Peer-reviewed veterinary case report
Stronger anion-exchange membrane improves water electrolysis stability
By Gong Y et al.·2026·College of Chemical Engineering, China·View original on Europe PMC →
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Original publication title: Mechanically Reinforced Anion-Exchange Composite Membrane with Improved Interface Integrity for Water Electrolysis.
Plain-English summary
This study focused on improving a special type of membrane used for producing hydrogen from water, which is important for making this process cheaper. Researchers created a new membrane using a strong mesh for support, a polymer that helps conduct ions, and a binder to hold everything together. The new membrane is much stronger and more stable than previous versions, allowing it to work effectively for a long time without significant issues. Overall, the improvements made this membrane a promising option for hydrogen production, showing that it can operate well for extended periods.
Abstract
Anion exchange membrane water electrolysis (AEMWE) is promising for low-cost hydrogen production, but its progress is limited by the weak mechanical strength and structural instability of polymer membranes. Here, a PPS-PBP/PVA composite membrane was developed using a polyphenylene sulfide (PPS) mesh as the mechanical scaffold, poly(biphenyl piperidinium) (PBP) as the ion-conducting polymer, and poly(vinyl alcohol) (PVA) as an interfacial binder. The membrane shows significantly enhanced tensile strength and puncture resistance, reduced swelling, and improved interfacial integrity. The optimized PPS-PBP/PVA (10 wt%) membrane delivers 6 A cm<sup>-2</sup> at 2.16 V in 1 M KOH at 80 °C and maintains stable operation for 500 h at 1 A cm<sup>-2</sup> with only a slight voltage increase. The results demonstrate that reinforcement coupled with interface regulation is an effective approach to constructing robust and durable composite membranes for AEMWE.
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Search related cases →Original publication on Europe PMC: https://europepmc.org/article/MED/41745508