Dielectric Studies of Proton Conducting Polymer Electrolyte Based on Chitosan/PEO Blend Doped with NH4NO3

M.F. Shukur; M.F.Z. Kadir; Z. Ahmad; R. Ithnin

doi:10.4028/www.scientific.net/AMR.488-489.583

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 488-489Dielectric Studies of Proton Conducting Polymer...

Dielectric Studies of Proton Conducting Polymer Electrolyte Based on Chitosan/PEO Blend Doped with NH₄NO₃

Abstract:

Polymer blend of chitosan and poly(ethylene oxide) (PEO) electrolytes were prepared by employing solution cast method. Ammonium nitrate (NH₄NO₃) was added to the blend to supply the charge carriers for ionic conduction. The impedance of the electrolytes was measured by electrical impedance spectroscopy (EIS) over the frequency range of 50 Hz to 1 MHz. The permittivity ɛr and electric modulus Mr of the complex were analyzed. Dispersion at low frequencies caused by space charge effect from the electrodes was observed. The modulus plots indicated that the dispersion deviated from the Debye behaviour. The relaxation time, τ decreased to 1.64 × 10^-7 s as the NH₄NO₃ content was increased up to 40 wt.%.

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Periodical:

Advanced Materials Research (Volumes 488-489)

Pages:

583-587

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.488-489.583

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Online since:

March 2012

Authors:

M.F. Shukur, M.F.Z. Kadir, Z. Ahmad, R. Ithnin

Keywords:

Chitosan/PEO Blend, Dielectric Constant, Polymer Electrolyte

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