Details
| Original language | English |
|---|---|
| Pages (from-to) | 876-880 |
| Number of pages | 5 |
| Journal | Journal of the American Ceramic Society |
| Volume | 92 |
| Issue number | 4 |
| Publication status | Published - 9 Apr 2009 |
Abstract
X-ray diffraction and transmission electron microscopy were applied to investigate a sol-gel synthetic process for the mixed oxygen ion and electron conductor La2NiO4+δ with a K2NiF 4 structure type. The development of the La2NiO 4+δ is elucidated considering the influence of calcination temperatures and dwell times. Following the thermal decomposition of nitrate and organic precursors in an intermediate step, the lanthanum nickel oxide is obtained after a short dwell time above 750°C. This occurs by the transformation of an ultrafinely dispersed powder consisting of lanthanum oxycarbonate, lanthanum oxide, and nickel oxide. The pure La2NiO 4+δ phase was obtained by similar solid-state reactions between nanocrystalline powder particles at just 950°C.
ASJC Scopus subject areas
- Materials Science(all)
- Ceramics and Composites
- Materials Science(all)
- Materials Chemistry
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In: Journal of the American Ceramic Society, Vol. 92, No. 4, 09.04.2009, p. 876-880.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Crystalline intermediate phases in the sol-gel-based synthesis of La 2NiO4+δ
AU - Efimov, Konstantin
AU - Arnold, Mirko
AU - Martynczuk, Julia
AU - Feldhoff, Armin
PY - 2009/4/9
Y1 - 2009/4/9
N2 - X-ray diffraction and transmission electron microscopy were applied to investigate a sol-gel synthetic process for the mixed oxygen ion and electron conductor La2NiO4+δ with a K2NiF 4 structure type. The development of the La2NiO 4+δ is elucidated considering the influence of calcination temperatures and dwell times. Following the thermal decomposition of nitrate and organic precursors in an intermediate step, the lanthanum nickel oxide is obtained after a short dwell time above 750°C. This occurs by the transformation of an ultrafinely dispersed powder consisting of lanthanum oxycarbonate, lanthanum oxide, and nickel oxide. The pure La2NiO 4+δ phase was obtained by similar solid-state reactions between nanocrystalline powder particles at just 950°C.
AB - X-ray diffraction and transmission electron microscopy were applied to investigate a sol-gel synthetic process for the mixed oxygen ion and electron conductor La2NiO4+δ with a K2NiF 4 structure type. The development of the La2NiO 4+δ is elucidated considering the influence of calcination temperatures and dwell times. Following the thermal decomposition of nitrate and organic precursors in an intermediate step, the lanthanum nickel oxide is obtained after a short dwell time above 750°C. This occurs by the transformation of an ultrafinely dispersed powder consisting of lanthanum oxycarbonate, lanthanum oxide, and nickel oxide. The pure La2NiO 4+δ phase was obtained by similar solid-state reactions between nanocrystalline powder particles at just 950°C.
UR - http://www.scopus.com/inward/record.url?scp=64549135455&partnerID=8YFLogxK
U2 - 10.1111/j.1551-2916.2009.02943.x
DO - 10.1111/j.1551-2916.2009.02943.x
M3 - Article
AN - SCOPUS:64549135455
VL - 92
SP - 876
EP - 880
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
SN - 0002-7820
IS - 4
ER -