Nanofiber membranes for enhanced performance and optimization of proton exchange membrane fuel cells.

ABSTRACT: Proton exchange membranes (PEMs) are critical to fuel cell performance, where ion transport, catalyst activity, and mass transfer determine efficiency and durability. However, conventional membranes in PEM fuel cells often suffer from hydrogen crossover, limited conductivity, and poor interfacial stability. To address these challenges, this study develops a nanofiber membrane system with synergistic structural and interfacial enhancement. Through nanofiber architecture and surface engineering, the membrane balances proton conductivity, mechanical strength and electrochemical performance. The sandwich-structure nanofiber membrane (SSNFM) achieves a peak power density of 942 mW cm^-2 after 100-hour accelerated stress testing, substantially outperforming conventional commercial memb

SUBMITTER: Zhai H 

PROVIDER: S-EPMC12448063 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature