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A polymer complexing route for low temperature synthesis of Perovskite lanthanum aluminate powder
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
2010 (English)In: Key Engineering Materials, ISSN 1013-9826, E-ISSN 1662-9795, Vol. 434 - 435, 863-867 p.Article in journal (Refereed) Published
Abstract [en]

Lanthanum aluminate powders were prepared via a polymer complexing method by using PEG as complexing agent. The LaAlO3 powder was characterized by XRD and SEM. The influence of processing parameters such as molar ratio of PEG monomers to metal cations (PEG:Men+) and aging process on the phase purity and powder morphology were investigated. The calcined powder with the PEG:Men+ ratio larger than 2:1 may contain the secondary phase, namely La2O3. The formation of phase pure LaAlO3 powder occurs when the PEG:Men+ ratio is 1:1 or enough gelation time is involved. Although the phase pure powder is obtained by this PEG method, all the single phase LaAlO3 powders are found to have seriously aggregated particles. The weakly agglomerated powder morphology is only found in the powders which contain La2O3.

Place, publisher, year, edition, pages
2010. Vol. 434 - 435, 863-867 p.
Keyword [en]
Lanthanum Aluminate, PEG, Perovskite, Polymer Complex
National Category
Inorganic Chemistry
Identifiers
URN: urn:nbn:se:su:diva-50384DOI: 10.4028/www.scientific.net/KEM.434-435.863OAI: oai:DiVA.org:su-50384DiVA: diva2:381237
Note
3 författare totaltAvailable from: 2010-12-25 Created: 2010-12-25 Last updated: 2017-12-11Bibliographically approved

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