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Development of Direct-Ethanol Anion-Conducting Solid Alkaline Inorganic Fuel Cell

Anion-conducting solid alkaline inorganic fuels cell was developed. This fuel cell could be operated at high temperature of 110oC. NaCo2O4 showed OH- conduction and activity for oxygen reduction reaction. The Fe-Co-Ni alloy catalyst prepared in this experiment showed activity not only for hydrogen oxidation reaction but also for ethanol oxidation reaction. Completely precious metal-free fuel cell composed of NaCo2O4 and Fe-Co-Ni cell was made. The cell generated a high output power density of 64 mW/cm2 directly from ethanol at current density of 160 mA/cm2.