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dc.contributor.authorCreissen, Charles E
dc.contributor.authorWarnan, Julien
dc.contributor.authorReisner, Erwin
dc.date.accessioned2018-02-12T17:55:31Z
dc.date.available2018-02-12T17:55:31Z
dc.date.issued2018-02-14
dc.identifier.issn2041-6520
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/273167
dc.description.abstractDye-sensitised photoelectrochemical (DSPEC) cells have emerged in recent years as a route to solar fuel production. However, fuel-forming photocathodes are presently limited by photo-corrodible narrow band gap semiconductors or the small range of available wide bandgap p-type semiconductors such as NiO that display low performance with dyes. Here, we introduce CuCrO2 as a suitable p-type semiconductor for visible light-driven H2 generation upon co-immobilisation of a phosphonated diketopyrrolopyrrole dye with a Ni-bis(diphosphine) catalyst. The hybrid CuCrO2 photocathode displays an early photocurrent onset potential of +0.75 V vs. RHE and delivers a photocurrent of 15 μA cm-2 at 0.0 V vs. RHE in pH 3 aqueous electrolyte solution under UV-filtered simulated solar irradiation. Controlled potential photoelectrolysis at 0.0 V vs. RHE shows good stability and yields a Ni catalyst-based turnover number of 126 ± 13 towards H2 after 2 h. This precious metal-free system outperforms an analogous NiO|dye/catalyst assembly and therefore highlights the benefits of using CuCrO2 as a novel material for DSPEC applications.
dc.format.mediumElectronic-eCollection
dc.languageeng
dc.publisherRoyal Society of Chemistry (RSC)
dc.rightsAttribution 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.titleSolar H2 generation in water with a CuCrO2 photocathode modified with an organic dye and molecular Ni catalyst.
dc.typeArticle
prism.endingPage1447
prism.issueIdentifier6
prism.publicationDate2018
prism.publicationNameChem Sci
prism.startingPage1439
prism.volume9
dc.identifier.doi10.17863/CAM.20173
dcterms.dateAccepted2017-11-26
rioxxterms.versionofrecord10.1039/c7sc04476c
rioxxterms.versionVoR
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/
rioxxterms.licenseref.startdate2018-02
dc.contributor.orcidReisner, Erwin [0000-0002-7781-1616]
dc.identifier.eissn2041-6539
rioxxterms.typeJournal Article/Review
pubs.funder-project-idChristian Doppler Forschungsgesellschaft (unknown)
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/J017361/1)
pubs.funder-project-idEPSRC (1494597)
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/L015978/1)
cam.issuedOnline2017-11-27
cam.orpheus.successThu Jan 30 10:20:11 GMT 2020 - The item has an open VoR version.
rioxxterms.freetoread.startdate2100-01-01


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Attribution 4.0 International
Except where otherwise noted, this item's licence is described as Attribution 4.0 International