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|Type:||Artigo de periódico|
|Title:||Highlighting The Mechanisms Of The Titanate Nanotubes To Titanate Nanoribbons Transformation|
Souza Filho A.G.
Mendes Filho J.
|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. © 2011 Springer Science+Business Media B.V.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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