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All Journal Makara Journal of Technology
Aziz, Shujahadeen Bakar
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Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Engineering Materials Science & Nanotechnology Mechanical Engineering

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Influence of NH4F in Dextran Based Biopolymer Electrolytes: Conductivity and Electrical Analysis Hamsan, Muhamad Hafiz; Zamani Kadir, Mohd Fakhrul; Aziz, Shujahadeen Bakar; Azha, Muhammad Amirul Solihin; Muzakir, Saifful Kamaluddin
Makara Journal of Technology Vol. 23, No. 3
Publisher : UI Scholars Hub

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Abstract

Dextran polymer host was doped with different concentrations of ammonium fluoride (NH4F) via casting technique. In this present work, dextran-NH4F film has been employed to investigate the ionic conductivity using electrochemical impedance spectroscopy from 50 to 5 MHz. The highest room temperature conductivity is achieved at (2.33 ± 0.76) × 10-3 S cm-1 with 40 wt.% NH4F. The electrolyte is found to obey Arrhenius rule at high temperature with activation energy of 0.21 eV. Dielectric analysis has been performed to obtain better understanding on the conductivity pattern. The dielectric parameters e.g. ɛreal, ɛimag, Mreal, and Mimag have been tested as a function of frequency at various temperature. The potential stability obtained for the highest electrolyte in this study is 1.58 V.
Co-Authors Azha, Muhammad Amirul Solihin Hamsan, Muhamad Hafiz Muzakir, Saifful Kamaluddin Zamani Kadir, Mohd Fakhrul