Functional Ceramics

Solid Oxide Fuel Cells (SOFCs)

Solid Oxide Fuel Cells exploit the same material characteristics as the oxygen sensors where 2 electrodes are separated by an oxygen conducting electrolyte. The high oxygen conductivity of yttria stabilised zirconia in a wide range of temperatures and pressures has meant that it is used as the solid electrolyte in solid oxide fuel cells. The oxygen ions migrate through the yttria stabilised zirconia electrolyte from the cathode air electrode to the anode fuel electrode where they react with the fuel to generate an electrical voltage. This method of electricity generation is both efficient and clean. Based on existing research yttria stabilised zirconia is the best performing electrolyte.


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