Abstract
BaCe0·7Zr0·1Y0·2O3−δ (BCZY) electrolyte and La0·6Sr0·4Co0·2Fe0·8O3−δ (LSCF) cathode perovskite materials were synthesised using the citrate–nitrate combustion method. NiO–BCZY anode supported thin film sold oxide fuel cells (SOFCs) was fabricated using spin coating and co-sintering process. LSCF exhibited good chemical stability in H2O containing atmosphere and chemical compatibility with BCZY proton conducting material. The electrochemical performance of the Ag–LSCF composite cathode was dependent on the Ag content. The thin film proton conducting SOFC displayed highest maximum power density of 563 mW cm−2 at 700°C for 10 wt-%Ag–(LSCF+BCZY) composite cathode.
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