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

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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)

Edited by:

Wu Fan

Pages:

583-587

Citation:

M.F. Shukur et al., "Dielectric Studies of Proton Conducting Polymer Electrolyte Based on Chitosan/PEO Blend Doped with NH4NO3", Advanced Materials Research, Vols. 488-489, pp. 583-587, 2012

Online since:

March 2012

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$41.00

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