Proton-exchange membranes based on sulfonated poly(ether ether ketone)/polyaniline blends for all- and air-vanadium redox flow battery applications

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dc.contributor.authorDavid, Oana
dc.contributor.authorPercin, Korcan
dc.contributor.authorLuo, Tao
dc.contributor.authorGendel, Youri
dc.contributor.authorWessling, Matthias
dc.contributor.institutionTECNOLOGÍA DE MEMBRANAS E INTENSIFICACIÓN DE PROCESOS
dc.date.accessioned2024-07-24T12:02:46Z
dc.date.available2024-07-24T12:02:46Z
dc.date.issued2015
dc.descriptionPublisher Copyright: © 2015 Elsevier Ltd.
dc.description.abstractThin and mechanically stable proton-exchange membranes with high V(IV) barrier properties and good proton conductivity have been fabricated by polymer blending of sulfonated poly(ether ether ketone) with polyaniline. V(IV) diffusion coefficient of blended membranes in a wt. ratio of 80/20 was 2.6 and 6 times lower than for pure sulfonated poly(ether ether ketone) and Nafion 112 membrane, respectively. This behaviour is assumed to be caused by a densified polymer matrix given by acid/base interactions between the two polymers. Blended membranes in a wt. ratio of 80/20 had a good proton conductivity of 54.15mScm-1 and ion exchange capacity of 1.44mmolg-1. The membranes were also characterized in all-vanadium redox flow battery, where only slightly higher efficiencies were achieved than for pure polymer. Slow PANI degradation determines a decrease in membrane performance, reaching values close to the starting polymer (SPEEK-E600). Therefore, the application of blended membranes in the all-vanadium redox flow battery is not advantageous. However, the improved barrier properties are likely to be beneficial for their application in vanadium/air-redox flow battery in order to reduce oxygen crossover. In the latter, no V(V) ions can oxidize the blend polymer.en
dc.description.sponsorshipThis research was funded by the German Federal Ministry of Education and Research (BMBF) under the project Tubulair±. Prof. Matthias Wessling appreciates the financial support of the Alexander von Humboldt Foundation .
dc.description.statusPeer reviewed
dc.format.extent7
dc.identifier.citationDavid , O , Percin , K , Luo , T , Gendel , Y & Wessling , M 2015 , ' Proton-exchange membranes based on sulfonated poly(ether ether ketone)/polyaniline blends for all- and air-vanadium redox flow battery applications ' , Journal of Energy Storage , vol. 1 , no. 1 , pp. 65-71 . https://doi.org/10.1016/j.est.2015.01.001
dc.identifier.doi10.1016/j.est.2015.01.001
dc.identifier.issn2352-152X
dc.identifier.urihttps://hdl.handle.net/11556/3280
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=84938597630&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofJournal of Energy Storage
dc.relation.projectIDAlexander von Humboldt-Stiftung, AvH
dc.relation.projectIDBundesministerium für Bildung und Forschung, BMBF
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subject.keywordsPolymer blend
dc.subject.keywordsProton-exchange membrane
dc.subject.keywordsRedox flow battery
dc.subject.keywordsRenewable Energy, Sustainability and the Environment
dc.subject.keywordsEnergy Engineering and Power Technology
dc.subject.keywordsElectrical and Electronic Engineering
dc.subject.keywordsSDG 7 - Affordable and Clean Energy
dc.titleProton-exchange membranes based on sulfonated poly(ether ether ketone)/polyaniline blends for all- and air-vanadium redox flow battery applicationsen
dc.typejournal article
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