Mass Production of Carbon Nanotubes by Arc Discharge Evaporation.

Production of Carbon Nanotubes and Carbon Nanoclusters by the JxB Arc-Jet Discharge Method

Effects of Gravity and Magnetic Field on Production of Single-Walled Carbon Nanotubes by Arc-Discharge Method

Characterization of carbon nanotubes produced by arc discharge: Effect of the background pressure

Single walled carbon nanotubes ~SWNT! produced by the anodic arc discharge over a range of constant background pressures of helium ~100–1000 Torr! were examined under a high-resolution transmission electron microscope, and a Raman spectrometer. It was found that the average SWNT diameter is about 2 nm and fairly independent of the background pressure. Analysis of the relative purity of SWNTs sa...

Synthesis of Y-junction Carbon Nanotubes from Graphite Composites by Arc-discharge

Y-junction carbon nanotubes were synthesized by arc discharge method from composite anode made of graphite powder, coal tar and alloy catalysts consisting of Fe, Ni, Co and S element. The synthesis of Y-junction carbon nanotubes was carried out in a mixture gas of 200 Torr Ar and 100 Torr H2. The as-synthesized Y-junction carbon nanotubes were examined by scanning electron microscopy (SEM), tra...

High-yield synthesis of single-walled carbon nanotubes by gravity-free arc discharge

Single-walled carbon nanotubes ~SWNTs! have been produced in high yield by the dc arc discharge technique under gravity-free conditions. Gravity-free conditions can reduce the convection flow of the buffer gas during the arc discharge, which results in the increase of high thermostatic volume around the arc flame. The yields of both the total soot and SWNTs in soot are significantly increased. ...