 The RuRH2 bi-metally non-airing has been developed as a promising electrocatalyst for the hydrogen evolution reaction, HER. It displays superior performance compared to existing point catalysts and other reported her catalysts. The unique structural features of this material, including grain boundaries and symmetry breaking, are responsible for its enhanced her activity. These features enable the efficient transfer of electrons and the adsorption of reactants, which leads to improved her performance in different pH conditions. This article was authored by Shuichin Mu, Jiani Gu, Fian Feng, and others.