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.
Original language | English |
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Pages (from-to) | 182-189 |
Number of pages | 8 |
Journal | Journal of Catalysis |
Volume | 311 |
Early online date | 25 Dec 2013 |
DOIs | |
Publication status | Published - 1 Mar 2014 |
Keywords
- Gold catalysis
- Carbon monoxide
- Electrochemistry
- Nanoparticles
- Metal oxides
ASJC Scopus subject areas
- Catalysis
- Physical and Theoretical Chemistry