Preparation and characterization of crosslinked PVAL membranes loaded with boehmite nanoparticles for fuel cell applications

• Type: Article in International Scientific Journal
• Date: 2014

Authors

Paula Nunes Oliveira (Author) FEUP; Margarida Catarino (Author) FEUP; Lúcia Brandão (Author) FEUP; David Alfredo Pacheco Tanaka (Author) FEUP; Adélio M. Mendes (Author) FEUP; Carmem Maria Oliveira Müller (Author) Other; José Roberto Bertolino (Author) Other; Alfredo Tibúrcio N. Pires (Author) Other

Journal

Title: Journal of Applied Polymer Science

Vol. 131 No. 8

ISSN: 0021-8995

Publisher: Wiley-Blackwell

Indexing

ISI Web of Knowledge - 11 Citations

ISI Web of Science

Scopus - 10 Citations

INSPEC

Scientific classification

FOS: Engineering and technology > Chemical engineering

CORDIS: Technological sciences > Engineering > Chemical engineering

Associated Projects

PTDC/EQU-EQU/104217/2008 - Integração de células de combustível de electrólito de membrana polimérica com membranas de paládio de elevada eficiência

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

Other information

Authenticus ID: P-009-B2Y

DOI: 10.1002/app.40148

Abstract (EN): Composite proton conducting membranes were prepared by doping the membrane, prepared by crosslinking poly(vinyl alcohol) with sulfosuccinic acid (SSA), with boehmite [aluminum oxyhydroxide or c-AlO(OH)]. The effect of the SSA and boehmite content on the membrane performance was studied and the results showed that the values for the ion exchange capacity (IEC) of the membranes were in the range of 0.45–4.80 mmol g21 , the water content and the Young’s modulus were dependent on the amount of SSA and nanoparticles. The proton conductivity was in the range of 1024 to 1022 S cm21 at 25C and was directly related to the quantity of sulfonate groups present in the membrane, while the hydrogen permeability at 30C was in the range of 10213 to 10212 mol 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.

Language: English

Type (Professor's evaluation): Scientific

Notes: Publicação abrangida pelo Journal Citation Reports 2015

No. of pages: 11