Ethanol vs. glycerol: Understanding the lack of correlation between the oxidation currents and the production of CO2 on Pt nanoparticles

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...

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Detalles Bibliográficos
Autores principales: Martins, Cauê A., Fernández, Pablo Sebastián, Troiani, Horacio E., Martins, María Elisa, Camara, Giuseppe
Formato: Articulo
Lenguaje:Inglés
Publicado: 2014
Materias:
Química
Direct alcohol fuel cells
Ethanol
Glycerin
Oxidation pathways
Platinum nanomaterials
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/85566
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-85566
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
Direct alcohol fuel cells
Ethanol
Glycerin
Oxidation pathways
Platinum nanomaterials
spellingShingle Química
Direct alcohol fuel cells
Ethanol
Glycerin
Oxidation pathways
Platinum nanomaterials
Martins, Cauê A.
Fernández, Pablo Sebastián
Troiani, Horacio E.
Martins, María Elisa
Camara, Giuseppe
Ethanol vs. glycerol: Understanding the lack of correlation between the oxidation currents and the production of CO2 on Pt nanoparticles
topic_facet Química
Direct alcohol fuel cells
Ethanol
Glycerin
Oxidation pathways
Platinum nanomaterials
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.
format Articulo
Articulo
author Martins, Cauê A.
Fernández, Pablo Sebastián
Troiani, Horacio E.
Martins, María Elisa
Camara, Giuseppe
author_facet Martins, Cauê A.
Fernández, Pablo Sebastián
Troiani, Horacio E.
Martins, María Elisa
Camara, Giuseppe
author_sort Martins, Cauê A.
title Ethanol vs. glycerol: Understanding the lack of correlation between the oxidation currents and the production of CO2 on Pt nanoparticles
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
publishDate 2014
url http://sedici.unlp.edu.ar/handle/10915/85566
work_keys_str_mv AT martinscauea ethanolvsglycerolunderstandingthelackofcorrelationbetweentheoxidationcurrentsandtheproductionofco2onptnanoparticles
AT fernandezpablosebastian ethanolvsglycerolunderstandingthelackofcorrelationbetweentheoxidationcurrentsandtheproductionofco2onptnanoparticles
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AT martinsmariaelisa ethanolvsglycerolunderstandingthelackofcorrelationbetweentheoxidationcurrentsandtheproductionofco2onptnanoparticles
AT camaragiuseppe ethanolvsglycerolunderstandingthelackofcorrelationbetweentheoxidationcurrentsandtheproductionofco2onptnanoparticles
bdutipo_str Repositorios
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