Enhanced proton conduction by post-synthetic covalent modification in a porous covalent framework
| Title | Enhanced proton conduction by post-synthetic covalent modification in a porous covalent framework |
| Publication Type | Journal Article |
| Year of Publication | 2017 |
| Authors | Samanta, P, Desai, AV, Anothumakkool, B, Shirolkar, MM, Karmakar, A, Kurungot, S, Ghosh, SK |
| Journal | Journal of Materials Chemistry A |
| Volume | 5 |
| Issue | 26 |
| Pagination | 13659-13664 |
| Date Published | JUL |
| Type of Article | Article |
| Abstract | A highly chemically stable porous covalent framework (PCF-1) based on ether linkages has been synthesized, which exhibits no loss up to similar to 500 degrees C along with retention of integrity under acidic, basic and oxidative reagent conditions. Owing to its thermal and chemical stability, post-synthetic covalent modification was executed for the introduction of pendant sulphonic acid (-SO3H) groups. The covalently modified compound (PCF-1-SO3H) presents a remarkably high conductivity (ca. 0.026 S cm(-1)), with an similar to 130 fold enhancement in proton conductivity over the parent compound. This value is comparable with those of commercially used Nafion-based proton conducting materials and stands as the highest known value in the regime of post-synthetically modified porous organic frameworks. It is noteworthy to mention that PCF-1 is stable in both acidic and alkaline media, which is not commonly observed for most of the porous materials trialed as proton conducting materials, including metal organic frameworks. |
| DOI | 10.1039/c7ta00964j |
| Type of Journal (Indian or Foreign) | Foreign |
| Impact Factor (IF) | 8.262 |
Divison category:
Physical and Materials Chemistry
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