Details
| Original language | English |
|---|---|
| Pages (from-to) | 339-353 |
| Number of pages | 15 |
| Journal | Progress in Solid State Chemistry |
| Volume | 35 |
| Issue number | 2-4 SPEC. ISS. |
| Publication status | Published - 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..
Keywords
- Barium carbonate, Calcination, EDXS, EELS, Electron microscopy, Ellingham diagram, HRTEM, Perovskite, Sintering, Sol gel, Strontium carbonate, Zinc-iron spinel
ASJC Scopus subject areas
- Materials Science(all)
- Physics and Astronomy(all)
- Condensed Matter Physics
- Chemistry(all)
- Physical and Theoretical Chemistry
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In: Progress in Solid State Chemistry, Vol. 35, No. 2-4 SPEC. ISS., 12.01.2007, p. 339-353.
Research output: Contribution to journal › Article › Research › 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 -