Sulfonated aromatic ionomers: Analysis of proton conductivity and proton mobility
| Autor: | Maria Luisa Di Vona, Philippe Knauth |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Proton conductivity
Materials science Proton Composite number 02 engineering and technology Conductivity 010402 general chemistry 01 natural sciences Tortuosity Polymer chemistry General Materials Science Relative humidity Proton mobility Fuel cells Composites chemistry.chemical_classification Polymer electrolytes Settore CHIM/07 - Fondamenti Chimici delle Tecnologie food and beverages General Chemistry Polymer 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Chemical engineering chemistry Percolation 0210 nano-technology |
| Zdroj: | Solid State Ionics. 225:255-259 |
| ISSN: | 0167-2738 |
| DOI: | 10.1016/j.ssi.2012.01.043 |
| Popis: | Recent progress on proton-conducting Sulfonated Aromatic Polymers is reviewed, including composite and cross-linked ionomers. Proton conductivity and water uptake, studied as function of relative humidity, can be combined to calculate the effective proton mobility in ionomers. The plot of proton mobility versus proton concentration shows common features for various ionomers, which can be related to percolation and tortuosity of hydrated nanometric channels. Proton conductivity can even be enhanced in cross-linked ionomers, possibly due to a reduction of channel tortuosity. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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