A Multi-Heme Flavoenzyme as a Solar Conversion Catalyst

作者：Bachmeier Andreas; Murphy Bonnie J; Armstrong Fraser A^*

来源：Journal of the American Chemical Society, 2014, 136(37): 12876-12879.

DOI：10.1021/ja507733j

The enzyme flavocytochrome c(3) (fcc(3)), which catalyzes hydrogenation across a C=C double bond (fumarate to succinate), is used to carry out the fuel-forming reaction in an artificial photosynthesis system. When immobilized on dye-sensitized TiO2 nanopartides, fcc(3) catalyzes visible-light-driven succinate production in aqueous suspension. Solar-to-chemical conversion using neutral water as the oxidant is achieved with a photo-electrochemical cell comprising an fcc(3)-modified indium tin oxide cathode linked to a cobalt phosphate-modified BiVO4 photoanode. The results reinforce new directions in the area of artificial photosynthesis, in particular for solar-energy-driven synthesis of organic chemicals and commodities, moving away from simple fuels as target molecules.

• 出版日期2014-9-17