Effect of Recombination Catalyst Loading in PEMWE Membranes on Anodic Hydrogen Content Reduction

Language
en
Document Type
Article
Issue Date
2023-01-16
First published
2022-12-23
Issue Year
2022
Authors
Abbas, Dunia
Martin, Agate
Trinke, Patrick
Bierling, Markus
Bensmann, Boris
Thiele, Simon
Hanke-Rauschenbach, Richard
Böhm, Thomas
Editor
Publisher
IOP Publishing
Abstract

Integrating platinum-based recombination catalysts into proton exchange membrane water electrolysis systems effectively reduces the anodic hydrogen content. We studied the effect of the platinum loading of an interlayer close to the anode within the membrane on the anodic hydrogen in oxygen content. For the investigated Pt-loadings between 1 μgPt cm−2 and 140 μgPt cm−2, the results revealed that for a 110 μm membrane, 7 μgPt cm−2 were sufficient to allow a safe operation at cathode pressures up to 10 bar. A further increase of the Pt-loading did not significantly improve the reduction of the anodic hydrogen in oxygen content.

Journal Title
Journal of The Electrochemical Society
Volume
169
Issue
12
Citation
Journal of The Electrochemical Society 169.12 (2022): 124514. <https://iopscience.iop.org/article/10.1149/1945-7111/aca6a0>