Br^-/BrO^--mediated highly efficient photoelectrochemical epoxidation of alkenes on α-Fe₂O₃.

ABSTRACT: Epoxides are significant intermediates for the manufacture of pharmaceuticals and epoxy resins. In this study, we develop a Br^-/BrO^- mediated photoelectrochemical epoxidation system on α-Fe₂O₃. High selectivity (up to >99%) and faradaic efficiency (up to 82 ± 4%) for the epoxidation of a wide range of alkenes are achieved, with water as oxygen source, which are far beyond the most reported electrochemical and photoelectrochemical epoxidation performances. Further, we can verify that the epoxidation reaction is mediated by Br^-/BrO^- route, in which Br^- is oxidized non-radically to BrO^- by an oxygen atom transfer pathway on α-Fe₂O₃, and the formed BrO^- in turn transfers its

SUBMITTER: Zhao Y 

PROVIDER: S-EPMC10082182 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature