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dc.contributor.authorAndrei, Virgilen
dc.contributor.authorReuillard, Bertranden
dc.contributor.authorReisner, Erwinen
dc.date.accessioned2019-09-30T23:30:18Z
dc.date.available2019-09-30T23:30:18Z
dc.date.issued2020-02en
dc.identifier.issn1476-1122
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/297288
dc.description.abstractThe photoelectrochemical (PEC) production of syngas from water and CO2 represents an attractive technology towards a circular carbon economy. However, the overpotential (i.e. energy loss), low selectivity and cost of commonly employed catalysts make this sustainable alternative challenging. Here, we demonstrate highly tunable PEC syngas production by integrating an earth abundant, cobalt porphyrin catalyst immobilized on carbon nanotubes with triple-cation mixed halide perovskite and BiVO4 photoabsorbers. Empirical data analysis is used to clarify the optimal electrode selectivity at low catalyst loadings. The perovskite photocathodes maintain selective aqueous CO2 reduction for one day at light intensities as low as 0.1Sun. Perovskite-BiVO4 PEC tandems sustain an unprecedented bias-free syngas production for three days with solar-to-H2 and solar-to-CO conversion efficiencies of 0.06% and 0.02%, respectively, operating as standalone artificial leaves in neutral pH solution. These systems provide potential pathways for maximizing daylight utilisation, by sustaining CO2 conversion even under low solar irradiance.
dc.description.sponsorshipChristian Doppler Research Association (Austrian Federal Ministry for Digital and Economic Affairs and the National Foundation for Research, Technology and Development), the OMV Group, Cambridge Trusts (Vice-Chancellor’s Award), the Winton Programme for the Physics of Sustainability, BBSRC
dc.format.mediumPrint-Electronicen
dc.languageengen
dc.publisherSpringer Nature
dc.rightsAll rights reserved
dc.rights.uri
dc.titleBias-free solar syngas production by integrating a molecular cobalt catalyst with perovskite-BiVO4 tandems.en
dc.typeArticle
prism.endingPage194
prism.issueIdentifier2en
prism.publicationDate2020en
prism.publicationNameNature materialsen
prism.startingPage189
prism.volume19en
dc.identifier.doi10.17863/CAM.44337
dcterms.dateAccepted2019-09-05en
rioxxterms.versionofrecord10.1038/s41563-019-0501-6en
rioxxterms.versionAM
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2020-02en
dc.contributor.orcidAndrei, Virgil [0000-0002-6914-4841]
dc.contributor.orcidReuillard, Bertrand [0000-0002-9553-1773]
dc.contributor.orcidReisner, Erwin [0000-0002-7781-1616]
dc.identifier.eissn1476-4660
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idBBSRC (BB/K010220/1)
pubs.funder-project-idChristian Doppler Forschungsgesellschaft (unknown)
pubs.funder-project-idECH2020 EUROPEAN RESEARCH COUNCIL (ERC) (682833)
cam.orpheus.successThu Jan 30 10:37:52 GMT 2020 - Embargo updated*
rioxxterms.freetoread.startdate2020-04-21


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