Structural, electrical conductivity, and transport analysis of PAN–NH4Cl polymer electrolyte system

S. Sikkanthar, S. Karthikeyan, S. Selvasekarapandian, Dorai Arunkumar, Hellar Nithya, Kawamura Junichi

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

Poly (acrylonitrile) (PAN) and ammonium chloride (NH4Cl)-based proton conducting polymer electrolytes with different compositions have been prepared by solution casting technique. The amorphous nature of the polymer electrolytes has been confirmed by XRD analysis. The FTIR analysis confirms the complex formation of the host polymer (PAN) with the salt (NH4Cl). DSC measurements show a decrease in Tg with the increase in salt concentration. The conductivity analysis shows that the 25 mol% ammonium chloride doped polymer electrolyte has a maximum ionic conductivity, and it has been found to be 6.4 × 10−3 Scm−1, at room temperature. The temperature dependence of conductivity of the polymer electrolyte complexes appears to obey the Arrhenius nature. The activation energy (Ea = 0.23 eV) has been found to be low for 25 mol% salt doped polymer electrolyte. The dielectric behavior has been analyzed using dielectric permittivity (ε*), and the relaxation frequency (τ) has been calculated from the loss tangent spectra (tan δ). Using this maximum ionic conducting polymer electrolyte, the primary proton conducting battery with configuration Zn + ZnSO4·7H2O/75 PAN:25 NH4Cl/PbO2 + V2O5 has been fabricated and their discharge characteristics have been studied.

Original languageEnglish
Pages (from-to)1085-1094
Number of pages10
JournalIonics
Volume22
Issue number7
DOIs
Publication statusPublished - 2016 Jul 1

Keywords

  • DSC
  • NHCl
  • PAN
  • Polymer electrolyte
  • Proton conducting battery
  • Transport analysis
  • XRD

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

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