Ethanol vs. glycerol: Understanding the lack of correlation between the oxidation currents and the production of CO2 on Pt nanoparticles
- Autores
- Martins, Cauê A.; Fernández, Pablo Sebastián; Troiani, Horacio E.; Martins, María Elisa; Camara, Giuseppe
- Año de publicación
- 2014
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- In the last decades ethanol and glycerol arose as potential fuels for fuel cells. Based on their importance to the field and molecular similarity, here we compare the electrooxidation of ethanol and glycerol on platinum nanoparticles as an attempt to learn about their differences and similarities in terms of oxidation pathways. By using in situ FTIR we interpret the electrochemical behavior in terms of different pathways involving the production of carboxylic acids for both alcohols. For ethanol, CO2 is produced from CO in a direct pathway involving several electrons, while acetic acid is produced through a parallel pathway. Conversely, for glycerol CO2 seems to be mainly produced through a sequential pathway involving carboxylic acids, each one involving few electrons. The results suggest that glycerol demands surfaces that speed up the oxidation of partially oxidized species formed at intermediate potentials.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas - Materia
-
Química
Direct alcohol fuel cells
Ethanol
Glycerin
Oxidation pathways
Platinum nanomaterials - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/85566
Ver los metadatos del registro completo
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Ethanol vs. glycerol: Understanding the lack of correlation between the oxidation currents and the production of CO2 on Pt nanoparticlesMartins, Cauê A.Fernández, Pablo SebastiánTroiani, Horacio E.Martins, María ElisaCamara, GiuseppeQuímicaDirect alcohol fuel cellsEthanolGlycerinOxidation pathwaysPlatinum nanomaterialsIn the last decades ethanol and glycerol arose as potential fuels for fuel cells. Based on their importance to the field and molecular similarity, here we compare the electrooxidation of ethanol and glycerol on platinum nanoparticles as an attempt to learn about their differences and similarities in terms of oxidation pathways. By using in situ FTIR we interpret the electrochemical behavior in terms of different pathways involving the production of carboxylic acids for both alcohols. For ethanol, CO2 is produced from CO in a direct pathway involving several electrons, while acetic acid is produced through a parallel pathway. Conversely, for glycerol CO2 seems to be mainly produced through a sequential pathway involving carboxylic acids, each one involving few electrons. The results suggest that glycerol demands surfaces that speed up the oxidation of partially oxidized species formed at intermediate potentials.Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas2014info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf231-236http://sedici.unlp.edu.ar/handle/10915/85566enginfo:eu-repo/semantics/altIdentifier/issn/1572-6657info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jelechem.2014.01.027info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:16:21Zoai:sedici.unlp.edu.ar:10915/85566Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:16:21.344SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Ethanol vs. glycerol: Understanding the lack of correlation between the oxidation currents and the production of CO2 on Pt nanoparticles |
title |
Ethanol vs. glycerol: Understanding the lack of correlation between the oxidation currents and the production of CO2 on Pt nanoparticles |
spellingShingle |
Ethanol vs. glycerol: Understanding the lack of correlation between the oxidation currents and the production of CO2 on Pt nanoparticles Martins, Cauê A. Química Direct alcohol fuel cells Ethanol Glycerin Oxidation pathways Platinum nanomaterials |
title_short |
Ethanol vs. glycerol: Understanding the lack of correlation between the oxidation currents and the production of CO2 on Pt nanoparticles |
title_full |
Ethanol vs. glycerol: Understanding the lack of correlation between the oxidation currents and the production of CO2 on Pt nanoparticles |
title_fullStr |
Ethanol vs. glycerol: Understanding the lack of correlation between the oxidation currents and the production of CO2 on Pt nanoparticles |
title_full_unstemmed |
Ethanol vs. glycerol: Understanding the lack of correlation between the oxidation currents and the production of CO2 on Pt nanoparticles |
title_sort |
Ethanol vs. glycerol: Understanding the lack of correlation between the oxidation currents and the production of CO2 on Pt nanoparticles |
dc.creator.none.fl_str_mv |
Martins, Cauê A. Fernández, Pablo Sebastián Troiani, Horacio E. Martins, María Elisa Camara, Giuseppe |
author |
Martins, Cauê A. |
author_facet |
Martins, Cauê A. Fernández, Pablo Sebastián Troiani, Horacio E. Martins, María Elisa Camara, Giuseppe |
author_role |
author |
author2 |
Fernández, Pablo Sebastián Troiani, Horacio E. Martins, María Elisa Camara, Giuseppe |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
Química Direct alcohol fuel cells Ethanol Glycerin Oxidation pathways Platinum nanomaterials |
topic |
Química Direct alcohol fuel cells Ethanol Glycerin Oxidation pathways Platinum nanomaterials |
dc.description.none.fl_txt_mv |
In the last decades ethanol and glycerol arose as potential fuels for fuel cells. Based on their importance to the field and molecular similarity, here we compare the electrooxidation of ethanol and glycerol on platinum nanoparticles as an attempt to learn about their differences and similarities in terms of oxidation pathways. By using in situ FTIR we interpret the electrochemical behavior in terms of different pathways involving the production of carboxylic acids for both alcohols. For ethanol, CO2 is produced from CO in a direct pathway involving several electrons, while acetic acid is produced through a parallel pathway. Conversely, for glycerol CO2 seems to be mainly produced through a sequential pathway involving carboxylic acids, each one involving few electrons. The results suggest that glycerol demands surfaces that speed up the oxidation of partially oxidized species formed at intermediate potentials. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas |
description |
In the last decades ethanol and glycerol arose as potential fuels for fuel cells. Based on their importance to the field and molecular similarity, here we compare the electrooxidation of ethanol and glycerol on platinum nanoparticles as an attempt to learn about their differences and similarities in terms of oxidation pathways. By using in situ FTIR we interpret the electrochemical behavior in terms of different pathways involving the production of carboxylic acids for both alcohols. For ethanol, CO2 is produced from CO in a direct pathway involving several electrons, while acetic acid is produced through a parallel pathway. Conversely, for glycerol CO2 seems to be mainly produced through a sequential pathway involving carboxylic acids, each one involving few electrons. The results suggest that glycerol demands surfaces that speed up the oxidation of partially oxidized species formed at intermediate potentials. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo 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://sedici.unlp.edu.ar/handle/10915/85566 |
url |
http://sedici.unlp.edu.ar/handle/10915/85566 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/issn/1572-6657 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jelechem.2014.01.027 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
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openAccess |
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http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
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application/pdf 231-236 |
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