Investigations on Al2O3 dispersed PEO/PVP based Na+ ion conducting blend polymer electrolytes

In this current study, Na + ion conducting solid blend polymer electrolytes (NCSBPEs) based on polyethylene oxide (PEO) / polyvinyl pyrrolidine (PVP) / sodium nitrate (NaNO 3 ) with the addition of different wt.% aluminum oxide (Al 2 O 3 ) as filler were prepared using solution casting technique. Th...

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Bibliographic Details
Published in:Journal of materials science. Materials in electronics 2021-04, Vol.32 (8), p.9998-10007
Main Authors: Shenbagavalli, S., Muthuvinayagam, M., Jayanthi, S., Revathy, M. S.
Format: Article
Language:English
Subjects:
Aluminum oxide
Ambient temperature
Characterization and Evaluation of Materials
Chemistry and Materials Science
Electrochemical analysis
Electrolytes
Fillers
Fourier transforms
Infrared analysis
Infrared spectroscopy
Ion currents
Materials Science
Molten salt electrolytes
Optical and Electronic Materials
Polyethylene oxide
Polymers
Sodium
Sodium nitrates
Solid electrolytes
Spectrum analysis
Stability analysis
Voltammetry
X-ray diffraction
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Summary:In this current study, Na + ion conducting solid blend polymer electrolytes (NCSBPEs) based on polyethylene oxide (PEO) / polyvinyl pyrrolidine (PVP) / sodium nitrate (NaNO 3 ) with the addition of different wt.% aluminum oxide (Al 2 O 3 ) as filler were prepared using solution casting technique. The prepared solid blend polymer electrolytes are subjected to X-ray diffraction (XRD), Fourier transforms infrared (FTIR), and AC-impedance techniques. The complexation has been studied using X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR) measurements. AC-impedance spectroscopy has been used to analyze the ionic conductivity of the solid blend polymer electrolytes. The higher ionic conductivity ( σ ) ~10 –7 S/cm −1 is obtained for PEO: PVP: NaNO 3 film and it was enhanced to ~ 10 –5 S/cm −1 with the addition of Al 2 O 3 filler at the ambient temperature. The dielectric and tan δ values were also calculated using the impedance analysis. In LSV (linear sweep voltammetry) studies, a broad electrochemical stability window was observed for polymer electrolytes besides CV (cyclic voltammetry) studies confirm the electrochemical behavior of the electrolytes.
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-021-05658-3