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J. Korean Ceram. Soc. > Volume 52(5); 2015 > Article
Journal of the Korean Ceramic Society 2015;52(5): 315.
doi: https://doi.org/10.4191/kcers.2015.52.5.315
Fabrication of YSZ-based Micro Tubular SOFC Single Cell using Electrophoretic Deposition Process
Seung-Min Yu, Ki-Tae Lee
Division of Advanced Materials Engineering, Chonbuk National University
ABSTRACT
Yttria-stabilized zirconia (YSZ)-based micro tubular SOFC single cells were fabricated by electrophoretic deposition (EPD) process. Stable slurries for the EPD process were prepared by adding phosphate ester (PE) as a dispersant in order to control the pH, conductivity, and zeta-potential. NiO-YSZ anode support, NiO-YSZ anode functional layer (AFL), and YSZ electrolyte were consecutively deposited on a graphite rod using the EPD process; materials were then co-sintered at $1400^{circ}C$ for 4 h. The thickness of the deposited layer increased with increasing of the applied voltage and the deposition time. A YSZ-based micro tubular single cell fabricated by the EPD process exhibited a maximum power density of $0.3W/cm^2$ at $750^{circ}C$.
Key words: Solid oxide fuel cells, Micro tubular single cell, Electrophoretic deposition, Slurry, Dispersant
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