2009

Super Bulk Production of Single-Walled Carbon Nanotubes

Japan Industrial Technology Association

Highly pure, single-walled carbon nanotubes (SWNTs) are mass-produced in bulk forms such as vertically aligned “forests” through a process called Super CVD, a supercharged chemical vapor deposition (CVD) process. Structures of carbon SWNT are patterned and their growth controlled using specialized methods and furnaces.

With the process, controllable growth is exponential, including controls for the length of the nanotubes, plus patterning to fit a specific need. This can result in a “forest” of vertically aligned SWNTs with a purity to 99.98%, a 2,000-fold improvement over traditional CVD rates. This method of using water as a catalyst increases production 1,000-fold, reducing production costs. Attributes of single-walled nano - tubes compare favorably to multi-walled nanotubes. For instance, they are stronger, more bendable, more flexible, have higher optical transmittance, and a larger specific surface area.

Get the complete report on this technology at:
www.techbriefs.com/tow/200912b.html
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.
Phone: 781-972-0600

White Papers

Full RF Signal Chains from 0 Hz to 110 GHz
Sponsored by Avnet
How To Make Pressure Switches That Last
Sponsored by Sigma-netics
Multi-channel, Multi-board Coherency for SWaP-Constrained SIGINT and EW
Sponsored by Curtiss Wright
HAIs and Chemical Resistance
Sponsored by Eastman
Nonlinear Model Predictive Control
Sponsored by Maplesoft
The Less is More Approach to Robotic Cable Management
Sponsored by Igus

White Papers Sponsored By:

The U.S. Government does not endorse any commercial product, process, or activity identified on this web site.