Thermal decomposition products of the heteronuclear complex, LaNi(dhbaen) (NO3)(H2O)n

Hiromichi Aono, Nobuyuki Kondo, Masatomi Sakamoto, Enrico Traversa, Yoshihiko Sadaoka*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

The heteronuclear LaNi(dhbaen)(NO3 )(H2 O) n complex was synthesized and its thermal decomposition products were analyzed by differential thermal analysis (TG/DTA), X-ray diffraction (XRD), Fourier-transform infrared (FT-IR) spectroscopy, Auger electron spectroscopy (AES) with scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Hexagonal perovskite-type LaNiO3 having fine particle size was obtained by sintering at 600°C. AES showed that the elemental distributions of La, Ni, and O on the surface were very homogeneous for the sample decomposed at 900°C. The LaNiO3 decomposed to La3 Ni2 O7 and NiO when the heating temperature increases up to 1000°C. Heteronuclear LnNi(dhbaen)(NO3 )(H2 O)n complexes (with Ln=Pr, Nd, Sm, and Gd) were also synthesized. The perovskite-type LnNiO3 phase could not be formed by their thermal decomposition.

Original languageEnglish (US)
Pages (from-to)1375-1381
Number of pages7
JournalJournal of the European Ceramic Society
Volume23
Issue number9
DOIs
StatePublished - Aug 2003
Externally publishedYes

Keywords

  • Calcination
  • LaNiO
  • Organic
  • Phase development
  • Precursors

ASJC Scopus subject areas

  • Ceramics and Composites

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