Chemistry of inorganic compounds – Carbon or compound thereof – Elemental carbon
Reexamination Certificate
2011-01-25
2011-01-25
Hendrickson, Stuart (Department: 1736)
Chemistry of inorganic compounds
Carbon or compound thereof
Elemental carbon
C423S447100, C423S447300, C977S843000
Reexamination Certificate
active
07875256
ABSTRACT:
The present invention discloses a method for producing carbon nanocoils, which comprises: providing a metal substrate; depositing a tin precursor on the substrate; heating the substrate with the precursor to a predetermined temperature to form a catalyst on the substrate; placing the substrate in a quartz tube furnace; and introducing carbon source gas and protective gas into the quartz tube furnace to allow carbon nanocoils to grow on the surface of the catalyst. Another method for producing carbon nanocoils is also disclosed, which includes: depositing a mixed solution of iron acetate and tin acetate on a substrate; heating the substrate with the mixing solution to a predetermined temperature to form a catalyst on the substrate; placing the substrate in a quartz tube furnace; and introducing carbon source gas and protective gas into the quartz tube furnace to allow carbon nanocoils to grow on the surface of the catalyst.
REFERENCES:
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Nobuharu Okazaki et al., “Synthesis of Carbon Tubule Nanocoils Using Fe-In-Sn-O Fine Particles as Catalysts,” J. Phys. Chem. B, Aug. 27, 2005 pp. 17366-17371, vol. 109, American Chemical Society.
Seiji Motojima et al., “Growth of Regularly Coiled Carbon Filaments by Ni Catalyzed Pyrolysis of Acetylene, and their Morphology and Extension Characteristics,” Appl. Phys. Lett., Jan. 22, 1990 pp. 321-323, vol. 56, American Institute of Physics.
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Chang Neng-Kai
Chang Shuo-Hung
Wei Bing-Chen
Bacon & Thomas PLLC
Hendrickson Stuart
National Taiwan University
Rump Richard M
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