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Electrical properties of proton conducting solid biopolymer electrolytes based on starch–chitosan blend

Electrical properties of proton conducting solid biopolymer electrolytes based on starch–chitosan... Two systems (salted and plasticized) of starch–chitosan blend-based electrolytes incorporated with ammonium chloride (NH4Cl) are prepared via solution cast technique. The incorporation of 25 wt% NH4Cl has maximized the room temperature conductivity of the electrolyte to (6.47 ± 1.30) × 10−7 S cm−1. Conductivity is enhanced to (5.11 ± 1.60) × 10−4 S cm−1 on addition of 35 wt% glycerol. The temperature dependence of conductivity for all electrolytes is Arrhenian, and the value of activation energy (E a ) decreases with increasing conductivity. Conductivity is found to be influenced by the number density (n) and mobility (μ) of ions. The complexation between the electrolytes components is proven by Fourier transform infrared analysis. The relaxation time (t r ) for selected electrolytes is found to decrease with increasing conductivity and temperature. Conduction mechanism for the highest conducting electrolyte in salted and plasticized systems is determined by employing Jonscher’s universal power law. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Ionics Springer Journals

Electrical properties of proton conducting solid biopolymer electrolytes based on starch–chitosan blend

Shukur, M.; Ithnin, R.; Kadir, M.
Ionics , Volume 20 (7) – Dec 13, 2013
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References (100)

Publisher
Springer Journals
Copyright
Copyright © 2013 by Springer-Verlag Berlin Heidelberg
Subject
Chemistry; Electrochemistry; Renewable and Green Energy; Optical and Electronic Materials; Condensed Matter Physics; Energy Storage
ISSN
0947-7047
eISSN
1862-0760
DOI
10.1007/s11581-013-1033-8
Publisher site
See Article on Publisher Site

Abstract

Two systems (salted and plasticized) of starch–chitosan blend-based electrolytes incorporated with ammonium chloride (NH4Cl) are prepared via solution cast technique. The incorporation of 25 wt% NH4Cl has maximized the room temperature conductivity of the electrolyte to (6.47 ± 1.30) × 10−7 S cm−1. Conductivity is enhanced to (5.11 ± 1.60) × 10−4 S cm−1 on addition of 35 wt% glycerol. The temperature dependence of conductivity for all electrolytes is Arrhenian, and the value of activation energy (E a ) decreases with increasing conductivity. Conductivity is found to be influenced by the number density (n) and mobility (μ) of ions. The complexation between the electrolytes components is proven by Fourier transform infrared analysis. The relaxation time (t r ) for selected electrolytes is found to decrease with increasing conductivity and temperature. Conduction mechanism for the highest conducting electrolyte in salted and plasticized systems is determined by employing Jonscher’s universal power law.

Journal

Ionics – Springer Journals

Published: Dec 13, 2013

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