Carbon supported Au-Pd-PdO with low metal loading for electro-oxidation of methanol in alkaline medium

V. H. Ramos-Sánchez; Diana Brito-Picciotto; Ramón Gómez-Vargas; David Chávez-Flores; Edgar Valenzuela

doi:10.14447/jnmes.v17i3.401

Carbon supported Au-Pd-PdO with low metal loading for electro-oxidation of methanol in alkaline medium

V. H. Ramos-Sánchez, Diana Brito-Picciotto, Ramón Gómez-Vargas, David Chávez-Flores, Edgar Valenzuela

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

The present work examined two Pd-based alloys supported on carbon: AuPd and Au2Pd, both synthesized by chemical reduction with NaBH4. The low Au-Pd loading electrocatalysts were physicochemically and electrochemically characterized. Electrocatalytic activity for methanol oxidation was found exclusively in AuPd/C. However, it was revealed that such reaction was promoted by PdO occurring in the actual active phase of the supported electrocatalyst, through the formation of Au-Pd-PdO ensemble sites.

Original language	English (US)
Pages (from-to)	133-138
Number of pages	6
Journal	Journal of New Materials for Electrochemical Systems
Volume	17
Issue number	3
DOIs	https://doi.org/10.14447/jnmes.v17i3.401
State	Published - 2014
Externally published	Yes

Keywords

Alkaline direct alcohol fuel cell
Au-Pd nanoparticles
Bimetallic alloy
Methanol electro-oxidation

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
General Materials Science
Electrochemistry

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10.14447/jnmes.v17i3.401

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title = "Carbon supported Au-Pd-PdO with low metal loading for electro-oxidation of methanol in alkaline medium",

abstract = "The present work examined two Pd-based alloys supported on carbon: AuPd and Au2Pd, both synthesized by chemical reduction with NaBH4. The low Au-Pd loading electrocatalysts were physicochemically and electrochemically characterized. Electrocatalytic activity for methanol oxidation was found exclusively in AuPd/C. However, it was revealed that such reaction was promoted by PdO occurring in the actual active phase of the supported electrocatalyst, through the formation of Au-Pd-PdO ensemble sites.",

keywords = "Alkaline direct alcohol fuel cell, Au-Pd nanoparticles, Bimetallic alloy, Methanol electro-oxidation",

author = "Ramos-S{\'a}nchez, {V. H.} and Diana Brito-Picciotto and Ram{\'o}n G{\'o}mez-Vargas and David Ch{\'a}vez-Flores and Edgar Valenzuela",

year = "2014",

doi = "10.14447/jnmes.v17i3.401",

language = "English (US)",

volume = "17",

pages = "133--138",

journal = "Journal of New Materials for Electrochemical Systems",

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TY - JOUR

T1 - Carbon supported Au-Pd-PdO with low metal loading for electro-oxidation of methanol in alkaline medium

AU - Ramos-Sánchez, V. H.

AU - Brito-Picciotto, Diana

AU - Gómez-Vargas, Ramón

AU - Chávez-Flores, David

AU - Valenzuela, Edgar

PY - 2014

Y1 - 2014

N2 - The present work examined two Pd-based alloys supported on carbon: AuPd and Au2Pd, both synthesized by chemical reduction with NaBH4. The low Au-Pd loading electrocatalysts were physicochemically and electrochemically characterized. Electrocatalytic activity for methanol oxidation was found exclusively in AuPd/C. However, it was revealed that such reaction was promoted by PdO occurring in the actual active phase of the supported electrocatalyst, through the formation of Au-Pd-PdO ensemble sites.

AB - The present work examined two Pd-based alloys supported on carbon: AuPd and Au2Pd, both synthesized by chemical reduction with NaBH4. The low Au-Pd loading electrocatalysts were physicochemically and electrochemically characterized. Electrocatalytic activity for methanol oxidation was found exclusively in AuPd/C. However, it was revealed that such reaction was promoted by PdO occurring in the actual active phase of the supported electrocatalyst, through the formation of Au-Pd-PdO ensemble sites.

KW - Alkaline direct alcohol fuel cell

KW - Au-Pd nanoparticles

KW - Bimetallic alloy

KW - Methanol electro-oxidation

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JO - Journal of New Materials for Electrochemical Systems

JF - Journal of New Materials for Electrochemical Systems

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Carbon supported Au-Pd-PdO with low metal loading for electro-oxidation of methanol in alkaline medium

Abstract

Keywords

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