Results 221 to 230 of about 15,375 (258)

Purification of Single-Walled Boron Nitride Nanotubes and Boron Nitride Cages

Journal of Nanoscience and Nanotechnology, 2007
Continuous laser vaporization of a BN target under N2 atmosphere is up to now the unique route to single-walled boron nitride nanotubes (BN-SWNTs). Although grams of product can be obtained by this technique, the raw material contains in addition to the BN-SWNTs, different by-products made of boron and nitrogen.
A, Maguer, R, Arenal, P, Jaffrennou, J L, Cochon, L, Bresson, E, Doris, C, Mioskowski, A, Loiseau   +7 more
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Mechanosynthesis of Boron Nitride Nanotubes

Chinese Journal of Chemical Engineering, 2006
Abstract Boron nitride nanotubes (BN-NTs) with pure hexagonal BN phase have been synthesized by heating ball-milled boron powders in flowing ammonia gas at a temperature of 1200°C. The as-synthesized products were characterized by X-ray powder diffraction, transmission electron microscopy, high-resolution transmission electron microscopy, and ...
Fengqiu JI, Chuanbao CAO, Hong XU, Ziguang YANG   +3 more
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Structure of boron nitride nanotubes

Crystallography Reports, 2015
The crystallographic structure of boron nitride nanotubes has been investigated. Various defects that may arise during nanotube synthesis are revealed by electron microscopy. Nanotubes with different numbers of walls and different diameters are modeled by molecular dynamics methods. Structural features of single-wall nanotubes are demonstrated.
Yu. S. Buranova, B. A. Kulnitskiy, I. A. Perezhogin, V. D. Blank   +3 more
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Functional boron nitride nanotubes

2010 3rd International Nanoelectronics Conference (INEC), 2010
we describe synthesis, property investigations and composite applications of multi-walled boron nitride nanotubes.
Dmitri Golberg, Yoshio Bando, Chengchun Tang, Chunyi Zhi   +3 more
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Boron nitride nanotubes and nanowires

Chemical Physics Letters, 2002
Simple methods of preparing boron nitride nanotubes and nanowires have been investigated. The methods involve heating boric acid with activated carbon, multi-walled carbon nanotubes, catalytic iron particles or a mixture of activated carbon and iron particles, in the presence of NH 3 . While with activated carbon, boron nitride nanowires constitute the
Deepak, FL, Vinod, CP, Mukhopadhyay, K, Govindaraj, A, Rao, CNR   +4 more
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The physics of boron nitride nanotubes

Physics Today, 2010
As synthesis techniques mature, BN nanotubes are likely to be increasingly valuable in fundamental physics studies and find application in a variety of forms—from dyeable, neutron-absorbing fabrics to high-temperature catalysts and photovoltaic devices.
Marvin L. Cohen, Alex Zettl
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Engineering Boron Vacancy Defects in Boron Nitride Nanotubes

ACS Applied Materials & Interfaces
Spin defects in hexagonal boron nitride (hBN) are emerging as promising platforms for quantum sensing applications. In particular, the negatively charged boron vacancy (VB-) centers have been engineered in bulk hBN and few-layer hBN flakes, and employed for sensing.
Madeline Hennessey, Benjamin Whitefield, Priya Singh, Hossein Alijani, Hiroshi Abe, Takeshi Ohshima, Christopher Gavin, David A. Broadway, Milos Toth, Jean-Philippe Tetienne, Igor Aharonovich, Mehran Kianinia   +11 more
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A reduction–nitridation route to boron nitride nanotubes

Applied Physics A, 2005
Multiwalled boron nitride nanotubes were synthesized through a simple reduction–nitridation route, in which boron trifluoride etherate ((C2H5)2OBF3) and sodium azide (NaN3) were used as reactants in the presence of Fe-Ni powder at 600 °C for 12 h. The obtained BN nanotubes have an average outer diameter of 60 nm, an average inner diameter of 30 nm, and
X. Chen, X. Wang, J. Liu, Z. Wang, Y. Qian   +4 more
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Properties of Boron Nitride Nanotubes

AIP Conference Proceedings, 2003
We examine properties of boron nitride nanotubes and contrast them to those of carbon nanotubes. Boron nitride nanotubes are expected to be as desirable for application as carbon nanotubes. Although boron nitride nanotubes are wide band gap semiconductors and electrically nearly insulating, scanning tunneling microscopy can be used to image and ...
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Boron Nitride Nanotube Peapods

AIP Conference Proceedings, 2002
We demonstrate that boron nitride (BN) nanotubes can be filled “peapod” fashion with C60 molecules. Filling small‐diameter BN nanotubes results in a linear chain of C60 molecules in the interior, while filling large diameter BN nanotubes leads to nanorods of crystalline C60 in the interior.
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