size distribution, and clean surface (among other parameters) is far to be overcome. On this sense herein we describe a very easy and quick method of synthesis of highly dispersed Pt NPs followed by a simple electrochemical cleaning step. The catalysts were electrochemically characterized by studying their behavior in 0.5 M H<sub>2</sub>SO<sub>4</sub> and also by using CO as a probe during the CO electro-oxidation reaction (COEOR). This paper shows how to obtain highly dispersed and clean Pt/C NPs that produce very reproducible results. Besides, we demonstrate how the presence of impurities negatively affects the electrochemical reproducibility of Pt NPs with a clear impact on their catalytic activity.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
description Carbon-supported platinum nanoparticles Pt/C (NPs) are used in many fields of science. These kinds of materials have been extensively studied in electrochemistry due to the fact that they are applied in fuel cell technology. Although there are a myriad of methods for Pt NP synthesis, the need for obtaining Pt/C NPs with a good dispersion (covering over the entire support), a narrow size distribution, and clean surface (among other parameters) is far to be overcome. On this sense herein we describe a very easy and quick method of synthesis of highly dispersed Pt NPs followed by a simple electrochemical cleaning step. The catalysts were electrochemically characterized by studying their behavior in 0.5 M H<sub>2</sub>SO<sub>4</sub> and also by using CO as a probe during the CO electro-oxidation reaction (COEOR). This paper shows how to obtain highly dispersed and clean Pt/C NPs that produce very reproducible results. Besides, we demonstrate how the presence of impurities negatively affects the electrochemical reproducibility of Pt NPs with a clear impact on their catalytic activity.
publishDate 2014
dc.date.none.fl_str_mv 2014-03-20
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/10915/133107
url http://sedici.unlp.edu.ar/handle/10915/133107
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1868-2529
info:eu-repo/semantics/altIdentifier/issn/1868-5994
info:eu-repo/semantics/altIdentifier/doi/10.1007/s12678-014-0194-1
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
279-287
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 12.982451

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