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Understanding the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER) mechanisms is critical to the design of future electrocatalysts for fuel cells, electrolyzers, and metal–air batteries. As parts of the effort to elucidate the reaction mechanisms, we report the influence of the cationic species on the ORR/OER activity of select transition metal oxide catalysts in alkaline solutions...
In order to understand the degradation of Pt/C as a fundamental study for the reduction of Pt loading, the degradation during various potential fluctuation patterns has been investigated. The slow anodic sweep and fast cathodic sweep potential pattern suppress the rate of the electrochemical surface area decrease. An increase in the higher potential limit accelerates the degradation. The degradation...
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