High-Dispersed V 2 O 5 -CuO X Nanoparticles on h-BN in NH 3 -SCR and NH 3 -SCO Performance.

Typically, to meet emission regulations, the selective catalytic reduction of NO X with NH 3 (NH 3 -SCR) technology cause NH 3 emissions owing to high NH 3 /NO X ratios to meet emission regulations. In this study, V-Cu/BN-Ti was used to remove residual NO X and NH 3 . Catalysts were evaluated for selective catalytic oxidation of NH 3 (NH 3 -SCO) in the NH 3 -SCR reaction at 200-300 °C. The addition of vanadium and copper increased the number of Brønsted and Lewis acid sites available for the reaction by increasing the ratio of V 5+ and forming Cu + species, respectively. Furthermore, h-BN was dispersed in the catalyst to improve the content of vanadium and copper species on the surface. NH 3 and NO X conversion were 98% and 91% at 260 °C, respectively. Consequently, slipped NH 3 (NH 3 -Slip) emitted only 2% of the injected ammonia. Under SO 2 conditions, based on the NH 3 oxidation reaction, catalytic deactivation was improved by addition of h-BN. This study suggests that h-BN is a potential catalyst that can help remove residual NO X and meet NH 3 emission regulations when placed at the bottom of the SCR catalyst layer in coal-fired power plants.