The conductivity of co-dopant ceria electrolyte

Abstract

A kind of novel ceria electrolyte was examined. Various trivalent oxides were added as co-dopants to Ce 0.8 Gd 0.2 O 1.9 , and their effects on the conductivity of ceria electrolyte were discussed. It has been found that the co-dopant of trivalent oxides of Sm, Nd, La and Y improves the ionic conductivity notably. Furthermore, the fine original powders, co-dopant and higher sintering temperature may hasten the sintering.