A comparative study of NiO-Ce0.9Gd0.1O1.95 nanocomposite powders synthesized by hydroxide and oxalate co-precipitation methods

Changsheng Ding, Kazuhisa Sato, Junichiro Mizusaki, Toshiyuki Hashida

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

In this study, NiO-Ce0.9Gd0.1O1.95 (NiO-GDC) nanocomposite powders, which were applied as anode materials of low temperature solid oxide fuel cells (SOFCs), were synthesized by hydroxide and oxalate reverse co-precipitation methods, respectively. The crystal phases, crystallite size, particle size, particle size distribution, and sintering characteristics of the synthesized NiO-GDC nanocomposite powders were investigated and compared. Results showed that the different co-precipitation methods affected strongly the synthesis and characteristics of the NiO-GDC nanocomposite powders. The NiO-GDC nanocomposite powders could be synthesized at lower temperature by the hydroxide reverse co-precipitation method, and the synthesized NiO-GDC nanocomposite powders had better sinterability. The NiO-GDC nanocomposite powders synthesized by the oxalate reverse co-precipitation method had smaller particle size and uniform particle size distribution and, however, were easy to result in crack formation in the sintered disks.

Original languageEnglish
Pages (from-to)85-92
Number of pages8
JournalCeramics International
Volume38
Issue number1
DOIs
Publication statusPublished - 2012 Jan

Keywords

  • A. Sintering
  • Co-precipitation synthesis
  • Nanocomposite powders
  • NiO-GDC

ASJC Scopus subject areas

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

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