Samsonnesaraj, A. and Arulraj, I. and Pattabiraman, R.
(2001)
Alternate Electrolyte Materials for Intermediate Temperature
Solid Oxide Fuel Cells.
Transactions of the SAEST, 36 (3).
pp. 89-96.
Abstract
The solid oxide fuel cell (SOFC) employs yttria-stabilized zirconia (YSZ) as the oxide lon conducting electrolyte. Because of the life limiting problems associated with the high temperature of operation(1273 K)of the YSZ electrolyte based cells, attempts are being made to develop alternate electrolytes which have oxide ion conductivity values comparable with that of YSZ at intermediate temperature (around 1073 K, Intermediate temperature Solid Oxide Fuel Cell -ITSOFC). Partially substituted barium cerate perovskites were reported to have adequate ionic conductivity at 1073 K. Similarly, LaGa0 materials were also reported to have comparable ionic conductivity values. In this paper the fundamental aspects, problems and prospects fusing LaGaOJ based electrolytes in ITSOFC system and their systematic evolution in their eventual application are presented an discussed.
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