alexa Structural and ionic conductivity studies on proton conducting polymer electrolyte based on polyvinyl alcohol


Journal of Membrane Science & Technology

Author(s): M Hema, S Selvasekarapandian, H Nithya, A Sakunthala, D Arunkumar

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An attempt has been made to prepare a new proton conducting polymer electrolyte based on polyvinyl alcohol (PVA) doped with NH4NO3 by solution casting technique. The complex formation between polymer and dissociated salt has been confirmed by X-ray diffraction analysis. The ionic conductivity of the prepared polymer electrolyte has been found by ac impedance spectroscopic analysis. The highest ionic conductivity has been found to be 7.5 × 10−3 Scm−1 at ambient temperature for 20 mol% NH4NO3-doped PVA with low activation energy (~0.19 eV). The temperature-dependent conductivity of the polymer electrolyte follows an Arrhenius relationship, which shows hopping of ions in the polymer matrix.

This article was published in Ionicsq and referenced in Journal of Membrane Science & Technology

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