Boron nitride nanotubes: Pronounced resistance to oxidation

被引：816

作者：

Chen, Y ^{[1
]}

Zou, J

Campbell, SJ

Le Caer, G

机构：

[1] Australian Natl Univ, Res Sch Phys Sci & Engn, Dept Elect Mat Engn, Canberra, ACT 0200, Australia

[2] Univ Sydney, Electron Microscopy Unit, Sydney, NSW 2006, Australia

[3] Univ New S Wales, Australian Def Force Acad, Sch Phys Environm & Math Sci, Canberra, ACT 2600, Australia

[4] Univ Rennes 1, GMCM UMR CNRS 6626, F-35042 Rennes, France

来源：

APPLIED PHYSICS LETTERS | 2004年 / 84卷 / 13期

关键词：

D O I：

10.1063/1.1667278

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Boron nitride (BN) nanotubes have the same nanostructure as carbon nanotubes but are found to exhibit significant resistance to oxidation at high temperatures. Our systematic study has revealed that BN,nanotubes are stable at 700degreesC in air and that some,thin nanotubes (diameter less than 20 nm) with perfect multiwalled cylindrical structure can survive up to 900degreesC. Thermogravimetric analysis reveals an onset temperature for oxidation of BN nanotubes of 800degreesC compared with only 400degreesC for carbon nanotubes under the same. conditions. This more pronounced resistance of BN nanotubes to oxidation is inherited from the hexagonal BN and also depends on the nanocrystalline structure. This high level of resistance to oxidation allows promising BN nanotube applications at high temperatures. (C) 2004 American Institute of Physics.

引用

页码：2430 / 2432

页数：3

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