Ru _x Se@MoS₂ hybrid as a highly efficient electrocatalyst toward hydrogen evolution reaction.

ABSTRACT: Alkaline hydrogen evolution reaction (HER) requires highly efficient and stable catalytic materials, the engineering of which needs overall consideration of the water dissociation process as well as the intermediate hydrogen adsorption process. Herein, a Ru _x Se@MoS₂ hybrid catalyst was synthesized by the decoration of MoS₂ with Ru _x Se nanoparticles through a two-step hydrothermal reaction. Due to the bifunctionality mechanism in which Ru promotes the water dissociation and the nearby Se atoms, unsaturated Mo and/or S atoms act as active sites for the intermediate hydrogen adsorption, the hybrid catalyst exhibits an exceptional HER performance in basic media with a rather low overpotential of 45 mV at a current density of 10 mA cm<

SUBMITTER: Chen Q 

PROVIDER: S-EPMC9063915 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature