Journal
JOURNAL OF CATALYSIS
Volume 311, Issue -, Pages 182-189Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcat.2013.11.020
Keywords
Gold catalysis; Carbon monoxide; Electrochemistry; Nanoparticles; Metal oxides
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Funding
- Netherlands Organization for Scientific Research (NWO) through VENI grant
- Netherlands Organization for Scientific Research (NWO) through VICI grant
- European Commission (through FP7 Initial Training Network 'ELCAT') [214936-2]
- EPSRC [EP/H046305/1]
- University of Bristol
- EPSRC [EP/H046305/1, EP/K007025/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/K007025/1, EP/H046305/1] Funding Source: researchfish
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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.
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