Biofunctionalized conductive polymers enable efficient CO2 electroreduction

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dc.contributor.authorCoskun, Halime
dc.contributor.authorAljabour, Abdalaziz
dc.contributor.authorDe Luna, Phil
dc.contributor.authorFarka, Dominik
dc.contributor.authorGreunz, Theresia
dc.contributor.authorStifter, David
dc.contributor.authorKus, Mahmut
dc.date.accessioned2020-03-26T19:34:06Z
dc.date.available2020-03-26T19:34:06Z
dc.date.issued2017
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractSelective electrocatalysts are urgently needed for carbon dioxide (CO2) reduction to replace fossil fuels with renewable fuels, thereby closing the carbon cycle. To date, noble metals have achieved the best performance in energy yield and faradaic efficiency and have recently reached impressive electrical-to-chemical power conversion efficiencies. However, the scarcity of preciousmetalsmakes the search for scalable, metal-free, CO2 reduction reaction (CO2RR) catalysts all themore important. We report an all-organic, that is, metal-free, electrocatalyst that achieves impressive performance comparable to that of best-in-class Ag electrocatalysts. We hypothesized that polydopamine-a conjugated polymer whose structure incorporates hydrogen-bonded motifs found in enzymes-could offer the combination of efficient electrical conduction, together with rendered active catalytic sites, and potentially thereby enable CO2RR. Only by developing a vapor-phase polymerization of polydopamine were we able to combine the needed excellent conductivity with thin film-based processing. We achieve catalytic performance with geometric current densities of 18 mA cm(-2) at 0.21 V overpotential (-0.86 V versus normal hydrogen electrode) for the electrosynthesis of C-1 species (carbon monoxide and formate) with continuous 16-hour operation at >80% faradaic efficiency. Our catalyst exhibits lower overpotentials than state-of-the-art formate-selective metal electrocatalysts (for example, 0.5 V for Ag at 18mA cm(-1)). The results confirm the value of exploiting hydrogen-bonded sequences as effective catalytic centers for renewable and cost-efficient industrial CO2RR applications.en_US
dc.description.sponsorshipOeAD [Scientific & Technological Cooperation (WTZ) [IN10/2015]; Austrian Science Foundation (FWF)Austrian Science Fund (FWF) [Z 222-N19, FWF-P28167-N34]; Tubitak (The Scientific and Technological Research Council of Turkey)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [2215]; Austrian Federal Ministry of Science, Research and Economy; National Foundation for Research, Technology and Development; Austrian Research Promotion Agency (FFG) [FFGP13540004]; Natural Sciences and Engineering Research Council of CanadaNatural Sciences and Engineering Research Council of Canada; Canadian Graduate Scholarship-Doctoral awarden_US
dc.description.sponsorshipP.S. is thankful to OeAD [Scientific & Technological Cooperation (WTZ), IN10/2015] for financial support and acknowledges the government of Upper Austria within the Sabbatical program "Internationalization of the University of Linz." N.S.S. acknowledges financial support from the Austrian Science Foundation (FWF) (Z 222-N19) within the Wittgenstein Prize Scheme. A.A. and M.K. acknowledges Tubitak (The Scientific and Technological Research Council of Turkey) for a scholarship within program 2215. A. W.H. acknowledges the financial support by the Austrian Federal Ministry of Science, Research and Economy and the National Foundation for Research, Technology and Development in the frame of the Christian Doppler Laboratory for Combinatorial Oxide Chemistry (COMBOX). W.S. acknowledges the financial support from the Austrian Science Foundation (FWF) (project FWF-P28167-N34). D.F. acknowledges financial support from the Austrian Research Promotion Agency (FFG) (FFGP13540004). P.D.L. acknowledges the Natural Sciences and Engineering Research Council of Canada for financial support in the form of a Canadian Graduate Scholarship-Doctoral award.en_US
dc.identifier.doi10.1126/sciadv.1700686en_US
dc.identifier.issn2375-2548en_US
dc.identifier.issue8en_US
dc.identifier.pmid28798958en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://dx.doi.org/10.1126/sciadv.1700686
dc.identifier.urihttps://hdl.handle.net/20.500.12395/34841
dc.identifier.volume3en_US
dc.identifier.wosWOS:000411589900008en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherAMER ASSOC ADVANCEMENT SCIENCEen_US
dc.relation.ispartofSCIENCE ADVANCESen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.selcuk20240510_oaigen_US
dc.titleBiofunctionalized conductive polymers enable efficient CO2 electroreductionen_US
dc.typeArticleen_US

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