ChemInform Abstract: Efficient Light-Driven Carbon-Free Cobalt-Based Molecular Catalyst for Water Oxidation.

✍ Scribed by Craig L. Hill; et al. et al.

• Publisher: John Wiley and Sons
• Year: 2011
• Weight: 29 KB
• Volume: 42
• Category: Article
• ISSN: 0931-7597
• DOI: 10.1002/chin.201122008

✦ Synopsis

Efficient Light-Driven Carbon-Free Cobalt-Based Molecular Catalyst for Water Oxidation. -[Co 4 (H 2 O) 2 (PW 9 O 34 ) 2 ] 10-is a hydrolytically and oxidatively stable, homogeneous, and efficient molecular catalyst for the visible-light-driven catalytic oxidation of water. Using [Ru(bipy) 3 ] 2+ as a photosensitizer and S 2

as a sacrificial electron acceptor, the polyoxometallate complex exhibits a photon-to-O 2 yield of 30% and a turnover number >220 at pH 8. Its photocatalytic performance is superior to that of the previously reported [{Ru 4 O 4 (OH) 2 (H 2 O) 4 }(γ-SiW 10 O 36 ) 2 ] 10-water oxidation catalyst.