摘要:
We disclose a novel filter and process that converts the wastes in automotive exhausts into carbon nanotubes. The filter surface is composed of iron of similar catalyst. The filter is placed along the pathway of exhaust streamlines preferably at an angle of more than 5°. and less than 15°. The filter is heated to temperatures in the range of 200-1000° C. The filter described in this invention can work in its own or supplement existing filtration systems. The end product of this filtration system is a material that is commercially valuable. The synthesized carbon nanotubes are purified using ionic liquid solution that is capable of removing undesirable carbonated material and leaving 95% purified carbon nanotubes. The purified carbon nanotubes have a diameter of 20-50 nm and a length of 1-10 micro meters.
摘要:
Methods for synthesizing macroscale 3D heteroatom-doped carbon nanotube materials (such as boron doped carbon nanotube materials) and compositions thereof. Macroscopic quantities of three-dimensionally networked heteroatom-doped carbon nanotube materials are directly grown using an aerosol-assisted chemical vapor deposition method. The porous heteroatom-doped carbon nanotube material is created by doping of heteroatoms (such as boron) in the nanotube lattice during growth, which influences the creation of elbow joints and branching of nanotubes leading to the three dimensional super-structure. The super-hydrophobic heteroatom-doped carbon nanotube sponge is strongly oleophilic and an soak up large quantities of organic solvents and oil. The trapped oil can be burnt off and the heteroatom-doped carbon nanotube material can be used repeatedly as an oil removal scaffold. Optionally, the heteroatom-doped carbon nanotubes in the heteroatom-doped carbon nanotube materials can be welded to form one or more macroscale 3D carbon nanotubes.
摘要:
Carbon nanotubes, a method for preparing the same and an element using the same are provided. The method for preparing carbon nanotubes includes synthesizing carbon nanotubes from carbon source using an arc-discharge method in the presence of catalysts and promoter, wherein the promoter contains an element capable of reducing the surface energy of carbon nanotubes. Carbon nanotubes with high purity and narrow diameter distribution can thus be prepared.
摘要:
The present invention relates to dispersions of nanostructured carbon in organic solvents containing alkyl amide compounds and/or diamide compounds. The invention also relates to methods of dispersing nanostructured carbon in organic solvents and methods of mobilizing nanostructured carbon. Also disclosed are methods of determining the purity of nanostructured carbon.
摘要:
The present invention relates to novel carbon nanoparticles, especially to carbon nanoparticles which comprise or consist of carbon nanotubes and have been modified by means of acyl groups, to a novel process with which these modified carbon nanoparticles, especially carbon nanoparticles comprising or consisting of carbon nanotubes, are obtainable, and to the use of the modified carbon nanoparticles, especially carbon nanoparticles comprising or consisting of carbon nanotubes.
摘要:
A method for manufacturing a conductive film composed of carbon nanotubes includes the steps of dispersing carbon nanotubes in a solution in which a perfluorosulfonate polymer is dissolved as a dispersant in a solvent; and filtering the solution in which the carbon nanotubes are dispersed.
摘要:
Carbon nanotubes, a method for preparing the same and an element using the same are provided. The method for preparing carbon nanotubes includes synthesizing carbon nanotubes from carbon source using an arc-discharge method in the presence of catalysts and promoter, wherein the promoter contains an element capable of reducing the surface energy of carbon nanotubes. Carbon nanotubes with high purity and narrow diameter distribution can thus be prepared.
摘要:
Apparatus for producing a carbon structure at least including two electrodes and having forefront portions opposed to each other, and a power supply for applying a voltage between the electrodes and so that discharge plasma is produced in a discharge area between the electrodes and. The apparatus for producing a carbon structure further including a magnetic field generating unit to for forming at least a magnetic field including multidirectional lines of magnetic force or a magnetic field including a component parallel with the traveling direction of a discharge current, in an area where the discharge plasma is generated. In addition, a method for producing a carbon structure, using such an operation.
摘要:
There is provided a method of manufacturing hydrophilic carbon nanotubes, which is capable of imparting hydrophilicity without damaging the surface of the carbon nanotubes. By irradiating carbon nanotubes 4 with ultraviolet ray 3, hydrophilic functional group(s) are introduced into the surface of carbon nanotubes 4. Hydrophilicity is imparted to the carbon nanotubes to such an extent that a contact angle of water is in the range of less than 130°. Ultraviolet ray 3 is a far ultraviolet ray having a wavelength ranging from 1 to 190 nm. The irradiation with ultraviolet ray 3 is conducted in the presence of oxygen and hydrogen or in the presence of ozone and hydrogen. The end part(s) of carbon nanotubes 4 is opened by the irradiation with ultraviolet ray 3.
摘要:
The invention relates to macromolecules auto-assembled and photopolymerised around carbon nanotubes. Said macromolecules are essentially formed from rings of lipid compounds, polymerised about the nanotubes, said polymerised compounds being obtained from lipid molecules with one or two chains A, bonded to a group Z where A is a chain, CH3—(CH2)m—C≡C—C≡C—(CH2)n—, where n and m, independently=whole numbers from 1 to 16 and Z is a polar head group embodied by a —COOH, —CO—NH—Y, —NH2 or N+(R)3, where R is an alkyl with C1, to C4 and Y is a —(CH2)4—C(R1)—N(CH2—COOH)2 group with R=H, or a COOH group, where A is a single lipid chain or a group of structure (I) or (II), where R2=a COOH, or —CO—NH—Y1 group with Y1=a —(CH2)4—C (R3)—N(CH2COOH)2 group with R3=H or a COOH group, where Z and R2 can also be neutral polar head groups of the sugar or polysaccharide type. The above is of application particularly to the protection and purification of nanotubes, as a hydrophobic molecule or membrane protein vector or as a molecular motor.