Highly stable and efficient non-precious metal electrocatalysts of Mo-doped NiOOH nanosheets for oxygen evolution reaction

Active and stable electrocatalysts for oxygen evolution reaction (OER) made from earth-abundant elements are highly attractive. Herein, we report our recent efforts in developing Mo-doped NiOOH (MoNiOOH) nanosheets as highly active and stable OER catalysts. The doping of Mo is found to be conducive for both activity and stability. The MoNiOOH nanosheets need overpotential of only 390 mV to afford the current densities of 100 mA cm−2 and show no obvious degradation under steady-state current density of 100 mA cm−2 even after 24 h.