Abstract
This work is aimed at studying the electrochemical behavior of the MEA containing the bimetallic catalysts with an alloy structure. The relevance of the study is associated with application of a simple method to synthesize the bimetallic catalysts using the acid post-treatment to obtain de-alloyed nanoparticles with an increased activity in the oxygen reduction reaction, a performance stability during the long-term stress testing, and a composition stability during the operation. The novelty of the work consists in a detailed consideration of the mechanisms of poisoning the MEA's components by copper cations formed during a selective dissolution of the catalysts' components as well as the mechanisms of the proton-exchange membrane degradation.
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