Studies of sulfonated polyphenylene membranes containing benzophenone moiety for PEMFC
| Autor: | Whan Gi Kim, Taehoon Hong, Soonho Lee, Hohyoun Jang, Md. Awlad Hossain, Hyunchul Ju, Tae-Whan Hong, Youngdon Lim |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
chemistry.chemical_classification
Renewable Energy Sustainability and the Environment Energy Engineering and Power Technology Proton exchange membrane fuel cell Ether Polymer Condensed Matter Physics chemistry.chemical_compound Fuel Technology Membrane chemistry Nafion Polymer chemistry Benzophenone Moiety Solubility |
| Zdroj: | International Journal of Hydrogen Energy. 39:21595-21600 |
| ISSN: | 0360-3199 |
| DOI: | 10.1016/j.ijhydene.2014.06.160 |
| Popis: | The sulfonated polyphenylenes containing benzophenone structure (sulfonated Parmax 1200, S-Parmax) were prepared by sulfonation reaction of Parmax 1200 with 30% fuming sulfuric acid, and degree of sulfonation was controlled by sulfonation reaction time. These polymers have all carbon structure without ether linkages that have the possibility of attack by nucleophiles (made by PEMFC operating system). The polyphenylene structure of Parmax provides a stiff and resistant backbone, whereas the pendant benzoyl group enables the solubility of the material, and also provides sites for chemical modifications. The structure properties of the synthesized polymers were investigated by 1H NMR spectroscopy. The membranes were studied by ion exchange capacity (IEC), water uptake, and proton conductivity. These membranes deterioration test was performed by Fenton reagent, and compared with normal sulfonated poly(ether sulfone)s and Nafion. The power densities of membranes were performed by single cell. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect