Extremely efficient and stable hydrogen evolution by a Pt/NiOx composite film deposited on a nickel foam using a mixed metal-imidazole casting method

Extremely efficient and robust electrocatalysts for the hydrogen evolution reaction (HER) were developed with the lowest overpotentials of only η 10 = 4.2 and η 100 = 26.4 mV among the state-of-the-art HER electrocatalysts under alkaline conditions.