Mathematical modelling of oscillatory behaviour during methane oxidation over palladium catalysts

▸ Oscillations during methane oxidation over Pd catalysts are modelled. ▸ The model simulates anti-phase oscillations of two reaction products, CO2 and H2O. ▸ Oscillations occur due to periodic oxidation and reduction of the Pd catalyst. ▸ The origin of the anti-phase oscillations is the carbon diffusion into Pd bulk. ▸ Carbon diffusion rate and a large depth of its penetration into Pd are important.