Catalytic combustion of ethyl acetate over CeMnOx and CeMnZrOx compounds synthesized by coprecipitation method

Ce0.6Mno.4O2 catalysts with different sources of manganese and Ce0.6-xZroe ZrMno.4O2 mixed oxide catalysts were prepared by coprecipitation method and were characterized by N2 adsorption-desorption, TPR, XRD, and XPS techniques. The activities of the prepared catalysts for ethyl acetate combustion, and the effects of calcination temperature and space velocity on catalytic activity were investigated. The results showed that partial replacement of Mn(NO3)2 with KM11O4 as sources of manganese could improve activities of catalysts. Ce0.45Zro.15Mno.4O2} catalyst exhibited the best catalytic activity and high thermal stability, e.g., Γ90 could be still below 210 °C even if space velocity was up to 20000 h−1.