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. NaCo 2 O 4 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 NaCo 2 O 4 and Fe-Co-Ni cell was made. The cell generated a high output power density of 64 mW/cm 2 directly from ethanol at current density of 160 mA/cm 2 .