𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Electronic to ionic conductivity of glasses in the Na2O-V2O5-TeO2 system

✍ Scribed by G.D.L.K. Jayasinghe; M.A.K.L. Dissanayake; M.A. Careem; J.L. Souquet

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
400 KB
Volume
93
Category
Article
ISSN
0167-2738

No coin nor oath required. For personal study only.

✦ Synopsis

Glasses in the 2TeO,xNa,O( 1 -x)V,O, system have been synthesized for 0 5 x 5 1. Glass transition temperatures are between 220Β°C and 250Β°C. Conductivity data obey an Arrhenius type behaviour for temperatures ranging from room temperature to below their glass transition temperatures. Values of activation energies and pre-exponential factors in the V,O, rich region are low compared to those in the Na,O rich region, implying that the conductivity mechanisms in these two regions are different. Experimental data suggest that a polaron hopping mechanism operates in the electronically conducting domain of 0 S x < 0.5 and an interstitial pair mechanism operates in the ionically conducting domain of 0.5 < x I 1.

πŸ“œ SIMILAR VOLUMES

AC conductivity and dielectric studies i
AC conductivity and dielectric studies in V2O5–TeO2 and V2O5–CoO–TeO2 glasses
✍ T. Sankarappa; M. Prashant Kumar; G.B. Devidas; N. Nagaraja; R. Ramakrishnareddy πŸ“‚ Article πŸ“… 2008 πŸ› Elsevier Science 🌐 English βš– 219 KB

Single and mixed transition metal ions doped tellurite glasses were investigated for dielectric properties in the frequency range 50 Hz to 5 MHz and temperature range 300-500 K. From the total conductivity derived from the dielectric spectrum the frequency exponent, s, and dc and ac components of th

Electrochemical properties of glasses in
Electrochemical properties of glasses in the TeO2βˆ’V2O5 system
✍ M. Levy; F. Rousseau; M.J. Duclot πŸ“‚ Article πŸ“… 1988 πŸ› Elsevier Science 🌐 English βš– 93 KB

ELECTROCHEMICAL PROPERTIES OF GLASSES IN THE Tr SYSTEM M. LEVY, F. ROUSSEAU and M.J. DUCLOT ~borarolre d'lomque et d El~t~himie du Sohde (UM. 1213). hmi~t NatUral Polytechm~e de 6~ n o ~\*r ~ NISIX.~ ~1. r~ i.c~a~ ~. t~ ~1~~ ~,lJ .~ivit~ ~,h ,he V~O. ~.,~.t, ~e ~t~,hemi~l ~,~,~on of lit~i.= h.~ b~.