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About the crystal structure of La1−xSrxCoO3−δ (0≤x≤0.6)

Published online by Cambridge University Press:  10 January 2013

Nicole M. L. N. P. Closset ,
René H. E. van Doorn ,
Henk Kruidhof  and
Jaap Boeijsma
Nicole M. L. N. P. Closset
Affiliation:
Laboratory of Inorganic Chemistry and Materials Science, Department of Chemical Technology, University of Twente, P.O. Box 217, 7500 AE Enschede, the Netherlands
René H. E. van Doorn*
Affiliation:
Laboratory of Inorganic Chemistry and Materials Science, Department of Chemical Technology, University of Twente, P.O. Box 217, 7500 AE Enschede, the Netherlands
Henk Kruidhof
Affiliation:
Laboratory of Inorganic Chemistry and Materials Science, Department of Chemical Technology, University of Twente, P.O. Box 217, 7500 AE Enschede, the Netherlands
Jaap Boeijsma
Affiliation:
Laboratory of Chemical Physics, Department of Chemical Technology, University of Twente, P.O. Box 217, 7500 AE Enschede, the Netherlands
*
a) Corresponding author; E-mail: r.h.e.vandoorn@ct.utwente.nl
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Abstract

The crystal structure of La1−xSrxCoO3−δ (0≤x≤0.6) has been studied, using powder X-Ray diffraction. The crystal structure shows a transition from rhombohedral distorted perovskite for LaCoO3−δ into cubic perovskite for La0.4Sr0.6CoO3−δ. The cubic unit cell parameter is ac=3.8342(1) Å for La0.4Sr0.6CoO3−δ, the space group probably being Pm3m. Using a hexagonal setting, the cell parameters for La0.5Sr0.5CoO3−δ, are a=5.4300(3) Å, c=13.2516(10) Å; a=5.4375(1) Å, c=13.2313(4) Å for La0.6Sr0.4CoO3−δ; a=5.4437(1) Å, c=13.2085(5) Å for La0.7Sr0.3CoO3−δ; a=5.4497(2) Å, c=13.1781(6) Å for La0.8Sr0.2CoO3−δ and a=5.4445(2) Å, c=13.0936(6) Å for LaCoO3−δ with the space group probably being R3c.

Type
Research Article
Information
Powder Diffraction , Volume 11 , Issue 1 , March 1996 , pp. 31 - 34
Copyright
Copyright © Cambridge University Press 1996

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