Prado L, Virtanen S, Weineck N, Ghicov A, Kessler F (2024)
Publication Type: Journal article
Publication year: 2024
Book Volume: 613
Article Number: 234815
DOI: 10.1016/j.jpowsour.2024.234815
Ex-situ corrosion experiments are very common to identify the suitability of metallic materials for various applications. While for proton exchange membrane (PEM) fuel cells the US Department of Energy (DoE) gives a clear guidance on how to perform corrosion experiments, no such guidance exists for PEM water electrolyzer (PEMWE) applications. For the latter, much higher anodic potentials (when compared to fuel cells) of up to +2 V vs. RHE must be considered for bipolar plates. Consequently, in aqueous electrolytes oxygen evolution via water splitting takes place in parallel and the two processes corrosion vs. oxygen evolution cannot easily be separated. We herein demonstrate how corrosion experiments for PEMWE applications can be performed and ascribe the contribution of oxygen evolution during such experiments. Together with the shown comprehensive surface analysis of the metallic sample and analysis of the electrolyte via ICP-MS a clear picture of the stability of 316L stainless steel under electrolysis conditions is given. The described method allows both, the evaluation of metals and alloys as well as coatings on different metals for electrolyzer applications.
APA:
Prado, L., Virtanen, S., Weineck, N., Ghicov, A., & Kessler, F. (2024). How to perform corrosion experiments for proton exchange membrane water electrolysis bipolar plates. Journal of Power Sources, 613. https://doi.org/10.1016/j.jpowsour.2024.234815
MLA:
Prado, Lucia, et al. "How to perform corrosion experiments for proton exchange membrane water electrolysis bipolar plates." Journal of Power Sources 613 (2024).
BibTeX: Download