Results 221 to 230 of about 15,200 (256)

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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Amine-functionalized boron nitride nanotubes

Solid State Communications, 2007
The surface of boron nitride nanotubes (BNNTs) has been functionalized with amine groups via ammonia plasma irradiation. The functionalized tubes were characterized by Fourier transform infrared spectroscopy and electron energy loss spectroscopy. Amine-functionalized BNNTs were found to be highly dispersible in chloroform, and are predicted to form the
T. Ikuno, T. Sainsbury, D. Okawa, J.M.J. Fréchet, A. Zettl   +4 more
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Boron nitride nanotube branched nanojunctions

Nanotechnology, 2007
One-dimensional boron nitride (BN) nanotube nanojunctions are of great interest for both fundamental and applied research because of their stable and excellent mechanical and physical properties. Large quantities of highly pure BN nanotube multiple Y- and/or T-junctions were synthesized by annealing pure boron nanowire precursors in N-2 atmosphere at ...
L M Cao, X Y Zhang, H Tian, Z Zhang, W K Wang   +4 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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Boron-nitride nanotube triggered self-assembly of hexagonal boron-nitride nanostructure

Physical Chemistry Chemical Physics, 2014
Molecular mechanics results show that a hexagonal boron nitride (h-BN) membrane can spontaneously assemble on the single-walled boron nitride nanotube (BNNT) in a scroll or helical manner, showing an interesting dependence on h-BN width.
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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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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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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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Metal-Filled Boron Nitride Nanotubes

AIP Conference Proceedings, 2002
We present the results on filling multi‐walled BN nanotubes with 3d‐transition metal nanorods. The nanorods made of either Fe‐Ni Invar alloy (Fe∼60 at.%; Ni∼40 at.%) or pure Co were embedded into nanotubular channels via a two‐stage process: first, C nanotubes containing Fe‐Ni or Co nanoparticles at the tube‐tips were synthesized by plasma‐assisted ...
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Chemically Activated Boron Nitride Nanotubes

Chemistry – An Asian Journal, 2009
Zhi, Chunyi, Bando, Yoshio, Terao, Takeshi, Tang, Chengchun, Kuwahara, Hiroaki, Golberg, Dmitri   +5 more
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