Cationic groups in polystyrene/O-PBI blends influence performance and hydrogen crossover in AEMWE

Hager L, Schrodt M, Hegelheimer M, Stonawski J, Leuaa P, Chatzichristodoulou C, Hutzler A, Böhm T, Thiele S, Kerres J (2024)

Publication Type: Journal article

Publication year: 2024

Journal

Chemical Communications Royal Society of Chemistry

Book Volume: 61

Pages Range: 149-152

Journal Issue: 1

DOI: 10.1039/d4cc05067c

Abstract

This study examines the effect of various quaternary ammonium groups on AEMWE performance and hydrogen crossover in blends of quaternized polystyrenes with O-PBI. Due to their higher hydroxide conductivity (69 mS cm−1 at 80 °C, 90% RH), trimethylammonium groups enable AEMWE to reach 1.0 A cm−2 at 2.0 V. The trimethylammonium groups exhibit low hydrogen crossover, ranging from 1.5% to 0.3%, across current densities of 50 to 1000 mA cm−2. Low hydrogen crossover is essential for AEMWE in terms of safety and efficiency.

Involved external institutions

Technical University of Denmark / Danmarks Tekniske Universitet (DTU) DK Denmark (DK) Forschungszentrum Jülich / Research Centre Jülich (FZJ) DE Germany (DE)

How to cite

APA:

Hager, L., Schrodt, M., Hegelheimer, M., Stonawski, J., Leuaa, P., Chatzichristodoulou, C.,... Kerres, J. (2024). Cationic groups in polystyrene/O-PBI blends influence performance and hydrogen crossover in AEMWE. Chemical Communications, 61(1), 149-152. https://doi.org/10.1039/d4cc05067c

MLA:

Hager, Linus, et al. "Cationic groups in polystyrene/O-PBI blends influence performance and hydrogen crossover in AEMWE." Chemical Communications 61.1 (2024): 149-152.

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