The Ion Transport study in Corn starch-NaHSO3 based polymer electrolytes

Fatin Farhana Awang; Mohd Faiz Hassan; Kok Sheng Chan; Khadijah Hilmun Kamarudin

doi:10.24191/srj.v18i2.11985

Fatin Farhana Awang University Malaysia Terengganu
Mohd Faiz Hassan Advanced Nano materials (ANoMa) Research Group, Ionic State Analysis (ISA) Laboratory, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
Kok Sheng Chan Advanced Nano materials (ANoMa) Research Group, Ionic State Analysis (ISA) Laboratory, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia.
Khadijah Hilmun Kamarudin Advanced Nano materials (ANoMa) Research Group, Ionic State Analysis (ISA) Laboratory, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia

DOI: https://doi.org/10.24191/srj.v18i2.11985

Abstract

In this work, different ratios of sodium bisulfite, NaHSO₃ (5wt.% to 40wt.%) was dissolved in corn starch polymer host to synthesis solid polymer electrolyte (SPE) by using a solution casting technique. Then, the films prepared were characterized using non-destructive electrical impedance spectroscopy to determine the conductivity and electrical transport properties of SPE films. The highest conductivity of sample at ambient temperature was recorded at 15wt.% of NaHSO₃ with a value of 2.22 × 10^-4 Scm^-1. Moreover, the ion transport parameters at room temperature are found to be 2.41 × 10^-7 cm²s^-1, 9.39 × 10^-6 cm²V^-1s^-1, 1.70 × 10¹⁹ cm^-3 for D, µ and n, respectively. The conductivity of the samples was found dependent on diffusion coefficient, D and mobility, µ of ions.