Uncapped and thinned carbon nanotubes and process

Details Uncapped and thinned carbon nanotubes and process Uncapped and thinned carbon nanotubes and process

1993-03-26

1994-09-13

Warden, Robert J.

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

422312, 423460, 423DIG39, 423DIG40, D01F 912

Patent

active

053466837

ABSTRACT:
Uncapped and thinned carbon nanotubes are produced by reaction with a flowing reactant gas capable of reaction selectively with carbon atoms in the capped region of nanotubes. The uncapped and thinned nanotubes provide open compartments for insertion of chemicals and exhibit enhanced surface area with modified physical and chemical properties.

REFERENCES:
patent: 5094906 (1992-03-01), Witzke et al.
Ajayan et al, "Opening carbon nanotubes with oxygen and implications for filling", Nature, vol. 362, Apr. 8, 1993, pp. 522-525.
Tsang et al., "Thinning and opening carbon nanotubes by oxidation using carbon dioxide", Nature, vol. 362, Apr. 8, 1993, pp. 520-522.
S. Iijima, "Helical Microtubules of Graphitic Carbon," Nature, vol. 354, pp. 56-58 (1991).
W. Kratschmer, L. Lamb, K. Fostiropoulos & D. Huffman, "Solid C.sub.60 : A New Form of Carbon," Nature, vol. 347, pp. 354-358 (1990).
T. Ebbesen & P. Ajayan, "Large-scale Synthesis of Carbon Nanotubes," Nature, vol. 358, pp. 220-221 (1992).
P. Ajayan & S. Iijima, "Capillarity-induced Filling of Carbon Nanotubes," Nature, vol. 361, pp. 333-334 (1993).
S. Iijima, T. Ichihashi & Y. Ando, "Pentagons, Heptagons and Negative Curvative in Graphite Microtubule Growth," Nature, vol. 356, pp. 776-778 (1992).

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