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dc.contributor.author
Asteazaran, Mariano
dc.contributor.author
Bengió, Silvina
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Triaca, Walter Enrique
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Castro Luna Berenguer, Ana Maria del Carmen
dc.date.available
2017-05-31T19:58:18Z
dc.date.issued
2014-09-18
dc.identifier.citation
Asteazaran, Mariano; Bengió, Silvina; Triaca, Walter Enrique; Castro Luna Berenguer, Ana Maria del Carmen; Methanol tolerant electrocatalysts for the oxygen reduction reaction; Springer; Journal Of Applied Electrochemistry; 44; 12; 18-9-2014; 1271-1278
dc.identifier.issn
0021-891X
dc.identifier.uri
http://hdl.handle.net/11336/17202
dc.description.abstract
Direct methanol fuel cells (DMFCs) represent an interesting alternative in obtaining electricity in a clean and efficient way. Portable power sources are one of the most promising applications of passive DMFCs. One of the requirements in these devices is to use high alcohol concentration, which due to methanol crossover causes a considerable loss of fuel cell efficiency. In order to develop methanol tolerant cathodes with suitable activity, different supported catalysts namely PtCo/C and PtCoRu/C, were prepared either via ethylene glycol reduction (EG) with or without microwave heating assistance (MW) or via the alloy method, the latter followed by a thermal treatment in a reducing atmosphere (N2/H2). All cathode-catalysts were tested to determine the role of the components in simultaneously enhancing the oxygen reduction reaction (ORR) and discouraging the methanol oxidation reaction. According to the synthesis methodology, X-ray photoelectron spectra showed that the amount of metal oxides on the surface varies, being higher on the PtCo/C EG and PtCoRu/C EG catalysts. The electrochemical characterization of the catalysts was accomplished in a three electrodes electrochemical cell with a glassy carbon rotating disk electrode covered with a thin catalytic film as working electrode. To study the ORR and the influence of different methanol concentrations, linear sweep voltammetry and cyclic voltammetry were employed. The PtCo/C EG, with an important metal oxide amount on the surface, and the PtCoRu/C MW and EG electrodes, both with RuO2 on their surfaces, were the most tolerant to methanol presence.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Orr
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Ptco/C
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Ptcoru/C
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Methanol Crossover
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Dmfc
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Methanol-Tolerant Cathode Catalysts
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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 tolerant electrocatalysts for the oxygen reduction reaction
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-11-23T19:41:50Z
dc.journal.volume
44
dc.journal.number
12
dc.journal.pagination
1271-1278
dc.journal.pais
Alemania
dc.journal.ciudad
Berlin
dc.description.fil
Fil: Asteazaran, Mariano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - la Plata. Instituto de Investigaciones Fisico-químicas Teóricas y Aplicadas. Universidad Nacional de la Plata. Facultad de Cs.exactas. Instituto de Investigaciones Fisico-químicas Teóricas y Aplicadas; Argentina
dc.description.fil
Fil: Bengió, Silvina. Comision Nacional de Energia Atomica. Centro Atomico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Triaca, Walter Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - la Plata. Instituto de Investigaciones Fisico-químicas Teóricas y Aplicadas. Universidad Nacional de la Plata. Facultad de Cs.exactas. Instituto de Investigaciones Fisico-químicas Teóricas y Aplicadas; Argentina
dc.description.fil
Fil: Castro Luna Berenguer, Ana Maria del Carmen. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - la Plata. Instituto de Investigaciones Fisico-químicas Teóricas y Aplicadas. Universidad Nacional de la Plata. Facultad de Cs.exactas. Instituto de Investigaciones Fisico-químicas Teóricas y Aplicadas; Argentina. Universidad Tecnológica Nacional. Facultad Regional La Plata. Centro de Investigación y Desarrollo en Ciencia y Tecnología de Materiales; Argentina
dc.journal.title
Journal Of Applied Electrochemistry
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s10800-014-0748-1
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs10800-014-0748-1
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