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Fabrication of YSZ-based Micro Tubular SOFC Single Cell using Electrophoretic Deposition Process

  • Yu, Seung-Min (Division of Advanced Materials Engineering, Chonbuk National University) ;
  • Lee, Ki-Tae (Division of Advanced Materials Engineering, Chonbuk National University)
  • Received : 2015.07.16
  • Accepted : 2015.07.27
  • Published : 2015.09.30

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 $750^{\circ}C$.

Keywords

Solid oxide fuel cells;Micro tubular single cell;Electrophoretic deposition;Slurry;Dispersant

Acknowledgement

Supported by : National Research Foundation of Korea (NRF)

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