“…Modeling results have shown that
formed on the catalyst surface can be oxidized to
or
consuming water, leading to decreased membrane conductivity and S crossover to the cathode, negatively affecting the oxygen reduction reaction and diminishing the PEMFC performance
[29,30] . Therefore, efforts have been made to develop PtRu,
[31–33] PtCo,
[34,35] and PtNi
[36,37] alloy catalysts with high resistance to CO and H 2 S to mitigate these poisoning effects. Extensive studies have been conducted on the effects and mechanisms of poisoning caused by CO and H 2 S individually.…”