| dc.contributor.author |
Dissanayake, M.A.K.L. |
en_US |
| dc.contributor.author |
Sumathipala, H.H. |
en_US |
| dc.contributor.author |
West, A.R. |
en_US |
| dc.date.accessioned |
2014-11-19T04:44:52Z |
|
| dc.date.available |
2014-11-19T04:44:52Z |
|
| dc.date.issued |
1994 |
|
| dc.identifier.uri |
http://repository.kln.ac.lk/handle/123456789/4013 |
|
| dc.description.abstract |
In the system Li4TiO4?Li2SO4, a wide range of solid solutions, Li4 ? 2xSxTi1 ?xO4(0 < x < 0.2) with Li4TiO4 structure is formed. The ionic conductivity increases with x and exhibits a maximum (bulk) value of 8.30 ? 10?6 S cm?1at 27 �C with an activation energy of 0.51 eV for x= 0.2. The enhancement in conductivity is associated with an increase in concentration of lithium-ion vacancies, created via the mechanism 2Li++ Ti4+ S6+, but is attributable specifically to a decrease in activation energy for conduction. This is the first report of high Li+-ion conductivity in the Li4TiO4structural family. |
en_US |
| dc.publisher |
Journal of Materials Chemistry |
en_US |
| dc.title |
New Li+-ion conductors, Li4 ? 2xTi1 ?xSxO4, based on the Li4TiO4 structure |
|
| dc.type |
article |
en_US |
| dc.identifier.department |
Physics |
en_US |