The hydrogen dependent CO 2 reductase: the first completely CO tolerant FeFe-hydrogenase
The Hydrogen Dependent Carbon dioxide Reductase (HDCR) from Acetobacterium woodii presents a promising solution to the issue of H 2 storage by reversibly coupling H 2 oxidation to CO 2 reduction. We here report on the electrocatalytic properties of the hydrogenase (Hase) module in the intact complex...
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Published in | Energy & environmental science Vol. 10; no. 2; pp. 503 - 508 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
2017
|
Online Access | Get full text |
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Summary: | The Hydrogen Dependent Carbon dioxide Reductase (HDCR) from
Acetobacterium woodii
presents a promising solution to the issue of H
2
storage by reversibly coupling H
2
oxidation to CO
2
reduction. We here report on the electrocatalytic properties of the hydrogenase (Hase) module in the intact complex, including (an)aerobic oxidation, CO inhibition and the first systematic analysis of the catalytic bias (CB) of a Hase. CB depends on pH, regardless of the H
2
concentration, despite a higher affinity for H
2
than other FeFe-Hases. Remarkably, CO inhibition is fully reversible under all oxidation states of the active site, making HDCR the first “syngas-friendly” FeFe-Hase. |
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ISSN: | 1754-5692 1754-5706 |
DOI: | 10.1039/C6EE02494G |