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Mechanistic study of the preferential CO oxidation was carried out over a Pt(1.0wt.%)/NaY zeolite catalyst from 300 to 523K by combination of kinetics and spectroscopy. The mechanism of CO oxidation at 300K was proposed on the basis of spectroscopic study, and the activity at low temperatures was assumed to originate from small Pt clusters. The analysis of XPS and TEM revealed that metallic state...
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