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AC Conduction in Polyaniline Emeraldine Salt-Graphite Pellets

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Abstract:

The conduction characteristics of Polyaniline emeraldine salt-Graphite (PAni-ES/Gr) pellets were characterized using an impedance analyzer. The pellets were prepared with varying mass fractions of PAni-ES and Gr. FTIR spectra have the stretching vibrations for PAni-ES and absence of peaks for Gr. PAni-ES showed aggregated particles while Gr appeared as sheets and flaky structures. The composition of the pellets was differentiated in the AC conductivity values. The critical frequency representing the transition from frequency-independent to frequency-dependent conductivity decreases with increasing Gr content. Lastly, the frequency-dependent conductivity behavior follows power-law behavior reflecting possible hopping mechanisms and random resistor-capacitor network.

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Periodical:

Materials Science Forum (Volume 923)

Pages:

66-71

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.923.66

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Online since:

May 2018

Authors:

Kenny Vienne S. Manding, Jay Edson S. Lopez, Alvin Karlo Garcia Tapia*

Keywords:

Conduction Mechanisms, Disordered Solids, Graphite, Polyaniline

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© 2018 Trans Tech Publications Ltd. All Rights Reserved

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