Nanocomposite Ni-CGO synthesized by the citric method as a substrate for thin-film IT-SOFC

Zhenwei Wang, Yu Liu, Shin Ichi Hashimoto, Masashi Mori

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Ni-ceria cermets have been extensively investigated as candidates for the anode in intermediate-temperature solid oxide fuel cells. We have used the citric method to synthesize nanocomposite powders consisting of NiO (Ni metal content: 40-60% by volume) highly dispersed in Ce0.9Gd 0.1O1.95 (CGO). The microstructure characteristics and sintering behaviors of the nanocomposites were investigated. No impurity phases were observed and the shrinkage of these substrates matched well with that of a CGO electrolyte with a specific surface area of 11 m2/g. Densification of the CGO electrolyte layer to <5 μm thickness was achieved by co-firing the laminated electrolyte with the porous NiO-CGO substrate at 1400°C for 6 h.

Original languageEnglish
Pages (from-to)782-787
Number of pages6
JournalJournal of the Korean Ceramic Society
Volume45
Issue number12
DOIs
Publication statusPublished - 2008 Dec 1

Keywords

  • Anode
  • Ceria
  • Citric method
  • Nio
  • Sintering characteristics

ASJC Scopus subject areas

  • Ceramics and Composites

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