Diameter Enlargement of HiPco Single-Wall Carbon Nanotubes by Heat Treatment | Zendy

Masako Yudasaka | Zendy; Hiromichi Kataura | Zendy; T. Ichihashi | Zendy; LuChang Qin | Zendy; S. Kar | Zendy; Sumio Iijima | Zendy

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Diameter Enlargement of HiPco Single-Wall Carbon Nanotubes by Heat Treatment

Author(s) -

Masako Yudasaka,

Hiromichi Kataura,

T. Ichihashi,

LuChang Qin,

S. Kar,

Sumio Iijima

Publication year - 2001

Publication title -

nano letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 4.853

H-Index - 488

eISSN - 1530-6992

pISSN - 1530-6984

DOI - 10.1021/nl010037x

Subject(s) - thermogravimetric analysis , raman spectroscopy , carbon nanotube , materials science , carbon fibers , analytical chemistry (journal) , chemical engineering , nuclear chemistry , nanotechnology , chemistry , composite material , organic chemistry , optics , engineering , composite number , physics

The diameters of HiPco single-wall carbon nanotubes were increased by heat treatments. The original diameters estimated from Raman spectra were in the range of 0.79 to 1.2 nm; they increased with the heat-treatment temperature, reaching about 1.47 nm after 1800 °C heat treatment. Thermogravimetric analyses showed that the burning temperature of the HiPco tubes rose by about 350 °C after 1800 °C heat treatment, and the metal content, which was about 30% in the original HiPco, decreased to about 2% after heat treatment at 1800 °C.

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