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在水电解中使用UiO-66-NH2网络的高性能复合质子交换膜

Jingyu Pan¹, Dezhou Gao¹, Longhui Li²

¹State Key Laboratory of Advanced Separation Membrane Materials, Tiangong University, Tianjin 300387, PR China; School of Textile Science and Engineering, Tiangong University, Tianjin 300387, PR China.

Journal of colloid and interface science

|August 22, 2025

概括

一个新的联网策略改善了水电解中的质子交换膜 (PEM) 的金属有机框架 (MOF). 这种方法增强了MOF分散和质子导电性,显著提高了PEM水电解效率.

科学领域:

材料科学
电化学
化学工程

背景情况:

金属有机框架 (MOF) 是水电解中的质子交换膜 (PEM) 的有希望的质子导体.
挑战包括MOF分散和聚合物矩阵内有限的质子运输途径.

研究的目的:

开发UiO-66-NH2MOF的联网络策略,以提高它们在PEM中的性能.
改进基于MOF的PEM用于水电解的界面兼容性和质子传输.

主要方法:

使用联网策略创建联网UiO-66-NH2 (Si-UiO-66-NH2).
Si-UiO-66-NH2被纳入了纳菲安膜.
复合膜的结构和质子导电性质的特征.
在质子交换膜水电解 (PEMWE) 细胞中评估了性能.

主要成果:

Silane网络抑制了MOF的自我聚合,并在Nafion矩阵中增强了分散.
Si-UiO-66-NH2@Nafion膜的膨胀率低 (在80°C时为15.7%),质子导电率高 (236.4 mS·cm−1).
优化膜将电池电压降至3. 0A·cm-2 (80°C) 的1. 887V,比重新制造的Nafion提高了15. 3%.

结论:

锡兰网络战略有效地解决了PEM中的MOF分散和质子传输限制.
这种方法显著提高了基于MOF的PEM的性能,以实现高效的质子交换膜水电解.
该研究为先进的水电解应用提供了可行的离子体/填充剂界面调制策略.

关键词:

质子交换膜质子传输通道在Silane网络中 -66-NH () 类水的电解

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