Journal
JOURNAL OF PHYSICAL CHEMISTRY B
Volume 106, Issue 19, Pages 4947-4951Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp020387n
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Single-wall carbon nanohorn (SWNH) aggregates can be produced by CO2 laser vaporization of carbon, and a single aggregate can take either a dahlia-like or bud-like form. We found that dahlia-like SWNH aggregates were produced with a yield of 95% when Ar at 760 Torr was used as the buffer gas while bud-like SWNH aggregates were formed with a yield of 70 or 80% when either He or N-2 at 760 Torr was used. The internal structures of both aggregates were studied by partially burning them in an O-2 atmosphere. We were then able to examine the mechanism for the formation of SWNH aggregates.
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