Thin yttrium-stabilized zirconia electrolyte solid oxide fuel cells by centrifugal casting

Jiang Liu*, Scott A. Barnett

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

74 Scopus citations

Abstract

A centrifugal casting technique was developed for depositing thin 8-mol%-yttrium-stabilized zirconia (YSZ) electrolyte layers on porous NiO-YSZ anode substrates. After the bilayers were cosintered at 1400°C, dense pinhole-free YSZ coatings with thicknesses of ≈25 μm were obtained, while the Ni-YSZ retained porosity. After La0.6Sr0.4Co0.2Fe0.8O3 (LSCF)-Ce0.9Gd0.1O1.95 (GDC) or La0.8Sr0.2MnO3 (LSM)-YSZ cathodes were deposited, single SOFCs produced near-theoretical open-circuit voltages and power densities of ≈1 W/cm2 at 800°C. Impedance spectra measured during cell tests showed that polarization resistances accounted for ≈70%-80% of the total cell resistance.

Original languageEnglish (US)
Pages (from-to)3096-3098
Number of pages3
JournalJournal of the American Ceramic Society
Volume85
Issue number12
DOIs
StatePublished - Dec 2002

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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