基于离子液接种的基/聚乙醇/四级功能化二氧化为聚合物电解质膜燃料电池的坚固的离子交换膜
Hak Su Jang1, Ha Neul Jeong2, Sang Min Eom2
1Department of Polymer Science and Engineering, School of Materials Science and Engineering, Gyeongsang National University, Jinju 52828, Republic of Korea.
International journal of biological macromolecules
|February 8, 2024
概括
新的离子液体移植酸盐膜显示了燃料电池的增强性能. 这些先进的离子交换膜 (AEM) 提供了更好的导电性和稳定性,满足应用要求.
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
- 聚合物化学 聚合物化学
背景情况:
- 四元化奇托 (QCS) 和聚乙醇 (PVA) 混合物正在探索离子交换膜 (AEM).
- 离子液体 (ILs) 和四级化 (QSiO2) 可以增强AEM的特性.
- 开发稳定和导电的AEM对于燃料电池应用至关重要.
研究的目的:
- 为了合成和描述新的IL-QCS/PVA/QSiO2复合膜.
- 为了评估这些膜作为燃料电池的AEM的性能.
- 为了研究四级化二氧化剂量对膜性质的影响.
主要方法:
- 复合膜使用1 - 甲基-1 - 甲基基化物 (Br-6-MPRD) 接种的QCS/PVA混合物和甘三甲基氨基化物 (GTMAC) 四级化 (QSiO2) 制备.
- 膜与甲 (GA) 交联,并转化为氧化物形式.
- 测量了离子导电性,水吸收,膨胀率,热,机械和化学稳定性.
主要成果:
- 与原始膜相比,IL-QCS/PVA/QSiO2膜表现出较好的离子导电性和适度的水吸收/膨胀.
- IL-QCS/PVA/QSiO2-7膜在80°C时实现了78mS cm−1的氧离子导电性,在60°C时达到115mW cm−2的功率密度.
- 复合膜表现出极好的热,机械和化学稳定性.
结论:
- 开发的IL-QCS/PVA/QSiO2复合膜在AEM燃料电池应用中显示出有前途的性能.
- 加入四级化二氧化显著增强了基于QCS/PVA的AEMs的性能.
- 这些材料为下一代燃料电池技术提供了可行的途径.
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