Researches on SCR catalyst with Pt for NOx removal at low temperature

DeNOx SCR catalysts with Pt were prepared using V_2O_5 and WO_3 as the active components and anatase titania as the support, and adding micro component Pt. The as-prepared catalyst was characterized by BET and XRD,and its denitrification performance was investigated. The results showed that the specific surface area, light-off temperature and the temperature window of the catalyst had certain change. The catalyst exhibited better catalytic activity and stable denitrification rate of over 90% under the condition of 160℃, and NH_3/NOx volume ratio 0.8-1.2.