Multi-wall carbon nanotubes(MWNT) were preparaed by floating catalytic pyrolysis method,using liquid paraffin as the carbon source,ferrocene as the precursor of catalyst and dimethyl sulfoxide as the growth accelerant.

Byproducts of floating catalyst method for preparing carbon nanotubes;

The synthesis of single-walled carbon nanotubes(SWNTs)by floating catalyst method,using phos- phorus as promoter,was investigated.

Carbon nanotubes with good quality were prepared continuously in a vertical reactor by floating catalyst method, in which the catalyst precursor was directly carried into the reactor by a gas flow, thus avoiding the tedious step of catalyst preparation.

Optimization for preparation of carbon nanotubes by floating catalyst method;

High-quality multiwalled carbon nanotubes prepared by the floating catalytic pyrolysis;

Arc-discharge and catalytic decomposition methods were used to produce carbon nanotubules.

The continuous synthesis was realized by controling parameters using floating catalyst method.

The carbon micro/nano-materials with different morphologies are synthesized in a single horizontal high-temperature resistance furnace by floating catalyst method with a reaction system using ethanol as the carbon source,through varying the experimental factors such as the types of the catalysts,the kinds and flow rates of the reaction gases and additives.