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dc.contributor.authorAntón-García, Daniel
dc.contributor.authorEdwardes Moore, Esther
dc.contributor.authorBajada, Mark A
dc.contributor.authorEisenschmidt, Annika
dc.contributor.authorOliveira, Ana R
dc.contributor.authorPereira, Inês AC
dc.contributor.authorWarnan, Julien
dc.contributor.authorReisner, Erwin
dc.date.accessioned2022-01-12T00:30:39Z
dc.date.available2022-01-12T00:30:39Z
dc.date.issued2022-01-01
dc.identifier.issn2731-0582
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/332635
dc.description.abstractThe reduction of CO2 to renewable fuels must be coupled to a sustainable oxidation process to devise a viable solar fuel-producing device. In photoelectrochemical cells, water oxidation to O2 is the predominant oxidation reaction and typically requires a pair of light absorbers or an applied bias voltage when coupled to CO2 reduction. Here, we report a bias-free photoelectrochemical device for simultaneous CO2 reduction to formate and alcohol oxidation to aldehyde in aqueous conditions. The photoanode is constructed by co-immobilisation of a diketopyrrolopyrrole-based chromophore and a nitroxyl-based alcohol oxidation catalyst on a mesoporous TiO2 scaffold, providing a precious metal-free dye-sensitised photoanode. The photoanode was wired to a biohybrid cathode consisting of the CO2 reduction enzyme formate dehydrogenase integrated into a mesoporous indium tin oxide electrode. The bias-free cell delivers sustained photocurrents of up to 30 µA cm−2 under visible-light irradiation, resulting in simultaneous aldehyde and formate production. Our results show that single light absorber photoelectrochemical cells can be used for parallel fuel production and chemical synthesis from CO2 and waste streams in the absence of an external bias.
dc.publisherSpringer Science and Business Media LLC
dc.rightsAll Rights Reserved
dc.rights.urihttp://www.rioxx.net/licenses/all-rights-reserved
dc.titlePhotoelectrochemical hybrid cell for unbiased CO2 reduction coupled to alcohol oxidation
dc.typeArticle
dc.publisher.departmentDepartment of Chemistry
dc.date.updated2022-01-10T16:49:10Z
prism.publicationNameNature Synthesis
dc.identifier.doi10.17863/CAM.80080
dcterms.dateAccepted2021-10-21
rioxxterms.versionofrecord10.1038/s44160-021-00003-2
rioxxterms.versionAM
dc.contributor.orcidAntón-García, Daniel [0000-0001-5466-2921]
dc.contributor.orcidWarnan, Julien [0000-0003-2729-8997]
dc.contributor.orcidReisner, Erwin [0000-0002-7781-1616]
dc.identifier.eissn2731-0582
rioxxterms.typeJournal Article/Review
pubs.funder-project-idChristian Doppler Forschungsgesellschaft (unknown)
pubs.funder-project-idEPSRC (1800449)
pubs.funder-project-idEuropean Research Council (682833)
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/M508007/1)
cam.issuedOnline2022-01-12
datacite.issupplementedby.urlhttps://doi.org/10.17863/CAM.76484
cam.orpheus.successTue Feb 01 19:02:40 GMT 2022 - Embargo updated
cam.depositDate2022-01-10
pubs.licence-identifierapollo-deposit-licence-2-1
pubs.licence-display-nameApollo Repository Deposit Licence Agreement
rioxxterms.freetoread.startdate2022-07-12


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