Highly efficient and robust noble-metal free bifunctional water electrolysis catalyst achieved via complementary charge transfer.

ABSTRACT: The operating principle of conventional water electrolysis using heterogenous catalysts has been primarily focused on the unidirectional charge transfer within the heterostructure. Herein, multidirectional charge transfer concept has been adopted within heterostructured catalysts to develop an efficient and robust bifunctional water electrolysis catalyst, which comprises perovskite oxides (La_0.5Sr_0.5CoO_3-δ, LSC) and potassium ion-bonded MoSe₂ (K-MoSe₂). The complementary charge transfer from LSC and K to MoSe₂ endows MoSe₂ with the electron-rich surface and increased electrical conductivity, which improves the hydrogen evolution reaction (HER) kinetics. Excellent oxygen evolution reaction (OER) kinetics of LSC/K-M

SUBMITTER: Oh NK 

PROVIDER: S-EPMC8322133 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature