The Effect of CeO[sub.2] on the Catalytic Activity and SO[sub.2] Resistance of the V[sub.2]O[sub.5]-MoO[sub.3]/TiO[sub.2] Catalyst Prepared Using the Ball Milling Method for the NH[sub.3]-SCR of NO

V[sub.2]O[sub.5]-WO[sub.3](MoO[sub.3])/TiO[sub.2] catalysts are widely used in industrial denitrification (deNOx) processes based on the selective catalytic reduction (SCR) technique. To lower their cost and shorten the production cycle, V[sub.2]O[sub.5]-MoO[sub.3]/TiO[sub.2] catalysts with and without CeO[sub.2] modification were prepared using the ball milling method. This study demonstrates that the CeO[sub.2]-modified catalyst has high NO conversion and a broader temperature window due to the decreased amount of easily reducible vanadium species and the enhanced property of oxygen species activation in CeO[sub.2]. Meanwhile, the SO[sub.2] resistance of the catalyst is restrained due to the strong adsorption and oxidation of SO[sub.2] over CeO[sub.2] in the catalyst.