Journal ArticleDOI
Preparation and structure analysis of titanium oxide nanotubes
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In this paper, the atomic structure of the synthesized tubular material is imaged by high-resolution transmission electron microscopy (HRTEM), and the composition of individual tubular structures is determined using selected area energy dispersive X-ray spectroscopy (EDX).Abstract:
Well crystallized nanoscale tubular materials have been synthesized via the reaction of TiO2 crystals of either anatase or rutile phase and NaOH aqueous solution. The atomic structure of the synthesized tubular material is imaged by high-resolution transmission electron microscopy (HRTEM), and the composition of individual tubular structures is determined using selected area energy dispersive X-ray spectroscopy (EDX). Our results show that the tubular materials are well crystallized tubes with an average diameter of about 9 nm and little dispersion, and are composed of mainly titanium and oxygen. The atomic ratio of O/Ti is found, however, to vary from tube to tube. Detailed electron and x-ray diffraction studies show that the structure of our titanium oxide nanotubes do not agree with those made of TiO2 crystals with either anatase or rutile phase. HRTEM observations revealed that the titanium oxide nanotubes usually have multiple shells, in analogy with multiwalled carbon nanotubes, but the shell spacin...read more
Citations
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Journal ArticleDOI
Formation mechanism of TiO2 nanotubes
TL;DR: In this paper, it was shown that single-layer TiO2 sheets were formed by rolling up the single layer sheets with a rolling-up vector of [001] and attracting other sheets to surround the tubes.
Journal ArticleDOI
Titanium oxide nanotubes, nanofibers and nanowires
Zhong-Yong Yuan,Bao-Lian Su +1 more
TL;DR: A simple one-step hydrothermal reaction among TiO2 powders and alkaline solution has been developed to synthesize low-dimensional titanate nanostructures.
Journal ArticleDOI
Structural Features of Nanotubes Synthesized from NaOH Treatment on TiO2 with Different Post-Treatments
Chien Cheng Tsai,Hsisheng Teng +1 more
TL;DR: In this article, a divalent salt titanate (Na2Ti2O5·H2O) with a layered structure was identified as the structure formed after the NaOH treatment, and the layered titaniate transformed into a nanotube through Na+−H+ substitution, and eventually transformed into anatase TiO2.
Journal ArticleDOI
Study on composition, structure and formation process of nanotube Na2Ti2O4(OH)2
Jianjun Yang,Zhensheng Jin,Xiaodong Wang,Wei Li,Jingwei Zhang,Shunli Zhang,Xinyong Guo,Zhijun Zhang +7 more
TL;DR: In this article, a nanotube material is obtained by the reaction of polycrystalline TiO2 with concentrated NaOH solution for 20 h at 110 °C, where the contents of Na, Ti and the structural water determined, it is concluded that the nanotubes material is Na2Ti2O4(OH)2, rather than TiO 2, TiOx or H2TiO3.
Journal ArticleDOI
Review of titania nanotubes synthesized via the hydrothermal treatment: Fabrication, modification, and application
Hsin-Hung Ou,Shang-Lien Lo +1 more
TL;DR: A comprehensive list of literatures on characterizations, formation mechanism, and applications of titania nanotubes was compiled and reviewed in this paper, showing that the dependence of TNT attributes on the synthesis conditions and on the post-treatments significantly dominates the feasibility of applications.
References
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Journal ArticleDOI
Room-temperature transistor based on a single carbon nanotube
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TL;DR: In this paper, an introductory textbook for graduate students and researchers from various fields of science who wish to learn about carbon nanotubes is presented, focusing on the basic principles behind the physical properties and giving the background necessary to understand the recent developments.
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TL;DR: In this paper, the authors present a detailed overview of the properties of Fullerenes and their properties in surface science applications, such as scanning tunnel microscopy, growth and fragmentation studies, and chemical synthesis.
Journal ArticleDOI
Boron Nitride Nanotubes
Nasreen G. Chopra,R. J. Luyken,K. Cherrey,Vincent H. Crespi,Marvin L. Cohen,Steven G. Louie,Alex Zettl +6 more
TL;DR: Electron energy-loss spectroscopy on individual tubes yielded B:N ratios of approximately 1, which is consistent with theoretical predictions of stable BN tube structures.