Single-wall carbon nanotubes from coal
نویسندگان
چکیده
Ž . We demonstrate that single-wall carbon nanotubes SWNT can be produced by an arc-discharge method using a catalyzed coal carbon source. Characterization by resonant Raman scattering and electron microscopy confirm that this material contains SWNT with properties similar to graphite-derived SWNT. ‘Web-like’ material from our growth process has an estimated yield of 45 wt.% of carbon as SWNT, while the average chamber yield is approximately 20 wt.% C, as determined by FT-Raman and HRSEM measurements. q 1999 Elsevier Science B.V. All rights reserved.
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