Journal ArticleDOI
Preparation and structure analysis of titanium oxide nanotubes
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TLDR
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
Nonlinear Optical Behavior of Transparent Nanohybrids of Nanocrystalline TiO2 in Poly(methyl methacrylate) Prepared by In Situ Sol-Gel Polymerization Technique
TL;DR: In this article, nanohybrid thin films consisting of nanocrystalline TiO2 particles in poly(methyl methacrylate)(PMMA) were successfully synthesized by in-situ sol-gel and polymerization assisted by spin coating.
Journal ArticleDOI
Nanocapillarity-induced elasticity in nanotubular structures
Dong-Uk Kim,Pil-Ryung Cha +1 more
TL;DR: In this paper, the authors present analytic solutions for nanocapillarity-induced elasticity in one-dimensional nanotubular structures and show that the total elastic energy stored in the nanotubes was a function of the surface stress, the ratio of the inner radius to the outer radius, and the elastic constants.
Patent
Rohrförmige titanoxidteilchen, herstellungsverfahren dafür und verwendung davon
Tsuguo Koyanagi,Katsuhiro Catalysts Chem. Ind. Co. Ltd Shirono,Atsushi Catalysts Chem. Ind. Co. Ltd. Tanaka,Michio Catalysts Chem. Ind. Co. Ltd. Komatsu +3 more
DissertationDOI
Dual phase titanate/titania photocatalyst for degradation of organic pollutants under visible light
TL;DR: In this article, a dual phase mixture of nanoscaled titanate and titania (anatase) was determined to be a mixture of theoretical and experimental techniques, the complete structure solution was achieved and the dual phase structure was confirmed by xray diffraction and high resolution transmission electron microscopy.
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.