Carbon Dioxide Reforming of Methane on Ni-ceria-based Oxide Cermet Anode for Solid Oxide Fuel Cells

摘要

Carbon dioxide reforming of methane on Ni-ceria-based oxide cermet anode of solid oxide fuel cells was carried out. Electrochemical characterizations revealed that direct internal carbon dioxide reforming operation was strongly influenced by the operation temperature. Direct internal carbon dioxide reforming operation resulted in sufficient level of conversion for power generation with methane at 750°C, while it gave insufficient level of conversion at 700 and 650°C. The results of gas analysis at 750°C also reveal that methane was effectively converted to hydrogen and carbon monoxide in the radial direction of the cell, and that hydrogen and carbon monoxide were effectively used as fuel species for electrochemical oxidation reactions.