High-efficiency electrochemical nitrite reduction to ammonium using a Cu3P nanowire array under ambient conditions

Cu₃P enables ambient electrosynthesis of ammonium via selective NO₂⁻ reduction, achieving a yield rate of 1626.6 ± 36.1 μg h⁻¹ cm⁻² and a Faradaic efficiency of 91.2 ± 2.5%. The catalytic mechanism is investigated by theoretical calculations.