New insights into the catalytic activity of gold nanoparticles for CO oxidation in electrochemical media

Paramaconi Rodriguez; Daniela Plana; David J Fermin; Marc T.M. Koper

doi:10.1016/j.jcat.2013.11.020

New insights into the catalytic activity of gold nanoparticles for CO oxidation in electrochemical media

Paramaconi Rodriguez^*, Daniela Plana, David J Fermin, Marc T.M. Koper

^*Corresponding author for this work

Research output: Contribution to journal › Article (Academic Journal) › peer-review

66 Citations (Scopus)

Abstract

This study reports the interaction between metal oxides and gold in acidic media and its effect on the electrochemical oxidation of carbon monoxide. We describe the oxidation of CO in acidic media on Au nanoparticles of 3 and 7 nm on different oxide supports, diamond and carbon electrodes. In addition, the effect of a TiOx support on Au nanoparticles was mimicked by supporting TiOx nanoparticles on bulk gold. The comparison of these two systems strongly suggests that electronic interactions between Au and TiOx, rather than Au nanoparticle size effects, are the driving force of the catalytic activity in Au-TiOx. (C) 2013 Elsevier Inc. All rights reserved.

Original language	English
Pages (from-to)	182-189
Number of pages	8
Journal	Journal of Catalysis
Volume	311
DOIs	https://doi.org/10.1016/j.jcat.2013.11.020
Publication status	Published - Mar 2014

Keywords

Gold catalysis
Carbon monoxide
Electrochemistry
Nanoparticles
Metal oxides
SCANNING-TUNNELING-MICROSCOPY
SINGLE-CRYSTAL SURFACES
METAL-PARTICLE SIZE
CARBON-MONOXIDE
SUPPORTED GOLD
AU NANOPARTICLES
OXYGEN REDUCTION
TITANIUM-OXIDE
CLUSTERS
ADSORPTION

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Electrochemical Oxidation of Low Molecular Weight Alkanes to Liquid Fuels at Molecular Interfaces
Fermin, D. J. (Principal Investigator)
1/12/12 → 1/10/15
Project: Research

Professor David J Fermin
- David.Ferminbristol.acuk
- School of Chemistry - Professor of Electrochemistry
- Cabot Institute for the Environment
- Materials for Energy
- Soft Matter, Colloids and Materials
Person: Academic , Member

Cite this

@article{c6fad9c9200148c787bb538e8ede0272,

title = "New insights into the catalytic activity of gold nanoparticles for CO oxidation in electrochemical media",

abstract = "This study reports the interaction between metal oxides and gold in acidic media and its effect on the electrochemical oxidation of carbon monoxide. We describe the oxidation of CO in acidic media on Au nanoparticles of 3 and 7 nm on different oxide supports, diamond and carbon electrodes. In addition, the effect of a TiOx support on Au nanoparticles was mimicked by supporting TiOx nanoparticles on bulk gold. The comparison of these two systems strongly suggests that electronic interactions between Au and TiOx, rather than Au nanoparticle size effects, are the driving force of the catalytic activity in Au-TiOx. (C) 2013 Elsevier Inc. All rights reserved.",

keywords = "Gold catalysis, Carbon monoxide, Electrochemistry, Nanoparticles, Metal oxides, SCANNING-TUNNELING-MICROSCOPY, SINGLE-CRYSTAL SURFACES, METAL-PARTICLE SIZE, CARBON-MONOXIDE, SUPPORTED GOLD, AU NANOPARTICLES, OXYGEN REDUCTION, TITANIUM-OXIDE, CLUSTERS, ADSORPTION",

author = "Paramaconi Rodriguez and Daniela Plana and Fermin, {David J} and Koper, {Marc T.M.}",

year = "2014",

month = mar,

doi = "10.1016/j.jcat.2013.11.020",

language = "English",

volume = "311",

pages = "182--189",

journal = "Journal of Catalysis",

publisher = "Academic Press",

}

TY - JOUR

T1 - New insights into the catalytic activity of gold nanoparticles for CO oxidation in electrochemical media

AU - Rodriguez, Paramaconi

AU - Plana, Daniela

AU - Fermin, David J

AU - Koper, Marc T.M.

PY - 2014/3

Y1 - 2014/3

N2 - This study reports the interaction between metal oxides and gold in acidic media and its effect on the electrochemical oxidation of carbon monoxide. We describe the oxidation of CO in acidic media on Au nanoparticles of 3 and 7 nm on different oxide supports, diamond and carbon electrodes. In addition, the effect of a TiOx support on Au nanoparticles was mimicked by supporting TiOx nanoparticles on bulk gold. The comparison of these two systems strongly suggests that electronic interactions between Au and TiOx, rather than Au nanoparticle size effects, are the driving force of the catalytic activity in Au-TiOx. (C) 2013 Elsevier Inc. All rights reserved.

AB - This study reports the interaction between metal oxides and gold in acidic media and its effect on the electrochemical oxidation of carbon monoxide. We describe the oxidation of CO in acidic media on Au nanoparticles of 3 and 7 nm on different oxide supports, diamond and carbon electrodes. In addition, the effect of a TiOx support on Au nanoparticles was mimicked by supporting TiOx nanoparticles on bulk gold. The comparison of these two systems strongly suggests that electronic interactions between Au and TiOx, rather than Au nanoparticle size effects, are the driving force of the catalytic activity in Au-TiOx. (C) 2013 Elsevier Inc. All rights reserved.

KW - Gold catalysis

KW - Carbon monoxide

KW - Electrochemistry

KW - Nanoparticles

KW - Metal oxides

KW - SCANNING-TUNNELING-MICROSCOPY

KW - SINGLE-CRYSTAL SURFACES

KW - METAL-PARTICLE SIZE

KW - CARBON-MONOXIDE

KW - SUPPORTED GOLD

KW - AU NANOPARTICLES

KW - OXYGEN REDUCTION

KW - TITANIUM-OXIDE

KW - CLUSTERS

KW - ADSORPTION

U2 - 10.1016/j.jcat.2013.11.020

DO - 10.1016/j.jcat.2013.11.020

M3 - Article (Academic Journal)

VL - 311

SP - 182

EP - 189

JO - Journal of Catalysis

JF - Journal of Catalysis

ER -

New insights into the catalytic activity of gold nanoparticles for CO oxidation in electrochemical media

Abstract

Keywords

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Electrochemical Oxidation of Low Molecular Weight Alkanes to Liquid Fuels at Molecular Interfaces

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Professor David J Fermin

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