Interfacial engineering of Ru-RuSb₂ for enhanced activity and stability towards alkaline hydrogen oxidation reaction.

ABSTRACT: Although Ru has been regarded as the key candidate to replace Pt in alkaline hydrogen oxidation reaction (HOR), the substandard stability owing to its easy oxidation seriously impacts its practical application. In this work, we report the construction of a Ru-RuSb₂ heterostructure, showing excellent performance and stability towards alkaline HOR. Owing to the difference in the work functions of Ru and RuSb₂, the charge transfer induced by the build-in electric field modifies the electron distribution on the surface, enhancing the OH adsorption on the heterostructure. Moreover, the connectivity of the hydrogen bonding network is promoted with the inducing of OH species, which thereby leads to elevated proton transfer and accelerated HOR process, presenting a mass activ

SUBMITTER: Yang C 

PROVIDER: S-EPMC12264760 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature