Results 261 to 270 of about 35,372 (308)

Junctions between a boron nitride nanotube and a boron nitride sheet

Nanotechnology, 2008
For future nanoelectromechanical signalling devices, it is vital to understand how to connect various nanostructures. Since boron nitride nanostructures are believed to be good electronic materials, in this paper we elucidate the classification of defect geometries for combining boron nitride structures.
Baowan, D., Cox, B., Hill, J.
openaire   +3 more sources

Determination of boron and nitrogen in boron nitride

Talanta, 1971
Improved techniques are described for the determination of boron and nitrogen in pure boron nitride. Controlled fusion of boron nitride with sodium carbonate in a muffle furnace is followed by a potentiometric titration of the boric acid. A special quartz vessel is described for the determination of nitrogen.
S L, Erickson, F J, Conrad
openaire   +2 more sources

Interlayer shear of nanomaterials: Graphene–graphene, boron nitride–boron nitride and graphene–boron nitride

Acta Mechanica Solida Sinica, 2017
In this paper, the interlayer sliding between graphene and boron nitride (h-BN) is studied by molecular dynamics simulations. The interlayer shear force between h-BN/h-BN is found to be six times higher than that of graphene/graphene, while the interlayer shear between graphene/h-BN is approximate to that of graphene/graphene.
Yinfeng Li, Weiwei Zhang, Bill Guo, Dibakar Datta   +3 more
openaire   +1 more source

Boron Nitride Nanotubes and Nanosheets

ACS Nano, 2010
Hexagonal boron nitride (h-BN) is a layered material with a graphite-like structure in which planar networks of BN hexagons are regularly stacked. As the structural analogue of a carbon nanotube (CNT), a BN nanotube (BNNT) was first predicted in 1994; since then, it has become one of the most intriguing non-carbon nanotubes.
Golberg, Dmitri G., Bando, Yoshio, Huang, Yang, Terao, Takeshi, Mitome, Masanori, Tang, Chengchun, Zhi, Chunyi   +6 more
openaire   +5 more sources

Boron nitride catalysis

Science, 2016
Catalysis Propene is one of the highest-volume organic chemicals produced. Propene has mainly been made from naphtha, but changes in the global supply chain are creating shortages. Direct conversion from propane, a component of natural gas, via reaction with oxygen is an attractive alternative, but existing approaches produce a large fraction of ...
openaire   +2 more sources

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
openaire   +2 more sources

Nano boron nitride flatland

Chem. Soc. Rev., 2014
Recent years have witnessed many breakthroughs in research on two-dimensional (2D) nanomaterials, among which is hexagonal boron nitride (h-BN), a layered material with a regular network of BN hexagons. This review provides an insight into the marvellous nano BN flatland, beginning with a concise introduction to BN and its low-dimensional ...
Pakdel, Amir, Bando, Yoshio, Golberg, Dmitri   +2 more
openaire   +3 more sources

Computer simulation and boron nitride

Radiation Effects and Defects in Solids, 1997
Abstract This paper presents computer simulation studies of boron nitride using ab initio and empirical methods. Results of self-consistent DFT-LDA calculations are shown, which were performed to characterize static ground-state properties of the different BN modifications.
Albe, K., Möller, W., Heinig, K.-H.
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Boron Nitride and Silicon Boron Nitride Film and Polish Characterization

Journal of The Electrochemical Society, 1993
A (silicon) boron nitride deposition process based on diborane and ammonia chemistry has been developed. Stable (silicon) boron nitride films have been obtained and the film properties were characterized. The mechanical resistance of boron nitride films against abrasives is utilized for stop layer applications for chemical mechanical polishing.
B. Neureither, C. Basa, T. Sandwick, K. Blumenstock   +3 more
openaire   +1 more source

Synthesis of Boron Nitride Microtubes and Formation of Boron Nitride Nanosheets

Materials and Manufacturing Processes, 2014
Boron nitride microtubes are synthesized in a dual zone quartz tube furnace at 1200°C with ammonia as a reaction atmosphere. Field emission scanning electron microscopy (FE-SEM) results show a unique cone-like morphology of the tubes with larger internal space and thin walls structure. The diameters of the tubes were found to be in the range of 1 to ∼2 
Ahmad, P., Khandaker, Mayeen Uddin, Amin, Yusoff Mohd, Khan, Z.R.   +3 more
openaire   +2 more sources