Dielectric properties and electrical conductivity of Ternary Zinc Magnesium Phosphate Glass-derived hydrogel
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 applicabl...
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my-unimap-770842022-11-17T07:33:22Z Dielectric properties and electrical conductivity of Ternary Zinc Magnesium Phosphate Glass-derived hydrogel Khor, Shing Fhan 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. Universiti Malaysia Perlis (UniMAP) Thesis en http://dspace.unimap.edu.my:80/xmlui/handle/123456789/77084 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77084/3/license.txt 8a4605be74aa9ea9d79846c1fba20a33 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77084/1/Page%201-24.pdf 1130a190a5a893c3cf5ea8d3243f0b30 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77084/2/Full%20text.pdf 093089fc0186a4f99ce28813d0e098fc http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77084/4/Nor%20Asfazila.pdf ba68da57750006ab4d5eb709ab1c158f Universiti Malaysia Perlis (UniMAP) Electrolytes Magnesium phosphate Dielectrics Liquid dielectrics Optical glass Hydrogel School of Electrical Systems Engineering |
| institution |
Universiti Malaysia Perlis |
| collection |
UniMAP Institutional Repository |
| language |
English |
| advisor |
Khor, Shing Fhan |
| topic |
Electrolytes Magnesium phosphate Dielectrics Liquid dielectrics Optical glass Hydrogel |
| spellingShingle |
Electrolytes Magnesium phosphate Dielectrics Liquid dielectrics Optical glass Hydrogel Dielectric properties and electrical conductivity of Ternary Zinc Magnesium Phosphate Glass-derived hydrogel |
| description |
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. |
| format |
Thesis |
| 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 |
| granting_institution |
Universiti Malaysia Perlis (UniMAP) |
| granting_department |
School of Electrical Systems Engineering |
| url |
http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77084/1/Page%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77084/2/Full%20text.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77084/4/Nor%20Asfazila.pdf |
| _version_ |
1776104232758280192 |