摘要:
Methods are disclosed for manufacturing carbon rods from lignin scrap and for using such lignin-derived carbon rods for manufacturing carbon nanotubes in an arc discharge process.
摘要:
3C-SiC nanowhisker and a method of synthesizing 3C-SiC nanowhisker wherein its diameter and length can be controlled. The method is safe and low cost, and the whisker can emit visible light of various wavelengths. 3C-SiC nanowhisker is formed by depositing thin film (2) made of a metal element on Si substrate (1), placing this Si substrate (1) into a plasma CVD apparatus, and holding it for predetermined time at predetermined substrate temperature in the plasma consisting of hydrogen and hydrocarbon. Si of Si substrate (1) and C in plasma dissolve at supersaturation into metal liquid particles (3), 3C-SiC nanowhisker (4) grows on the metal liquid particles (3), whisker surface is terminated with H so as to maintain the diameter constant, and the metal liquid particles (3) at whisker root take in Si from Si substrate (1) and penetrate into Si substrate (1).
摘要:
3C—SiC nanowhisker and a method of synthesizing 3C—SiC nanowhisker wherein its diameter and length can be controlled. The method is safe and low cost, and the whisker can emit visible light of various wavelengths. 3C—SiC nanowhisker is formed by depositing thin film (2) made of a metal element on Si substrate (1), placing this Si substrate (1) into a plasma CVD apparatus, and holding it for predetermined time at predetermined substrate temperature in the plasma consisting of hydrogen and hydrocarbon. Si of Si substrate (1) and C in plasma dissolve at supersaturation into metal liquid particle (3), 3C—SiC nanowhisker (4) grows on the metal liquid particles (3), whisker surface is terminated with H so as to maintain the diameter constant, and the metal liquid particles (3) at whisker root take in Si from Si substrate (1) and penetrate into Si substrate (1).
摘要:
Compositions having carbon nanotubes and two or more graphene sheets are disclosed. The carbon nanotubes can be interposed between the graphene sheets within the composition. Applicants have surprisingly found that, in some embodiments, these compositions exhibit superior absorbent and/or electrical properties. The present application also includes methods of making and using these compositions, and capacitors including these compositions.
摘要:
Compositions having carbon nanotubes and two or more graphene sheets are disclosed. The carbon nanotubes can be interposed between the graphene sheets within the composition. Applicants have surprisingly found that, in some embodiments, these compositions exhibit superior absorbent and/or electrical properties. The present application also includes methods of making and using these compositions, and capacitors including these compositions.
摘要:
Methods are disclosed for manufacturing carbon rods from lignin scrap and for using such lignin-derived carbon rods for manufacturing carbon nanotubes in an arc discharge process.
摘要:
An apparatus for synthesizing highly oriented, aligned carbon nanotubes from an alcohol includes a liquid tank for retaining an alcohol; a water cooling device for cooling the liquid tank from its outside; a condensing device for cooling and condensing vapor from the alcohol; a substrate holding device having an electrode for passing an electric current through the substrate in the alcohol; an inert gas inlet for removing air; a tank sealing device to prevent the alcohol becoming gaseous in phase; and a temperature measuring device, wherein the Si substrate with a buildup thereon of the thin film or insular particles is heated by electric current to a temperature, thereby providing a temperature gradient from the Si substrate surface toward the alcohol, wherein said thin film or insular particles is a catalyst for synthesizing carbon nanotubes, and the carbon nanotubes are synthesized.
摘要:
The control method of arranging carbon nanotubes selectively orientationally on the surface of a substrate relates to the field of nano-technology. The invention includes: a) treating the solid substrate to be hydrophilic or hydrophobic; b) attaching the organic macromolecular with hydrophilic and hydrophobic end to the surface of the purified carbon nanotubes, and dissolving those carbon nanotubes into water or a solvent; c) spreading the above solution onto the surface of water in sub-phase by controlling the surface pressure-area isotherm of the carbon nanotube film on the water surface after volatilization of water or the organic solvent; d) transferring the formed carbon nanotube film to the above treated solid substrate surface to form the arrangement layer of the carbon nanotubes. This invention possesses substantial characteristics and notable improvement. The present invention can control the arrangement direction of the carbon nanotubes and can successively remove organic molecule.