Supported palladium oxide catalysts are able to convert CH4 to C2H6, CO, CO2, H2 and H2O at temperatures ⩾315 °C. Catalysts did not show any support effect when TiO2, Al2O3, ZrO2, La2O3 and MgO were used as supports. With sequential O2 pulsing the catalyst showed long term activity when used at temperatures below 400 °C. Addition of Pt increased selectivity whereas with Ga it decreased. Results indicate participation of lattice O2 from catalyst in the reaction pathway.