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Morphological Effect of Pd Catalyst on Ethanol Electro-Oxidation Reaction

In the present study, three different structures with preferentially exposed crystal faces were supported on commercial carbon black by the polyol method (nanoparticles (NP/C), nanobars (NB/C) and nanorods (NR/C)). The electrocatalysts were characterized by XRD, TEM, TGA and cyclic voltammetry at th...

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Autores principales: Cerritos, Raúl Carrera, Guerra-Balcázar, Minerva, Ramírez, Rosalba Fuentes, Ledesma-García, Janet, Arriaga, Luis Gerardo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2012
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5449025/
http://dx.doi.org/10.3390/ma5091686
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author Cerritos, Raúl Carrera
Guerra-Balcázar, Minerva
Ramírez, Rosalba Fuentes
Ledesma-García, Janet
Arriaga, Luis Gerardo
author_facet Cerritos, Raúl Carrera
Guerra-Balcázar, Minerva
Ramírez, Rosalba Fuentes
Ledesma-García, Janet
Arriaga, Luis Gerardo
author_sort Cerritos, Raúl Carrera
collection PubMed
description In the present study, three different structures with preferentially exposed crystal faces were supported on commercial carbon black by the polyol method (nanoparticles (NP/C), nanobars (NB/C) and nanorods (NR/C)). The electrocatalysts were characterized by XRD, TEM, TGA and cyclic voltammetry at three different ethanol concentrations. Considerable differences were found in terms of catalytic electroactivity. At all ethanol concentrations, the trend observed for the ethanol oxidation peak potential was preserved as follows: NB/C < NP/C< NR/C < commercial Pd/C. This result indicates that, from a thermodynamics point of view, the NB/C catalyst enclosed by Pd(100) facets presented the highest activity with respect to ethanol electro-oxidation among all of the catalysts studied.
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spelling pubmed-54490252017-07-28 Morphological Effect of Pd Catalyst on Ethanol Electro-Oxidation Reaction Cerritos, Raúl Carrera Guerra-Balcázar, Minerva Ramírez, Rosalba Fuentes Ledesma-García, Janet Arriaga, Luis Gerardo Materials (Basel) Article In the present study, three different structures with preferentially exposed crystal faces were supported on commercial carbon black by the polyol method (nanoparticles (NP/C), nanobars (NB/C) and nanorods (NR/C)). The electrocatalysts were characterized by XRD, TEM, TGA and cyclic voltammetry at three different ethanol concentrations. Considerable differences were found in terms of catalytic electroactivity. At all ethanol concentrations, the trend observed for the ethanol oxidation peak potential was preserved as follows: NB/C < NP/C< NR/C < commercial Pd/C. This result indicates that, from a thermodynamics point of view, the NB/C catalyst enclosed by Pd(100) facets presented the highest activity with respect to ethanol electro-oxidation among all of the catalysts studied. MDPI 2012-09-19 /pmc/articles/PMC5449025/ http://dx.doi.org/10.3390/ma5091686 Text en © 2012 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Article
Cerritos, Raúl Carrera
Guerra-Balcázar, Minerva
Ramírez, Rosalba Fuentes
Ledesma-García, Janet
Arriaga, Luis Gerardo
Morphological Effect of Pd Catalyst on Ethanol Electro-Oxidation Reaction
title Morphological Effect of Pd Catalyst on Ethanol Electro-Oxidation Reaction
title_full Morphological Effect of Pd Catalyst on Ethanol Electro-Oxidation Reaction
title_fullStr Morphological Effect of Pd Catalyst on Ethanol Electro-Oxidation Reaction
title_full_unstemmed Morphological Effect of Pd Catalyst on Ethanol Electro-Oxidation Reaction
title_short Morphological Effect of Pd Catalyst on Ethanol Electro-Oxidation Reaction
title_sort morphological effect of pd catalyst on ethanol electro-oxidation reaction
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5449025/
http://dx.doi.org/10.3390/ma5091686
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