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/cm^(2)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 AMPEEK 30 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/cm^(2) 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.
作者
陈福海
王丽华
韩旭彤
CHEN Fuhai;WANG Lihua;HAN Xutong(School of Material Science and Engineering,Tiangong University,Tianjin 300387,China;Key Laboratory of Polymer in Extreme Environment,Institute of Chemistry,Chinese Academy of Science,Beijing 100190,China)
出处
《膜科学与技术》
北大核心
2025年第3期1-8,共8页
Membrane Science and Technology
关键词
磺化聚醚醚酮
两性SPEEK聚合物
复合膜
电解水制氢
sulfonated poly(ether ether ketone)
amphoteric SPEEK polymer
composite membrane
electrolysis water for producing hydrogen
作者简介
第一作者: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;通讯作者:王丽华,E-mail:wanglh@iccas.ac.cn;通讯作者:韩旭彤,E-mail:hanxutong@tiangong.edu.cn。
