Characteristics of Slurry-Coated Nickel Zirconia Cermet Anodes for Solid Oxide Fuel Cells

Tatsuya Kawada, Natsuko Sakai, Harumi Yokokawa, Masayuki Dokiya, Masashi Mori, Tomoo Iwata

Research output: Contribution to journalArticlepeer-review

163 Citations (Scopus)

Abstract

Polarization characteristics were studied in nickel and yttria stabilized zirconia cermet (Ni-YSZ cermet) electrodes in order to search for an adequate fabrication condition of a planar solid oxide fuel cell. Several electrodes were prepared by the slurry coating method, and dc and ac polarization behaviors were investigated at 1273 K in H2-H2O atmosphere. An experimental equation was derived to describe a typical dc polarization curve of a Ni-YSZ cermet electrode. Effects of fabrication temperature, nickel content, and material powder were investigated in terms of deviation from this equation. Anodic overvoltage with a carefully prepared electrode was decreased to about 0.12V at 1 A/cm2.

Original languageEnglish
Pages (from-to)3042-3047
Number of pages6
JournalJournal of the Electrochemical Society
Volume137
Issue number10
DOIs
Publication statusPublished - 1990 Oct
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry

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