Abstract
Coprecipitated Au/Fe2O3 catalysts used for low-temperature catalytic oxidation of carbon monoxide have been studied by FT-IR spectroscopy of adsorbed CO. The FT-IR results have shown that after preparation and exposure to a CO/O2 mixture gold is present on the surface mainly as Au1+ and Au0 species. It has been found that in the CO oxidation Au1+ is more active and less stable than Au0.
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Minicò, S., Scirè, S., Crisafulli, C. et al. FT-IR study of Au/Fe2O3 catalysts for CO oxidation at low temperature. Catalysis Letters 47, 273–276 (1997). https://doi.org/10.1023/A:1019081727173
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DOI: https://doi.org/10.1023/A:1019081727173