Morphological and electronic modulation of NiSe nanosheet assemblies by Mo, S-codoping for an efficient hydrogen evolution reaction

Abstract

The direct growth of Mo, S-codoped NiSe nanosheet assemblies on nickel foam (Mo, S-codoped NiSe/NF-160 NSs) was fulfilled through a one-step hydrothermal reaction, which exhibited enhanced HER activity delivering a current density of 10 mA cm⁻² at an overpotential of 88 mV, a small Tafel slope of 82 mV dec⁻¹ and excellent stability in an alkaline electrolyte.