The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 20, 2008
Filed:
Mar. 26, 2002
Benoit Simard, Orléans, CA;
Michael Barnett, Ottawa, CA;
Stéphane Dénommée, Carleton Place, CA;
Dean Ruth, Ottawa, CA;
Benoit Simard, Orléans, CA;
Michael Barnett, Ottawa, CA;
Stéphane Dénommée, Carleton Place, CA;
Dean Ruth, Ottawa, CA;
National Research Council of Canada, Ottawa, Ontario, CA;
Abstract
The invention relates to a process for formation of carbon nanotubes. The process comprises laser ablation of a bulk metal catalyst within a hydrocarbon solution to produce a feedstock containing metal catalyst nanoparticles. The feedstock is atomizing to form a feedstock aerosol. The aerosol is heated to form naotubes. An apparatus for forming carbon nanotubes is also disclosed. Nanoparticles formed in the feedstock according to the invention can be controlled to achieve a narrow size distribution, which ultimately allows for good control over size and chirality of the nanotubes formed.