Pt-O bond as an active site superior to Pt⁰ in hydrogen evolution reaction.

ABSTRACT: The oxidized platinum (Pt) can exhibit better electrocatalytic activity than metallic Pt⁰ in the hydrogen evolution reaction (HER), which has aroused great interest in exploring the role of oxygen in Pt-based catalysts. Herein, we select two structurally well-defined polyoxometalates Na₅[H₃Pt^(IV)W₆O₂₄] (PtW₆O₂₄) and Na₃K₅[Pt^(II)₂(W₅O₁₈)₂] (Pt₂(W₅O₁₈)₂) as the platinum oxide model to investigate the HER performance. Electrocatalytic experiments show the mass activities of PtW₆O₂₄/C and Pt₂(W₅O₁₈)₂/C are 20.175 A mg^-

SUBMITTER: Yu FY 

PROVIDER: S-EPMC6981163 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature