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Synthesis and structural studies of Sr2Co2-xAlxO5, 0.3 ≤ x ≤ 0.5
Stockholm University, Faculty of Science, Department of Physical, Inorganic and Structural Chemistry.
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2004 In: Journal of Solid State Chemistry, ISSN 0022-4596, Vol. 177, no 4-5, 1592-1597 p.Article in journal (Refereed) Published
Place, publisher, year, edition, pages
2004. Vol. 177, no 4-5, 1592-1597 p.
Identifiers
URN: urn:nbn:se:su:diva-22702OAI: oai:DiVA.org:su-22702DiVA: diva2:189293
Note
Part of urn:nbn:se:su:diva-1047Available from: 2006-05-11 Created: 2006-05-11Bibliographically approved
In thesis
1. Studies of Oxygen Deficient Complex Cobaltates with Perovskite Related Structures
Open this publication in new window or tab >>Studies of Oxygen Deficient Complex Cobaltates with Perovskite Related Structures
2006 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The present thesis deals with the investigation of some perovskite related complex cobaltates. The phases Sr2Co2-xGaxO5 (0.3 ≤ x ≤ 0.7), Sr2Co2-xAlxO5 (0.3 ≤ x ≤ 0.5), Sr1-xBixCoO3-y (0.1 ≤ x ≤ 0.2), Sr0.75Y0.25Co1-xGaxO2.625 (0.125 ≤ x ≤ 0.375) and Sr0.75Y0.25Co1-xFexO2.625+δ (0.125 ≤ x ≤ 0.625) were synthesised and characterised. All these compounds crystallises with similar structures, they are all composed by altering layers of octahedra and tetrahedra although in the two former, the tetrahedra are organised in chains (the Brownmillerite structure), while in the latter three the tetrahedra arranges as segregated Co4O12 units (the 314 type structure). The techniques X-ray and neutron diffraction, transmission electron microscopy, thermal analysis and magnetic measurements were used to track structural and important physical properties.

Place, publisher, year, edition, pages
Stockholm: Institutionen för fysikalisk kemi, oorganisk kemi och strukturkemi, 2006. 53 p.
National Category
Other Basic Medicine
Identifiers
urn:nbn:se:su:diva-1047 (URN)91-7155-254-5 (ISBN)
Public defence
2006-06-02, Magnélisalen, Kemiska övningslaboratoriet, Svante Arrhenius väg 12 A, Stockholm, 13:00
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Available from: 2006-05-11 Created: 2006-05-11Bibliographically approved

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