Abstract
La0.6Sr0.4Co0.2Fe0.8O3- δ, (LSCF) perovskite oxide is one of the most common cathode materials used in solid oxide fuel cells (IT-SOFCs), but vulnerable to the chromium deposition and poisoning in the presence of gaseous chromium species from metallic interconnect. In this work, the fundamental relationship between the surface segregation and Cr deposition and poisoning of LSCF cathodes is studied on dense LSCF bar samples. The detailed SEM and FIB-EDS analysis results clearly indicate the segregation of strontium and cobalt, forming individual SrO and CoOx particles on the LSCF surface after annealing at 800 °C for 96 h. The results indicate that Cr deposition occurs preferentially on the segregated SrO particles on the LSCF surface.
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.
