Morphological investigation of nafion and nafion-SiOsub(2)-hybrid membranes by SAXS analysis in dry and wet environmentas
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2009
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INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS, 11th
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– Nafion-SiO2 hybrid membranes were prepared by the incorporation of SiO2 into commercial Nafion 115 for applications as
electrolytes in proton exchange membrane fuel cells (PEMFC) operating at high temperature (~130ºC). These hybrids were produced
by conventional in-situ sol-gel method using Tetraethyl Ortosilicate (TEOS) as the silicon precursor, and some synthesis parameters,
such as the nature of alcohol (methanol, ethanol, and 2-propanol) used as solvent in the sol-gel reaction were evaluated. The
morphological changes in polymeric matrix were analyzed by water-uptake and small angle X-ray scattering measurements (SAXS).
These hybrids were tested in single cells by polarization curves at high temperature.
Como referenciar
DRESCH, M.A.; MATOS, B.R.; FONSECA, F.C.; LINARDI, M.; REY, J.F.Q.; SANTIAGO, E.I. Morphological investigation of nafion and nafion-SiOsub(2)-hybrid membranes by SAXS analysis in dry and wet environmentas. In: INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS, 11th, September 20-25, 2009, Rio de Janeiro, RJ. Abstract... Disponível em: http://repositorio.ipen.br/handle/123456789/22863. Acesso em: 30 Dec 2025.
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