Author/Authors :
Carmen Jiménez-Borja، نويسنده , , C. and Brosda، نويسنده , , S. and Makri، نويسنده , , M. and Sapountzi، نويسنده , , F. and Dorado، نويسنده , , F. and Valverde، نويسنده , , J.L. and Vayenas، نويسنده , , C.G.، نويسنده ,
Abstract :
Electrochemical investigations have been carried out on Pd/YSZ catalyst-electrodes for deep oxidation of methane in excess of oxygen. A wet impregnation technique has been used to achieve highly active Pd catalyst films. It was found that co-feeding of ethylene in oxidizing gas mixtures enhances the rate of methane conversion and allows for electrochemical promotion of methane oxidation at temperatures as low as 320 °C. The electrochemical promotion behavior has been studied with long term potentiostatic transients together with AC impedance measurements during polarization.
Keywords :
Methane combustion , Pd catalyst-electrode , Electrochemical promotion , AC impedance spectroscopy
