Synergistic catalysis of graphitic carbon nitride supported bimetallic sulfide nanostructures for efficient oxygen generation

摘要

Herein, a series of g-C3N4 supported bimetallic sulfide nanostructures (Ni3S2/MoS2/ng-C3N4, n = 10, 20 and 30) was prepared by a hydrothermal method and subsequently a thermal annealing approach. Ni3S2/MoS2/20g-C3N4 with controlled composition exhibits efficient OER activity with a low overpotential of 183 mV at 10 mA cm−2, which outperforms the vast majority of sulfide OER electrocatalysts reported previously.