Selective Visible-Light-Driven CO2 Reduction on a p-Type Dye-Sensitized NiO Photocathode
2014
Bachmeier, Andreas | Hall, Samuel | Ragsdale, Stephen W. | Armstrong, F. A. (Fraser A.)
We present a photocathode assembly for the visible-light-driven selective reduction of CO₂ to CO at potentials below the thermodynamic equilibrium in the dark. The photoelectrode comprises a porous p-type semiconducting NiO electrode modified with the visible-light-responsive organic dye P1 and the reversible CO₂ cycling enzyme carbon monoxide dehydrogenase. The direct electrochemistry of the enzymatic electrocatalyst on NiO shows that in the dark the electrocatalytic behavior is rectified toward CO oxidation, with the reactivity being governed by the carrier availability at the semiconductor–catalyst interface.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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