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A highly active Pt-Fe/γ-Al2O3 catalyst for preferential oxidation of CO in excess of H2 with a wide operation temperature window.

Highly efficient Pt-Fe/γ-Al2O3 catalysts for preferential oxidation of CO in excess of H2 (CO-PROX) were prepared by utilizing single-atom Fe species as active sites for O2 activation, which exhibited high catalytic activity and selectivity from 25 °C to 200 °C, with the highest Pt specific rate of Pt-based catalysts for CO-PROX.