The composition of an electrolyte has a significant effect on electrocatalytic reaction rates and product selectivities. One mechanism by which spectator alkali cations can dictate reaction kinetics is now better understood.
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The author declares no competing interests.
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McCrum, I.T. Cations in alkaline hydrogen electrocatalysis. Nat Catal 5, 846–847 (2022). https://doi.org/10.1038/s41929-022-00858-4