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Sulfonated Microporous Polymer Membranes with Fast and Selective Ion Transport for Electrochemical Energy Conversion and Storage.

Authors :
Zuo, Peipei
Li, Yuanyuan
Wang, Anqi
Tan, Rui
Liu, Yahua
Liang, Xian
Sheng, Fangmeng
Tang, Gonggen
Ge, Liang
Wu, Liang
Song, Qilei
McKeown, Neil B.
Yang, Zhengjin
Xu, Tongwen
Source :
Angewandte Chemie; 6/8/2020, Vol. 132 Issue 24, p9651-9660, 10p
Publication Year :
2020

Abstract

Membranes which allow fast and selective transport of protons and cations are required for a wide range of electrochemical energy conversion and storage devices, such as proton‐exchange membrane (PEM) fuel cells (PEMFCs) and redox flow batteries (RFBs). Herein we report a new approach to designing solution‐processable ion‐selective polymer membranes with both intrinsic microporosity and ion‐conductive functionality. Polymers are synthesized with rigid and contorted backbones, which incorporate hydrophobic fluorinated and hydrophilic sulfonic acid functional groups, to produce membranes with negatively charged subnanometer‐sized confined ionic channels. The ready transport of protons and cations through these membranes, and the high selectivity towards nanometer‐sized redox‐active molecules, enable efficient and stable operation of an aqueous alkaline quinone redox flow battery and a hydrogen PEM fuel cell. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00448249
Volume :
132
Issue :
24
Database :
Complementary Index
Journal :
Angewandte Chemie
Publication Type :
Academic Journal
Accession number :
143549319
Full Text :
https://doi.org/10.1002/ange.202000012