Studies on B-site doped LaSrCoO₄ mixed oxides towards CO and C₃H₈ oxidation

Abstract

1388-1391A series of LaSrCo0.9B'0.1O4 (B'= Mn, Fe, Ni, Cu) mixed oxides have been prepared by the polyacrylamide gel method and used successfully for CO and C3H5 oxidation. The results show that the specific effects of B' ions on CO and C3H8 oxidation depend on their category. In comparison to the LaSrCoO4 catalyst, the activity of LaSrCo0.9Ni0.1O4 catalyst for CO and C3H8 oxidation is higher, while the activity of Mn, Fe or Cu-doped catalysts is lower. The TPD and XRD analyses show that the increase in oxidation activity of LaSrCo0.9Ni0.1O4 catalyst towards CO and C3H8 oxidation can be related to the increase in O2-adsorption, CO2 -desorption quantity and the lattice distortion