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.
No takes yet. Share an insight, caveat, or question.
Yudasaka et al. (2001) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: