Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/7290
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dc.contributor.authorFarrukh, Aleeza-
dc.contributor.authorAshraf, Fatima-
dc.contributor.authorKaltbeitzel, Anke-
dc.contributor.authorLing, Xiao-
dc.contributor.authorWagner, Manfred-
dc.contributor.authorDuran, Hatice-
dc.contributor.authorYameen, Basit-
dc.date.accessioned2021-09-11T15:56:16Z-
dc.date.available2021-09-11T15:56:16Z-
dc.date.issued2015en_US
dc.identifier.issn1759-9954-
dc.identifier.issn1759-9962-
dc.identifier.urihttps://doi.org/10.1039/c5py00514k-
dc.identifier.urihttps://hdl.handle.net/20.500.11851/7290-
dc.description.abstractPolyelectrolyte membranes showing proton conductivity at moderate levels of relative humidity and temperatures are essential for the development of polyelectrolyte membrane fuel cells (PEMFCs). Herein, monomethoxy oligoethylene glycol methacrylate derived polymer brush functionalized silica nanoparticles (SiO2 NPs) are presented as humidifying-nanoadditives for the fabrication of Nafion nanocomposite membranes, exhibiting improved proton conductivities at moderate levels of relative humidity and temperatures. Polymer brush functionalized SiO2 NPs (SiO2-polymer-brush), fabricated via surface initiated atom transfer radical polymerization (SI-ATRP), are dispersed in the Nafion resin solution, and nanocomposite membranes (Nafion/SiO2-polymer-brush) are fabricated via solution casting. For comparison, composite membranes of Nafion are also prepared with bare SiO2 NPs. Spectroscopic measurements confirm the presence of polymer brushes in the final membranes and demonstrate increased water uptake in membranes with polymer brush-functionalized nanocomposite membranes. Electrochemical impedance analyses reveal that 1 wt% of functionalized SiO2 NPs is sufficient to achieve Nafion nanocomposite membranes with superior proton conductivities at ambient and moderately high temperatures over the entire range of relative humidity (RH). This study presents a facile avenue to membranes with superior proton conductivities under moderate levels of RH and temperature, and provides important insights into the scope of nanocomposite PEMs for fuel cell applications.en_US
dc.description.sponsorshipHigher Education Commission (HEC) of PakistanHigher Education Commission of Pakistan [20-1740/RD/10/3368, 20-1799/RD/10-5302]; LUMS Startup Grant; 'People' Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme FP7 [607842]; Emmy Noether program of the German Research Foundation (DFG)German Research Foundation (DFG) [DO 1691/1-1]; Marie Curie FoundationEuropean Commission [CIG322284]en_US
dc.description.sponsorshipB.Y. acknowledges funding from The Higher Education Commission (HEC) of Pakistan (project no. 20-1740/R&D/10/3368 and 20-1799/R&D/10-5302) and the LUMS Startup Grant. The research leading to these results has received funding from the 'People' Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme FP7/2007-2013/under REA grant agreement no. [607842]. K.F.D. acknowledges generous support through the Emmy Noether program of the German Research Foundation (DFG) #DO 1691/1-1, and S.H.P. acknowledges funding from the Marie Curie Foundation #CIG322284.en_US
dc.language.isoenen_US
dc.publisherRoyal Soc Chemistryen_US
dc.relation.ispartofPolymer Chemistryen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subject[No Keywords]en_US
dc.titlePolymer Brush Functionalized Sio2 Nanoparticle Based Nafion Nanocomposites: a Novel Avenue To Low-Humidity Proton Conducting Membranesen_US
dc.typeArticleen_US
dc.departmentFaculties, Faculty of Engineering, Department of Material Science and Nanotechnology Engineeringen_US
dc.departmentFakülteler, Mühendislik Fakültesi, Malzeme Bilimi ve Nanoteknoloji Mühendisliği Bölümütr_TR
dc.identifier.volume6en_US
dc.identifier.issue31en_US
dc.identifier.startpage5782en_US
dc.identifier.endpage5789en_US
dc.authorid0000-0001-6203-3906-
dc.authorid0000-0002-3794-246X-
dc.authorid0000-0002-4562-6088-
dc.authorid0000-0001-6203-3906-
dc.authorid0000-0002-0711-0419-
dc.authorid0000-0002-5994-8440-
dc.identifier.wosWOS:000358766800033en_US
dc.identifier.scopus2-s2.0-84938070709en_US
dc.institutionauthorDuran Durmuş, Hatice-
dc.identifier.doi10.1039/c5py00514k-
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.identifier.scopusqualityQ1-
item.openairetypeArticle-
item.languageiso639-1en-
item.grantfulltextnone-
item.fulltextNo Fulltext-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.cerifentitytypePublications-
crisitem.author.dept02.6. Department of Material Science and Nanotechnology Engineering-
Appears in Collections:Malzeme Bilimi ve Nanoteknoloji Mühendisliği Bölümü / Department of Material Science & Nanotechnology Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
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