Blend membranes of sulfonated poly (ether ether ketone) and thermoplastic poly (urethane) for fuel cells

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dc.authoridDönmez, Göknur / 0000-0001-6639-7029
dc.authoridOkutan, Merve / 0000-0002-3110-0675
dc.authoridDeligöz, Hüseyin / 0000-0002-0915-2911
dc.authorwosidDönmez, Göknur / C-9463-2019
dc.authorwosidOkutan, Merve / AAO-9499-2021
dc.contributor.authorDönmez, Göknur
dc.contributor.authorOkutan, Merve
dc.contributor.authorDeligöz, Hüseyin
dc.date.accessioned2021-11-01T15:02:00Z
dc.date.available2021-11-01T15:02:00Z
dc.date.issued2019
dc.departmentHitit Üniversitesi, Mühendislik Fakültesi, Kimya Mühendisliği Bölümü
dc.description.abstractMembranes used in polymer electrolyte membrane fuel cells (PEMFCs) have critical importance because their properties directly affect the performance of fuel cell. For this purpose, blend membranes based on sulfonated poly (ether ether ketone) (sPEEK)-thermoplastic poly (urethane) (TPU) were prepared by solution casting method in different compositions. Generally, sPEEK-TPU blend membranes were thermally resistant up to 190 degrees C due to the presence of sulfonic acid groups regardless blend composition. The proton conductivity (sigma) of blend membranes significantly increased compared to TPU100. After 24h in water, sigma values of blend membranes were found to be 3.9-18.7 mS cm(-1) and rose with sPEEK content. A similar trend was also observed for water uptake (WU %), sulfonation degree (DS%) and ion exchange capacity (IEC). While sPEEK100 membrane has a fragile structure, blending with TPU led to dense, uniform and defect-free membrane surface. Further, all the blend membranes had no obvious phase separation. sPEEK80-TPU20 showed good mechanical properties to be used in PEMFCs with good compatibility. Preliminarily, the methanol permeability of blend membrane containing 40% of sPEEK was found to be 1x10(-11)cm(2)s(-1). Unlike, the blend membranes deteriorated with methanol if sPEEK content was more than 40% in composition. The membrane selectivity value of sPEEK40-TPU60 was found to be 4.7x10(8) S s/cm(3).
dc.identifier.citationDönmez, G., Okutan, M., & Deligöz, H. (2019). Blend membranes of sulfonated poly (ether ether ketone) and thermoplastic poly (urethane) for fuel cells. Journal of Polymer Research, 26(6), 1-12.
dc.identifier.doi10.1007/s10965-019-1792-7
dc.identifier.issn1022-9760
dc.identifier.issn1572-8935
dc.identifier.issue6en_US
dc.identifier.scopus2-s2.0-85065578976
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1007/s10965-019-1792-7
dc.identifier.urihttps://hdl.handle.net/11491/6799
dc.identifier.volume26en_US
dc.identifier.wosWOS:000467468500001
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorOkutan, Merve
dc.language.isoen
dc.publisherSpringer
dc.relation.ispartofJournal Of Polymer Research
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectBlenden_US
dc.subjectProton Conductivityen_US
dc.subjectFuel Cellen_US
dc.subjectPolymer Electrolyte Membraneen_US
dc.subjectSulfonated Poly (ether ether ketone)en_US
dc.subjectThermoplastic Poly (urethane)en_US
dc.titleBlend membranes of sulfonated poly (ether ether ketone) and thermoplastic poly (urethane) for fuel cells
dc.typeArticle

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