Study of low-temperature selective catalytic reduction of NO by ammonia over carbon-nanotube-supported vanadium

In this article, low-temperature selective catalytic reduction (SCR) reaction of NO on carbon nanotube-supported vanadium (V2O5/CNT) catalysts was carried out. When compared with activated carbon as a support catalyst, carbon nanotubes with low load of V2O5 show excellent catalytic activity than that of activated carbon, and the catalytic activity of V2O5/CNT catalysts increases markedly in the presence of SO2. The transient reaction experiment shows that the reaction of V2O5/CNT catalyst for low-temperature SCR of NO follows the mechanism of Eley–Rideal, namely by the reaction between the adsorbed NH3 and NO in the gaseous or a weakly adsorbed state.