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Dielectric properties and electrical conductivity of Ternary Zinc Magnesium Phosphate Glass-derived hydrogel

Master of Science in Electrical Systems Engineering

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Bibliographic Details
Main Author: Nor Asfaliza, Abdullah
Other Authors: Khor, Shing Fhan
Format: Thesis
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2015
Subjects:
Electrolytes
Magnesium phosphate
Dielectrics
Liquid dielectrics
Optical glass
Hydrogel
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/77084
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spelling my.unimap-770842022-11-17T07:33:22Z Dielectric properties and electrical conductivity of Ternary Zinc Magnesium Phosphate Glass-derived hydrogel Nor Asfaliza, Abdullah Khor, Shing Fhan Electrolytes Magnesium phosphate Dielectrics Liquid dielectrics Optical glass Hydrogel Master of Science in Electrical Systems Engineering Leakage problem and contact resistance are the major problems for liquid electrolyte and solid-state electrolyte, respectively. In this research, a highly viscous ternary phosphate glass-derived hydrogel was proposed as high proton-conducting electrolyte that may overcome the problems and applicable to power storage devices. Before hydration, a series of ternary zinc magnesium phosphate glasses having the composition (ZnO)30.(MgO)x.(P2O5)70-x with x = 5, 8, 10, 13, 15, 18, and 20 mole % were prepared by melt quenching technique. All the samples were confirmed in amorphous phase by X-ray diffraction (XRD) analysis. Glass powder from each glass samples were successfully transformed into hydrogel product via hydration after reaction with distilled water (DW) with ratio mixture 1:0.5 and 1:1. Density, molar volume and Fourier Transform Infrared (FTIR) spectroscopic measurement have been used to characterize the physical properties of solid glass and glass-derived hydrogel. Result of both density and molar volume was correlated with network polymerization. IR spectra of solid glass and hydrogel were measured in the wavenumber range of 650 cm-1 to 4000 cm-1 at ambient temperature. It was found that the absorption band of phosphorusoxygen- metal (P-O-M) bonding which present in glass powder structure disappeared in the hydrogel structure due to hydration process. However, the divalent cations may attach to phosphate chain by chelation. The dielectric properties of the hydrogel samples were characterized by impedance analyzer in frequency range of 4 Hz to 1 MHz. It was revealed that CZ05 (1:1) hydrogel sample has highest dielectric constant, dielectric loss and electrical conductivity values among studied samples. 2015 2022-11-17T07:25:23Z 2022-11-17T07:25:23Z Thesis http://dspace.unimap.edu.my:80/xmlui/handle/123456789/77084 en Universiti Malaysia Perlis (UniMAP) Universiti Malaysia Perlis (UniMAP) School of Electrical Systems Engineering
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Electrolytes
Magnesium phosphate
Dielectrics
Liquid dielectrics
Optical glass
Hydrogel
spellingShingle Electrolytes
Magnesium phosphate
Dielectrics
Liquid dielectrics
Optical glass
Hydrogel
Nor Asfaliza, Abdullah
Dielectric properties and electrical conductivity of Ternary Zinc Magnesium Phosphate Glass-derived hydrogel
description Master of Science in Electrical Systems Engineering
author2 Khor, Shing Fhan
author_facet Khor, Shing Fhan
Nor Asfaliza, Abdullah
format Thesis
author Nor Asfaliza, Abdullah
author_sort Nor Asfaliza, Abdullah
title Dielectric properties and electrical conductivity of Ternary Zinc Magnesium Phosphate Glass-derived hydrogel
title_short Dielectric properties and electrical conductivity of Ternary Zinc Magnesium Phosphate Glass-derived hydrogel
title_full Dielectric properties and electrical conductivity of Ternary Zinc Magnesium Phosphate Glass-derived hydrogel
title_fullStr Dielectric properties and electrical conductivity of Ternary Zinc Magnesium Phosphate Glass-derived hydrogel
title_full_unstemmed Dielectric properties and electrical conductivity of Ternary Zinc Magnesium Phosphate Glass-derived hydrogel
title_sort dielectric properties and electrical conductivity of ternary zinc magnesium phosphate glass-derived hydrogel
publisher Universiti Malaysia Perlis (UniMAP)
publishDate 2015
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/77084
_version_ 1751537839896526848
score 13.222552

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