Chemistry of inorganic compounds – Carbon or compound thereof – Elemental carbon
Reexamination Certificate
2011-03-01
2011-03-01
Hendrickson, Stuart L. (Department: 1736)
Chemistry of inorganic compounds
Carbon or compound thereof
Elemental carbon
C423S447300, C423S460000, C252S503000
Reexamination Certificate
active
07897131
ABSTRACT:
The present invention relates to a method for manufacturing a transition metal-carbon nanotube hybrid material using nitrogen as a medium. The present invention is characterized in that nitrogen-added carbon nanotube is grown in the presence of metal catalyst particles by reacting an hydrocarbon gas with a nitrogen gas by a chemical vapor deposition (CVD) and a transition metal-carbon nanotube hybrid material where a transition metal is uniformly attached to the entire carbon nanotube structure in which nitrogen with a great chemical reactivity is added as heterogeneous elements is chemically manufactured. Therefore, the present invention does not use an acid treatment required to attach transition-metal atoms to the carbon-nanotube, a surface treating process using a surfactant and the like and an inhibitor for preventing the coagulation of the transition metal so that a simplification of the process is obtained and the method is an environment-friendly method. The transition metal-carbon nanotube hybrid material manufactured by the above can be applied variously as a hydrogen storage material, a catalyst material, an electric field emission device and an electrode material.
REFERENCES:
Lee, et al., Growth of Vertically Alligned Nitrogen-Doped Carbon Nanotubes: Control of the Nitrogen Content over the Termperature Range 900-1100C, J. Phys. Chem. B 2003; 107: 12958-12963.
Li, et al., Microwave polyol synthesis of Pt/CNTs catalysts: Effects of pH on particle size and electrocatalytic activity for methanol electrooxidization, Carbon 2005; 43: 2168-2174.
Zhang, Y., et al., “Formation of metal nanowires on suspended single-walled carbon nanotubes”,Applied Physics Letters, vol. 77, No. 19, pp. 3015-3017, (2000).
Quinn, B.M., et al., “Electrodeposition of Noble Metal Nanoparticles on Carbon Nanotubes”,J. Am. Chem. Soc., vol. 127, pp. 6146-6147, (2005).
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Bae Jun-Hyeon
Han Kyu-Sung
Kang Jeung-Ku
Kim Hyun-Seok
Kim Se-Yun
Chung Sungyeop
Hendrickson Stuart L.
Korea Advanced Institute of Science and Technology
McCracken Daniel C.
Meyer Jerald L.
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