In situ cofactor regeneration enables selective CO2 reduction in a stable and efficient enzymatic photoelectrochemical cell
نویسندگان
چکیده
Mimicking natural photosynthesis by direct photoelectrochemical (PEC) reduction of CO2 to chemicals and fuels requires complex cell assemblies with limitations in selectivity, efficiency, cost, stability. Here, we present a breakthrough cathode utilizing an oxygen tolerant formate dehydrogenase enzyme derived from clostridium carboxidivorans coupled novel efficient situ nicotinamide adenine dinucleotide (NAD+/NADH) regeneration mechanism through interfacial electrochemistry on g-C3N4 films. We demonstrate stable (20 h) aerobic PEC CO2-to-formate at close 100 % faradaic efficiency unit selectivity bio-hybrid minimal engineering optimized Ta3N5 nanotube photoanode powered simulated sunlight solar fuel 0.063 %, approaching that photosynthesis.
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ژورنال
عنوان ژورنال: Applied Catalysis B-environmental
سال: 2021
ISSN: ['1873-3883', '0926-3373']
DOI: https://doi.org/10.1016/j.apcatb.2021.120349