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Ionic Hopping Transport in Chitosan-Based Polymer Electrolytes

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Abstract:

Measurement of the ionic conductivity for the CA-NH4CF3SO3-DMC system was carried out at frequencies of 50 Hz to1 MHz and also at temperatures of 298 K to 313 K. The plot of log σ versus 1000/T shows a linear behavior suggesting that the samples obey the Arrhenius relationship. The electrical relaxation of the system was analyzed using the complex electric modulus M* of the sample with the highest ionic conductivity at various temperatures. The analysis of electrical modulus and dissipation factor (tan δ) shows that charge transport occurs through a hopping mechanism.

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Periodical:

Materials Science Forum (Volume 517)

Pages:

237-241

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.517.237

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Online since:

June 2006

Authors:

A.S.A. Khiar, S.R. Majid, N.H. Idris, M.F. Hassan, R. Puteh, A.K. Arof

Keywords:

Chitosan (CS), Dielectric Relaxation, Electrical Modulus, Hopping Mechanism

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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