Direct observation of TiO6 octahedron forming titanate nanotube by advanced transmission electron microscopy

The nanostructure of titanate nanotubes known as a one-dimensional catalytic/electric subject is combinatorially characterized using x-ray diffraction (XRD), micro-Raman, photoluminescence (PL) and advanced electron microscopy. The micro-Raman and PL spectra prove the successful synthesis of TiO6 oc...

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Bibliographic Details
Published inNanotechnology Vol. 20; no. 40; p. 405709
Main Authors Yoshida, K, Miao, L, Tanaka, N, Tanemura, S
Format Journal Article
LanguageEnglish
Published England IOP Publishing 07.10.2009
Subjects
Diffraction
Electron microscopy
Microscopy, Electron, Scanning Transmission
Microscopy, Electron, Transmission
Nanocomposites
Nanomaterials
Nanostructure
Nanotechnology
Nanotubes - chemistry
Nanotubes - ultrastructure
Octahedrons
Titanates
Titanium - chemistry
Titanium dioxide
X-Ray Diffraction
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Summary:The nanostructure of titanate nanotubes known as a one-dimensional catalytic/electric subject is combinatorially characterized using x-ray diffraction (XRD), micro-Raman, photoluminescence (PL) and advanced electron microscopy. The micro-Raman and PL spectra prove the successful synthesis of TiO6 octahedron units in macroscopic scale. Cryo-high-angle annular dark-field (HAADF)-STEM and aberration-corrected (AC) TEM visualize in real-space the TiO6 octahedron unit formed as a TiO2-based tubular structure prepared by the alkaline hydrothermal methods. The chirality and scrolling-up mechanism of the TiO6 octahedron nanosheets in relation to an asymmetrical chemical environment and mechanical tensions are discussed.
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ISSN:0957-4484
1361-6528
1361-6528
DOI:10.1088/0957-4484/20/40/405709