Hydrothermal synthesis, crystal structure and thermal stability of Ba-titanate nanotubes with layered crystal structure

BaTi 3O 7· nH 2O nanotubes have been synthesized through a hydrothermal reaction between Na-rich trititanate nanotubes and Ba(OH) 2 within the pH range 12–8.2. These nanotubes possess the same layered crystal structure of the precursor Na 2− x H x Ti 3O 7· nH 2O. They also keep the morphology of the...

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Bibliographic Details
Published in:	Materials research bulletin Vol. 43; no. 6; pp. 1562 - 1572
Main Authors:	Marinkovic, B.A., Jardim, P.M., Morgado, E., de Abreu, M.A.S., Moure, G.T., Rizzo, F.
Format:	Journal Article
Language:	English
Published:	Elsevier Ltd 03-06-2008
Subjects:	A. Layered compounds A. Nanostructures C. Electron microscopy C. X-ray diffraction D. Crystal structure C. Electron microscopy A. Layered compounds A. Nanostructures C. X-ray diffraction D. Crystal structure
Online Access:	Get full text
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Summary:	BaTi 3O 7· nH 2O nanotubes have been synthesized through a hydrothermal reaction between Na-rich trititanate nanotubes and Ba(OH) 2 within the pH range 12–8.2. These nanotubes possess the same layered crystal structure of the precursor Na 2− x H x Ti 3O 7· nH 2O. They also keep the morphology of their precursor Na-trititanate nanotubes used in the synthesis, having an external diameter of 20–25 nm. The BaTi 3O 7· nH 2O nanotubes remained fully stable up to 300 °C, while nanotubular form continues to exist up to 600 °C, together with amorphous particles.
ISSN:	0025-5408 1873-4227
DOI:	10.1016/j.materresbull.2007.06.016