Isolation of Oxygen Formed during Catalytic Reduction of Carbon Dioxide Using a Solid Electrolyte Membrane

摘要

We studied the separative recovery of oxygen formed during the hydrogenation of carbon dioxide using a composite system consisting of yettria-stability zirconia (YSZ) membrane-equipped Ag electrodes as a spump and a nickel/zeolite catalyst to initiate the hydrogenation of carbon dioxide. The methanation of carbon dioxide proceeded efficiently in the presence of the nickel/zeolite catalyst even at 873 K, the lowest functional temeprature at which YSZ has ionic conductivity.