Morphological effect of Pd catalyst on ethanol electro-oxidation reaction

Raúl Carrera Cerritos; Minerva Guerra-Balcázar; Rosalba Fuentes Ramírez; Janet Ledesma-García; Luis Gerardo Arriaga

doi:10.3390/ma5091686

Morphological effect of Pd catalyst on ethanol electro-oxidation reaction

Raúl Carrera Cerritos, Minerva Guerra-Balcázar, Rosalba Fuentes Ramírez, Janet Ledesma-García, Luis Gerardo Arriaga

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56 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	1686-1697
Number of pages	12
Journal	Materials
Volume	5
Issue number	9
DOIs	https://doi.org/10.3390/ma5091686
State	Published - 2012
Externally published	Yes

Keywords

Ethanol electro-oxidation
Pd nanobars
Pd nanoparticles
Pd nanorods

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title = "Morphological effect of Pd catalyst on ethanol electro-oxidation reaction",

abstract = "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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T1 - Morphological effect of Pd catalyst on ethanol electro-oxidation reaction

AU - Cerritos, Raúl Carrera

AU - Guerra-Balcázar, Minerva

AU - Ramírez, Rosalba Fuentes

AU - Ledesma-García, Janet

AU - Arriaga, Luis Gerardo

PY - 2012

Y1 - 2012

N2 - 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.

AB - 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.

KW - Ethanol electro-oxidation

KW - Pd nanobars

KW - Pd nanoparticles

KW - Pd nanorods

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U2 - 10.3390/ma5091686

DO - 10.3390/ma5091686

M3 - Artículo

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VL - 5

SP - 1686

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JO - Materials

JF - Materials

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ER -

Morphological effect of Pd catalyst on ethanol electro-oxidation reaction

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