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Conductivity and morphological studies of poly(vinyl alcohol) magnesium triflate-ethylene carbonate gel polymer electrolyte
Nurul Izzati Ali1, Siti Norzahirah Zaharuddin2, Nur Aida Syarmeen Mohammad Azis3, Noraishah Syuhada Mohd Rafi4, Siti Zafirah Zainal Abidin5.
ABSTRACT
Gel polymer electrolyte based on poly (vinyl alcohol)(PVA)–magnesium
triflate (MgTf) incorporating with different weight percentage (wt.%) of
ethylene carbonate (EC) as plasticizer has been prepared by using solution
casting method. The ionic conductivity of PVA–MgTf–EC gel polymer
electrolyte has been determined by using Electrochemical Impedance
Spectroscopy (EIS) and has achieved an optimum value at 1.26 x 10-4
S.cm-1 when 50 wt.% of EC is added into the system. Fourier Transform
Infrared Spectroscopy (FTIR) has been performed to study the molecular
interaction between components in PVA-MgTf-EC gel polymer electrolyte.
The complexations between the materials used in the electrolyte system
are observed based on the shifting of bands and changes in the intensity
of peaks in FTIR spectra. The morphological behaviour of electrolytes
has been studied by using Field Emission Scanning Electron Spectroscopy
(FESEM) to observe the changes of PVA-based gel polymer electrolytes
when EC is added to the system. The amorphous peak of PVA-based
electrolyte is observed to become broaden with the addition of plasticizer, results in increment in the amorphousness nature of the electrolyte which is determined by X-ray Diffractometer (XRD).
Affiliation:
- Universiti Teknologi MARA,Shah Alam, Selangor,, Malaysia
- Universiti Teknologi MARA,Shah Alam, Selangor,, Malaysia
- Universiti Teknologi MARA,Shah Alam, Selangor,, Malaysia
- Universiti Teknologi MARA,Shah Alam, Selangor,, Malaysia
- Universiti Teknologi MARA,Shah Alam, Selangor,, Malaysia
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