Electronic-reconstruction-enhanced hydrogen evolution catalysis in oxide polymorphs.

ABSTRACT: Transition metal oxides exhibit strong structure-property correlations, which has been extensively investigated and utilized for achieving efficient oxygen electrocatalysts. However, high-performance oxide-based electrocatalysts for hydrogen evolution are quite limited, and the mechanism still remains elusive. Here we demonstrate the strong correlations between the electronic structure and hydrogen electrocatalytic activity within a single oxide system Ti₂O₃. Taking advantage of the epitaxial stabilization, the polymorphism of Ti₂O₃ is extended by stabilizing bulk-absent polymorphs in the film-form. Electronic reconstructions are realized in the bulk-absent Ti₂O₃ polymorphs, which are further correlated to their electrocatal

SUBMITTER: Li Y 

PROVIDER: S-EPMC6637208 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature