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in 0.05 M KOH. Notably, the low-alkalinity AEMWE cell exhibited exceptional durability for over 1000 h, surpassing most of the previously reported data under similar operating conditions. Isotope labeling and in situ characterizations confirmed that dissociated *H spills from efficient water-dissociation sites on Ru to favorable hydrogen-desorption sites on Ir with lower *H coverage, significantly improving activity and stability at high current densities.
Shen et al. (Mon,) studied this question.