2D amorphous bi-metallic NiFe nitrides for a high-efficiency oxygen evolution reaction

Abstract

Two-dimensional bi-metallic NiFe nitrides (2D NiFe–N) are successfully synthesized in the designed ternary deep eutectic solvents under the guidance of DFT calculations. Taking advantage of the unique properties of large-size, ultrathin amorphous 2D structure and modulable electronic structure, the NiFe_0.05–N exhibits extraordinary OER performance with relatively low overpotential of 238 mV at 10 mA cm⁻² and durable stability.