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Efficient H2-producing photocatalytic systems based on cyclometalated iridium- and tricarbonylrhenium-diimine photosensitizers and cobaloxime catalysts

2008; Royal Society of Chemistry; Issue: 41 Linguagem: Inglês

10.1039/b812605b

1477-9234

Aziz Fihri, Vincent Artero, A. Pereira, Marc Fontecave,

CO2 Reduction Techniques and Catalysts

Quantum yield values up to 16% under visible irradiation associated with high turnover frequencies (∼50 h−1) and stability (up to 273 turnovers), characterize the new photocatalytic systems for hydrogen production, based on diimine derivatives of ruthenium, cyclometallated iridium or tricarbonylrhenium as photosensitizers and cobaloxime H2-evolving catalytic centers, which are among the most efficient molecular systems reported so far and compete with some platinum-based systems.