What are Some Common Catalysts for Electrochemical Reactions?
Various materials serve as effective catalysts for electrochemical reactions. For hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), platinum and iridium oxides are commonly used, respectively. For oxygen reduction reaction (ORR) in fuel cells, platinum is often employed. Recently, non-noble metal catalysts like transition metal oxides, carbides, and nitrides have gained attention due to their lower cost and comparable activity.
