Cobalt porphyrins as homogeneous catalysts for water oxidation

Takashi Nakazono, Alexander Rene Parent, Ken Sakai

Research output: Contribution to journalArticlepeer-review

214 Citations (Scopus)


Three water-soluble cobalt porphyrins have been investigated as water oxidation catalysts via photo-initiation using RuII(bpy)32+/Na2S2O8. The pH dependence of the turnover frequency revealed maximum activity at pH 11. Based on the second order dependence on catalyst concentration for the rate of water oxidation, we suggest a bimolecular radical coupling process as the rate determining step.

Original languageEnglish
Pages (from-to)6325-6327
Number of pages3
JournalChemical Communications
Issue number56
Publication statusPublished - Jun 18 2013

All Science Journal Classification (ASJC) codes

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


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