| Autor: |
Tamas Nemeth, Mikhail Agrachev, Gunnar Jeschke, Lorenz Gubler, Thomas Nauser |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
The journal of physical chemistry. C, Nanomaterials and interfaces. 126(37) |
| ISSN: |
1932-7447 |
| Popis: |
Sulfonated aromatic hydrocarbon-based ionomers are potential constituents of next-generation polymer electrolyte fuel cells (PEFCs). Widespread application is currently limited due to their susceptibility to radical-initiated oxidative degradation that, among other intermediates, involves the formation of highly reactive aromatic cation radicals. The intermediates undergo chain cleavage (dealkylation/dearylation) and the loss of protogenic sulfonate groups, all leading to performance loss and eventual membrane failure. Laser flash photolysis experiments indicated that cation radicals can also be formed |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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