Engineering sulfur vacancy defects in self-supporting Mo-doped NiS ultrathin nanosheets grown in situ on nickel foam for enhanced water splitting

With sulfur vacancy engineering, Mo-doped NiS ultrathin nanosheets were hydrothermally grown on nickel foam. As a dual electrode, Mo-NiS/NF required only 1.56 V for 10 mA cm −2 in 1.0 M KOH, showing excellent total water splitting activity.