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Synthesis and structure of BN‐doped multi‐walled and single‐walled carbon nanotubes
Author(s) -
Enouz S.,
Stéphan O.,
Glerup M.,
Cochon J. L.,
Colliex C.,
Loiseau A.
Publication year - 2006
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200669190
Subject(s) - carbon nanotube , materials science , graphene , transmission electron microscopy , nanotechnology , vaporization , graphite , nanometre , doping , high resolution transmission electron microscopy , characterization (materials science) , chemical engineering , composite material , optoelectronics , chemistry , organic chemistry , engineering
We report on the direct synthesis of different kinds of BN–C multi‐walled and single‐walled nanotubes exhibiting a segregation between BN and C domains. Multi‐walled BN–C nanotubes (MW‐BN/C‐NTs) were synthesized using the aerosol method whereas single‐walled BN–C nanotubes (SW‐BN/C‐NTs) have been for the first time produced using a continuous CO 2 ‐laser vaporization process [S. Enouz et al., to be published]. Degrees of purity, homogeneity and yield have been estimated from a systematic inspection of the samples by scanning electron microscopy. Structure of these tubes and spatial distribution of C, B and N as well as their chemical environments have been inspected at the nanometer scale by combining high resolution transmission microscopy and nano‐electron energy loss spectroscopy. These analyses provide clear evidence of new kinds of arrangements of C, B and N within the graphene layer, which are due to the segregation properties of h‐BN and graphite. Thus, combining BN and C elements into nanotubular systems can open the way to a broad range of new nanodevices. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)