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dc.contributor.author
Sieben, Juan Manuel  
dc.contributor.author
Duarte, Marta María Elena  
dc.contributor.author
Mayer, Carlos Enrique  
dc.date.available
2023-03-07T14:23:41Z  
dc.date.issued
2010-07  
dc.identifier.citation
Sieben, Juan Manuel; Duarte, Marta María Elena; Mayer, Carlos Enrique; Methanol oxidation on carbon supported Pt-Ru catalysts prepared by electrodeposition - Evaluation of Nafion® 117 film effect; Pergamon-Elsevier Science Ltd; International Journal of Hydrogen Energy; 35; 5; 7-2010; 2018-2024  
dc.identifier.issn
0360-3199  
dc.identifier.uri
http://hdl.handle.net/11336/189880  
dc.description.abstract
Diverse electrochemical techniques were performed in order to obtain meaningful information about the methanol oxidation reaction on nanostructured planar carbon supported Pt-Ru electrodes prepared by electrodeposition, on which a layer of Nafion ionomer was incorporated. A metallic deposit consisting of dendritic agglomerates (between 50 and 200 nm) constituted by smaller particles (6 nm) was obtained. The average bulk Ru content obtained by EDX analysis was between 23 and 25 at. %. A decrease of the activity in the electrodes for methanol oxidation was determined when the thickness of the Nafion 117 film was increased. These results may be associated with the partial blocking of the surface active sites by hydrophobic domains of the polymer, and the presence of CO2 molecules retained within the Nafion hydrophilic microchannels. EIS results indicated that methanol electro-oxidation mechanism does not change with Nafion presence.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Pergamon-Elsevier Science Ltd  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
ELECTRODEPOSITED PT-RU SUPPORTED CATALYSTS  
dc.subject
METHANOL OXIDATION  
dc.subject
NAFION FILMS  
dc.subject.classification
Recubrimientos y Películas  
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Ingeniería de los Materiales  
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INGENIERÍAS Y TECNOLOGÍAS  
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Físico-Química, Ciencia de los Polímeros, Electroquímica  
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Ciencias Químicas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
Methanol oxidation on carbon supported Pt-Ru catalysts prepared by electrodeposition - Evaluation of Nafion® 117 film effect  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2023-03-02T15:28:15Z  
dc.journal.volume
35  
dc.journal.number
5  
dc.journal.pagination
2018-2024  
dc.journal.pais
Reino Unido  
dc.description.fil
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  
dc.description.fil
Fil: Duarte, Marta María Elena. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; Argentina  
dc.description.fil
Fil: Mayer, Carlos Enrique. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; Argentina  
dc.journal.title
International Journal of Hydrogen Energy  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.ijhydene.2009.12.078  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0360319909020060