| Branched polyaromatic AEMs with different conformations |
| Authors： Wang Jiajun, Zhang Qiugen, Zhu Aimei,Liu Qinglin |
| Units： The College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China |
| KeyWords： fuel cells; anion exchange membrane; branched structure |
| ClassificationCode：O632.7 |
| year,volume(issue):pagination： 2023,43(6):20-28 |
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Abstract： |
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A series of branched polyaromatic AEMs with different conformations were prepared by superacid catalysis to investigate the effect of different branched monomer structures on AEMs performance. At similar IECs, the branched structured AEMs exhibited superior ion conductivity and alkali resistance compared to the straight-chain AEMs, the ion conductivity of the flexible branched PBTMPASU membrane had better than that of rigidly branched PBTBPASU and PBTPASU membranes. The OH− conductivity of the flexible branched PBTMPASU membrane reached 128.2 mS/cm at 80 ℃, and after 1080 h of alkali resistance testing in a 2 mol/L NaOH solution, the OH− conductivity retained 94.1%. In addition, the single cell prepared based on PBTMPASU membranes achieved a peak power density of 559.9 mW/cm2 at a current density of 1167.0 mA/cm2. |
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Funds： |
| 国家自然基金面上项目（22078272 & 22278340） |
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AuthorIntro： |
| 王家军（1995-），男，河南省周口市人，在读硕士研究生，主要从事功能膜材料的制备 |
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Reference： |
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