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Confocal Raman spectroscopy of sulfonated styrene grafted PVDF membranes

Book ID
104433530
Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
139 KB
Volume
2002
Category
Article
ISSN
1464-2859

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✦ Synopsis

The performance of solid-polymer-electrolyte DMFCs is substantially influenced by the morphology of the gas diffusion layer (GDL) in the catalytic electrodes. Cells utilizing GDLs made with high-surface-area Ketjen Black carbon, with optimized thickness, show better performance compared with cells utilizing Vulcan XC-72 carbon or 'acetylene black' carbon in the GDL. Cells with a hydrophilic diffusion layer on the anodes and a hydrophobic diffusion layer on the cathodes yield better performance.

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Phase separation and crystallinity in pr
Phase separation and crystallinity in proton conducting membranes of styrene grafted and sulfonated poly(vinylidene fluoride)
✍ Sami Hietala; Mikael Paronen; Svante Holmberg; Jan NΓ€sman; Jyrki Juhanoja; Milja πŸ“‚ Article πŸ“… 1999 πŸ› John Wiley and Sons 🌐 English βš– 525 KB

A series of proton exchange membranes have been prepared by the preirradiation grafting method. Styrene was grafted onto a matrix of poly(vinylidene fluoride) (PVDF) after electron beam irradiation. Part of the samples was crosslinked with divinylbenzene (DVB) or bis(vinylphenyl)ethane (BVPE). Subse