Formation of a Real Structure of Perovskites (La1−x , Sr x )CoO3 −δ in the Region of the Morphotropic Phase Transition Full article
| Journal |
Journal of Structural Chemistry
ISSN: 0022-4766 , E-ISSN: 1573-8779 |
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| Output data | Year: 1998, Volume: 39, Number: 1, Pages: 75-79 Pages count : 5 DOI: 10.1007/BF02873828 | ||
| Tags | Perovskite; Real Structure; Hexagonal Phase; Electron Microscopy Data; Coherent Scattering Region | ||
| Authors |
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| Affiliations |
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Funding (2)
| 1 | Russian Foundation for Basic Research | 96-03-01167 |
| 2 | Russian Foundation for Basic Research | 96-03-34035 |
Abstract:
Precision X-ray diffractometry with synchrotron radiation and transmission electron microscopy are used to show that the extent of hexagonal distortion of the perovskite cell of the (La1−x, Sr x )CoO3−δ system decreases and the microstructure of the samples changes when La is substituted by Sr; these changes are due to increased microstrains in the structure and subsequent formation of microunits. The microunit structure of particles in the region of the morphotropic transition 0.3≤x≤0.4, which is a consequence of the metastable state of the system, may be the reason for the high catalytic activity of the samples which we found previously.
Cite:
Tsybulya S.V.
, Kryukova G.N.
, Isupova L.A.
, Shmakov A.N.
, Cherepanova S.V.
, Sadykov V.A.
Formation of a Real Structure of Perovskites (La1−x , Sr x )CoO3 −δ in the Region of the Morphotropic Phase Transition
Journal of Structural Chemistry. 1998. V.39. N1. P.75-79. DOI: 10.1007/BF02873828 WOS Scopus РИНЦ ANCAN OpenAlex
Formation of a Real Structure of Perovskites (La1−x , Sr x )CoO3 −δ in the Region of the Morphotropic Phase Transition
Journal of Structural Chemistry. 1998. V.39. N1. P.75-79. DOI: 10.1007/BF02873828 WOS Scopus РИНЦ ANCAN OpenAlex
Original:
Цыбуля С.В.
, Крюкова Г.Н.
, Исупова Л.А.
, Шмаков А.Н.
, Черепанова С.В.
, Садыков В.А.
Особенности формирования реальной структуры перовскитов состава (La1–x, Srx)CoO3–δ в области морфотропного фазового перехода
Журнал структурной химии. 1998. Т.39. №1. С.92-97. РИНЦ
Особенности формирования реальной структуры перовскитов состава (La1–x, Srx)CoO3–δ в области морфотропного фазового перехода
Журнал структурной химии. 1998. Т.39. №1. С.92-97. РИНЦ
Dates:
| Submitted: | Jun 4, 1997 |
| Published print: | Jul 1, 1998 |
Identifiers:
| Web of science: | WOS:000074928000011 |
| Scopus: | 2-s2.0-27544505779 |
| Elibrary: | 13276265 |
| Chemical Abstracts: | 1998:487594 |
| Chemical Abstracts (print): | 129:209479 |
| OpenAlex: | W1968547454 |