Interfacial Engineering-Induced Electronic State Modulation in Ru/MoS2 Heterostructures for Efficient Hydrogen Evolution Reaction

Abstract

In traditional binary heterojunction catalysts, mismatched energy band structures lead to higher electron transfer barriers. By significantly reducing the work function difference through the design of a ternary Ru-RuS₂/MoS₂ heterostructure, we developed a HER catalyst that exhibits remarkable activity (17 mV @ 10 mA cm^-2) and outstanding stability (300 h @ 500 mA cm^-2).