Na2S-P2S5 Based Super-Ionic Glasses for
Solid Electrolytes |
Paramjyot Kumar Jha, O. P. Pandey and K. Singh*
pages 5-9
DOI:10.1080/0371750X.2013.793999 |
Abstract |
Melt quenched sulphide glass of system Na2S-P2S5 has been synthesized by taking equimolar quantities of Na2S
and P2S5. The glass sample was characterized by XRD, DTA/TG, dilatometery and impedance spectroscopy. The
XRD pattern of the sample showed a broad halo indicating its amorphous nature. The DTA curve showed different
crystallization temperatures (Tc) at different heating rates. Crystallization kinetics of the synthesized sample was
studied using Kissinger’s model. The glass transition temperature of the present glass was lower than the silicate
glasses. Based on DTA/TG results, the glass sample was heated at 400oC for 4 h to get the glass-ceramic composite.
Room temperature conductivity of the glass-ceramic composite was observed to be 1.43 10–5 S.cm–1 with activation
energy 28 kJ.mol–1.
[Keywords: Superionic glasses, Crystallization kinetics, Solid electrolyte, Ionic conductivity] |
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