Electroreduction of N2 to ammonia is a possible alternative to the Haber–Bosch process, but the competing hydrogen evolution reaction typically limits yields. Now, electrochemical protocols combining two molecular catalysts are shown to produce ammonia with adequate selectivity at moderate overpotentials under mild conditions.
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Siewert, I. Two catalysts are better than one. Nat Energy 7, 908–909 (2022). https://doi.org/10.1038/s41560-022-01123-5