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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Effect of large graphene particle size on structure, optical property and photocatalytic activity of graphene-titanate nanotube composites
Vo Cao Minh,Phan Tan Dat,Pham Thi Thuy,Nguyen Xuan Sang,Nguyen Tri Tuan,Tran Thanh Tung,Dusan Losic +6 more
TL;DR: In this paper, the crystal transformation and optical properties of hydrothermal titania nanotube (TNT) when combining with large size of exfoliated graphene achieved by electrochemical process (EC-Gr) were investigated.
Journal ArticleDOI
Study on the Photocatalytic Degradation of Methylene Blue Dye on Titanate Nanotube Powders Prepared by Methanol-Thermal Process
TL;DR: Titanate nanotubes were synthesized by a solvothermal process at a low temperature in a highly alkaline water-methanol mixed solution as discussed by the authors, and the results indicated that the titanate samples are synthesized in the methanol-water volume ratios of 10:90, 20:80 and 30:70.
Journal ArticleDOI
Novel nanostructures: hole-patterned nanowires and nanotubes of silicon oxide
TL;DR: In this paper, high-resolution transmission electron microscopy reveals that the patterned nanowires and nanotubes are amorphous, and the growth of the nanostructures is probably controlled by a modified vapour-liquid liquid solid process.
Journal ArticleDOI
Formation of Mn3O4/C core-shell nanowires and a new Mn-O phase by electron beam irradiation
TL;DR: In this article, the outer shell is composed of amorphous carbon with a thickness of 5-20 nm while the core is a single crystalline Mn3O4, and a new manganese oxide phase is also found by the transformation of Mn 3O4 under the attack of the electron beam.
Journal ArticleDOI
The nanocrystallinity enhancement of sol-gel derived TiO 2 nanoparticles by pre-hydrothermal treatment
TL;DR: In this article, a pre-hydrothermal treatment was carried on the inorganic sols to enhance the nanocrystallinity degree of the resulting TiO2 nanoparticles.
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.