Please use this identifier to cite or link to this item: https://hdl.handle.net/10216/103059
Author(s): Paula Nunes Oliveira
Margarida Catarino
Lúcia Brandão
David Alfredo Pacheco Tanaka
Adélio M. Mendes
Carmem Maria Oliveira Müller
José Roberto Bertolino
Alfredo Tibúrcio N. Pires
Title: Preparation and characterization of crosslinked PVAL membranes loaded with boehmite nanoparticles for fuel cell applications
Issue Date: 2014
Abstract: Composite proton conducting membranes were prepared by doping the membrane, prepared by crosslinking poly(vinylalcohol) with sulfosuccinic acid (SSA), with boehmite [aluminum oxyhydroxide or c-AlO(OH)]. The effect of the SSA and boehmitecontent on the membrane performance was studied and the results showed that the values for the ion exchange capacity (IEC) of themembranes were in the range of 0.45-4.80 mmol g21, the water content and the Young's modulus were dependent on the amount ofSSA and nanoparticles. The proton conductivity was in the range of 1024 to 1022 S cm21 at 25C and was directly related to thequantity of sulfonate groups present in the membrane, while the hydrogen permeability at 30C was in the range of 10213 to 10212mol cm s21 cm22 bar. The proton exchange membrane fuel cell tests indicated that the composite membranes have good proton conductivity and very low hydrogen permeability.
Subject: Engenharia química, Engenharia química
Chemical engineering, Chemical engineering
Scientific areas: Ciências da engenharia e tecnologias::Engenharia química
Engineering and technology::Chemical engineering
URI: https://hdl.handle.net/10216/103059
Related Information: info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e Tecnologia/Projectos de I&DT em Todos os Domínios Científicos/PTDC/EQU-EQU/104217/2008/Integração de células de combustível de electrólito de membrana polimérica com membranas de paládio de elevada eficiência/PTDC/EQU-EQU/104217/2008
info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e Tecnologia/Projectos de I&DT em Todos os Domínios Científicos/PTDC/CTM/108454/2008/Propostas inovadoras à permeabilidade do metanol e actividade do catalisador em células de combustível de electrólito de membrana com alimentação directa de metano/PTDC/CTM/108454/2008
Document Type: Artigo em Revista Científica Internacional
Rights: restrictedAccess
Appears in Collections:FEUP - Artigo em Revista Científica Internacional

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