Efficient photocatalytic proton-coupled electron-transfer reduction of O2 using a saddle-distorted porphyrin as a photocatalyst

Emi Aoki, Wataru Suzuki, Hiroaki Kotani, Tomoya Ishizuka, Hayato Sakai, Taku Hasobe, Takahiko Kojima

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Photocatalytic O2 reduction reactions proceeded to produce H2O2 using a diprotonated saddle-distorted dodecaphenylporphyrin as a photocatalyst. The quantum yield (12%), the turnover number (3000 for 6 h), and the turnover frequency (500 h-1) are achieved in photocatalytic systems based on free-base porphyrins for the first time. The photocatalytic reaction mechanism has been revealed by ns-laser flash photolysis and kinetic analysis.

Original languageEnglish
Pages (from-to)4925-4928
Number of pages4
JournalChemical Communications
Volume55
Issue number34
DOIs
Publication statusPublished - 2019

ASJC Scopus subject areas

  • Catalysis
  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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