Control of ion exchange capacity in block copolymer binders enables high hydroxide conductivity at low swelling and improves catalyst activity for AEM water electrolysis

Journal of Materials Chemistry A 2026 Open access

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Authors: Richard J. Weber, Malte Klingenhof, Oleksandr Dolynchuk, Luis Hagner, Lukas Metzler, Susanne Koch, Mario Zerson, R. Magerle, Peter Strasser, Severin Vierrath, Michael Sommer
DOI: 10.1039/d6ta00653a
Cited by: 1
References: 70

Abstract

Varying the hydrophilic/hydrophobic ratio in block copolymer binders for AEMWE allows to control ion exchange capacity, swelling and ionic conductivity, leading to superior single-cell performance with current densities of 3800 mA cm −2 at 2 V.

Fields of Study & Subjects

Fuel Cells and Related Materials Membrane-based Ion Separation Techniques Advanced Battery Materials and Technologies

Publication details

Journal / source
Journal of Materials Chemistry A
Publisher
Royal Society of Chemistry (RSC)
Volume
14
Issue
38
Pages
25447–25459
Publication date
1 January 2026
Language
EN