Characterization and electrocatalytic properties of sonochemical synthesized PdAg nanoparticles

Andrés Godínez-García; Juan Francisco Pérez-Robles; Hader Vladimir Martínez-Tejada; Omar Solorza-Feria

doi:10.1016/j.matchemphys.2012.03.105

Characterization and electrocatalytic properties of sonochemical synthesized PdAg nanoparticles

Andrés Godínez-García, Juan Francisco Pérez-Robles, Hader Vladimir Martínez-Tejada, Omar Solorza-Feria

Research output: Contribution to journal › Article in an indexed scientific journal › peer-review

20 Scopus citations

Abstract

High intensity ultrasound was used in the synthesis of PdAg nanoparticles. PdAg nanoparticles were characterized by X-ray diffraction (XRD), atomic force microscopy (AFM), energy dispersive spectroscopy (EDS), scanning transmission electron microscopy (STEM) and high-resolution transmission electron microscopy (HRTEM). Catalytic properties for oxygen reduction reaction (ORR) were determined by electrochemical techniques of cyclic voltammetry (CV) and thin-film rotating disk electrode (TF-RDE). Finally the electrocatalyst was tested as a cathode in a single polymer electrolyte membrane fuel cell (PEMFC). Sonochemical synthesis (SS) decreased the overpotential required for the ORR and increased the double-layer capacitance (DLC) respect to the sodium borohydride reduction method due to a better distribution on vulcan carbon support. The electrocatalytic activity of the nanometric bimetallic electrocatalyst for the ORR in acid media showed a favorable multielectron charge transfer process (n = 4e ^-) to water formation. The performance of the membrane electrode assembly (MEA) prepared with dispersed PdAg/C as a cathode catalyst in a single PEMFC is lower in comparison to platinum.

Original language	English
Pages (from-to)	1013-1019
Number of pages	7
Journal	Materials Chemistry and Physics
Volume	134
Issue number	2-3
DOIs	https://doi.org/10.1016/j.matchemphys.2012.03.105
State	Published - 15 Jun 2012

Bibliographical note

Funding Information:
This work was partially supported by a Grant of National Science and Technology Council of Mexico, CONACYT (Ref. 83247). One of the authors (A.G.G.) would like to thank CONACYT for providing him the Ph.D. fellowship and Luzma Avilés-Arellano for her technical support.

Keywords

Alloys
Chemical synthesis
Electrochemical properties
Electrochemical techniques

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10.1016/j.matchemphys.2012.03.105

Cite this

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title = "Characterization and electrocatalytic properties of sonochemical synthesized PdAg nanoparticles",

abstract = "High intensity ultrasound was used in the synthesis of PdAg nanoparticles. PdAg nanoparticles were characterized by X-ray diffraction (XRD), atomic force microscopy (AFM), energy dispersive spectroscopy (EDS), scanning transmission electron microscopy (STEM) and high-resolution transmission electron microscopy (HRTEM). Catalytic properties for oxygen reduction reaction (ORR) were determined by electrochemical techniques of cyclic voltammetry (CV) and thin-film rotating disk electrode (TF-RDE). Finally the electrocatalyst was tested as a cathode in a single polymer electrolyte membrane fuel cell (PEMFC). Sonochemical synthesis (SS) decreased the overpotential required for the ORR and increased the double-layer capacitance (DLC) respect to the sodium borohydride reduction method due to a better distribution on vulcan carbon support. The electrocatalytic activity of the nanometric bimetallic electrocatalyst for the ORR in acid media showed a favorable multielectron charge transfer process (n = 4e -) to water formation. The performance of the membrane electrode assembly (MEA) prepared with dispersed PdAg/C as a cathode catalyst in a single PEMFC is lower in comparison to platinum.",

keywords = "Alloys, Chemical synthesis, Electrochemical properties, Electrochemical techniques",

author = "Andr{\'e}s God{\'i}nez-Garc{\'i}a and P{\'e}rez-Robles, {Juan Francisco} and Mart{\'i}nez-Tejada, {Hader Vladimir} and Omar Solorza-Feria",

note = "Funding Information: This work was partially supported by a Grant of National Science and Technology Council of Mexico, CONACYT (Ref. 83247). One of the authors (A.G.G.) would like to thank CONACYT for providing him the Ph.D. fellowship and Luzma Avil{\'e}s-Arellano for her technical support.",

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Characterization and electrocatalytic properties of sonochemical synthesized PdAg nanoparticles. / Godínez-García, Andrés; Pérez-Robles, Juan Francisco; Martínez-Tejada, Hader Vladimir et al.
In: Materials Chemistry and Physics, Vol. 134, No. 2-3, 15.06.2012, p. 1013-1019.

Research output: Contribution to journal › Article in an indexed scientific journal › peer-review

TY - JOUR

T1 - Characterization and electrocatalytic properties of sonochemical synthesized PdAg nanoparticles

AU - Godínez-García, Andrés

AU - Pérez-Robles, Juan Francisco

AU - Martínez-Tejada, Hader Vladimir

AU - Solorza-Feria, Omar

N1 - Funding Information: This work was partially supported by a Grant of National Science and Technology Council of Mexico, CONACYT (Ref. 83247). One of the authors (A.G.G.) would like to thank CONACYT for providing him the Ph.D. fellowship and Luzma Avilés-Arellano for her technical support.

PY - 2012/6/15

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N2 - High intensity ultrasound was used in the synthesis of PdAg nanoparticles. PdAg nanoparticles were characterized by X-ray diffraction (XRD), atomic force microscopy (AFM), energy dispersive spectroscopy (EDS), scanning transmission electron microscopy (STEM) and high-resolution transmission electron microscopy (HRTEM). Catalytic properties for oxygen reduction reaction (ORR) were determined by electrochemical techniques of cyclic voltammetry (CV) and thin-film rotating disk electrode (TF-RDE). Finally the electrocatalyst was tested as a cathode in a single polymer electrolyte membrane fuel cell (PEMFC). Sonochemical synthesis (SS) decreased the overpotential required for the ORR and increased the double-layer capacitance (DLC) respect to the sodium borohydride reduction method due to a better distribution on vulcan carbon support. The electrocatalytic activity of the nanometric bimetallic electrocatalyst for the ORR in acid media showed a favorable multielectron charge transfer process (n = 4e -) to water formation. The performance of the membrane electrode assembly (MEA) prepared with dispersed PdAg/C as a cathode catalyst in a single PEMFC is lower in comparison to platinum.

AB - High intensity ultrasound was used in the synthesis of PdAg nanoparticles. PdAg nanoparticles were characterized by X-ray diffraction (XRD), atomic force microscopy (AFM), energy dispersive spectroscopy (EDS), scanning transmission electron microscopy (STEM) and high-resolution transmission electron microscopy (HRTEM). Catalytic properties for oxygen reduction reaction (ORR) were determined by electrochemical techniques of cyclic voltammetry (CV) and thin-film rotating disk electrode (TF-RDE). Finally the electrocatalyst was tested as a cathode in a single polymer electrolyte membrane fuel cell (PEMFC). Sonochemical synthesis (SS) decreased the overpotential required for the ORR and increased the double-layer capacitance (DLC) respect to the sodium borohydride reduction method due to a better distribution on vulcan carbon support. The electrocatalytic activity of the nanometric bimetallic electrocatalyst for the ORR in acid media showed a favorable multielectron charge transfer process (n = 4e -) to water formation. The performance of the membrane electrode assembly (MEA) prepared with dispersed PdAg/C as a cathode catalyst in a single PEMFC is lower in comparison to platinum.

KW - Alloys

KW - Chemical synthesis

KW - Electrochemical properties

KW - Electrochemical techniques

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M3 - Artículo en revista científica indexada

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SN - 0254-0584

VL - 134

SP - 1013

EP - 1019

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

IS - 2-3

ER -

Characterization and electrocatalytic properties of sonochemical synthesized PdAg nanoparticles

Abstract

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Keywords

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