Abstract: “In this paper, LaMn0.6B0.4O3 (B= Cu and Fe) perovskite type mixed oxides were prepared by sol-gel method and characterized by X-ray diffraction and scanning electron microscope. Activity of synthesized catalysts were evaluated in catalytic reduction of NO with CO. XRD results show that the studied perovskites were synthesized in single phase perovskite structure. The activity of catalysts improved due to partial substitution of Mn by B cation. T50% of NO over LaMnO3, LaMn0.6Cu0.4O3 and LaMn0.6Fe0.4O3 was 451, 358 and 366 ºC, respectively. LaMn0.6Cu0.4O3 was the optimum catalyst in simultaneous reduction of NO with CO.”

Keywords: Perovskite Catalyst, Catalytic reduction, Solgel, NOx-CO, Environment