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

Linus Hager; Maximilian Schrodt; Manuel Hegelheimer; Julian Stonawski; Pradipkumar Leuaa; Christodoulos Chatzichristodoulou; Andreas Hutzler; Thomas Böhm; Simon Thiele; Jochen Kerres

doi:10.1039/d4cc05067c

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

Linus Hager^*, Maximilian Schrodt, Manuel Hegelheimer, Julian Stonawski, Pradipkumar Leuaa, Christodoulos Chatzichristodoulou, Andreas Hutzler, Thomas Böhm, Simon Thiele, Jochen Kerres^*

^*Corresponding author for this work

Research output: Contribution to journal › Letter › peer-review

7 Downloads (Pure)

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^-1at 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.

Original language	English
Journal	Chemical Communications
Volume	61
Issue number	1
Pages (from-to)	149-152
Number of pages	4
ISSN	1359-7345
DOIs	https://doi.org/10.1039/d4cc05067c
Publication status	Published - 2025

Access to Document

10.1039/d4cc05067cLicence: CC BY

FulltextFinal published version, 1.05 MBLicence: CC BY

OpenUrl availability

Full text

Cite this

@article{32e44fd19e8c4745b01f2d9cde261227,

title = "Cationic groups in polystyrene/O-PBI blends influence performance and hydrogen crossover in AEMWE",

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.",

author = "Linus Hager and Maximilian Schrodt and Manuel Hegelheimer and Julian Stonawski and Pradipkumar Leuaa and Christodoulos Chatzichristodoulou and Andreas Hutzler and Thomas B{\"o}hm and Simon Thiele and Jochen Kerres",

year = "2025",

doi = "10.1039/d4cc05067c",

language = "English",

volume = "61",

pages = "149--152",

journal = "Chemical Communications",

issn = "1359-7345",

publisher = "Royal Society of Chemistry",

number = "1",

}

TY - JOUR

T1 - Cationic groups in polystyrene/O-PBI blends influence performance and hydrogen crossover in AEMWE

AU - Hager, Linus

AU - Schrodt, Maximilian

AU - Hegelheimer, Manuel

AU - Stonawski, Julian

AU - Leuaa, Pradipkumar

AU - Chatzichristodoulou, Christodoulos

AU - Hutzler, Andreas

AU - Böhm, Thomas

AU - Thiele, Simon

AU - Kerres, Jochen

PY - 2025

Y1 - 2025

N2 - 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.

AB - 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.

U2 - 10.1039/d4cc05067c

DO - 10.1039/d4cc05067c

M3 - Letter

C2 - 39624023

SN - 1359-7345

VL - 61

SP - 149

EP - 152

JO - Chemical Communications

JF - Chemical Communications

IS - 1

ER -

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

Abstract

Access to Document

OpenUrl availability

Fingerprint

Cite this