The Effect of Plasticization on Conductivity and Other Properties of Starch/Chitosan Blend Biopolymer Electrolyte Incorporated with Ammonium Iodide |
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| Authors: | Y. M. Yusof N. A. Majid R. M. Kasmani H. A. Illias |
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| Affiliation: | 1. Institute of Graduate Studies, University of Malaya, Kuala Lumpur 50603, Malaysia;2. Institute of Biological Sciences, Faculty of Science, University of Malaya, Kuala Lumpur 50603, Malaysia;3. Centre for Foundation Studies in Science, University of Malaya, 50603, Kuala Lumpur, Malaysia;4. Department of Electrical Engineering, Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia |
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| Abstract: | ![]()
This work focuses on polymer electrolytes composed of a starch-chitosan blend host, ammonium iodide (NH4I) and glycerol. Fourier transform infrared (FTIR) analysis confirms the interaction of starch-chitosan-NH4I-glycerol. The highest room temperature conductivity is (1.28 ± 0.07) × 10?3 S cm?1, obtained by a sample containing 30 wt% glycerol. Dielectric studies showed that the electrolytes obeyed non-Debye behavior. The total ionic transference number for the 30 wt% glycerol sample was 0.991, and the conduction mechanism for this sample followed the quantum mechanical tunneling (QMT) model. Linear sweep voltammetry (LSV) showed that this sample was electrochemically stable up to 1.90 V. The highest conducting sample was used in the fabrication of an electrical double layer capacitor (EDLC) cell. |
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| Keywords: | Polymer electrolyte conductivity starch-chitosan blend ammonium iodide EDLC |
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