A Multi-Heme Flavoenzyme as a Solar Conversion Catalyst

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• 作者：Andreas Bachmeier ; Bonnie J. Murphy ; Fraser A. Armstrong
• 刊名：Journal of the American Chemical Society
• 出版年：2014
• 出版时间：September 17, 2014
• 年：2014
• 卷：136
• 期：37
• 页码：12876-12879
• 全文大小：334K
• ISSN：1520-5126

文摘

The enzyme flavocytochrome c₃ (fcc₃), which catalyzes hydrogenation across a C鈺怌 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 nanoparticles, fcc₃ catalyzes visible-light-driven succinate production in aqueous suspension. Solar-to-chemical conversion using neutral water as the oxidant is achieved with a photoelectrochemical cell comprising an fcc₃-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.