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Study on fiber-reinforced proton exchange membrane using high-surface-energy substrate.
- Source :
-
Journal of Membrane Science . Apr2022, Vol. 647, pN.PAG-N.PAG. 1p. - Publication Year :
- 2022
-
Abstract
- A fiber-reinforced composite membrane has been fabricated using a high-surface-energy substrate via a facile one-step doctor blading technique, which would be a perfect match for roll-to-roll process. The nanofiber mat based on sulfonated polyether-ether-ketone and polyvinylidene fluoride acting as reinforcement frame shows ultra-high surface energy, and enables efficient impregnation of perfluorosulfonated ionomer into porous substrate to form a uniform-layer structure with nanofibers interspersed throughout the composite membrane on the thickness direction. As a result, the fiber-reinforced composite membranes display enhanced mechanical stability and reduced swelling rate. With high packing density and continuous PFSI distribution, the as-prepared composite membranes perform better both on through-plane conductivity and cell performance under a low humidification than those of commercial membranes based on porous poly (tetra fluoroethylene). [Display omitted] • Membranes reinforced with a high-surface-energy substrate (sulfonated polyether-ether-ketone and polyvinylidene fluoride) were prepared as PRS by one-step doctor blading technique. • PRS demonstrates a uniform-layer structure unlike commercially used PTFE-reinforced membranes. • PRS performs better than commercially used PTFE-reinforced membranes in fuel cell under all humidity conditions and is significantly higher without humidification. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03767388
- Volume :
- 647
- Database :
- Academic Search Index
- Journal :
- Journal of Membrane Science
- Publication Type :
- Academic Journal
- Accession number :
- 155257922
- Full Text :
- https://doi.org/10.1016/j.memsci.2021.119940