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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A study on the effect of starting material phase on the production of trititanate nanotubes
TL;DR: In this article, mixed phase TiO2 powders of different composition and particle size were subjected to the hydrothermal reaction with 10m NaOH and found that the anatase phase component of the starting material is easily converted to trititanate nanotubes at 140°C.
Journal ArticleDOI
Confined synthesis of ultrafine Ru–B amorphous alloy and its catalytic behavior toward selective hydrogenation of benzene
TL;DR: In this article, uniform and ultrafine Ru-B amorphous alloy nanoparticles (NPs) supported on titanate nanosheets were fabricated via a confined synthesis in Titanate nanotubes (TNTs) followed by unwrapping the tube to sheetlike titanate (TNS), which exhibit excellent catalytic performance toward the selective hydrogenation of benzene to cyclohexene (yieldcyclohexenes: 50.7%) without any additives.
Journal ArticleDOI
Simple hydrothermal preparation of nanofibers from a natural ilmenite mineral
Athapon Simpraditpan,Thanakorn Wirunmongkol,Sorapong Pavasupree,Wisanu Pecharapa,Wisanu Pecharapa +4 more
TL;DR: In this paper, a simple hydrothermal method using a natural ilmenite mineral as the starting material was used to synthesize titanate nanofibers, which demonstrated a layered titanate form, H 2 Ti x O 2 + 1.
Journal ArticleDOI
Factors that Contribute to the Growth of Ag@TiO2 Nanofibers by Plasma Deposition
Ana Borras,Angel Barranco,Juan P. Espinós,Juan P. Espinós,José Cotrino,José Cotrino,Juan P. Holgado,Agustín R. González-Elipe +7 more
TL;DR: In this article, a model experiment on the plasma deposition of TiO 2 on silver is described which can help to identify the factors that control the formation of supported Ag@TiO 2 nanofibers during plasma deposition at T>130°C.
Journal ArticleDOI
Study on photocatalysis of TiO 2 nanotubes prepared by methanol-thermal synthesis at low temperature
TL;DR: In this paper, the authors synthesize TiO2 nanotubes by the solvothermal process at low temperature in a highly alkaline water-methanol mixed solution, and the as-prepared samples were tested by the photodegradation reaction of methylene blue (MB) dye under visible-light irradiation.
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.