Cationic groups in polystyrene/O-PBI blends influence performance and hydrogen crossover in AEMWE
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<sup>-1</sup> at 80 °C, 90% RH), trimethylammonium groups enable AEMWE to reach 1.0 A cm<sup>-2</sup> 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<sup>-2</sup>. Low hydrogen crossover is essential for AEMWE in terms of safety and efficiency.
Authors
- Christodoulos Chatzichristodoulou (ORCID: https://orcid.org/0000-0001-6499-5914)
- Pradipkumar Manubhai Leuaa (ORCID: https://orcid.org/0000-0002-3475-9184)
- Thomas Böhm (ORCID: https://orcid.org/0000-0003-2036-2159)
- Andreas Hutzler (ORCID: https://orcid.org/0000-0001-5484-707X)
- Simon Thiele (ORCID: https://orcid.org/0000-0002-4248-2752)
- Julian Stonawski (ORCID: https://orcid.org/0009-0003-0062-9925)
- Linus Hager (ORCID: https://orcid.org/0000-0001-5849-1373)
- Jochen Kerres (ORCID: https://orcid.org/0000-0003-4972-6307)
- Manuel Hegelheimer (ORCID: https://orcid.org/0000-0002-7885-5776)
- Maximilian Schrodt
Institutions
- Forschungszentrum Jülich (DE)
- Friedrich-Alexander-Universität Erlangen-Nürnberg (DE)
- North-West University (ZA)
- Helmholtz Institute Erlangen-Nürnberg (DE)
- Technical University of Denmark (DK)
Publication Details
- Journal
- Chemical Communications
- Published
- 2024-12-03
- DOI
- https://doi.org/10.1039/d4cc05067c
- Citations
- 1
- Primary Topic
- Fuel Cells and Related Materials
- Type
- article
- Field-Weighted Citation Impact
- 0.21
Funders
- European Commission