Hybrids Membranes with Potential Use in Fuel Cells – Part 1: Sulphonated Poly (etherimide) Nanocomposites

Polimeros-Ciencia E Tecnologia Volume: 24 Issue: 4 Pages: 464-473 Published: 2014

FTIR de amostras (a) com adição de sepiolita não modificada e (b) comparação entre os mesmos teores de argila modificada e não modificada.

Writers: Ana C. de O. Gomes, Beatriz Uieda, Andre A. Tamashiro, Adhemar C. Ruvolo Filho, Luiz A. Pessan, Caio M. Paranhos

Keywords:  Polymeric membrane; nanocomposite; fuel cell; polymeric electrolyte

Abstract:  Fuel Cells based in polymeric membranes are an alternative for the conventional energetic matrices based on fossil fuel and generation of energy with minimum environmental impact. However, polymeric membranes available nowadays for this specific use have some disadvantages, like low efficiency and cell durability. The aim of this work was to prepare and to characterize hybrid polymeric membranes for application as hydrogen fuel cell electrolytes. Membranes based in poly(ether imide) were chemically modified with sulfur groups to increase their ionic conductivity. The incorporation of mineral clay in nanometric scale aims to increase their mechanical and thermal properties. The membranes were evaluated by FTIR, DSC, TGA, DMA, density, hot water uptake, water vapor transmission and ionic migration resistance. The results leaded to a better structure versus properties balance, aiming the high performance of the obtained membranes.

DOI: 10.1590/0104-1428.1131

See PDF: Hybrids Membranes with Potential Use in Fuel Cells – Part 1: Sulphonated Poly (etherimide) Nanocomposites

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