Cobalt porphyrins as homogeneous catalysts for water oxidation

Takashi Nakazono; Alexander Rene Parent; Ken Sakai

doi:10.1039/c3cc43031f

Cobalt porphyrins as homogeneous catalysts for water oxidation

Takashi Nakazono, Alexander Rene Parent, Ken Sakai

Inorganic and Analytical Chemistry

Research output: Contribution to journal › Article › peer-review

214 Citations (Scopus)

Abstract

Three water-soluble cobalt porphyrins have been investigated as water oxidation catalysts via photo-initiation using Ru^II(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 language	English
Pages (from-to)	6325-6327
Number of pages	3
Journal	Chemical Communications
Volume	49
Issue number	56
DOIs	https://doi.org/10.1039/c3cc43031f
Publication status	Published - 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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title = "Cobalt porphyrins as homogeneous catalysts for water oxidation",

abstract = "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.",

author = "Takashi Nakazono and {Rene Parent}, Alexander and Ken Sakai",

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AB - 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.

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JO - Chemical Communications

JF - Chemical Communications

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Cobalt porphyrins as homogeneous catalysts for water oxidation

Abstract

All Science Journal Classification (ASJC) codes

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