Preparation of Porous Particles of Layered Perovskite-Like Titanate HLaTiO4

Layered perovskite-like oxides NaLaTiO 4 and K 2 La 2 Ti 3 O 10 , which correspond to the Ruddlesden–Popper phases, are synthesized using various amounts (30, 100, and 1000%) of excess alkali metal carbonate in the batch and transformed into the corresponding protonated forms HLaTiO 4 and H 2 La 2 T...

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Bibliographic Details
Published in:Glass physics and chemistry 2020-05, Vol.46 (3), p.272-276
Main Authors: Kurnosenko, S. A., Silyukov, O. I., Zvereva, I. A.
Format: Article
Language:English
Subjects:
Alkali metals
Aqueous solutions
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Composites
Crystal structure
Glass
Ion exchange
Materials Science
Morphology
Natural Materials
Nitric acid
Perovskites
Physical Chemistry
Polycrystals
Pore size
Porosity
Protonation
Short Communication
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Summary:Layered perovskite-like oxides NaLaTiO 4 and K 2 La 2 Ti 3 O 10 , which correspond to the Ruddlesden–Popper phases, are synthesized using various amounts (30, 100, and 1000%) of excess alkali metal carbonate in the batch and transformed into the corresponding protonated forms HLaTiO 4 and H 2 La 2 Ti 3 O 10 through the ion exchange in an aqueous solution of 0.1 M nitric acid. It is determined that an increase in the carbonate content in the reaction mixture does not affect the crystal structures of final compounds; however, it affects the morphology of HLaTiO 4 polycrystals in the case of NaLaTiO 4 protonation, that can be used for the targeted synthesis of particles with the pore size of 25 to 500 nm.
ISSN:1087-6596
1608-313X
DOI:10.1134/S1087659620030062