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:
Oct. 16, 2012
Filed:
Aug. 20, 2007
Xinjie Zhang, Waltham, MA (US);
Jun MA, Lexington, MA (US);
Howard Tennent, Kennett Square, PA (US);
Robert Hoch, Hensonville, NY (US);
Xinjie Zhang, Waltham, MA (US);
Jun Ma, Lexington, MA (US);
Howard Tennent, Kennett Square, PA (US);
Robert Hoch, Hensonville, NY (US);
Hyperion Catalysis International, Inc., Cambridge, MA (US);
Abstract
Methods of preparing single walled carbon nanotubes are provided. Carbon containing gas is contacted with a supported metal catalyst under reaction conditions to yield at least 90% single walled carbon nanotubes and at least 1 gram single walled carbon nanotubes/gram metal catalyst. The support material may be calcined at temperatures between 150 and 600° C., and may have at least one oxidized planar surface. Reaction conditions include less than 10 atmospheres pressure and less than 800° C.