Subsurface oxygen defects electronically interacting with active sites on In₂O₃ for enhanced photothermocatalytic CO₂ reduction.

ABSTRACT: Oxygen defects play an important role in many catalytic reactions. Increasing surface oxygen defects can be done through reduction treatment. However, excessive reduction blocks electron channels and deactivates the catalyst surface due to electron-trapped effects by subsurface oxygen defects. How to effectively extract electrons from subsurface oxygen defects which cannot directly interact with reactants is challenging and remains elusive. Here, we report a metallic In-embedded In₂O₃ nanoflake catalyst over which the turnover frequency of CO₂ reduction into CO increases by a factor of 866 (7615 h^-1) and 376 (2990 h^-1) at the same light intensity and reaction temperature, respectively, compared to In₂O₃. Under ele

SUBMITTER: Wei W 

PROVIDER: S-EPMC9184511 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature