The Investigation of Perovskite LaCo_(0.6)Ni_(0.4)O_(3-δ) as Cathode Interface Contact Material for Intermediate Temperature Solid Oxide Fuel Cells

摘要

The goal of this study is to identify LaCo_(0.6)Ni_(0.4)O_(3-δ) (LCN) as reliable cathode contact material for intermediate temperature solid oxide fuel cells (SOFC). LCN was prepared through the polymeric steric entrapment precursor route and calcined at 800 °C which shows single perovskite phase. Area specific resistance (ASR) of LCN was measured at 750 °C. The investigation shows that the ASR can be maintained about 50 mΩ-cm~2 for 100 hours operation, and presented ASR stability within 10th thermal cycles. The excellent performance of LCN is attributed to good interface adhesion between LCN and interconnect alloy.