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

authored by
Dunia Abbas, Agate Martin, Patrick Trinke, Markus Bierling, Boris Bensmann, Simon Thiele, Richard Hanke-Rauschenbach, Thomas Böhm
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.

Organisation(s)
Section Electrical Energy Storage Systems
External Organisation(s)
Forschungszentrum Jülich
Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU Erlangen-Nürnberg)
Type
Article
Journal
Journal of the Electrochemical Society
Volume
169
ISSN
0013-4651
Publication date
12.2022
Publication status
Published
Peer reviewed
Yes
ASJC Scopus subject areas
Electronic, Optical and Magnetic Materials, Renewable Energy, Sustainability and the Environment, Surfaces, Coatings and Films, Electrochemistry, Materials Chemistry
Sustainable Development Goals
SDG 7 - Affordable and Clean Energy
Electronic version(s)
https://doi.org/10.1149/1945-7111/aca6a0 (Access: Open)