Nafion-layered silicate nanocomposite membrane for fuel cell application
| Autor: | Christophe Pagnoulle, Jean-Michel Thomassin, Giuseppe Caldarella, Robert Jérôme, Albert Germain, Didier Bizzari |
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| Rok vydání: | 2004 |
| Předmět: |
chemistry.chemical_classification
Nanocomposite Materials science Polymers and Plastics General Chemical Engineering Proton exchange membrane fuel cell Electrolyte Conductivity Sulfonic acid chemistry.chemical_compound Membrane chemistry Nafion Physical and Theoretical Chemistry Composite material Methanol fuel |
| Zdroj: | e-Polymers. 4 |
| ISSN: | 1618-7229 2197-4586 |
| Popis: | Direct methanol fuel cells (DMFCs) using a proton exchange membrane as electrolyte is an attractive option for electricity generation. The most widely used membrane in the DMFC system is based on a perfluorinated polymer bearing sulfonic acid functions like Nafion ®. The latter combines chemical, mechanical and thermal stability and high protonic conductivity but shows elevated methanol permeability. We propose the preparation of a novel type of hybrid membranes to tentatively solve this problem. This innovative material results from the homogeneous dispersion of a nano-scaled inorganic filler within Nafion. The filler consists of stacks of negatively charged alumino-silicate layers (Cloisite), with a positive counter-ion in the interlamellar space. The purpose of the addition of this filler is to decrease methanol diffusion through the polymer membrane without decreasing too much the ionic conductivity. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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