Photoreduction of CO2 with a Formate Dehydrogenase Driven by Photosystem II Using a Semi-artificial Z-Scheme Architecture

Katarzyna P. Sokol, William E. Robinson, Ana Rita Oliveira, Julien Warnan, Marc M. Nowaczyk, Adrian Ruff, Inês A.C. Pereira, Erwin Reisner

Research output: Contribution to journalArticlepeer-review

70 Citations (Scopus)
4 Downloads (Pure)

Abstract

Solar-driven coupling of water oxidation with CO2 reduction sustains life on our planet and is of high priority in contemporary energy research. Here, we report a photoelectrochemical tandem device that performs photocatalytic reduction of CO2 to formate. We employ a semi-artificial design, which wires a W-dependent formate dehydrogenase (FDH) cathode to a photoanode containing the photosynthetic water oxidation enzyme, Photosystem II, via a synthetic dye with complementary light absorption. From a biological perspective, the system achieves a metabolically inaccessible pathway of light-driven CO2 fixation to formate. From a synthetic point of view, it represents a proof-of-principle system utilizing precious-metal-free catalysts for selective CO2-to-formate conversion using water as an electron donor. This hybrid platform demonstrates the translatability and versatility of coupling abiotic and biotic components to create challenging models for solar fuel and chemical synthesis.

Original languageEnglish
Pages (from-to)16418-16422
Number of pages5
JournalJournal of the American Chemical Society
Volume140
Issue number48
DOIs
Publication statusPublished - 5 Dec 2018

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