Conduction Mechanism of Solid Biopolymer Electrolytes System Based on Carboxymethyl cellulose - Ammonium chloride

Abstract

Solid biopolymer electrolytes (SBEs) system based on carboxymethyl cellulose (CMC) doped with ammonium chloride (AC) has been prepared via solution casting technique. Impedance study shows the highest ionic conductivity, ?, was found to be (1.43 ± 0.02) x 10-3 S/cm at room temperature (303 K) for sample containing 16wt. % of ammonium chloride. The conductivity of the CMC-AC was found to increase relatively to the AC content and temperature. The temperature-dependent of solid biopolymer electrolyte obeys Arrhenius behaviour which R2?1. The activation energy was found to be capsized with the conductivity. The Quantum mechanical tunnelling (QMT) is the best possible mechanism to present the hopping method in the CMC-AC system studied.