Abstract
A new type of anode structure, composed of a group of La0.75Sr0.25Cr0.5Mn0.5O3-δ-Ce0.8Sm0.2O1.9 (LSCM-SDC) compositionally graded anode functional layers (CGAFL) and a porous SDC interlayer adjacent to the electrolyte, was fabricated by screen printing method for intermediate-temperature solid oxide fuel cells (IT-SOFCs). The results of electrochemical impedance spectroscopy (EIS) show that the polarization resistance decreased from 3.49Ωcm2 to 1.85Ωcm2 at 800°C in H2 after introducing CGAFL. In addition, the polarization resistance further decreased to 0.30Ωcm2 when the CGAFL combined with the SDC interlayer, demonstrating a reduction by factors of 11.6 and 6.2, respectively, compared with the non-graded cell and the CGAFL cell without the SDC interlayer. The single cell displayed that the CGAFL combined with the SDC interlayer increased the maximum power density by factors of 2.9 and 2.1, respectively, at 800°C. These results indicated that the CGAFL combined with the SDC interlayer may be a potential electrode structure for design optimization.
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.
