Abstract
A new Y0.8Ba1.2Co2O5+δ cathode was successfully prepared by solid-state reaction method. The structure, microstructure, conductivity, coefficient of thermal expansion and electrochemical properties of the Y0.8Ba1.2Co2O5+δ cathode was conducted by XRD, SEM, 4 DC four-terminal method, thermal gravity analysis and thermomechanical analysis, respectively. The double perovskite structure Y0.8Ba1.2Co2O5+δ with YBa2Co3O9-δ second phase was observed in XRD pattern. The conductivity of Y0.8Ba1.2Co2O5+δ sample increased as temperature increased with a p-type conductor characterization. The Y0.8Ba1.2Co2O5+δ had a maximum conductivity of 240 S/cm at 350 oC. The coefficient of thermal expansion is 19.1 x 10-6, which is close to that of Samaria-doped Ceria (SDC) electrolyte. The Y0.8Ba1.2Co2O5+δ did not react with SDC electrolyte below 950 oC. The Y0.8Ba1.2Co2O5+δ is a potential cathode material for intermediate temperature solid oxide fuel cell.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
