Impedance Spectroscopy and FTIR Studies of PEG - Based Polymer Electrolytes

Ionic conductivity of poly(ethylene glycol) (PEG) - ammonium chloride (NH4Cl) based polymer electrolytes can be enhanced by incorporating ceramic filler TiO2 into PEG-NH4Cl matrix. The electrolyte samples were prepared by solution casting technique. FTIR studies indicates that the complex formation...

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Main Authors: Anji Reddy Polu, Ranveer Kumar
Format: Article
Language:English
Published: Wiley 2011-01-01
Series:E-Journal of Chemistry
Online Access:http://dx.doi.org/10.1155/2011/628790
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author Anji Reddy Polu
Ranveer Kumar
author_facet Anji Reddy Polu
Ranveer Kumar
author_sort Anji Reddy Polu
collection DOAJ
description Ionic conductivity of poly(ethylene glycol) (PEG) - ammonium chloride (NH4Cl) based polymer electrolytes can be enhanced by incorporating ceramic filler TiO2 into PEG-NH4Cl matrix. The electrolyte samples were prepared by solution casting technique. FTIR studies indicates that the complex formation between the polymer, salt and ceramic filler. The ionic conductivity was measured using impedance spectroscopy technique. It was observed that the conductivity of the electrolyte varies with TiO2 concentration and temperature. The highest room temperature conductivity of the electrolyte of 7.72×10−6 S cm-1 was obtained at 15% by weight of TiO2 and that without TiO2 filler was found to be 9.58×10−7 S cm−1. The conductivity has been improved by 8 times when the TiO2 filler was introduced into the PEG–NH4Cl electrolyte system. The conductance spectra shows two distinct regions: a dc plateau and a dispersive region. The temperature dependence of the conductivity of the polymer electrolytes seems to obey the VTF relation. The conductivity values of the polymer electrolytes were reported and the results were discussed. The imaginary part of dielectric constant (εi) decreases with increase in frequency in the low frequency region whereas frequency independent behavior is observed in the high frequency region.
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spelling doaj-art-621f0e9114f745e29263164c0b40c28d2025-02-03T05:50:26ZengWileyE-Journal of Chemistry0973-49452090-98102011-01-018134735310.1155/2011/628790Impedance Spectroscopy and FTIR Studies of PEG - Based Polymer ElectrolytesAnji Reddy Polu0Ranveer Kumar1Solid State Ionics Research Laboratory, Department of PhysicsDr. Hari Singh Gour University, Sagar, Madya Pradesh 470003, IndiaSolid State Ionics Research Laboratory, Department of PhysicsDr. Hari Singh Gour University, Sagar, Madya Pradesh 470003, IndiaIonic conductivity of poly(ethylene glycol) (PEG) - ammonium chloride (NH4Cl) based polymer electrolytes can be enhanced by incorporating ceramic filler TiO2 into PEG-NH4Cl matrix. The electrolyte samples were prepared by solution casting technique. FTIR studies indicates that the complex formation between the polymer, salt and ceramic filler. The ionic conductivity was measured using impedance spectroscopy technique. It was observed that the conductivity of the electrolyte varies with TiO2 concentration and temperature. The highest room temperature conductivity of the electrolyte of 7.72×10−6 S cm-1 was obtained at 15% by weight of TiO2 and that without TiO2 filler was found to be 9.58×10−7 S cm−1. The conductivity has been improved by 8 times when the TiO2 filler was introduced into the PEG–NH4Cl electrolyte system. The conductance spectra shows two distinct regions: a dc plateau and a dispersive region. The temperature dependence of the conductivity of the polymer electrolytes seems to obey the VTF relation. The conductivity values of the polymer electrolytes were reported and the results were discussed. The imaginary part of dielectric constant (εi) decreases with increase in frequency in the low frequency region whereas frequency independent behavior is observed in the high frequency region.http://dx.doi.org/10.1155/2011/628790
spellingShingle Anji Reddy Polu
Ranveer Kumar
Impedance Spectroscopy and FTIR Studies of PEG - Based Polymer Electrolytes
E-Journal of Chemistry
title Impedance Spectroscopy and FTIR Studies of PEG - Based Polymer Electrolytes
title_full Impedance Spectroscopy and FTIR Studies of PEG - Based Polymer Electrolytes
title_fullStr Impedance Spectroscopy and FTIR Studies of PEG - Based Polymer Electrolytes
title_full_unstemmed Impedance Spectroscopy and FTIR Studies of PEG - Based Polymer Electrolytes
title_short Impedance Spectroscopy and FTIR Studies of PEG - Based Polymer Electrolytes
title_sort impedance spectroscopy and ftir studies of peg based polymer electrolytes
url http://dx.doi.org/10.1155/2011/628790
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