Methane catalytic and electrocatalytic combustion over perovskite oxides deposited on YSZ

Abstract

The catalytic and the electrocatalytic behavior of La0.6Sr0.4Co0.8Fe0.2O3 Perovskite type oxide deposited on Yttria Stabilized Zirconia (YSZ) in the form of thin porous films, was studied during the reaction of methane combustion. It was found that oxygen electrochemically supplied through the solid electrolyte (YSZ), affects drastically the rate of methane combustion. It was also found that the observed phenomena are purely Faradaic and the above catalytic system can operate in a wide range of experimental conditions maintaining long time catalytic activity and thermal stability.