Design Sr, Mn-doped 3DOM LaCoO3 perovskite catalysts with excellent SO2 resistance for benzene catalytic combustion

The Sr and Mn metal additives were introduced to regulate the microstructure and electron valence state of LaCoO3 perovskite catalysts, thereby enhancing the catalytic activity and sulfur resistance of benzene catalytic combustion reaction. On one hand, Sr and Mn may act as an electron promoter to increase the concentration of Co3+ and Oads. On the other hand, Sr and Mn can act as a structure promoter to enhance the specific surface area and promote the dispersion of active Co species.