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dc.creatorVasco Silva
dc.creatorValter Silva
dc.creatorAdélio Mendes
dc.creatorLuis Madeira
dc.creatorSuzana Nunes
dc.description.abstractLiquid feed direct methanol fuel cells (DMFCs)employing proton-exchange membranes (PEMs)are promising candidates for portable powerapplications [1]. However, the use of perfluorinatedmembranes as polymer electrolyte leadsto a significant decrease in the fuel cell Faradayefficiency due to methanol crossover [1]. Nonfluorinatedmembranes based on sulfonatedpoly(ether ether ketone) (sPEEK) have beenpresented as promising materials due to theirhigh proton conductivity [2]. Also, in order toimprove the membrane properties for DMFCapplications, the single-phase sPEEK polymerwas modified by the incorporation of zirconiumoxide (ZrO2), which decreases the methanolpermeation [3]. Furthermore, the membrane propertiesare also influenced by proper samplepre-treatment. The present study aims to characterizesPEEK membranes and to perform a criticalstudy regarding the pre-treatment effects onthe membrane properties. Nafion® 1135 (fromAldrich) was used as reference material.
dc.subjectEngenharia química, Engenharia química
dc.subjectChemical engineering, Chemical engineering
dc.titlePre-Treatment Effect on the Transport Properties of Sulfonated Poly(ether ether ketone) Membranes for DMFC Applications
dc.typeArtigo em Revista Científica Internacional
dc.contributor.uportoFaculdade de Engenharia
dc.subject.fosCiências da engenharia e tecnologias::Engenharia química
dc.subject.fosEngineering and technology::Chemical engineering
Appears in Collections:FEUP - Artigo em Revista Científica Internacional

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