Carbon supported Pt-NiO nanoparticles for ethanol electro-oxidation in acid media

Autores
Comignani, Vanina; Sieben, Juan Manuel; Brigante, Maximiliano Eduardo; Duarte, Marta María Elena
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In the present work, the influence of nickel oxide as a co-catalyst of Pt nanoparticles for the electro-oxidation of ethanol in the temperature range of 23-60 °C was investigated. The carbon supported nickel oxide and platinum nanoparticles were prepared by hydrothermal synthesis and microwaveassisted polyol process respectively, and characterized by XRD, EDX, TEM and ICP analysis. The electrocatalytic activity of the as-prepared materials was studied by cyclic voltammetry and chronoamperometry. Small metal nanoparticles with sizes in the range of 3.5-4.5 nm were obtained. The nickel content in the as-prepared Pt-NiO/C catalysts was between 19 and 35 at.%. The electrochemical experiments showed that the electrocatalytic activity of the Pt-NiO/C materials increase with NiO content in the entire temperature range. The apparent activation energy (Ea,app) for the overall ethanol oxidation reaction was found to decrease with NiO content (24-32 kJ mol-1 at 0.3 V), while for Pt/C the activation energy exceeds 48 kJ mol-1. The better performance of the Pt-NiO/C catalysts compared to Pt/C sample is ascribed to the activation of both the C-H and O-H bonds via oxygen-containing species adsorbed on NiO molecules and the modification of the surface electronic structure (changes in the density of states near the Fermi level).
Fil: Comignani, Vanina. Universidad Nacional del Sur. Departamento de Ingenieria Quimica. Instituto Ing.electroquimica y Corrosion; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Sieben, Juan Manuel. Universidad Nacional del Sur. Departamento de Ingenieria Quimica. Instituto Ing.electroquimica y Corrosion; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Brigante, Maximiliano Eduardo. Universidad Nacional del Sur. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto de Química del Sur; Argentina
Fil: Duarte, Marta María Elena. Universidad Nacional del Sur. Departamento de Ingenieria Quimica. Instituto Ing.electroquimica y Corrosion; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
Pt-Nio/C Nanostructured Catalysts
Ethanol Oxidation
Temperature Dependence
Apparent Activation Energy
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/4692
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/4692
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Carbon supported Pt-NiO nanoparticles for ethanol electro-oxidation in acid mediaComignani, VaninaSieben, Juan ManuelBrigante, Maximiliano EduardoDuarte, Marta María ElenaPt-Nio/C Nanostructured CatalystsEthanol OxidationTemperature DependenceApparent Activation Energyhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1In the present work, the influence of nickel oxide as a co-catalyst of Pt nanoparticles for the electro-oxidation of ethanol in the temperature range of 23-60 °C was investigated. The carbon supported nickel oxide and platinum nanoparticles were prepared by hydrothermal synthesis and microwaveassisted polyol process respectively, and characterized by XRD, EDX, TEM and ICP analysis. The electrocatalytic activity of the as-prepared materials was studied by cyclic voltammetry and chronoamperometry. Small metal nanoparticles with sizes in the range of 3.5-4.5 nm were obtained. The nickel content in the as-prepared Pt-NiO/C catalysts was between 19 and 35 at.%. The electrochemical experiments showed that the electrocatalytic activity of the Pt-NiO/C materials increase with NiO content in the entire temperature range. The apparent activation energy (Ea,app) for the overall ethanol oxidation reaction was found to decrease with NiO content (24-32 kJ mol-1 at 0.3 V), while for Pt/C the activation energy exceeds 48 kJ mol-1. The better performance of the Pt-NiO/C catalysts compared to Pt/C sample is ascribed to the activation of both the C-H and O-H bonds via oxygen-containing species adsorbed on NiO molecules and the modification of the surface electronic structure (changes in the density of states near the Fermi level).Fil: Comignani, Vanina. Universidad Nacional del Sur. Departamento de Ingenieria Quimica. Instituto Ing.electroquimica y Corrosion; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Sieben, Juan Manuel. Universidad Nacional del Sur. Departamento de Ingenieria Quimica. Instituto Ing.electroquimica y Corrosion; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Brigante, Maximiliano Eduardo. Universidad Nacional del Sur. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto de Química del Sur; ArgentinaFil: Duarte, Marta María Elena. Universidad Nacional del Sur. Departamento de Ingenieria Quimica. Instituto Ing.electroquimica y Corrosion; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaElsevier Science2015-02info: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/11336/4692Comignani, Vanina; Sieben, Juan Manuel; Brigante, Maximiliano Eduardo; Duarte, Marta María Elena; Carbon supported Pt-NiO nanoparticles for ethanol electro-oxidation in acid media; Elsevier Science; Journal Of Power Sources; 278; 2-2015; 119-1270378-7753enginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.jpowsour.2014.12.063info:eu-repo/semantics/altIdentifier/issn/http://www.sciencedirect.com/science/article/pii/S0378775314020916info:eu-repo/semantics/altIdentifier/issn/0378-7753info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:18:04Zoai:ri.conicet.gov.ar:11336/4692instacron: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 10:18:04.975CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Carbon supported Pt-NiO nanoparticles for ethanol electro-oxidation in acid media
title Carbon supported Pt-NiO nanoparticles for ethanol electro-oxidation in acid media
spellingShingle Carbon supported Pt-NiO nanoparticles for ethanol electro-oxidation in acid media
Comignani, Vanina
Pt-Nio/C Nanostructured Catalysts
Ethanol Oxidation
Temperature Dependence
Apparent Activation Energy
title_short Carbon supported Pt-NiO nanoparticles for ethanol electro-oxidation in acid media
title_full Carbon supported Pt-NiO nanoparticles for ethanol electro-oxidation in acid media
title_fullStr Carbon supported Pt-NiO nanoparticles for ethanol electro-oxidation in acid media
title_full_unstemmed Carbon supported Pt-NiO nanoparticles for ethanol electro-oxidation in acid media
title_sort Carbon supported Pt-NiO nanoparticles for ethanol electro-oxidation in acid media
dc.creator.none.fl_str_mv Comignani, Vanina
Sieben, Juan Manuel
Brigante, Maximiliano Eduardo
Duarte, Marta María Elena
author Comignani, Vanina
author_facet Comignani, Vanina
Sieben, Juan Manuel
Brigante, Maximiliano Eduardo
Duarte, Marta María Elena
author_role author
author2 Sieben, Juan Manuel
Brigante, Maximiliano Eduardo
Duarte, Marta María Elena
author2_role author
author
author
dc.subject.none.fl_str_mv Pt-Nio/C Nanostructured Catalysts
Ethanol Oxidation
Temperature Dependence
Apparent Activation Energy
topic Pt-Nio/C Nanostructured Catalysts
Ethanol Oxidation
Temperature Dependence
Apparent Activation Energy
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In the present work, the influence of nickel oxide as a co-catalyst of Pt nanoparticles for the electro-oxidation of ethanol in the temperature range of 23-60 °C was investigated. The carbon supported nickel oxide and platinum nanoparticles were prepared by hydrothermal synthesis and microwaveassisted polyol process respectively, and characterized by XRD, EDX, TEM and ICP analysis. The electrocatalytic activity of the as-prepared materials was studied by cyclic voltammetry and chronoamperometry. Small metal nanoparticles with sizes in the range of 3.5-4.5 nm were obtained. The nickel content in the as-prepared Pt-NiO/C catalysts was between 19 and 35 at.%. The electrochemical experiments showed that the electrocatalytic activity of the Pt-NiO/C materials increase with NiO content in the entire temperature range. The apparent activation energy (Ea,app) for the overall ethanol oxidation reaction was found to decrease with NiO content (24-32 kJ mol-1 at 0.3 V), while for Pt/C the activation energy exceeds 48 kJ mol-1. The better performance of the Pt-NiO/C catalysts compared to Pt/C sample is ascribed to the activation of both the C-H and O-H bonds via oxygen-containing species adsorbed on NiO molecules and the modification of the surface electronic structure (changes in the density of states near the Fermi level).
Fil: Comignani, Vanina. Universidad Nacional del Sur. Departamento de Ingenieria Quimica. Instituto Ing.electroquimica y Corrosion; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Sieben, Juan Manuel. Universidad Nacional del Sur. Departamento de Ingenieria Quimica. Instituto Ing.electroquimica y Corrosion; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Brigante, Maximiliano Eduardo. Universidad Nacional del Sur. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Bahía Blanca. Instituto de Química del Sur; Argentina
Fil: Duarte, Marta María Elena. Universidad Nacional del Sur. Departamento de Ingenieria Quimica. Instituto Ing.electroquimica y Corrosion; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description In the present work, the influence of nickel oxide as a co-catalyst of Pt nanoparticles for the electro-oxidation of ethanol in the temperature range of 23-60 °C was investigated. The carbon supported nickel oxide and platinum nanoparticles were prepared by hydrothermal synthesis and microwaveassisted polyol process respectively, and characterized by XRD, EDX, TEM and ICP analysis. The electrocatalytic activity of the as-prepared materials was studied by cyclic voltammetry and chronoamperometry. Small metal nanoparticles with sizes in the range of 3.5-4.5 nm were obtained. The nickel content in the as-prepared Pt-NiO/C catalysts was between 19 and 35 at.%. The electrochemical experiments showed that the electrocatalytic activity of the Pt-NiO/C materials increase with NiO content in the entire temperature range. The apparent activation energy (Ea,app) for the overall ethanol oxidation reaction was found to decrease with NiO content (24-32 kJ mol-1 at 0.3 V), while for Pt/C the activation energy exceeds 48 kJ mol-1. The better performance of the Pt-NiO/C catalysts compared to Pt/C sample is ascribed to the activation of both the C-H and O-H bonds via oxygen-containing species adsorbed on NiO molecules and the modification of the surface electronic structure (changes in the density of states near the Fermi level).
publishDate 2015
dc.date.none.fl_str_mv 2015-02
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/11336/4692
Comignani, Vanina; Sieben, Juan Manuel; Brigante, Maximiliano Eduardo; Duarte, Marta María Elena; Carbon supported Pt-NiO nanoparticles for ethanol electro-oxidation in acid media; Elsevier Science; Journal Of Power Sources; 278; 2-2015; 119-127
0378-7753
url http://hdl.handle.net/11336/4692
identifier_str_mv Comignani, Vanina; Sieben, Juan Manuel; Brigante, Maximiliano Eduardo; Duarte, Marta María Elena; Carbon supported Pt-NiO nanoparticles for ethanol electro-oxidation in acid media; Elsevier Science; Journal Of Power Sources; 278; 2-2015; 119-127
0378-7753
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jpowsour.2014.12.063
info:eu-repo/semantics/altIdentifier/issn/http://www.sciencedirect.com/science/article/pii/S0378775314020916
info:eu-repo/semantics/altIdentifier/issn/0378-7753
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
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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