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Preparation of array of long carbon nanotubes and fibers therefrom

United States Patent

November 10, 2015
View the Complete Patent at the US Patent & Trademark Office
Los Alamos National Laboratory - Visit the Technology Transfer Division Website
An array of carbon nanotubes is prepared by exposing a catalyst structure to a carbon nanotube precursor. Embodiment catalyst structures include one or more trenches, channels, or a combination of trenches and channels. A system for preparing the array includes a heated surface for heating the catalyst structure and a cooling portion that cools gas above the catalyst structure. The system heats the catalyst structure so that the interaction between the precursor and the catalyst structure results in the formation of an array of carbon nanotubes on the catalyst structure, and cools the gas near the catalyst structure and also cools any carbon nanotubes that form on the catalyst structure to prevent or at least minimize the formation of amorphous carbon. Arrays thus formed may be used for spinning fibers of carbon nanotubes.
Arendt; Paul N. (Los Alamos, NM), DePaula; Ramond F. (Santa Fe, NM), Zhu; Yuntian T. (Cary, NC), Usov; Igor O. (Los Alamos, NM)
Los Alamos National Security, LLC (Los Alamos, NM)
12/ 002,087
December 13, 2007
STATEMENT REGARDING FEDERAL RIGHTS This invention was made with government support under Contract No. DE-AC52-06NA25396 awarded by the U.S. Department of Energy awarded by the U.S. Department of Energy. The government has certain rights in the invention.