Design and Realization of Ni Clusters in MoS 2 @Ni/RGO Catalysts for Alkaline Efficient Hydrogen Evolution Reaction.

Due to their almost zero relative hydrogen atom adsorption-free energy, MoS 2 -based materials have received substantial study. However, their poor electronic conductivity and limited number of catalytic active sites hinder their widespread use in hydrogen evolution reactions. On the other hand, metal clusters offer numerous active sites. In this study, by loading Ni metal clusters on MoS 2 and combining them with the better electrical conductivity of graphene, the overpotential of the hydrogen evolution reaction was reduced from 165 mV to 92 mV at 10 mA·cm -2 . This demonstrates that a successful method for effectively designing water decomposition is the use of synergistic interactions resulting from interfacial electron transfer between MoS 2 and Ni metal clusters.