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This paper reports that Pt/TiO2 and to some extent, Pt/Al2O3 and Pt/SiO2 catalysts show some activity in the photocatalytic oxidation of CO by water at low temperature (< 100 °C) in the absence of oxygen. For Pt/TiO2 catalysts, CO conversion is dependent on the Pt loading as well as the temperature of their reduction. There are an optimal platinum loading (5 wt%) and catalyst reduction temperature...
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