Preparation and Characterization of Perovskite-Type LaFe_1-xCo_xO₃ Oxides and Its Catalytic Activity for Methane Partial Oxidation

Perovskite-type LaFe_1-xCo_xO₃ oxide catalysts were prepared by the sol-gel method and the catalysts were characterized by means of H₂-TPR and CH₄-TPSR.The consumption of surface oxygen and the reaction of methane at the surface were investigated.The results indicated that there were two kinds of oxygen species in LaFe_1-xCo_xO₃ catalysts, strong oxygen species and weak oxygen species.With the amounts of Co increased, the oxidated reaction translated from the partial oxidation of methane to the total oxidation of methane.It was harmful to the partial oxidation of methane (POM) to synthesis gas.