scholarly journals Synthesis, Atomic Structures and Properties of Boron Nitride Nanotubes

10.5772/51968 ◽  
2013 ◽  
Author(s):  
Takeo Oku
Keyword(s):  
Boron Nitride ◽  
Boron Nitride Nanotubes ◽  
Atomic Structures ◽  
Structures And Properties

Atomic structures and stability of boron nitride nanotubes with a cup-stacked structure

2005 ◽  
Vol 14 (3-7) ◽  
pp. 1163-1168 ◽  
Author(s):  
Atsushi Nishiwaki ◽  
Takeo Oku ◽  
Hisato Tokoro ◽  
Shigeo Fujii
Keyword(s):  
Boron Nitride ◽  
Boron Nitride Nanotubes ◽  
Atomic Structures

Formation, atomic structures and properties of boron nitride and carbon nanocage fullerene materials

2001 ◽  
Vol 3 (7) ◽  
pp. 597-612 ◽  
Author(s):  
Takeo Oku ◽  
Masaki Kuno ◽  
Hidehiko Kitahara ◽  
Ichihito Narita
Keyword(s):  
Boron Nitride ◽  
Atomic Structures ◽  
Structures And Properties ◽  
Carbon Nanocage

Boron Nitride Nanotube, Nanocable and Nanocone

2001 ◽  
Vol 706 ◽  
Author(s):  
Dmitri Golberg ◽  
Yoshio Bando ◽  
Laure Bourgeois ◽  
Renzhi Ma ◽  
Kazuhiko Ogawa ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Nitrogen Atmosphere ◽  
Boron Nitride Nanotubes ◽  
X Ray ◽  
Atomic Structures ◽  
Transmission Electron ◽  
Electron Energy Loss Spectrometer ◽  
Line Defects ◽  
Electron Energy Loss ◽  
Bn Nanotubes

AbstractBoron nitride nanotubes, nanocones and nanocables were prepared and their atomic structures were identified by using a 300 kV field emission transmission electron microscope equipped with an electron energy loss spectrometer and energy dispersion X-ray detector. Multiwalled BN nanotubes and nanocones were synthesized by reacting C nanotube templates and boron oxide under nitrogen atmosphere at 1723-2023 K. Additions of metal oxide promoters, e.g. MoO3, CuO, and PbO, significantly improved BN-rich nanotube yield at the expense of B-C-N nanotubes. It was shown that BN nanotubes had preferential “zigzag” chirality and exhibited either hexagonal or rhombohedral stacking between shells. An efficient synthetic route for bulk quantities of BN tube production was also developed, where a B-N-O precursor was used during a CVD process. Nanocones of BN were mostly found to have 240° disclinations which ensure the presence of B-N bonds only. One case was observed of a cone constituted of 300° disclination implying that structures may contain line defects of non B-N bonds. The first synthesis of insulating BN nanocables was carried out, where BN nanotubes were entirely filled with Invar Fe-Ni nanorods. The filled nanotube diameters ranged between 30 to 300 nm, whereas the length of filling reached several microns.

Atomic structures of bamboo-type boron nitride nanotubes with cup-stacked structures

2006 ◽  
Vol 26 (4-5) ◽  
pp. 443-448 ◽  
Author(s):  
Takeo Oku ◽  
Ichihito Narita ◽  
Atsushi Nishiwaki
Keyword(s):  
Boron Nitride ◽  
Boron Nitride Nanotubes ◽  
Atomic Structures

Synthesis, atomic structures and properties of carbon and boron nitride fullerene materials

2000 ◽  
Vol 74 (1-3) ◽  
pp. 206-217 ◽  
Author(s):  
Takeo Oku ◽  
Takanori Hirano ◽  
Masaki Kuno ◽  
Takafumi Kusunose ◽  
Koichi Niihara ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Atomic Structures ◽  
Structures And Properties

scholarly journals Formation and Atomic Structures of Boron Nitride Nanotubes with Cup-Stacked and Fe Nanowire Encapsulated Structures

2007 ◽  
Vol 48 (4) ◽  
pp. 722-729 ◽  
Author(s):  
Takeo Oku ◽  
Naruhiro Koi ◽  
Ichihito Narita ◽  
Katsuaki Suganuma ◽  
Masahiko Nishijima
Keyword(s):  
Boron Nitride ◽  
Boron Nitride Nanotubes ◽  
Atomic Structures ◽  
Encapsulated Structures

Synthesis and atomic structures of boron nitride nanotubes

2002 ◽  
Vol 323 (1-4) ◽  
pp. 357-359 ◽  
Author(s):  
Takeo Oku
Keyword(s):  
Boron Nitride ◽  
Boron Nitride Nanotubes ◽  
Atomic Structures
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