NDLI: Oxygen vacancy ordering in SrFe0.25Co0.75O2.63 perovskite material

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Dalton Transactions Vol - 46 Issue - 4

Dalton Transactions Vol - 46 Issue - 3

Dalton Transactions Vol - 46 Issue - 2

Dalton Transactions Vol -39

Dalton Transactions Vol -0

Oxygen vacancy ordering in SrFe_0.25Co_0.75O_2.63 perovskite material

Content Provider	Royal Society of Chemistry (RSC)
Author	Wattiaux, Alain Nénert, Gwilherm Toulemonde, Olivier Chennabasappa, Madhu Sanjulián, Javier Fernández García-Martín, Susana Gaudin, Etienne
Copyright Year	2017
Abstract	SrFe0.25Co0.75O2.63 was synthesized by a solid-state reaction. Its structural study at room temperature using conventional X-ray as well as neutron powder diffraction, electron diffraction and high-resolution transmission electron microscopy is presented. An oxygen-vacancy ordering related to the “314” model known for the Sr3Y1Co4O10.5 oxide is proposed despite neither an A-site ordering nor an A-site mismatch. By means of Mössbauer spectroscopy, Mohr salt titration and the difference in the neutron cross sections of Fe and Co, a cation distribution within the crystallographic sites as the following Sr4(Fe0.143+Co0.363+)48h(Fe0.114+Co0.144+Co0.253+)48fO10.52 is suggested, highlighting a natural layered structure with Fe and Co in higher oxidation states in the oxygen replete layers than in the oxygen deficient ones.
Starting Page	1624
Ending Page	1633
Page Count	10
File Format	HTM / HTML PDF
ISSN	14779226
Volume Number	46
Issue Number	5
Journal	Dalton Transactions
DOI	10.1039/c6dt03927h
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Fe and Co Mohr X-ray crystallography Neutron diffraction Powder diffraction Electron diffraction High-resolution transmission electron microscopy Mössbauer spectroscopy Titration Ion Oxygen
Content Type	Text
Resource Type	Article
Subject	Inorganic Chemistry

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