Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
溶媒和を容易にするための単層カーボンナノチューブの化学的誘導体化及び誘導体化ナノチューブの使用
Document Type and Number:
Japanese Patent JP4746183
Kind Code:
B2
Abstract:
This invention is directed to making chemical derivatives of carbon nanotubes and to uses for the derivatized nanotubes, including making arrays as a basis for synthesis of carbon fibers. In one embodiment, this invention also provides a method for preparing single wall carbon nanotubes having substituents attached to the side wall of the nanotube by reacting single wall carbon nanotubes with fluorine gas and recovering fluorine derivatized carbon nanotubes, then reacting fluorine derivatized carbon nanotubes with a nucleophile. Some of the fluorine substituents are replaced by nucleophilic substitution. If desired, the remaining fluorine can be completely or partially eliminated to produce single wall carbon nanotubes having substituents attached to the side wall of the nanotube. The substituents will, of course, be dependent on the nucleophile, and preferred nucleophiles include alkyl lithium species such as methyl lithium. Alternatively, fluorine may be fully or partially removed from fluorine derivatized carbon nanotubes by reacting the fluorine derivatized carbon nanotubes with various amounts of hydrazine, substituted hydrazine or alkyl amine. The present invention also provides seed materials for growth of single wall carbon nanotubes comprising a plurality of single wall carbon nanotubes or short tubular molecules having a catalyst precursor moiety covalently bound or physisorbed on the outer surface of the sidewall to provide the optimum metal cluster size under conditions that result in migration of the metal moiety to the tube end.

Inventors:
John Elle, Margrave
Mickelson, Edward Tea
Hague, robert
Ball, peter
Huffman, Chad Bee
Riu, Gee
Smalley, Richard Yee
Smith, ken
Colbert, Daniel Tea
Application Number:
JP2000574020A
Publication Date:
August 10, 2011
Filing Date:
September 17, 1999
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
WILLIAM MARSH RICE UNIVERSITY
International Classes:
C01B31/02; B01J21/18; B01J23/74; B01J35/06; C01B31/00; C07C1/32; C07C13/64; C07C17/007; C07C23/46; D01F11/12; B01J23/755
Domestic Patent References:
JP9289019A
JP10125321A
JP2002503204A
JP6322615A
Other References:
A. HAMWI et al.,FLUORINATION OF CARBON NANOTUBES,Carbon,Elsevier Science Ltd,1997年,Vol.35, No.6,pp.723-728
T. NAKAJIMA et al.,Synthesis and characterization of fluorinated carbon nanotube,European Journal of Solid State and Inorganic Chemistry,1996年,Vol.33, No.9,pp.831-840
笠松真治他,カーボンナノチューブのフッ素化物合成とそのTEM観察,第21回炭素材料学会年会要旨集,日本,炭素材料学会,1994年12月 7日,pp.238-239
Attorney, Agent or Firm:
Kazuo Shamoto
Shosuke Imai
Tadashi Masui
Yasushi Kobayashi
Hiroyuki Tomita
Tatsuo Tomizu