Nec Corporation

Fuchita Nanotechnology Ltd.

Daisuke Kasuya

Sumio Iijima

Yoshimi Kubo

Masako Yudasaka

Tsutomu Yoshitake

Takeshi Azami

Eiji Fuchita

An apparatus for manufacturing carbon nanohorns includes a production chamber configured to irradiate a solid carbon material with a laser beam to produce a product containing carbon nanohorns; and a separation mechanism configured to separate the product produced in the production chamber into a lightweight component and a heavyweight component. The heavyweight component includes carbon nanohorn aggregate with high purity, and high-purity carbon nanotubes can be obtained by collecting the heavyweight component.

Apparatus and method for manufacturing carbon nanohorns

A plume () is generated by irradiating a side face of a graphite rod () with a laser beam () to vaporize carbon. The vaporized carbon is introduced to a carbon nanohorn recovery chamber () through a recovery pipe (), and the vaporized carbon is recovered as a carbon nanohorn assembly (). A cooling tank () including liquid nitrogen () is arranged in the recovery pipe (). While the cooling tank () controls the plume () at a low temperature, the cooling tank () cools the carbon vapor when the carbon vapor passes through the recovery pipe (). The cooled carbon vapor is recovered as the carbon nanohorn assembly () which is controlled in the desired shape and dimensions.

Carbon nanohorn producing device and carbon nanohorn producing method

Growing community of inventors

Tokyo, Japan

Daisuke Kasuya