Rational Design and Characterization on RuO2-Based Catalysts for Acidic Oxygen Evolution Reaction Guided by Reaction Pathway Regulation

Key Points

• The aim is to develop and characterize RuO2-based catalysts optimized for the oxygen evolution reaction in acidic environments.
• Characterization of RuO2-based catalysts using various techniques to assess their performance.
• Investigation of reaction pathways to guide the optimization of catalyst design.
• Comparison with iridium-based catalysts to evaluate effectiveness in PEM water electrolyzers.
• RuO2 catalysts demonstrated significantly higher activity than iridium-based alternatives.
• Optimized catalysts showed reduced overpotential during the oxygen evolution reaction.
• Improvement in efficiency indicated by a substantial increase in current density at a fixed voltage.