Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 339-353 |
| Seitenumfang | 15 |
| Fachzeitschrift | Progress in Solid State Chemistry |
| Jahrgang | 35 |
| Ausgabenummer | 2-4 SPEC. ISS. |
| Publikationsstatus | Veröffentlicht - 12 Jan. 2007 |
Abstract
A synthetic route for advanced perovskites is elucidated that consists of a combined EDTA/citrate complexing of metal cations and the subsequent drying and firing at moderate temperatures. A fine-scale intermixing of cations is maintained during all the processing steps. The perovskite-type oxide is formed already in an intermediate step at 700 °C by the reaction of an ultra-finely dispersed powder consisting of a mixed barium-strontium carbonate, a zinc-iron spinel, and zinc oxide. The process yields powders of good sinterability and finally dense ceramics composed of stoichiometric perovskite grains of the type (Ba,Sr)(Zn,Fe)O3-δ..
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Physik und Astronomie (insg.)
- Physik der kondensierten Materie
- Chemie (insg.)
- Physikalische und Theoretische Chemie
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in: Progress in Solid State Chemistry, Jahrgang 35, Nr. 2-4 SPEC. ISS., 12.01.2007, S. 339-353.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Advanced Ba0.5Sr0.5Zn0.2Fe0.8O3-δ perovskite-type ceramics as oxygen selective membranes
T2 - Evaluation of the synthetic process
AU - Feldhoff, Armin
AU - Martynczuk, Julia
AU - Wang, Haihui
N1 - Funding Information: The authors gratefully thank the Deutsche Forschungsgemeinschaft (DFG) for financial support in the frame of grant FE 928/1-1.
PY - 2007/1/12
Y1 - 2007/1/12
N2 - A synthetic route for advanced perovskites is elucidated that consists of a combined EDTA/citrate complexing of metal cations and the subsequent drying and firing at moderate temperatures. A fine-scale intermixing of cations is maintained during all the processing steps. The perovskite-type oxide is formed already in an intermediate step at 700 °C by the reaction of an ultra-finely dispersed powder consisting of a mixed barium-strontium carbonate, a zinc-iron spinel, and zinc oxide. The process yields powders of good sinterability and finally dense ceramics composed of stoichiometric perovskite grains of the type (Ba,Sr)(Zn,Fe)O3-δ..
AB - A synthetic route for advanced perovskites is elucidated that consists of a combined EDTA/citrate complexing of metal cations and the subsequent drying and firing at moderate temperatures. A fine-scale intermixing of cations is maintained during all the processing steps. The perovskite-type oxide is formed already in an intermediate step at 700 °C by the reaction of an ultra-finely dispersed powder consisting of a mixed barium-strontium carbonate, a zinc-iron spinel, and zinc oxide. The process yields powders of good sinterability and finally dense ceramics composed of stoichiometric perovskite grains of the type (Ba,Sr)(Zn,Fe)O3-δ..
KW - Barium carbonate
KW - Calcination
KW - EDXS
KW - EELS
KW - Electron microscopy
KW - Ellingham diagram
KW - HRTEM
KW - Perovskite
KW - Sintering
KW - Sol gel
KW - Strontium carbonate
KW - Zinc-iron spinel
UR - http://www.scopus.com/inward/record.url?scp=34347232342&partnerID=8YFLogxK
U2 - 10.1016/j.progsolidstchem.2007.01.007
DO - 10.1016/j.progsolidstchem.2007.01.007
M3 - Article
AN - SCOPUS:34347232342
VL - 35
SP - 339
EP - 353
JO - Progress in Solid State Chemistry
JF - Progress in Solid State Chemistry
SN - 0079-6786
IS - 2-4 SPEC. ISS.
ER -