Self-supported Ru-doped NiMoO4 for efficient hydrogen evolution with 1000 mA cm−2 at a low overpotential

Self-supported Ru-doped NiMoO₄ (Ru-NiMoO₄) is synthesized on commercial NiMo foam. The Ru-NiMoO₄ exhibits extremely high performance for electrocatalytic hydrogen evolution with a small overpotential of 170.6 mV to afford a current density of 1000 mA cm^-2, and excellent durability for 150 hours in alkaline solution.