Transport Properties of Chitosan/Peo Blend Based Proton Conducting Polymer Electrolyte

Abstract:

The polymer electrolytes were prepared using the solution cast technique. The polymer host consisted of chitosan and poly(ethylene oxide) (PEO). Ammonium nitrate (NH₄NO₃) was added to the blend solution to provide the charge carriers for ionic conduction. The sample containing 40 wt.% NH4NO₃ exhibited a conductivity value of 5.83 × 10-4 S cm-1 at 373 K. Conductivity-temperature relationship for all samples obeyed Arrhenius rule and the activation energy of each samples were obtained. The sample containing 40 wt.% NH₄NO₃ showed the lowest activation energy at 0.29 eV. The conductivity variation for the prepared electrolyte system was explained using the Rice and Roth model. Sample with 40 wt. % NH₄NO₃ exhibited the highest number density and mobility of charge carriers with values of 1.39 × 1020 cm^-3 and 4.60 × 10^-6 cm² V^-1 s^-1 respectively. The increase in conductivity was attributed to the increase in the number density and mobility of charge carriers.

• Periodical: Advanced Materials Research (Volumes 488-489)
• Pages: 114-117
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.488-489.114
• Online since: March 2012
• Authors: M.F. Shukur, M.F.Z. Kadir, Z. Ahmad, R. Ithnin
• Keywords: Chitosan/PEO Blend, Proton Conductor, Rice Model, Roth Model

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