Searching for suitable catalysts for a passive direct methanol fuel cell cathode

Autores
Asteazaran, Mariano; Cespedes, German; Moreno, Mario; Bengio, Silvina; Castro Luna, Ana
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Trimetallic PtMRu/C cathode catalysts with M ¼ Co or Fe obtained by an impregnation procedure using ethylene glycol and NaBH4 as reducing agent, with suitable activity for the oxygen reduction reaction (ORR) and improved tolerance to methanol, have been physically characterized by HRTEM, EDS and XPS. The examined nanoparticles have a small particle size and are well spread on the carbon support. Pt is mainly found as Pt(0) and Co, Fe and Ru are mostly oxidized. To study their durability and performance for ORR and methanol tolerance over time, the catalysts were subjected to an electrochemical accelerated stress test (AST), consisting in cycling the potential 2000 times. Polarization curves for ORR with and without methanol were recorded. After the AST the trimetallic PtMRu/C catalysts are able to keep their performance for ORR in the presence of methanol.
Fil: Asteazaran, Mariano. UNLP-CONICET. INIFTA (Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas); Argentina
Fil: Cespedes, German. UTN (Universidad Tecnológica Nacional). CITEMA (Centro de Investigación y Desarrollo en Ciencia y Tecnología de Materiales); Argentina
Fil: Moreno, Mario. CAB CNEA (Centro Atómico Bariloche, Comisión Nacional de Energía Atómica). CONICET; Argentina
Fil: Bengio, Silvina. CAB CNEA (Centro Atómico Bariloche, Comisión Nacional de Energía Atómica). CONICET; Argentina
Fil: Castro Luna, Ana. UTN (Universidad Tecnológica Nacional). CITEMA (Centro de Investigación y Desarrollo en Ciencia y Tecnología de Materiales). UNLP-CONICET. INIFTA (Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas); Argentina
Peer Reviewed
Materia
ORR; methanol crossover; methanol-tolerant catalyst; passive direct methanol fuel cells; accelerated stress test; trimetallic catalysts
Nivel de accesibilidad
acceso abierto
Condiciones de uso
Atribución (Attribution): En cualquier explotación de la obra autorizada por la licencia será necesario reconocer la autoría (obligatoria en todos los casos). No comercial (Non Commercial): La explotación de la obra queda limitada a usos no comerciales. Sin obras derivadas (No Derivate Works): La autorización para explotar la obra no incluye la posibilidad de crear una obra derivada (traducciones, adaptaciones, etc.).
Repositorio
Repositorio Institucional Abierto (UTN)
Institución
Universidad Tecnológica Nacional
OAI Identificador
oai:ria.utn.edu.ar:20.500.12272/2624
Acceder
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network_name_str Repositorio Institucional Abierto (UTN)
spelling Searching for suitable catalysts for a passive direct methanol fuel cell cathodeAsteazaran, MarianoCespedes, GermanMoreno, MarioBengio, SilvinaCastro Luna, AnaORR; methanol crossover; methanol-tolerant catalyst; passive direct methanol fuel cells; accelerated stress test; trimetallic catalystsTrimetallic PtMRu/C cathode catalysts with M ¼ Co or Fe obtained by an impregnation procedure using ethylene glycol and NaBH4 as reducing agent, with suitable activity for the oxygen reduction reaction (ORR) and improved tolerance to methanol, have been physically characterized by HRTEM, EDS and XPS. The examined nanoparticles have a small particle size and are well spread on the carbon support. Pt is mainly found as Pt(0) and Co, Fe and Ru are mostly oxidized. To study their durability and performance for ORR and methanol tolerance over time, the catalysts were subjected to an electrochemical accelerated stress test (AST), consisting in cycling the potential 2000 times. Polarization curves for ORR with and without methanol were recorded. After the AST the trimetallic PtMRu/C catalysts are able to keep their performance for ORR in the presence of methanol.Fil: Asteazaran, Mariano. UNLP-CONICET. INIFTA (Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas); ArgentinaFil: Cespedes, German. UTN (Universidad Tecnológica Nacional). CITEMA (Centro de Investigación y Desarrollo en Ciencia y Tecnología de Materiales); ArgentinaFil: Moreno, Mario. CAB CNEA (Centro Atómico Bariloche, Comisión Nacional de Energía Atómica). CONICET; ArgentinaFil: Bengio, Silvina. CAB CNEA (Centro Atómico Bariloche, Comisión Nacional de Energía Atómica). CONICET; ArgentinaFil: Castro Luna, Ana. UTN (Universidad Tecnológica Nacional). CITEMA (Centro de Investigación y Desarrollo en Ciencia y Tecnología de Materiales). UNLP-CONICET. INIFTA (Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas); ArgentinaPeer ReviewedElsevier2017-12-28T17:25:56Z2017-12-28T17:25:56Z2015info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/20.500.12272/262410.1016/2015.05.134engenghttp://dx.doi.org/10.1016/j.ijhydene.2015.05.134info:eu-repo/semantics/openAccessAtribución (Attribution): En cualquier explotación de la obra autorizada por la licencia será necesario reconocer la autoría (obligatoria en todos los casos). No comercial (Non Commercial): La explotación de la obra queda limitada a usos no comerciales. Sin obras derivadas (No Derivate Works): La autorización para explotar la obra no incluye la posibilidad de crear una obra derivada (traducciones, adaptaciones, etc.).reponame:Repositorio Institucional Abierto (UTN)instname:Universidad Tecnológica Nacional2025-09-04T11:14:34Zoai:ria.utn.edu.ar:20.500.12272/2624instacron:UTNInstitucionalhttp://ria.utn.edu.ar/Universidad públicaNo correspondehttp://ria.utn.edu.ar/oaigestionria@rec.utn.edu.ar; fsuarez@rec.utn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:a2025-09-04 11:14:34.809Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacionalfalse
dc.title.none.fl_str_mv Searching for suitable catalysts for a passive direct methanol fuel cell cathode
title Searching for suitable catalysts for a passive direct methanol fuel cell cathode
spellingShingle Searching for suitable catalysts for a passive direct methanol fuel cell cathode
Asteazaran, Mariano
ORR; methanol crossover; methanol-tolerant catalyst; passive direct methanol fuel cells; accelerated stress test; trimetallic catalysts
title_short Searching for suitable catalysts for a passive direct methanol fuel cell cathode
title_full Searching for suitable catalysts for a passive direct methanol fuel cell cathode
title_fullStr Searching for suitable catalysts for a passive direct methanol fuel cell cathode
title_full_unstemmed Searching for suitable catalysts for a passive direct methanol fuel cell cathode
title_sort Searching for suitable catalysts for a passive direct methanol fuel cell cathode
dc.creator.none.fl_str_mv Asteazaran, Mariano
Cespedes, German
Moreno, Mario
Bengio, Silvina
Castro Luna, Ana
author Asteazaran, Mariano
author_facet Asteazaran, Mariano
Cespedes, German
Moreno, Mario
Bengio, Silvina
Castro Luna, Ana
author_role author
author2 Cespedes, German
Moreno, Mario
Bengio, Silvina
Castro Luna, Ana
author2_role author
author
author
author
dc.subject.none.fl_str_mv ORR; methanol crossover; methanol-tolerant catalyst; passive direct methanol fuel cells; accelerated stress test; trimetallic catalysts
topic ORR; methanol crossover; methanol-tolerant catalyst; passive direct methanol fuel cells; accelerated stress test; trimetallic catalysts
dc.description.none.fl_txt_mv Trimetallic PtMRu/C cathode catalysts with M ¼ Co or Fe obtained by an impregnation procedure using ethylene glycol and NaBH4 as reducing agent, with suitable activity for the oxygen reduction reaction (ORR) and improved tolerance to methanol, have been physically characterized by HRTEM, EDS and XPS. The examined nanoparticles have a small particle size and are well spread on the carbon support. Pt is mainly found as Pt(0) and Co, Fe and Ru are mostly oxidized. To study their durability and performance for ORR and methanol tolerance over time, the catalysts were subjected to an electrochemical accelerated stress test (AST), consisting in cycling the potential 2000 times. Polarization curves for ORR with and without methanol were recorded. After the AST the trimetallic PtMRu/C catalysts are able to keep their performance for ORR in the presence of methanol.
Fil: Asteazaran, Mariano. UNLP-CONICET. INIFTA (Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas); Argentina
Fil: Cespedes, German. UTN (Universidad Tecnológica Nacional). CITEMA (Centro de Investigación y Desarrollo en Ciencia y Tecnología de Materiales); Argentina
Fil: Moreno, Mario. CAB CNEA (Centro Atómico Bariloche, Comisión Nacional de Energía Atómica). CONICET; Argentina
Fil: Bengio, Silvina. CAB CNEA (Centro Atómico Bariloche, Comisión Nacional de Energía Atómica). CONICET; Argentina
Fil: Castro Luna, Ana. UTN (Universidad Tecnológica Nacional). CITEMA (Centro de Investigación y Desarrollo en Ciencia y Tecnología de Materiales). UNLP-CONICET. INIFTA (Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas); Argentina
Peer Reviewed
description Trimetallic PtMRu/C cathode catalysts with M ¼ Co or Fe obtained by an impregnation procedure using ethylene glycol and NaBH4 as reducing agent, with suitable activity for the oxygen reduction reaction (ORR) and improved tolerance to methanol, have been physically characterized by HRTEM, EDS and XPS. The examined nanoparticles have a small particle size and are well spread on the carbon support. Pt is mainly found as Pt(0) and Co, Fe and Ru are mostly oxidized. To study their durability and performance for ORR and methanol tolerance over time, the catalysts were subjected to an electrochemical accelerated stress test (AST), consisting in cycling the potential 2000 times. Polarization curves for ORR with and without methanol were recorded. After the AST the trimetallic PtMRu/C catalysts are able to keep their performance for ORR in the presence of methanol.
publishDate 2015
dc.date.none.fl_str_mv 2015
2017-12-28T17:25:56Z
2017-12-28T17:25:56Z
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/20.500.12272/2624
10.1016/2015.05.134
url http://hdl.handle.net/20.500.12272/2624
identifier_str_mv 10.1016/2015.05.134
dc.language.none.fl_str_mv eng
eng
language eng
dc.relation.none.fl_str_mv http://dx.doi.org/10.1016/j.ijhydene.2015.05.134
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
Atribución (Attribution): En cualquier explotación de la obra autorizada por la licencia será necesario reconocer la autoría (obligatoria en todos los casos). No comercial (Non Commercial): La explotación de la obra queda limitada a usos no comerciales. Sin obras derivadas (No Derivate Works): La autorización para explotar la obra no incluye la posibilidad de crear una obra derivada (traducciones, adaptaciones, etc.).
eu_rights_str_mv openAccess
rights_invalid_str_mv Atribución (Attribution): En cualquier explotación de la obra autorizada por la licencia será necesario reconocer la autoría (obligatoria en todos los casos). No comercial (Non Commercial): La explotación de la obra queda limitada a usos no comerciales. Sin obras derivadas (No Derivate Works): La autorización para explotar la obra no incluye la posibilidad de crear una obra derivada (traducciones, adaptaciones, etc.).
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositorio Institucional Abierto (UTN)
instname:Universidad Tecnológica Nacional
reponame_str Repositorio Institucional Abierto (UTN)
collection Repositorio Institucional Abierto (UTN)
instname_str Universidad Tecnológica Nacional
repository.name.fl_str_mv Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacional
repository.mail.fl_str_mv gestionria@rec.utn.edu.ar; fsuarez@rec.utn.edu.ar
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score 12.623145

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