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- W2904893302 abstract "Using a phenoxazine-based organic photosensitizer and an iron porphyrin molecular catalyst, we demonstrated photochemical reduction of CO2 to CO and CH4 with turnover numbers (TONs) of 149 and 29, respectively, under visible-light irradiation (λ > 435 nm) with a tertiary amine as sacrificial electron donor. This work is the first example of a molecular system using an earth-abundant metal catalyst and an organic dye to effect complete 8e-/8H+ reduction of CO2 to CH4, as opposed to typical 2e-/2H+ products of CO or formic acid. The catalytic system continuously produced methane even after prolonged irradiation up to 4 days. Using CO as the feedstock, the same reactive system was able to produce CH4 with 85% selectivity, 80 TON and a quantum yield of 0.47%. The redox properties of the organic photosensitizer and acidity of the proton source were shown to play a key role in driving the 8e-/8H+ processes." @default.
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- W2904893302 date "2018-12-07" @default.
- W2904893302 modified "2023-10-14" @default.
- W2904893302 title "Visible-Light-Driven Conversion of CO<sub>2</sub> to CH<sub>4</sub> with an Organic Sensitizer and an Iron Porphyrin Catalyst" @default.
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- W2904893302 doi "https://doi.org/10.1021/jacs.8b09740" @default.
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