Square, pentagon, and heptagon rings at BN nanotube tips

Authors
Saito, Y Maida, M
Citation
Y. Saito et M. Maida, Square, pentagon, and heptagon rings at BN nanotube tips, J PHYS CH A, 103(10), 1999, pp. 1291-1293
Citations number
11
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF PHYSICAL CHEMISTRY A
ISSN journal
10895639 → ACNP
Volume
103
Issue
10
Year of publication
1999
Pages
1291 - 1293
Database
ISI
SICI code
1089-5639(19990311)103:10<1291:SPAHRA>2.0.ZU;2-W
Abstract
Nanotubes of hexagonal boron nitride (h-BN) have been synthesized by are di scharge between ZrB2 electrodes in a nitrogen atmosphere. A new morphology of BN nanotubes at their tips, exhibiting a "triangular flag" like shape, w as observed by transmission electron microscopy. This morphology suggests t he presence of energetically unfavorable odd-membered rings (e.g., pentagon s and heptagons) in addition to favorable even-membered rings (e.g., square s).