Perovskite Photocatalytic CO₂ Reduction or Photoredox Organic Transformation?

ABSTRACT: Metal-halide perovskites have been explored as photocatalysts for CO₂ reduction. We report that perovskite photocatalytic CO₂ reduction in organic solvents is likely problematic. Instead, the detected products (i.e., CO) likely result from a photoredox organic transformation involving the solvent. Our observations have been validated using isotopic labeling experiments, band energy analysis, and new control experiments. We designed a typical perovskite photocatalytic setup in organic solvents that led to CO production of up to ≈1000 μmol g^-1  h^-1 . CO₂ reduction in organic solvents must be studied with extra care because photoredox organic transformations can produce orders of magnitude higher rate of CO or CH₄ than is typic

SUBMITTER: San Martin J 

PROVIDER: S-EPMC9804990 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature