Highly Stable Poly(diphenyl sulfide piperidine) Anion Exchange Membrane Grafting with Flexible Side-Chain Cationic Group for Water Electrolysis

ACS Applied Polymer Materials, Journal Year: 2024, Volume and Issue: 6(22), P. 13937 - 13948

Published: Nov. 8, 2024

Aryl-piperidine polymers are preferred for anion exchange membranes (AEMs) due to their excellent designability and alkaline resistance stability. In the present work, a poly(diphenyl sulfide piperidine) polymer backbone, distinct from conventional poly(biphenyl piperidine), is synthesized via superacid-catalyzed reaction. Subsequently, series of AEMs (PPSP-xPip) achieved by grafting cationic groups with long flexible alkyl chains onto main chain. All demonstrate good membrane-forming ability toughness elongation at break ranging 16.8 34.5%. The OH– conductivity them in range 88.4–117.1 mS cm–1 80 °C, attributed high water uptake favorable microphase separation structure. representative PPSP-35Pip membrane exhibits stability 89% retention ratio 2 M NaOH after 520 h °C. current density its electrolyzer cell reaches 0.619 A cm–2 electrolyte 2.0 V. After endurance testing, maintains voltage fluctuation only 1.07%.

Language: Английский

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The role of cross-linkers in the performance of anion exchange membrane for fuel cell applications

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2024, Volume and Issue: unknown, P. 135561 - 135561

Published: Oct. 1, 2024

Language: Английский

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Poly(isatin biphenylene) anion exchange membranes based on functionalization of long side chain N-spirocyclic

Materials Today Chemistry, Journal Year: 2024, Volume and Issue: 42, P. 102396 - 102396

Published: Nov. 9, 2024

Language: Английский

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Improved property of block copolymer-based anion exchange membranes by attaching multi-ion flexible strings

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 94, P. 331 - 340

Published: Nov. 12, 2024

Language: Английский

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