In-situ local phase-transitioned MoSe₂ in La_0.5Sr_0.5CoO_3-δ heterostructure and stable overall water electrolysis over 1000 hours.

ABSTRACT: Developing efficient bifunctional catalysts for overall water splitting that are earth-abundant, cost-effective, and durable is of considerable importance from the practical perspective to mitigate the issues associated with precious metal-based catalysts. Herein, we introduce a heterostructure comprising perovskite oxides (La_0.5Sr_0.5CoO_3-δ) and molybdenum diselenide (MoSe₂) as an electrochemical catalyst for overall water electrolysis. Interestingly, formation of the heterostructure of La_0.5Sr_0.5CoO_3-δ and MoSe₂ induces a local phase transition in MoSe₂, 2 H to 1 T phase, and more electrophilic La_0.5Sr_0.5CoO_3-δ with partial oxidation of the Co cation owing to

SUBMITTER: Oh NK 

PROVIDER: S-EPMC6461638 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature