Highly-active Pd-Cu electrocatalysts for oxidation of ubiquitous oxygenated fuels

Alexey Serov; Tristan Asset; Monica Padilla; Ivana Matanovic; Ulises Martinez; Aaron Roy; Kateryna Artyushkova; Marian Chatenet; Frederic Maillard; Domnik Bayer; Carsten Cremers; Plamen Atanassov

doi:10.1016/j.apcatb.2016.03.016

Highly-active Pd-Cu electrocatalysts for oxidation of ubiquitous oxygenated fuels

Alexey Serov, Tristan Asset, Monica Padilla, Ivana Matanovic, Ulises Martinez, Aaron Roy, Kateryna Artyushkova, Marian Chatenet, Frederic Maillard, Domnik Bayer, Carsten Cremers, Plamen Atanassov

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

68 Scopus citations

Abstract

Nanostructured palladium-copper electrocatalysts with Pd:Cu ratios of 1:3, 1:1, and 3:1 were synthesized using a Sacrificial Support Method (SSM) in combination with the thermal reduction of metal precursors. The materials were comprehensively characterized by X-ray diffraction (XRD), X-ray Photoelectron Spectroscopy (XPS), Scanning and Transmission Electron Microscopy (SEM and TEM), surface area measurements (Brunauer-Emmett-Teller, BET) and Differential Electrochemical Mass Spectroscopy (DEMS). The SSM method enables the preparation of nano-sized unsupported Pd-Cu catalysts with uniformly-distributed particles and high surface area, in the range of 40 m² g_catalyst^-1. Their catalytic activity for the electrooxidation of several alcohols (methanol, ethanol, ethylene glycol and glycerol) was investigated in alkaline media. In situ Infrared Reflection Adsorption Spectroscopy (IRRAS) and Density Functional Theory (DFT) calculations were used in order to understand the mechanism of the various alcohols electrooxidation reactions.

Original language	English
Pages (from-to)	76-85
Number of pages	10
Journal	Applied Catalysis B: Environmental
Volume	191
DOIs	https://doi.org/10.1016/j.apcatb.2016.03.016
State	Published - Aug 15 2016
Externally published	Yes

Funding

M.C. thanks the Institut Universitaire de France (IUF) for its support. P.A. and M.C. thank Région Rhône-Alpes and Grenoble-INP for the mobility grants they allocated (CMIRA Accueil PRO 2014). Computational work was performed using the computational resources of LANL, supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC52-06NA25396 and EMSL, a national scientific user facility sponsored by the Department of Energy’s Office of Biological and Environmental Research and located at Pacific Northwest National Laboratory This paper has been designated LA-UR 14-26546. C.C. and D.B. thank the German Federal Ministry of Defense for the financial support in parts of their work.

Funders	Funder number
German Federal Ministry of Defense
U.S. Department of Energy	DE-AC52-06NA25396
Office of Science
Biological and Environmental Research

Keywords

Alcohols electrooxidation
Alkaline
Fuel cell
Palladium
Sacrificial Support Method (SSM)

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.apcatb.2016.03.016

Cite this

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title = "Highly-active Pd-Cu electrocatalysts for oxidation of ubiquitous oxygenated fuels",

abstract = "Nanostructured palladium-copper electrocatalysts with Pd:Cu ratios of 1:3, 1:1, and 3:1 were synthesized using a Sacrificial Support Method (SSM) in combination with the thermal reduction of metal precursors. The materials were comprehensively characterized by X-ray diffraction (XRD), X-ray Photoelectron Spectroscopy (XPS), Scanning and Transmission Electron Microscopy (SEM and TEM), surface area measurements (Brunauer-Emmett-Teller, BET) and Differential Electrochemical Mass Spectroscopy (DEMS). The SSM method enables the preparation of nano-sized unsupported Pd-Cu catalysts with uniformly-distributed particles and high surface area, in the range of 40 m2 gcatalyst-1. Their catalytic activity for the electrooxidation of several alcohols (methanol, ethanol, ethylene glycol and glycerol) was investigated in alkaline media. In situ Infrared Reflection Adsorption Spectroscopy (IRRAS) and Density Functional Theory (DFT) calculations were used in order to understand the mechanism of the various alcohols electrooxidation reactions.",

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AU - Martinez, Ulises

AU - Roy, Aaron

AU - Artyushkova, Kateryna

AU - Chatenet, Marian

AU - Maillard, Frederic

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AU - Cremers, Carsten

AU - Atanassov, Plamen

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AB - Nanostructured palladium-copper electrocatalysts with Pd:Cu ratios of 1:3, 1:1, and 3:1 were synthesized using a Sacrificial Support Method (SSM) in combination with the thermal reduction of metal precursors. The materials were comprehensively characterized by X-ray diffraction (XRD), X-ray Photoelectron Spectroscopy (XPS), Scanning and Transmission Electron Microscopy (SEM and TEM), surface area measurements (Brunauer-Emmett-Teller, BET) and Differential Electrochemical Mass Spectroscopy (DEMS). The SSM method enables the preparation of nano-sized unsupported Pd-Cu catalysts with uniformly-distributed particles and high surface area, in the range of 40 m2 gcatalyst-1. Their catalytic activity for the electrooxidation of several alcohols (methanol, ethanol, ethylene glycol and glycerol) was investigated in alkaline media. In situ Infrared Reflection Adsorption Spectroscopy (IRRAS) and Density Functional Theory (DFT) calculations were used in order to understand the mechanism of the various alcohols electrooxidation reactions.

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Highly-active Pd-Cu electrocatalysts for oxidation of ubiquitous oxygenated fuels

Abstract

Funding

Keywords

UN SDGs

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