Effect of CeO2 support on the selective catalytic reduction of NO with NH3 over P-W/CeO2

The P-W/CeO2 catalysts were prepared and used for the NH3-SCR reaction with different CeO2 supports prepared by hydrothermal (Cat-A), sol-gel (Cat-B) and precipitation (Cat-C) methods. Cat-A possessed the smallest particle sizes, excellent dispersity, larger specific area, more amount of L acid sites and higher pore structure, resulting in a superior redox property, which contributed to the SCR activity. Besides, the favorable activity in NH3 oxidation, as well as NO oxidation, contributed to the excellent catalytic activity. 272