Spontaneous deposition of Pt-nanoparticles on HOPG surfaces

Autores
Arroyo Gomez, Jose Joaquin; Garcia, Silvana Graciela
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Platinum nanoparticles were obtained on glassy carbon (GC) by spontaneous deposition in a 1 mM H2PtCl6 + 0.5 M H2SO4 solution. The structures obtained were characterized using AFM, SEM and cyclic voltammetry in order to study their catalytic activity. AFM imaging shows hemispherical Pt nanoparticles distributed mainly on the polish lines, changing in size with the increasing of time. SEM images showed Pt nanoparticles on the entire exposed surface with different shapes and sizes, in both AFM and SEM dendritic structures were also found, the EDX analysis revealed only the presence of C, O and Pt on the surface. The electrochemical characterization showed an increase in current density with the immersion time and at longer immersion times the voltammetric response was similar to polycrystalline Pt.
Fil: Arroyo Gomez, Jose Joaquin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; Argentina
Fil: Garcia, Silvana Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; Argentina
Materia
Platinum
Spontaneous Deposition
Stm
Ordered Structures
Nivel de accesibilidad
acceso abierto
Condiciones de uso
Atribución-NoComercial-CompartirIgual 2.5 Argentina (CC 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:11336/44078
Acceder
id CONICETDig_9965e4ca8ca47f62fc03239d40ef72be
oai_identifier_str oai:ri.conicet.gov.ar:11336/44078
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Spontaneous deposition of Pt-nanoparticles on HOPG surfacesArroyo Gomez, Jose JoaquinGarcia, Silvana GracielaPlatinumSpontaneous DepositionStmOrdered Structureshttps://purl.org/becyt/ford/2.10https://purl.org/becyt/ford/2Platinum nanoparticles were obtained on glassy carbon (GC) by spontaneous deposition in a 1 mM H2PtCl6 + 0.5 M H2SO4 solution. The structures obtained were characterized using AFM, SEM and cyclic voltammetry in order to study their catalytic activity. AFM imaging shows hemispherical Pt nanoparticles distributed mainly on the polish lines, changing in size with the increasing of time. SEM images showed Pt nanoparticles on the entire exposed surface with different shapes and sizes, in both AFM and SEM dendritic structures were also found, the EDX analysis revealed only the presence of C, O and Pt on the surface. The electrochemical characterization showed an increase in current density with the immersion time and at longer immersion times the voltammetric response was similar to polycrystalline Pt.Fil: Arroyo Gomez, Jose Joaquin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; ArgentinaFil: Garcia, Silvana Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; ArgentinaJohn Wiley & Sons Ltd2015-12info: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/11336/44078Arroyo Gomez, Jose Joaquin; Garcia, Silvana Graciela; Spontaneous deposition of Pt-nanoparticles on HOPG surfaces; John Wiley & Sons Ltd; Surface and Interface Analysis; 47; 12; 12-2015; 1127-11310142-2421CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/sia.5862info:eu-repo/semantics/altIdentifier/doi/10.1002/sia.5862info:eu-repo/semantics/openAccessAtribución-NoComercial-CompartirIgual 2.5 Argentina (CC BY-NC-SA 2.5 AR)https://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:09:49Zoai:ri.conicet.gov.ar:11336/44078instacron: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 10:09:49.961CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Spontaneous deposition of Pt-nanoparticles on HOPG surfaces
title Spontaneous deposition of Pt-nanoparticles on HOPG surfaces
spellingShingle Spontaneous deposition of Pt-nanoparticles on HOPG surfaces
Arroyo Gomez, Jose Joaquin
Platinum
Spontaneous Deposition
Stm
Ordered Structures
title_short Spontaneous deposition of Pt-nanoparticles on HOPG surfaces
title_full Spontaneous deposition of Pt-nanoparticles on HOPG surfaces
title_fullStr Spontaneous deposition of Pt-nanoparticles on HOPG surfaces
title_full_unstemmed Spontaneous deposition of Pt-nanoparticles on HOPG surfaces
title_sort Spontaneous deposition of Pt-nanoparticles on HOPG surfaces
dc.creator.none.fl_str_mv Arroyo Gomez, Jose Joaquin
Garcia, Silvana Graciela
author Arroyo Gomez, Jose Joaquin
author_facet Arroyo Gomez, Jose Joaquin
Garcia, Silvana Graciela
author_role author
author2 Garcia, Silvana Graciela
author2_role author
dc.subject.none.fl_str_mv Platinum
Spontaneous Deposition
Stm
Ordered Structures
topic Platinum
Spontaneous Deposition
Stm
Ordered Structures
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.10
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Platinum nanoparticles were obtained on glassy carbon (GC) by spontaneous deposition in a 1 mM H2PtCl6 + 0.5 M H2SO4 solution. The structures obtained were characterized using AFM, SEM and cyclic voltammetry in order to study their catalytic activity. AFM imaging shows hemispherical Pt nanoparticles distributed mainly on the polish lines, changing in size with the increasing of time. SEM images showed Pt nanoparticles on the entire exposed surface with different shapes and sizes, in both AFM and SEM dendritic structures were also found, the EDX analysis revealed only the presence of C, O and Pt on the surface. The electrochemical characterization showed an increase in current density with the immersion time and at longer immersion times the voltammetric response was similar to polycrystalline Pt.
Fil: Arroyo Gomez, Jose Joaquin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; Argentina
Fil: Garcia, Silvana Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; Argentina
description Platinum nanoparticles were obtained on glassy carbon (GC) by spontaneous deposition in a 1 mM H2PtCl6 + 0.5 M H2SO4 solution. The structures obtained were characterized using AFM, SEM and cyclic voltammetry in order to study their catalytic activity. AFM imaging shows hemispherical Pt nanoparticles distributed mainly on the polish lines, changing in size with the increasing of time. SEM images showed Pt nanoparticles on the entire exposed surface with different shapes and sizes, in both AFM and SEM dendritic structures were also found, the EDX analysis revealed only the presence of C, O and Pt on the surface. The electrochemical characterization showed an increase in current density with the immersion time and at longer immersion times the voltammetric response was similar to polycrystalline Pt.
publishDate 2015
dc.date.none.fl_str_mv 2015-12
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/11336/44078
Arroyo Gomez, Jose Joaquin; Garcia, Silvana Graciela; Spontaneous deposition of Pt-nanoparticles on HOPG surfaces; John Wiley & Sons Ltd; Surface and Interface Analysis; 47; 12; 12-2015; 1127-1131
0142-2421
CONICET Digital
CONICET
url http://hdl.handle.net/11336/44078
identifier_str_mv Arroyo Gomez, Jose Joaquin; Garcia, Silvana Graciela; Spontaneous deposition of Pt-nanoparticles on HOPG surfaces; John Wiley & Sons Ltd; Surface and Interface Analysis; 47; 12; 12-2015; 1127-1131
0142-2421
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://onlinelibrary.wiley.com/doi/abs/10.1002/sia.5862
info:eu-repo/semantics/altIdentifier/doi/10.1002/sia.5862
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
Atribución-NoComercial-CompartirIgual 2.5 Argentina (CC BY-NC-SA 2.5 AR)
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv Atribución-NoComercial-CompartirIgual 2.5 Argentina (CC BY-NC-SA 2.5 AR)
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 John Wiley & Sons Ltd
publisher.none.fl_str_mv John Wiley & Sons Ltd
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
_version_ 1844613980899770368
score 13.070432

Publicaciones similares