Nanostructure analysis and dielectric properties of PVA/sPTA proton exchange membrane for fuel cell applications: Positron lifetime study
Proton exchange membranes made of cross-linked polyvinyl alcohol and sulfophthalic acid
(PVA-sPTA) were successfully fabricated by casting method and crosslinked at 100° C with
sPTA concentrations ranging from 10 to 30 wt%. TGA studies proved that the thermal
stability of the crosslinked membranes was enhanced with increasing sPTA content. A
Conventional fast–fast coincidence spectrometer was used to measure the RT positron
annihilation lifetime parameters as a function of temperature. Proton conductivity was …
(PVA-sPTA) were successfully fabricated by casting method and crosslinked at 100° C with
sPTA concentrations ranging from 10 to 30 wt%. TGA studies proved that the thermal
stability of the crosslinked membranes was enhanced with increasing sPTA content. A
Conventional fast–fast coincidence spectrometer was used to measure the RT positron
annihilation lifetime parameters as a function of temperature. Proton conductivity was …
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