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 language | English (US) |
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Pages (from-to) | 1375-1381 |
Number of pages | 7 |
Journal | Journal of the European Ceramic Society |
Volume | 23 |
Issue number | 9 |
DOIs | |
State | Published - Aug 2003 |
Externally published | Yes |
Keywords
- Calcination
- LaNiO
- Organic
- Phase development
- Precursors
ASJC Scopus subject areas
- Ceramics and Composites
- Materials Chemistry