Journal
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS
Volume 43, Issue 12, Pages 8365-8368Publisher
INST PURE APPLIED PHYSICS
DOI: 10.1143/JJAP.43.8365
Keywords
SWNTs; AC arc discharge; H-2 gas; Fe catalyst; in situ purification
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Single-walled carbon nanotubes (SWNTs) were synthesized in a mixed gas of H-2 and Ar by AC arc discharge. The catalyst used in the synthesis was a single Fe catalyst. SWNTs containing a negligible number of nanoparticles were obtained. A novel purification method, in which synthesized soot is heated and oxidized in situ, was adopted. As a result, high-quality SWNTs with excellent crystallinity containing very few coexisting nanoparticles and fine particles from the catalyst were obtained.
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