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Sulfonated polystyrene-block-poly(ethylene-ran-butylene)-block-polystyrene based membranes containing CuO@g-C3N4 embedded with 2,4,6-triphenylpyrylium tetrafluoroborate for fuel cell applications
Soft Matter ( IF 3.4 ) Pub Date : 2021-08-16 , DOI: 10.1039/d1sm01015h
Berlina Maria Mahimai 1 , Gandhimathi Sivasubramanian 2 , Poonkuzhali Kulasekaran 1 , Paradesi Deivanayagam 1
Affiliation  

New series of polymer composite membranes were prepared from sulfonated polystyrene-block-poly(ethylene-ran-butylene)-block-polystyrene (S-PSEBS) and copper oxide loaded in graphitic carbon nitride (CuO@N-C) embedded with an ionic liquid, 2,4,6-triphenylpyrylium tetrafluoroborate. The structural and physicochemical properties of the composite membranes were studied in detail. Electrolyte membrane loaded with 8.0 wt% of CuO@N-C exhibited the maximum ion-exchange capacity of 3.1 meq. g−1, whereas that of the pristine membrane was restricted to 1.8 meq. g−1. From the TGA profile of the composite membrane, it was found to exhibit adequate thermal stability to be employed as electrolyte in fuel cells. Proton conductivity of the composite membranes was found to be in the range between 0.0179 S cm−1 and 0.0229 S cm−1. Indeed, the substantial results achieved with the S-PSEBS/CuO@N-C composite membranes were indicative of the notable features of the membranes for use in fuel cells.

中文翻译:

含有嵌入 2,4,6-三苯基吡啶鎓四氟硼酸盐的 CuO@g-C3N4 的磺化聚苯乙烯-嵌段-聚(乙烯-ran-丁烯)-嵌段-聚苯乙烯基膜,用于燃料电池应用

聚合物的新系列制备由磺化聚苯乙烯复合膜-聚(乙烯-无规-丁烯) -嵌段-聚苯乙烯(S-pSeBS)和氧化铜在石墨氮化碳加载(CN @的CuO)嵌入有离子液体, 2,4,6-三苯基吡啶鎓四氟硼酸盐。详细研究了复合膜的结构和理化性质。载有 8.0 wt% CuO@NC 的电解质膜表现出 3.1 meq 的最大离子交换容量。g -1,而原始膜仅限于 1.8 meq。克-1. 从复合膜的 TGA 分布来看,发现它表现出足够的热稳定性,可用作燃料电池中的电解质。发现复合膜的质子传导率在0.0179 S cm -1和0.0229 S cm -1之间的范围内。事实上,使用 S-PSEBS/CuO@NC 复合膜取得的实质性结果表明该膜在燃料电池中的显着特点。
更新日期:2021-09-01
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