Fabrication and characterization of SSZ tape cast electrolyte-supported solid oxide fuel cells

Chao Jin, Yachun Mao, David W. Rooney, Naiqing Zhang*, Kening Sun

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

A 10 mol%Sc2O3, 1 mol%CeO2 stabilized-ZrO2 (SSZ) powder was successfully prepared using the sol-gel method. Subsequent SSZ electrolyte pellets were prepared by tape casting technique and sintered at 1400 °C, 1450 °C, 1500 °C, 1550 °C and 1600 °C. These were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and electrochemical impedance spectroscopy (EIS). SSZ showed a pure cubic phase after sintering, the grain size of SSZ increased with the increase of sintering temperature. The SSZ sintered at 1550 °C showed the highest ion conductivity. The maximum power densities of Ni-SSZ/SSZ/La0.8Sr0.2MnO3-δ (LSM)-SSZ single cells sintered at 1550 °C were 0.18, 0.36, 0.51 and 0.72 W cm-2 at 650, 700, 750 and 800 °C, respectively. The polarization resistance (Rp) of the single cell attained 0.201 Ω cm2 at 800 °C.

Original languageEnglish
Pages (from-to)5523-5529
Number of pages7
JournalCeramics international
Volume42
Issue number4
Early online date28 Dec 2015
DOIs
Publication statusPublished - Mar 2016

Keywords

  • 1 mol%CeO stabilized-ZrO
  • 10 mol%ScO
  • Electrolyte-supported SOFCs
  • Ionic conductivity
  • Tape casting

ASJC Scopus subject areas

  • Ceramics and Composites
  • Process Chemistry and Technology
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Materials Chemistry

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