Issue 35, 2024

A poly(binaphthyl-co-terphenyl quinuclidinium) anion exchange membrane with excellent alkaline stability and anion conductivity

Abstract

As a crucial component of renewable energy water electrolyzers and fuel cells, the existing landscape reveals a scarcity of anion exchange membranes (AEMs) with comprehensive high performance for the commercial implementation of the above devices. In this study, we engineered an AEM with remarkable attributes, including exceptional alkaline stability (no degradation in conductivity observed for over 2556 h in a 10 M NaOH solution at 80 °C), enhanced OH conductivity (measured at 170.21 mS cm−1 at 80 °C), superior dimensional stability (swelling ratio <8% in pure water), and robust mechanical characteristics (possessing a tensile strength measuring 35.5 MPa and an elongation at break of 22%). Utilizing this AEM in a water electrolyzer results in higher electric current densities (2.2 A cm−2 at 2.0 V) and exceptional durability when assembled with Ni–Fe and Ni–Mo foam electrodes.

Graphical abstract: A poly(binaphthyl-co-terphenyl quinuclidinium) anion exchange membrane with excellent alkaline stability and anion conductivity

Supplementary files

Article information

Article type
Paper
Submitted
09 May 2024
Accepted
22 Jul 2024
First published
08 Aug 2024

J. Mater. Chem. A, 2024,12, 23570-23576

A poly(binaphthyl-co-terphenyl quinuclidinium) anion exchange membrane with excellent alkaline stability and anion conductivity

H. Zhang, X. He, H. Feng, C. Li and M. Li, J. Mater. Chem. A, 2024, 12, 23570 DOI: 10.1039/D4TA03241A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements