Tuning Cu-Content LaSrNiCuO with Strontium Doping as Cobalt-Free Cathode Materials for High-Performance Anode-Supported IT-SOFCs.

Cu-content LaSrNiCuO perovskites with A-site strontium doping have been tuned as cobalt-free cathode materials for high-performance anode-supported SOFCs, working at an intermediate-temperature range. All obtained oxides belong to the -3 trigonal system, and phase transitions from the -3 space group to a -3 simple perovskite have been observed by HT-XRD studies. The substitution of lanthanum with strontium lowers the phase transition temperature, while increasing the thermal expansion coefficient (TEC) and oxygen non-stoichiometry δ of the studied materials.

NiO-BaCaCeYO as a Modified Anode Material Fabricated by the Tape Casting Method.

The development of new chemically resistant anodes for protonic ceramic fuel cells (PCFCs) is urgently required to avoid the costly deep hydrogen purification method. BaCaCeYO (5CBCY), which is more chemically resistant than BaCaCeYO, was here tested as a component of a composite NiO-5CBCY anode material. A preparation slurry comprising 5CBCY NiO, graphite, and an organic medium was tape cast, sintered and subjected to thermal treatment in 10 vol.