Co-Precipitation synthesis and characterization of NiO-Ce0 8Sm 0.2O 1.9 nanocomposite powders: Effect of precipitation agents

Changsheng Ding, Hongfei Lin, Kazuhisa Sato, Toshiyuki Hashida

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

NiO-Ce 0.8Sm 0.2O 1.9 (NiO-SDC) nanocomposite powders applied as promising anode material for low-temperature solid oxide fuel cells (SOFCs) were synthesized by hydroxide co-precipitation method using NH 3·H 2O, NaOH and NH 3·H 2O ed NaOH as precipitation agents. The crystal phases, morphologies and sintering behavior of the synthesized NiO-SDC nanocomposite powders were investigated by means of X-ray diffraction (XRD), transmission electron microscopy (TEM) and sintering experiments. The effect of precipitation agents on the synthesis of the NiO-SDC nanocomposite powders was discussed. Results show that different precipitation agents influence greatly the synthesis and characteristics of the NiO-SDC nanocomposite powders. The NiO-SDC nanocomposite powders synthesized with NH 3 · H 2O deviate from the original composition due to the loss of Ni. The loss of Ni is avoided and nano-sized NiO-SDC composite powders are synthesized, when NaOH and NH 3·H 2O NaOH are used as precipitation agents. The NiO-SDC nanocomposite powders can be synthesized at relatively low temperature using NH 3·H 2O NaOH as precipitation agent, and the synthesized NiO-SDC nanocomposite powders show good sintering characteristics.

Original languageEnglish
Pages (from-to)2336-2343
Number of pages8
JournalJournal of Nanoscience and Nanotechnology
Volume11
Issue number3
DOIs
Publication statusPublished - 2011 Mar 1

Keywords

  • Co-precipitation
  • Nanocomposite powders
  • NiO-SDC
  • SOFC
  • Sintering

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics

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