Synthesis and characterization of Cu core Pt–Ru shell nanoparticles for the electro-oxidation of alcohols
- Autores
- Sieben, Juan Manuel; Comignani, Vanina; Alvarez, Andrea Elizabeth; Duarte, Marta María Elena
- Año de publicación
- 2014
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Cu@PteRu coreeshell supported electrocatalysts have been synthesized by a two-step process via a galvanic displacement reaction. XRD diffraction and EDX analysis, and cyclic voltammetry measurements revealed the presence of nanoparticles composed by a Curich PteCu core surrounded by a Pt-rich PteRu shell. Cyclic voltammetry and chronoamperometric measurements showed that as-synthesized coreeshell materials exhibit superior catalytic activity towards methanol and ethanol electro-oxidation compared to a commercial PteRu/C catalyst with higher Pt loading. This behavior can be associated with the lattice mismatch between the Pt-rich shell and the Cu rich core, which in turn produces lattice-strain, surface ligand effects and a large amount of surface defect sites. In addition, the coreeshell electrodes displayed a better catalytic activity and lower onset potentials for ethanol oxidation than for methanol oxidation.
Fil: Sieben, Juan Manuel. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Comignani, Vanina. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Alvarez, Andrea Elizabeth. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Duarte, Marta María Elena. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina - Materia
-
Core Shell Nanoparticles
Carbon Supported Electrocatalysts
Methanol And Ethanol Electro Oxidation - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
.jpg)
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/21769
Ver los metadatos del registro completo
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Synthesis and characterization of Cu core Pt–Ru shell nanoparticles for the electro-oxidation of alcoholsSieben, Juan ManuelComignani, VaninaAlvarez, Andrea ElizabethDuarte, Marta María ElenaCore Shell NanoparticlesCarbon Supported ElectrocatalystsMethanol And Ethanol Electro Oxidationhttps://purl.org/becyt/ford/2.10https://purl.org/becyt/ford/2https://purl.org/becyt/ford/2.10https://purl.org/becyt/ford/2Cu@PteRu coreeshell supported electrocatalysts have been synthesized by a two-step process via a galvanic displacement reaction. XRD diffraction and EDX analysis, and cyclic voltammetry measurements revealed the presence of nanoparticles composed by a Curich PteCu core surrounded by a Pt-rich PteRu shell. Cyclic voltammetry and chronoamperometric measurements showed that as-synthesized coreeshell materials exhibit superior catalytic activity towards methanol and ethanol electro-oxidation compared to a commercial PteRu/C catalyst with higher Pt loading. This behavior can be associated with the lattice mismatch between the Pt-rich shell and the Cu rich core, which in turn produces lattice-strain, surface ligand effects and a large amount of surface defect sites. In addition, the coreeshell electrodes displayed a better catalytic activity and lower onset potentials for ethanol oxidation than for methanol oxidation.Fil: Sieben, Juan Manuel. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Comignani, Vanina. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Alvarez, Andrea Elizabeth. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Duarte, Marta María Elena. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; ArgentinaElsevier2014-05info: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/11336/21769Sieben, Juan Manuel; Comignani, Vanina; Alvarez, Andrea Elizabeth; Duarte, Marta María Elena; Synthesis and characterization of Cu core Pt–Ru shell nanoparticles for the electro-oxidation of alcohols; Elsevier; International Journal of Hydrogen Energy; 39; 16; 5-2014; 8667-86740360-3199CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0360319913029996info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ijhydene.2013.12.064info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:38:26Zoai:ri.conicet.gov.ar:11336/21769instacron: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:34982025-10-22 11:38:26.541CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
| dc.title.none.fl_str_mv |
Synthesis and characterization of Cu core Pt–Ru shell nanoparticles for the electro-oxidation of alcohols |
| title |
Synthesis and characterization of Cu core Pt–Ru shell nanoparticles for the electro-oxidation of alcohols |
| spellingShingle |
Synthesis and characterization of Cu core Pt–Ru shell nanoparticles for the electro-oxidation of alcohols Sieben, Juan Manuel Core Shell Nanoparticles Carbon Supported Electrocatalysts Methanol And Ethanol Electro Oxidation |
| title_short |
Synthesis and characterization of Cu core Pt–Ru shell nanoparticles for the electro-oxidation of alcohols |
| title_full |
Synthesis and characterization of Cu core Pt–Ru shell nanoparticles for the electro-oxidation of alcohols |
| title_fullStr |
Synthesis and characterization of Cu core Pt–Ru shell nanoparticles for the electro-oxidation of alcohols |
| title_full_unstemmed |
Synthesis and characterization of Cu core Pt–Ru shell nanoparticles for the electro-oxidation of alcohols |
| title_sort |
Synthesis and characterization of Cu core Pt–Ru shell nanoparticles for the electro-oxidation of alcohols |
| dc.creator.none.fl_str_mv |
Sieben, Juan Manuel Comignani, Vanina Alvarez, Andrea Elizabeth Duarte, Marta María Elena |
| author |
Sieben, Juan Manuel |
| author_facet |
Sieben, Juan Manuel Comignani, Vanina Alvarez, Andrea Elizabeth Duarte, Marta María Elena |
| author_role |
author |
| author2 |
Comignani, Vanina Alvarez, Andrea Elizabeth Duarte, Marta María Elena |
| author2_role |
author author author |
| dc.subject.none.fl_str_mv |
Core Shell Nanoparticles Carbon Supported Electrocatalysts Methanol And Ethanol Electro Oxidation |
| topic |
Core Shell Nanoparticles Carbon Supported Electrocatalysts Methanol And Ethanol Electro Oxidation |
| purl_subject.fl_str_mv |
https://purl.org/becyt/ford/2.10 https://purl.org/becyt/ford/2 https://purl.org/becyt/ford/2.10 https://purl.org/becyt/ford/2 |
| dc.description.none.fl_txt_mv |
Cu@PteRu coreeshell supported electrocatalysts have been synthesized by a two-step process via a galvanic displacement reaction. XRD diffraction and EDX analysis, and cyclic voltammetry measurements revealed the presence of nanoparticles composed by a Curich PteCu core surrounded by a Pt-rich PteRu shell. Cyclic voltammetry and chronoamperometric measurements showed that as-synthesized coreeshell materials exhibit superior catalytic activity towards methanol and ethanol electro-oxidation compared to a commercial PteRu/C catalyst with higher Pt loading. This behavior can be associated with the lattice mismatch between the Pt-rich shell and the Cu rich core, which in turn produces lattice-strain, surface ligand effects and a large amount of surface defect sites. In addition, the coreeshell electrodes displayed a better catalytic activity and lower onset potentials for ethanol oxidation than for methanol oxidation. Fil: Sieben, Juan Manuel. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Comignani, Vanina. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Alvarez, Andrea Elizabeth. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Duarte, Marta María Elena. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina |
| description |
Cu@PteRu coreeshell supported electrocatalysts have been synthesized by a two-step process via a galvanic displacement reaction. XRD diffraction and EDX analysis, and cyclic voltammetry measurements revealed the presence of nanoparticles composed by a Curich PteCu core surrounded by a Pt-rich PteRu shell. Cyclic voltammetry and chronoamperometric measurements showed that as-synthesized coreeshell materials exhibit superior catalytic activity towards methanol and ethanol electro-oxidation compared to a commercial PteRu/C catalyst with higher Pt loading. This behavior can be associated with the lattice mismatch between the Pt-rich shell and the Cu rich core, which in turn produces lattice-strain, surface ligand effects and a large amount of surface defect sites. In addition, the coreeshell electrodes displayed a better catalytic activity and lower onset potentials for ethanol oxidation than for methanol oxidation. |
| publishDate |
2014 |
| dc.date.none.fl_str_mv |
2014-05 |
| 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/11336/21769 Sieben, Juan Manuel; Comignani, Vanina; Alvarez, Andrea Elizabeth; Duarte, Marta María Elena; Synthesis and characterization of Cu core Pt–Ru shell nanoparticles for the electro-oxidation of alcohols; Elsevier; International Journal of Hydrogen Energy; 39; 16; 5-2014; 8667-8674 0360-3199 CONICET Digital CONICET |
| url |
http://hdl.handle.net/11336/21769 |
| identifier_str_mv |
Sieben, Juan Manuel; Comignani, Vanina; Alvarez, Andrea Elizabeth; Duarte, Marta María Elena; Synthesis and characterization of Cu core Pt–Ru shell nanoparticles for the electro-oxidation of alcohols; Elsevier; International Journal of Hydrogen Energy; 39; 16; 5-2014; 8667-8674 0360-3199 CONICET Digital CONICET |
| dc.language.none.fl_str_mv |
eng |
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eng |
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info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0360319913029996 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ijhydene.2013.12.064 |
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openAccess |
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application/pdf application/pdf application/pdf application/pdf |
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Elsevier |
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Elsevier |
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reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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