Abstract
We report a new class of nanostructured carbon materials, which couple nanosized diamond with single-walled carbon nanotubes. This exciting material is being produced in our laboratories in a modified CVD reactor by means of reactions between carbon nanopowders and atomic H. Field-emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), Raman spectroscopy, and reflection high-energy electron diffraction (RHEED) have been used to study samples grown for various deposition times. The information achieved by combined use of these characterization techniques has enabled the construction of a time-growth sequence for the two carbon nanophases and has enlightened the peculiar growth of such hybrid carbon systems. The tubular inner structures are found to be bundles of single-walled carbon nanotubes (SWNT) up to 15 μm long, and the outer deposits consist of well-shaped diamond crystallites with diameters in the 20−100 nm range. The one-step synthesis approach described here provides an experimental route to the production of ordered arrays of rigid nanotubes coated by diamond nanocrystallites.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.