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Hot-press synthesized polyethylene oxide based proton conducting nanocomposite polymer electrolyte dispersed with SiO2 nanoparticles by G.P. Pandey; S.A. Hashmi; R.C. Agrawal is a Materials Science article available to read on EtoBox.

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Ion transport studies on polyethylene oxide (PEO) based nanocomposite polymer electrolyte (NCPE) membranes (PEO: NH 4 HSO 4 ) dispersed with nanosized SiO 2 particle in varying wt.(%) have been reported. NCPE films have been cast by a novel hot-press (extrusion) technique. Scanning electron microscopy (SEM), X-ray diffraction (XRD), differential scanning calorimetry (DSC), Fourier transform infra-red (FTIR) spectroscopy, ionic transport number (t ion ) and electrical conductivity (σ) studies have been carried out on hot-press films and the results have been compared with NCPE films prepared by the standard solution cast technique. As a consequence of dispersion of a fractional amount of nanosized SiO 2 filler particles into the polymer-salt complex (PEO: NH 4 HSO 4 ) host matrix, an enhancement of approximately an order of magnitude in the room temperature conductivity resulted. NCPE membranes with SiO 2 content: 5 wt.% (Solution cast) and 15 wt.% (hot-press) exhibited optimum room temperature conductivity (σ) values ~2.5 × 10 -4 S cm -1 and ~1.4 × 10 -4 S cm -1 , respectively. Two maxima appeared in the SiO 2 concentration dependent conductivity plot for hot-pressed NCPE films whi

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Author

G.P. Pandey; S.A. Hashmi; R.C. Agrawal

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0167-2738)

Published

2008

Language

EN

Field

Materials Science (Physical Sciences)