Nature-Driven Photochemistry for Catalytic Solar Hydrogen Production: A Photosystem I鈥揟ransition Metal Catalyst Hybrid
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- 作者：Lisa M. Utschig ; Sunshine C. Silver ; Karen L. Mulfort ; David M. Tiede
- 刊名：Journal of the American Chemical Society
- 出版年：2011
- 出版时间：October 19, 2011
- 年：2011
- 卷：133
- 期：41
- 页码：16334-16337
- 全文大小：700K
- 年卷期：v.133,no.41(October 19, 2011)
- ISSN：1520-5126
文摘
Solar energy conversion of water into the environmentally clean fuel hydrogen offers one of the best long-term solutions for meeting future energy demands. Nature provides highly evolved, finely tuned molecular machinery for solar energy conversion that exquisitely manages photon capture and conversion processes to drive oxygenic water-splitting and carbon fixation. Herein, we use one of Nature鈥檚 specialized energy-converters, the Photosystem I (PSI) protein, to drive hydrogen production from a synthetic molecular catalyst comprised of inexpensive, earth-abundant materials. PSI and a cobaloxime catalyst self-assemble, and the resultant complex rapidly produces hydrogen in aqueous solution upon exposure to visible light. This work establishes a strategy for enhancing photosynthetic efficiency for solar fuel production by augmenting natural photosynthetic systems with synthetically tunable abiotic catalysts.