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

Abstract An attempt has been made to prepare a new proton conducting polymer electrolyte based on polyvinyl alcohol (PVA) doped with $ NH_{4} %$ NO_{3} $ by solution casting technique. The complex formation between polymer and dissociated salt has been confirmed by X-ray diffraction analysis. The io...
Ausführliche Beschreibung

Abstract An attempt has been made to prepare a new proton conducting polymer electrolyte based on polyvinyl alcohol (PVA) doped with $ NH_{4} %$ NO_{3} $ 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% $ NH_{4} %$ NO_{3} $-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. Ausführliche Beschreibung