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A series of ceria modified zirconium phosphate catalysts were synthesized for selective catalytic reduction of NO with ammonia (NH3-SCR). Over 98% NOx conversion and 98% N2 selectivity were obtained by the CeO2/ZrP catalyst with 20 wt.% CeO2 loading at 250–425 °C. The interaction between CeO2 and zirconium phosphate enhanced the redox abilities and surface acidities of the catalysts, resulting in...
A series of CuO-Fe2O3 composite oxides were successfully prepared for low temperature selective catalytic oxidation of ammonia (NH3-SCO). Higher Cu/Fe ratio in CuO-Fe2O3 catalysts led to higher activity for NH3 oxidation and the lower Cu/Fe ratio improved the N2 selectivity. The optimal catalyst with a Cu/Fe molar ratio of 5:5 displayed a low complete conversion temperature (<250°C) with a relatively...
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