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dc.contributor.authorEdwardes Moore, Esther
dc.contributor.authorAndrei, Virgil
dc.contributor.authorZacarias, Sónia
dc.contributor.authorPereira, Inês A C
dc.contributor.authorReisner, Erwin
dc.date.accessioned2020-03-06T02:14:14Z
dc.date.available2020-03-06T02:14:14Z
dc.date.issued2019-12-10
dc.identifier.issn2380-8195
dc.identifier.otherPMC6986817
dc.identifier.other32010793
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/303094
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.languageeng
dc.sourceessn: 2380-8195
dc.sourcenlmid: 101697523
dc.titleIntegration of a Hydrogenase in a Lead Halide Perovskite Photoelectrode for Tandem Solar Water Splitting.
dc.typeArticle
dc.date.updated2020-03-06T02:14:14Z
prism.endingPage237
prism.issueIdentifier1
prism.publicationNameACS energy letters
prism.startingPage232
prism.volume5
dc.identifier.doi10.17863/CAM.50171
rioxxterms.versionofrecord10.1021/acsenergylett.9b02437
rioxxterms.versionVoR
pubs.funder-project-idEuropean Research Council (682833)


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