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Alkoxide Route to La0.5Sr0.5CoO3 Films and Powders
Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Materials Chemistry. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Materials Chemistry, Inorganic Chemistry. oorganisk kemi.
Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Materials Chemistry. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Chemistry, Department of Materials Chemistry, Inorganic Chemistry. oorganisk kemi.
2005 (English)In: Journal of the American Ceramic Society, Vol. 88, no 8, 2099-2105 p.Article in journal (Refereed) Published
Abstract [en]

An all-alkoxide route to films and nano-phase powders of the La0.5Sr0.5CoO3 perovskite is described. To our knowledge, this is the first purely alkoxide-based route to (La1xSrx)CoO3, and it yields phase-pure and elementally homogeneous perovskite at 700°C by heating at 2°C/min. At 700°C, a cubic unit cell was obtained with ac=3.853Å, and after further heating to 1000°C, a rhombohedral cell could be indexed: ar=5.417 Å, r=59.94°. Ninety to 130 nm thick films of La0.5Sr0.5CoO3 were obtained by spin coating. The gel-to-oxide conversion was studied in some detail, using thermo-gravimetric analysis, differential scanning calorimetry, powder X-ray diffraction, IR spectroscopy, and transmission electron microscope equipped with an energy-dispersive X-ray spectrometer.

Place, publisher, year, edition, pages
2005. Vol. 88, no 8, 2099-2105 p.
National Category
Inorganic Chemistry
Identifiers
URN: urn:nbn:se:uu:diva-73935DOI: doi:10.1111/j.1551-2916.2005.00424.xOAI: oai:DiVA.org:uu-73935DiVA: diva2:101846
Available from: 2005-08-09 Created: 2005-08-09 Last updated: 2011-01-11

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Westin, Gunnar

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