Low-temperature total oxidation of methane over Ag-doped LaMO3 perovskite oxides
Abstract
Partial substitution of La by Ag, instead of Sr, in LaMO3(M = Co, Mn, Ni) perovskite causes a large increase in the catalytic activity of the perovskite in the complete combustion of dilute methane for its emission control, at low temperature (< 700 °C) and high space velocity (51 000 cm3 g–1 h–1); Ag-doped LaCoO3 shows the highest methane combustion activity.