Nanocatalysts for ethanol oxidation: Synthesis and characterisation

Carbon-supported binary PtSn/C and ternary PtSnNi/C catalysts were prepared for the electro-oxidation of ethanol. The carbon-supported nanoparticles were synthesised by employing a modified polyol methodology and characterised in terms of structure, morphology and composition by using XRD, EDX and T...

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Autores principales: Bonesi, Alejandro Roberto, Triaca, Walter Enrique, Castro Luna Berenguer, Ana María del Carmen
Formato: Articulo
Lenguaje:Inglés
Publicado: 2009
Materias:
Química
Catalyst
Ethanol
Nickel
Platinum
Polyol
Tin
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/82718
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-82718
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
Catalyst
Ethanol
Nickel
Platinum
Polyol
Tin
spellingShingle Química
Catalyst
Ethanol
Nickel
Platinum
Polyol
Tin
Bonesi, Alejandro Roberto
Triaca, Walter Enrique
Castro Luna Berenguer, Ana María del Carmen
Nanocatalysts for ethanol oxidation: Synthesis and characterisation
topic_facet Química
Catalyst
Ethanol
Nickel
Platinum
Polyol
Tin
description Carbon-supported binary PtSn/C and ternary PtSnNi/C catalysts were prepared for the electro-oxidation of ethanol. The carbon-supported nanoparticles were synthesised by employing a modified polyol methodology and characterised in terms of structure, morphology and composition by using XRD, EDX and TEM techniques. Their electrocatalytic behaviour for ethanol oxidation (EO) was investigated by employing a disccomposite electrode covered by a thin layer of catalyst imbedded in a Nafion polymer electrolyte film. An enhancement of the EO through a negative shift of the onset oxidation potential and higher current density at constant potentials were observed on the PtSnNi/C electrodes as compared to those for PtSn/C electrodes. The temperature was changed in the range 40 °C ≤ t ≤ 80 °C, and the variation of the activation energy calculated by linear regression of the Arrhenius plots.
format Articulo
Articulo
author Bonesi, Alejandro Roberto
Triaca, Walter Enrique
Castro Luna Berenguer, Ana María del Carmen
author_facet Bonesi, Alejandro Roberto
Triaca, Walter Enrique
Castro Luna Berenguer, Ana María del Carmen
author_sort Bonesi, Alejandro Roberto
title Nanocatalysts for ethanol oxidation: Synthesis and characterisation
title_short Nanocatalysts for ethanol oxidation: Synthesis and characterisation
title_full Nanocatalysts for ethanol oxidation: Synthesis and characterisation
title_fullStr Nanocatalysts for ethanol oxidation: Synthesis and characterisation
title_full_unstemmed Nanocatalysts for ethanol oxidation: Synthesis and characterisation
title_sort nanocatalysts for ethanol oxidation: synthesis and characterisation
publishDate 2009
url http://sedici.unlp.edu.ar/handle/10915/82718
work_keys_str_mv AT bonesialejandroroberto nanocatalystsforethanoloxidationsynthesisandcharacterisation
AT triacawalterenrique nanocatalystsforethanoloxidationsynthesisandcharacterisation
AT castrolunaberengueranamariadelcarmen nanocatalystsforethanoloxidationsynthesisandcharacterisation
bdutipo_str Repositorios
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