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
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Effects of calcination temperature on the microstructures and photocatalytic activity of titanate nanotubes
TL;DR: In this paper, the photocatalytic activity of as-prepared titanate nanotubes was evaluated by photocatalysis oxidation of acetone in air, and the effects of calcination temperature on the phase structure, crystallite size, morphology, specific surface area and pore structures of the titanate nano-blocks were investigated.
Journal ArticleDOI
Nanotubes of lepidocrocite titanates
TL;DR: In this paper, it was suggested that the nanotubes might be constructed from lepidocrocite H x Ti 2− x/4 □ x /4 O 4 (x ∼ 0.7, □: vacancy) sheets.
Journal ArticleDOI
Adsorption behavior of methylene blue onto titanate nanotubes.
Lin Xiong,Lin Xiong,Ye Yang,Jiaxing Mai,Jiaxing Mai,Weiling Sun,Weiling Sun,Chaoying Zhang,Dapeng Wei,Qing Chen,Jinren Ni,Jinren Ni +11 more
TL;DR: In this paper, the adsorption of methylene blue onto calcined titanate nanotubes was studied, and the results were evaluated by the pseudo-first-order, pseudo-second-order and Weber's intraparticle diffusion model.
Journal ArticleDOI
Hydrothermal Synthesis of Single-Crystalline Anatase TiO2 Nanorods with Nanotubes as the Precursor
Jun-Nan Nian,Hsisheng Teng +1 more
TL;DR: The present work has found that hydrothermal treatment of titanate nanotube suspensions under an acidic environment resulted in the formation of single-crystalline anatase nanorods with a specific crystal-elongation direction.
Journal ArticleDOI
Titanate Nanotubes and Nanorods Prepared from Rutile Powder
Ying Lan,Xueping Gao,Huaiyong Zhu,Zhanfeng Zheng,Tianying Yan,Feng Wu,Simon P. Ringer,D. Y. Song +7 more
TL;DR: In this article, a template-free control of the degree of crystallinity, crystal structure, and morphology of these types of nanoscale sodium titanate products is presented, and the performance of the dehydrated hydrogen titanate nanotubes and nanorods is explored in terms of their potential performance as anode materials for lithium-ion batteries.
References
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Journal ArticleDOI
Helical microtubules of graphitic carbon
TL;DR: Iijima et al. as mentioned in this paper reported the preparation of a new type of finite carbon structure consisting of needle-like tubes, which were produced using an arc-discharge evaporation method similar to that used for fullerene synthesis.
Journal ArticleDOI
Room-temperature transistor based on a single carbon nanotube
TL;DR: In this paper, the fabrication of a three-terminal switching device at the level of a single molecule represents an important step towards molecular electronics and has attracted much interest, particularly because it could lead to new miniaturization strategies in the electronics and computer industry.
Book
Physical properties of carbon nanotubes
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.
Book
Science of fullerenes and carbon nanotubes
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.