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dc.contributor.authorTapia, Cristinaes_ES
dc.contributor.authorMilton, Ross D.es_ES
dc.contributor.authorPankratova, Galinaes_ES
dc.contributor.authorMinteer, Shelleyes_ES
dc.contributor.authorÅkerlund, Hans-Erikes_ES
dc.contributor.authorLeech, Donales_ES
dc.contributor.authorLópez de Lacey, Antonioes_ES
dc.contributor.authorPita, Marcoses_ES
dc.date.accessioned2018-04-16T12:30:11Z-
dc.date.available2018-04-16T12:30:11Z-
dc.date.issued2017-01-
dc.identifier.citationChemElectroChem 4(1): 90-95 (2017)es_ES
dc.identifier.urihttp://hdl.handle.net/10261/163677-
dc.description.abstractPhotosystem I (PSI) is combined with Desulfovibrio gigas hydrogenase for the bioelectrocatalytic photosynthesis of hydrogen at an electrode surface. The activity of these two biocatalysts is linked by two redox polymers; a redox polymer with a relatively positive potential (loaded with an Os complex) is able to reduce PSI and thus facilitates the production of photoexcited electrons, whereas redox polymers of relatively low potential are able to transfer electrons to the hydrogenase. Two negative‐potential redox polymers are tested, with either a viologen pendant (4‐methyl‐4′‐bromopropylviologen functionalized linear polyethylenimine) or a cobaltocene pendant (cobaltocene‐functionalized branched polyethylenimine, Cc‐BPEI). Both are able to protect hydrogenase from O2 inactivation, but only the use of Cc‐BPEI yields significant photocurrents for H+ reduction, likely due to its lower redox potential. The photocurrents obtained are found to be proportional to the quantity of H2 produced, reaching a maximum of −30 μA cm−2 for the system incorporating Cc‐BPEI and showing a relatively positive onset potential at +0.38 V versus SHE.es_ES
dc.description.sponsorshipThe authors thank the following agencies for financial support: The European Commission project “Bioenergy” FP7‐PEOPLE‐2013‐ITN‐607793, the Swedish Research Council project 2014‐5908, and the Spanish MINECO project CTQ2015‐71290‐R. C.T. thanks the Spanish MINECO for her BES‐2013‐064099 contract and EEBB‐I‐16‐11240 grant. R.D.M., S.D.M., and D.L. acknowledge funding from a Marie Curie‐Skłodowska Individual Fellowship (Global) under the European Commission's Horizon 2020 Framework (project 654836, “Bioelectroammonia”). S.D.M. thanks the Air Force Office of Scientific Research.es_ES
dc.language.isoenges_ES
dc.publisherJohn Wiley & Sonses_ES
dc.relationinfo:eu-repo/grantAgreement/EC/FP7/607793es_ES
dc.relationMINECO/ICTI2013-2016/CTQ2015‐71290‐Res_ES
dc.relationinfo:eu-repo/grantAgreement/EC/H2020/654836es_ES
dc.rightsclosedAccesses_ES
dc.titleWiring of Photosystem I and Hydrogenase on an Electrode for Photoelectrochemical H2 Production by using Redox Polymers for Relatively Positive Onset Potentiales_ES
dc.typeartículoes_ES
dc.identifier.doi10.1002/celc.201600506-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttps://doi.org/10.1002/celc.201600506es_ES
dc.identifier.e-issn2196-0216-
dc.contributor.funderEuropean Commissiones_ES
dc.contributor.funderSwedish Research Counciles_ES
dc.contributor.funderMinisterio de Economía y Competitividad (España)es_ES
dc.relation.csices_ES
oprm.item.hasRevisionno ko 0 false*
dc.identifier.funderhttp://dx.doi.org/10.13039/501100000780es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100003329es_ES
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