Abstract
This report summarizes the testing and analysis results on the electrochemical evaluation of a micro-tubular SOFC supported by a micro anode tube, composed of Sc2O3-doped ZrO2 (ScSZ) and NiO mixture. The cell was fabricated through a co-sintering of the ScSZ electrolyte and NiO-ScSZ anode support, and then a La0.6Sr0.4Co0.2Fe0.8O3-x-Ce0.9Gd0.1O1.95 cathode layer was deposited on the electrolyte film. Evaluation was conducted using a potentio/galvanostat and impedance analyzer under a humidified hydrogen flow. Power densities at 0.7 V were 29.4, 154.3 and 382.1 mW/cm2 at 500, 550 and 600 C, respectively. Impedance analyses showed that with increasing operation temperature, ohmic and electrode activation resistances (semicircle at higher frequency region) became decreased, while gas diffusion resistance (semicircle at lower frequency region) depended weakly upon the temperature above 550 C.
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.
