ECS Webinar: “Cobalt Dissolution from PtxCo/C Cathode Catalysts in PEM fuel cells: In Situ Quantification and Removal Methods”
Maggie Hohenadel
Markus Schilling
Technische Universität München
Date: April 15, 2026
Time: 1000–1100h ET
Pt-alloy/C catalysts, such as PtxCo/C, are used as cathode catalysts in proton-exchange membrane (PEM) fuel cells due to their exceptionally high kinetic activity for the oxygen reduction reaction (ORR). However, the performance and durability of membrane electrode assemblies (MEAs) with a PtxCo/C cathode catalyst are impaired by the dissolution of Co2+ cations in the ionomer phase of the MEA.
In the first..