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dc.contributor.authorEdwardes Moore, Esther
dc.contributor.authorAndrei, Virgil
dc.contributor.authorZacarias, Sónia
dc.contributor.authorPereira, Inês AC
dc.contributor.authorReisner, Erwin
dc.date.accessioned2019-12-14T00:30:21Z
dc.date.available2019-12-14T00:30:21Z
dc.date.issued2020-01-10
dc.identifier.issn2380-8195
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/299887
dc.description.abstractLead halide perovskite solar cells are notoriously moisture-sensitive, but recent encapsulation strategies have demonstrated their potential application as photoelectrodes in aqueous solution. However, perovskite photoelectrodes rely on precious metal co-catalysts, and their combination with biological materials remains elusive in integrated devices. Here, we interface [NiFeSe] hydrogenase from Desulfovibrio vulgaris Hildenborough, a highly active enzyme for H2 generation, with a triple cation mixed halide perovskite. The perovskite-hydrogenase photoelectrode produces a photocurrent of -5 mA cm-2 at 0 V vs RHE during AM1.5G irradiation, is stable for 12 h and the hydrogenase exhibits a turnover number of 1.9 × 106. The positive onset potential of +0.8 V vs RHE allows its combination with a BiVO4 water oxidation photoanode to give a self-sustaining, bias-free photoelectrochemical tandem system for overall water splitting (solar-to-hydrogen efficiency of 1.1%). This work demonstrates the compatibility of immersed perovskite elements with biological catalysts to produce hybrid photoelectrodes with benchmark performance, which establishes their utility in semiartificial photosynthesis.
dc.format.mediumPrint-Electronic
dc.languageeng
dc.publisherAmerican Chemical Society (ACS)
dc.rightsAll rights reserved
dc.titleIntegration of a Hydrogenase in a Lead Halide Perovskite Photoelectrode for Tandem Solar Water Splitting.
dc.typeArticle
prism.endingPage237
prism.issueIdentifier1
prism.publicationDate2020
prism.publicationNameACS Energy Lett
prism.startingPage232
prism.volume5
dc.identifier.doi10.17863/CAM.46957
dcterms.dateAccepted2019-12-10
rioxxterms.versionofrecord10.1021/acsenergylett.9b02437
rioxxterms.versionAM
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2020-01
dc.contributor.orcidAndrei, Virgil [0000-0002-6914-4841]
dc.contributor.orcidReisner, Erwin [0000-0002-7781-1616]
dc.identifier.eissn2380-8195
rioxxterms.typeJournal Article/Review
pubs.funder-project-idEuropean Research Council (682833)
cam.issuedOnline2019-12-10
cam.orpheus.successThu Jan 30 10:33:50 GMT 2020 - Embargo updated
rioxxterms.freetoread.startdate2021-01-01


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