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Optimization on technical parameters for fabrication of SDC film by screen-printing used as electrolyte in IT-SOFC

Journal of Physics and Chemistry of Solids

Sm-doped Ceria (SDC) electrolyte film was successfully fabricated on anode substrate of NiO-SDC by screen-printing. Some technical parameters for fabrication were investigated and optimized, including printing times, ink composition and sintering temperature. Scanning electron microscope (SEM) measurement was done to check the microstructures of SDC film and single cell. The parameters greatly affected the quality of SDC film and cell performance. The single cell with the optimum parameters exhibited an OCV of 0.82 V and a power density of 0.5 W/cm(2) at 600 degrees C. (C) 2008 Elsevier Ltd. All rights reserved.

关键词: thin films;electrochemical properties;microstructure;oxide fuel-cells;ysz electrolyte;thin-film;electrochemical;performance;electrophoretic deposition;reduced-temperature;cathode;anode