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硫化聚 (乙) /酸酸铁复合材料作为燃料电池的有希望的多电解质膜

Laurentiu Baltag¹, Petrisor Samoila¹, Corneliu Cojocaru¹

¹Romanian Academy, "Petru Poni" Institute of Macromolecular Chemistry, 41A Aleea Grigore Ghica Voda, 700487 Iasi, Romania.

|November 27, 2025

概括

新的复合膜由硫化聚乙乙 (SPEEK) 和用酸添加的螺旋铁素纳米颗粒制成. 这些新的聚合物电解质膜 (PEMs) 在燃料电池应用中显示出增强的质子导电性.

科学领域:

材料科学材料科学材料科学
电化学电化学电化学
聚合物科学聚合物科学

背景情况:

硫化聚乙烯 (SPEEK) 是燃料电池 (PEMFC) 中聚合物电解质膜 (PEM) 的关键材料.
提高SPEEK的质子导电性对于提高燃料电池性能至关重要.
加入无机填充剂可以改变SPEEK膜的特性.

研究的目的:

为了合成和描述新型的SPEEK/酸添加螺旋铁酸盐复合膜.
评估化费里特纳米颗粒对SPEEK膜的物理,化学和质子导电性质的影响.
评估这些复合膜的适用性,作为Nafion等传统PEM的替代品.

主要方法:

合成的 ZnFe1.96Pr0.04O4 纳米颗粒通过超声波助散到 SPEEK 聚合物溶液中.
溶液造方法用于制造含有不同填充剂含量的复合膜 (高达5%).
使用SEM,DMA,水吸收,离子交换能力,化学稳定性测试,热分析,拉伸强度测试和宽带介电光谱学进行表征.

主要成果:

复合膜的特性 (形态,吸水,离子交换能力,化学和热稳定性,抗拉强度) 取决于填充剂的含量.
复合膜的质子导电性在80°C时在0.21-2.82 × 10−2 S/cm之间.
具有0.25%重量% ZnFe1.96Pr0.04O4的膜表现出最高的质子导电性 (3.41 × 10−2 S/cm在60°C),表现优于Nafion117.

结论:

在SPEEK/praseodymium添加螺旋铁酸盐复合膜中,燃料电池应用具有有前途的性能.
与基础SPEEK聚合物相比,添加化费里特纳米粒子显著提高了质子导电性.
这些新型复合膜是传统PEM的可行替代品,为PEMFC提供了更好的性能.

关键词:

复合质子交换膜是一种复合质子交换膜.添加的铁酸盐添加剂燃料电池是指燃料电池的使用方式.质子导电性的质子导电性.溶液造是一种解决方法.稳定的稳定性稳定的稳定性硫化聚 (乙乙基) 是一种硫化聚 (乙乙基)

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