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dc.contributor.authorIon-Ebrasu, Daniela
dc.contributor.authorPollet, Bruno
dc.contributor.authorCaprarescu, Simona
dc.contributor.authorChitu, Alin
dc.contributor.authorTrusca, Roxana
dc.contributor.authorNiculescu, Violeta
dc.contributor.authorGabor, Raluca
dc.contributor.authorCarcadea, Elena
dc.contributor.authorVarlam, Mihai
dc.contributor.authorVasile, Bogdan Stefan
dc.date.accessioned2021-02-12T13:24:20Z
dc.date.available2021-02-12T13:24:20Z
dc.date.created2020-05-18T10:40:15Z
dc.date.issued2020
dc.identifier.citationInternational Journal of Hydrogen Energy. 2020, 45 (35), 17057-17066.en_US
dc.identifier.issn0360-3199
dc.identifier.urihttps://hdl.handle.net/11250/2727811
dc.description.abstractThe main issues facing the development of Anion Exchange Membranes (AEM) are the low hydroxide ion (OH−) conductivity compared to protons (H+), and the thermal and chemical stability. Based on the its unique two-dimensional structure, graphene is estimated to be one of the best solutions for the hydrogen ions (H+ and OH−) selectivity and conductivity improvement. This work presents the graphene-composite membranes (AEMGrs) preparation and characterization in comparison with commercial FAA3-20® and FAA3-30® membranes from Fumatech. Various amounts of commercial graphene were incorporated into the Fumion® FAA-3 in NMP (10%), solutions which were then used to fabricate new AEMs by the Doctor-Blade (DB) method. Commercial and graphene-composite AEMs were studied by infrared spectroscopy with Fourier Transformation (FTIR), thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC), scanning electron microscopy (SEM), dynamic mechanical analysis (DMA), water uptake (WU), ion exchange capacity (IEC), and in plane four-points electrochemical impedance spectroscopy (4p-EIS). The results indicated that the composite membranes containing 50 mg of graphene exhibited an improved IEC (3.16 mmol g−1) and OH− conductivity (113.27 mS cm−1) at 80 °C measured in 0.01 M KOH (pH = 12).en_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/deed.no*
dc.titleGraphene inclusion effect on anion-exchange membranes properties for alkaline water electrolyzersen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionacceptedVersionen_US
dc.source.pagenumber17057-17066en_US
dc.source.volume45en_US
dc.source.journalInternational Journal of Hydrogen Energyen_US
dc.source.issue35en_US
dc.identifier.doi10.1016/j.ijhydene.2020.04.195
dc.identifier.cristin1811438
dc.description.localcode© 2020. This is the authors’ accepted and refereed manuscript to the article. Locked until 15/5-2021 due to copyright restrictions. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/en_US
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Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal
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