Anion-Exchange Membrane Fuel Cells, Oxide-Based Catalysts
Anion-exchange membrane fuel cells have high potentials as a small-sized power generator with high efficiency. Also there are a lot of choices of materials for the fuel cell as an alkaline-based system . The possibility of the use of non-platinum catalysts brings to lower the cost of fuel cells. It is also possible to produce a chemically rechargeable fuel cells when the electrochemical electrode reactions were reversible. In that case, hydrogen and oxygen evolution activities should be also required to both electrodes. As for the oxygen electrode, it means the use of “bifunctional” oxygen electrocatalyst. Here the electrode catalysts made by oxides would be introduced, and some bifunctional activities of oxide are also shown in this chapter.
Oxygen Electrocatalyst Classification
Catalysts for anion-exchange membrane fuel cells are for the use in the alkaline medium. Thus, much more materials could be applicable as catalysts than those for polymer electrolyte fuel...
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