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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Journal ArticleDOI
Synthesis and characterization of K2Ti6O13 nanowires
TL;DR: K2Ti6O13 nanowires with an average diameter of about 10 nm were synthesized by a simple hydrothermal reaction between Na2Ti3O7 and KOH as discussed by the authors.
Journal ArticleDOI
Natural rutile-derived titanate nanofibers prepared by direct hydrothermal processing
TL;DR: In this paper, the as-synthesized fibers are defective and can be cured by a post-heat treatment in air, which can act not only as a reaction step but also as a purification step.
Journal ArticleDOI
Mesoporous nanotube aggregates obtained from hydrothermally treating TiO2 with NaOH
TL;DR: In this article, Nanotube aggregates with high porosity were prepared from hydrothermal treatment of TiO2 particles in NaOH at 130°C, followed by HCl rinsing to different pH values.
Journal ArticleDOI
Chemical functionalisation of titania nanotubes and their utilisation for the fabrication of reinforced polystyrene composites
Michele T. Byrne,Joseph E. McCarthy,Mathew Bent,Rowan Blake,Yurii K. Gun'ko,Endre Horváth,Zoltán Kónya,Ákos Kukovecz,Imre Kiricsi,Jonathan N. Coleman +9 more
TL;DR: Titania nanotubes have been functionalised using allyltriethoxysilane and propyltriethyltrihexilane as discussed by the authors, which has shown an increase in Young's modulus and up to 30% increase in tensile strength at extremely low nanotube loading levels.
Journal ArticleDOI
Understanding Hydrothermal Titanate Nanoribbon Formation
TL;DR: In this article, a Titanate nanoribbons were prepared by hydrothermal treatment of neat TiO2 P25 with 10 M NaOH at 200 °C and acid washing served to exchange the Na+ with H+ to give H2Ti3O7.
References
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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.