Metal–organic Framework Derived RuNiMo/NC for Enhanced Hydrogen Production and Methanol Reforming Electrolysis

It is important to probe the effect of doping of ultratrace content of precious metal and synergistic effects of multimetals on effective electrocatalysts for water splitting. Thus, ultratrace content Ru doping NiMo-NC were acquired through simple hydrothermal technology and high-temperature pyrolysis. Benefiting from porous structure, ultratrace content Ru doping and synergistic effect of multiple metals, RuNiMo-NC-2 presents the small overpotentials of 130 and 199 mV for MOR to achieve 10 and 100mA cm−2 in 1 mol/L potassium hydroxide with 5 mol/L methanol. The assembled water electrolyzer with the RuNiMo-NC-2||RuNiMo-NC-2 couple only requires 1.49 V to realize 10mA  cm−2 for the overall water splitting in 1 mol/L potassium hydroxide with 5 M methanol. This paper offers a feasible method for designing bifunctional electrocatalysts with superior electrocatalytic performance, which can be used in hydrogen production through water electrolysis.