Electrochemical Performance and Reaction Mechanism of LaNi_0.6Fe_0.4O_3-δ – Ce_0.9Gd_0.1O_1.95 Composite Electrode for Solid Oxide Fuel Cell

Abstract

Composite cathodes consisting of multiphase materials have been attracted attention for the application at the intermediate temperature range of SOFC. The strategy has been applied to combine the electronically conductive electrode with ionically conducting oxide resulting high electrochemical performance at intermediate temperature. This idea is also applied into LaNi 0.6 Fe 0.4 O 3- δ as alternative cathode SOFC which combined with Ce 0.9 Gd 0.1 O 1.95 to improve the electrochemical performance. In this study, the appropriate volume ratio and sintering temperature of the composite are affecting the electrochemical performance will be shown, and the detailed electrochemical reaction mechanism also will be discussed as aid for the further research.