Boron nitride nanotube

C. Zhi, Y. Bando, T. Terao, C. Tang, H. Kuwahara, D. Golberg, Towards thermoconductive, electrically insulating polymeric composites with boron nitride nanotubes as fillers, Adv. Fund. Mater, vol. 19, p. 1857-1862, 2009. 

Its structure resembles that of graphite, but the latter s flat planes of carbon hexagons are replaced in boron nitride by planes of hexagons of alternating B and N atoms (Fig. 14.31). Unlike graphite, it is white and does not conduct electricity. Under high pressure, boron nitride is converted to a very hard, diamondlike crystalline form called Borazon. In recent years, boron nitride nanotubes similar to those formed by carbon have been synthesized (Section 14.18), and they have been found to be semiconducting (see Box 14.2). 

ATOMIC HYDROGEN ADSORPTION ON BORON NITRIDE NANOTUBE SURFACES... 

Keywords adsorption, boron nitride nanotubes, semi-empirical models and model calculations... 

Jhi, S.-H. and Kwon, Y.-K. (2004) Hydrogen adsorption on boron nitride nanotubes A path to room-temperature hydrogen storage, Phys. Rev. B 69(24), 245407/1-245407/10. 

Bando and co-workers271 have prepared BN nanolubes by the reaction of MgO, FeO and B in the presence of NH, at 1400 °C. Reaction of boric acid or B20, with N2 or NH, at high temperatures in the presence of carbon or catalytic metal particles has been employed in the preparation of BN nanotubes.2 2 Boron nitride nanotubes can be grown directly on substrates at 873 K by a plasma-enhanced laser-deposition technique.172 Recently, GaN nanotube brushes have been prepared using amorphous carbon nanotubes templates obtained using AAO membranes.274... 

Wu, X., Yang, J., Hou, J.G. and Zhu, Q. (2004) Deformation-induced site selectivity for hydrogen adsorption on boron nitride nanotubes, Phys. Rev. B... 

X. Wu, J.L. Yang and X.C. Zeng, Adsorption of hydrogen molecules on the platinum-doped boron nitride nanotubes , The Journal of Chemical Physics, 125, 044704... 

Boron nitride nanotubes have been obtained by striking an electric arc between HfB, electrodes in a N2 atmosphere" BCN and BC nanotubes are obtained by arcing between B/C electrodes in an appropriate atmosphere A greater effort has gone into the synthesis of BN nanotubes starting with different precursor molecules containing B and N. Decomposition of borazine in the presence of transition metal nanoparticles and the decomposition of the I 2 melamine-boric acid addition compound yield BN nanotubes. Reaction of boric acid or B2O, with N2 or NH, at high temperature in the presence of activated carbon, carbon nanotubes or catalytic metal particles has been employed to synthesize BN nanotubes. ... 

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