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两性SPEEK复合膜的制备及其质子交换膜电解水制氢性能研究

作者：陈福海¹，²，王丽华²，韩旭彤¹

单位： 1. 天津工业大学材料科学与工程学院，天津 300387； 2. 中国科学院化学研究所极端环境高分子院重点实验室，北京 100190

关键词：磺化聚醚醚酮；两性SPEEK聚合物；复合膜；电解水制氢

DOI号： 10.16159/j.cnki.issn1007-8924.2025.03.001

分类号： TQ317； TQ116.2+1

出版年,卷(期):页码： 2025,45(3):1-8

摘要：

将带氨基的分子侧链接枝到磺化聚醚醚酮（SPEEK）上，制备出分子链上同时含有磺酸基团和胺化基团的两性SPEEK聚合物（SNPEEK），并通过调控SPEEK及SNPEEK的比例，制备出系列两性SPEEK复合膜（AMPEEK）。测试AMPEEK膜的质子电导率、吸水率、溶胀率及机械性能等性能。结果表明,当SNPEEK在溶质中的质量分数为30%时，AMPEEK-30膜的综合性能最好，将其组装成膜电极用于质子交换膜电解水制氢（PEMWE）中，在2 V电压下可达1.15 A/cm2的高电流密度，是SPEEK原膜的2.3倍，是Nafion115膜的3.3倍，PEMWE性能得到大幅度提升。

In this study, the aminated molecular side link branch was linked to sulfonated polyetheretherketone (SPEEK), and amphoteric SPEEK polymer (SNPEEK) containing sulfonic group and aminated group in the molecular chain was prepared. A series of amphoteric SPEEK composite membranes (AMPEEK) were prepared by adjusting the ratio of SPEEK and SNPEEK. The mechanical properties, proton conductivity, water absorption and swelling rate of AMPEEK membrane were tested. It was found that when the proportion of SNPEEK was 30%, the comprehensive performance of AMPEEK30 membrane was the best. When it was assembled into a membrane electrode for proton exchange membrane water electrolysis (PEMWE), the high current density of 1.15 A/cm2 was achieved at a voltage of 2 V, which was 2.3 times that of SPEEK membrane and 3.3 times that of Nafion115 membrane. The performance of pemwe was greatly improved.

基金项目：

作者简介：

陈福海（1999-），男，山西大同人，硕士研究生，主要研究方向为质子交换膜

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