Composite Proton Exchange Membranes with Interlayer Structure Containing Functional Catalyst Particles for Water Electrolysis.

ABSTRACT: The development of more cost-effective and efficient proton exchange membrane (PEM) water electrolysis cells requires the use of thinner membranes with extended lifetimes and reduced gas crossover. One approach to address these challenges involves the incorporation of radical scavengers to mitigate radical-induced ionomer degradation and gas recombination catalysts to promote the conversion of crossover hydrogen and oxygen to water. The positioning effects of these two catalyst interlayers in composite membranes were investigated. Results reveal that placing a Ce_0.5Zr_0.5O₂ radical scavenger interlayer near the cathode notably reduces the ionomer degradation rate, compared to its placement near the anode. The Ce content in cerium-zirconium oxide was optimize

SUBMITTER: Zhang Z 

PROVIDER: S-EPMC12492325 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature