The paper of Prof. Ken Sakai and Dr. Alexander Rene Parent (Hydrogen Production Research Division, I2CNER) was published in “Chemical Communications”.
■ Summary
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.
■ Paper
Title:Cobalt porphyrins as homogeneous catalysts for water oxidation
Authors:
