Process for the mass production of multiwalled carbon nanotubes

Chemistry of inorganic compounds – Carbon or compound thereof – Elemental carbon

Reexamination Certificate

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C423S447100, C423S44500R, C977S726000

Reexamination Certificate

active

07094385

ABSTRACT:
The present invention concerns a process for the mass production of carbon nanotubes and particularly a process for selectively producing multiwalled carbon nanotubes.

REFERENCES:
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patent: 2003/0031620 (2003-02-01), Harutyunyan et al.
patent: 2003/0129122 (2003-07-01), Chen et al.
patent: 11-256430 (1999-09-01), None
patent: 2001-222150 (2001-08-01), None
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Flahaut et al. “Synthesis of single-walled carbon nanotubes using binary alloy nanoparticles prepared in situ by the reduction o oxide solid solutions” Jan. 29, 1999, Chemical Physics Letters 300, pp. 236-242.
Satishkumar et al. “Single-walled nanotubes by the pyrolysis of acetylene-organomettalic mixtures” Aug. 21, 1998, Chemical Physiscs Letters 293, pp. 47-52.
Sen et al. “Metal-filled and hollow carbon nanotubes obtained by the decomposition of metal-containing free precursor molecules” 1997, Chemistry of Materials, vol. 9, pp. 2078-2081.
Basca et al., High specific surface area carbon nanotubes from catalytic chemical vapor deposition process, Jun. 23, 2000, Chemical Physics Letters, vol. 323, pp. 566-571.
Flahaut et al., Synthesis of single-walled carbon nanotube-Co-MgO composite powders and extraction of the nanotubes, 2000, Journal of Materials Chemistry, vol. 10, pp. 249-252.
Zhong et al., Catalytic growth of carbon nanoballs with and without cobalt encapsulation, Nov. 3, 2000, Chemical Physics Letters, vol. 330, pp. 41-47.
Y. Soneda. S. et al; “High Yield of Multiwalled Carbon Nanotubes From the Decomposition of Acetylene on Co/MgO Catalyst”, CRMD CNRS-Universite, Jul. 14, 2001.

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