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持久的多块聚 ((双基烯)) 离子交换膜与微相分离用于能能量转换

Yichang Ma¹, Chuan Hu², Guiqin Yi¹

¹State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China.

Angewandte Chemie (International ed. in English)

|August 30, 2023

概括

新型无以太的多块离子交换膜 (AEMs) 对能技术显示出前途. 这些新的AEM为离子交换膜燃料电池 (AEMFC) 和水电解 (AEMWE) 提供了高导电性和耐久性.

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
化学工程是化学工程的重要组成部分.

背景情况:

阳离子交换膜燃料电池 (AEMFC) 和水电解 (AEMWE) 对能转化至关重要.
可扩展,高性能离子交换膜 (AEM) 对于将这些技术商业化至关重要,但仍然是一个挑战.

研究的目的:

开发新的无以太的多块离子交换膜 (AEMs) 基于聚二--乙- (PBPA-b-BPPs).
在AEMFC和AEMWE系统中评估这些AEM的性能和耐用性.

主要方法:

合成具有无以太结构的新型多块AEM (PBPA-b-BPP).
包括OH-导电性,胀,性稳定性和机械耐用性在内的AEM属性的表征.
使用开发的AEMs制造和测试AEMFC和AEMWE设备.

主要成果:

开发的AEM表现出高OH导电性 (80°C时162.2mS/cm),低胀,以及出色的性稳定性和机械耐用性.
一个AEMFC设备实现了2.41W/cm2的峰值功率密度,并证明了330小时的现场耐用性.
一个AEMWE设备显示出高性能 (6.25A/cm2在2V,80°C) 和超过3250小时的现场耐用性,电压衰减最小.

结论:

新型PBPA-b-BPP AEM具有形成良好的微相分离结构,从而产生出色的性能.
这些AEM显示出高性能离子交换膜燃料电池和水电解应用的巨大潜力.
开发的AEM代表了能能源转换技术商业化的一个有希望的进步.

关键词:

没有以太的离子交换膜.弗里德尔 - 工艺品聚合物化燃料电池燃料电池的使用方法多块共聚物多聚合物水的电解是水的电解.

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