In situ cofactor regeneration enables selective CO2 reduction in a stable and efficient enzymatic photoelectrochemical cell

dc.date.accessioned	2021-05-19T15:58:36Z
dc.date.available	2021-05-19T15:58:36Z
dc.date.created	2021-05-16T21:19:40Z
dc.date.issued	2021
dc.identifier.citation	Xu, Kaiqi Chatzitakis, Athanasios Eleftherios Backe, Paul Hoff Ruan, Qiushi Junwang, Tang Rise, Frode Bjørås, Magnar Norby, Truls Eivind . In situ cofactor regeneration enables selective CO2 reduction in a stable and efficient enzymatic photoelectrochemical cell. Applied Catalysis B: Environmental. 2021
dc.identifier.uri	http://hdl.handle.net/10852/86199
dc.description.abstract	Mimicking natural photosynthesis by direct photoelectrochemical (PEC) reduction of CO2 to chemicals and fuels requires complex cell assemblies with limitations in selectivity, efficiency, cost, and stability. Here, we present a breakthrough cathode utilizing an oxygen tolerant formate dehydrogenase enzyme derived from clostridium carboxidivorans and coupled to a novel and efficient in 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 reduction at close to 100 % faradaic efficiency and unit selectivity in a bio-hybrid PEC cell of minimal engineering with optimized Ta3N5 nanotube photoanode powered by simulated sunlight with a solar to fuel efficiency of 0.063 %, approaching that of natural photosynthesis.
dc.language	EN
dc.rights	Attribution 4.0 International
dc.rights.uri	https://creativecommons.org/licenses/by/4.0/
dc.title	In situ cofactor regeneration enables selective CO2 reduction in a stable and efficient enzymatic photoelectrochemical cell
dc.type	Journal article
dc.creator.author	Xu, Kaiqi
dc.creator.author	Chatzitakis, Athanasios Eleftherios
dc.creator.author	Backe, Paul Hoff
dc.creator.author	Ruan, Qiushi
dc.creator.author	Junwang, Tang
dc.creator.author	Rise, Frode
dc.creator.author	Bjørås, Magnar
dc.creator.author	Norby, Truls Eivind
cristin.unitcode	185,15,17,0
cristin.unitname	Senter for materialvitenskap og nanoteknologi
cristin.ispublished	false
cristin.fulltext	postprint
cristin.qualitycode	1
dc.identifier.cristin	1910296
dc.identifier.bibliographiccitation	info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Applied Catalysis B: Environmental&rft.volume=&rft.spage=&rft.date=2021
dc.identifier.jtitle	Applied Catalysis B: Environmental
dc.identifier.volume	296
dc.identifier.doi	https://doi.org/10.1016/j.apcatb.2021.120349
dc.identifier.urn	URN:NBN:no-88852
dc.type.document	Tidsskriftartikkel
dc.type.peerreviewed	Peer reviewed
dc.source.issn	0926-3373
dc.identifier.fulltext	Fulltext https://www.duo.uio.no/bitstream/handle/10852/86199/5/1-s2.0-S0926337321004756-main.pdf
dc.type.version	PublishedVersion
cristin.articleid	120349
dc.relation.project	NFR/250261
dc.relation.project	NFR/226244
dc.relation.project	EC/H2020/856446
dc.relation.project	NFR/288320