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Type: Artigo de periódico
Title: Highlighting the mechanisms of the titanate nanotubes to titanate nanoribbons transformation
Author: Viana, BC
Ferreira, OP
Souza, AG
Hidalgo, AA
Mendes, J
Alves, OL
Abstract: Titanate nanorods, nanoribbons, and nanofibers synthesized by hydrothermal treatment are being investigated by several groups. Similar to titanate nanotubes, with average diameter of 9 nm, there is a strong controversy regarding the composition and microscopic formation mechanism of these non-hollow nanostructures (nanoribbons). In this article, we report the synthesis and characterization of the titanate nanostructures by exploiting some aspects that were not exploited so far. By using X-ray diffraction, FT-infrared and Raman spectroscopies and electron microscopy, we have studied the intermediate structure and morphology between nanotubes and the non-hollow nanostructures. Our findings give further evidence that the transformation of nanotubes into non-hollow nanostructures is induced by a sequence of both oriented attachment and Ostwald rippening cooperative mechanisms.
Subject: Titanate nanostructures
Vibrational spectroscopies
X-ray diffraction
Electron microscopy
One-dimensional nanostructures
Country: Holanda
Editor: Springer
Citation: Journal Of Nanoparticle Research. Springer, v. 13, n. 8, n. 3259, n. 3265, 2011.
Rights: fechado
Identifier DOI: 10.1007/s11051-011-0240-3
Date Issue: 2011
Appears in Collections:Unicamp - Artigos e Outros Documentos

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