Matches 51 - 100 out of 358 < 1 2 3 4 5 6 7 8 >


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US20120308471 SELECTIVE ETCHING OF SINGLE WALLED CARBON NANOTUBES  
Described is a method for the selective etching of single walled carbon nanotubes with CO2 where nanotubes of small diameters are removed.
US20110318255 CARBON NANOTUBE STRUCTURE  
A carbon nanotube structure includes a number of carbon wires and a number of second carbon nanotubes. Each of the carbon nanotube wires includes a number of first carbon nanotubes joined end to...
US20100021367 FACILE PURIFICATION OF CARBON NANOTUBES WITH LIQUID BROMINE AT ROOM TEMPERATURE  
A method of removing metal impurities from carbon nanotubes includes treating carbon nanotubes with distilled bromine in a substantially oxygen- and water-free atmosphere and then removing the...
US20090214816 Aligned Carbon Nanotube Bulk Structure Having Portions Different in Density, Process for Producing The Same and Uses thereof  
An aligned carbon nanotube bulk structure having portions different in density of the invention is characterized by being composed of carbon nanotubes aligned in a predetermined direction and...
US20090214411 METHOD OF SELECTIVELY ELIMINATING METALLIC CARBON NANOTUBES, SEMICONDUCTING CARBON NANOTUBES AND PREPARATION METHOD THEREOF USING THE SAME  
Metallic carbon nanotubes (“CNTs”) may be selectively eliminated and semiconducting CNTs may be prepared using light-irradiation. The light provided by the light-irradiation may have a wavelength...
US20110038786 Separation of Carbon Nanotubes in Density Gradients  
The separation of single-walled carbon nanotubes (SWNTs), by chirality and/or diameter, using centrifugation of compositions of SWNTs in and surface active components in density gradient media.
US20090291042 Continuous Method for Producing Inorganic Nanotubes  
Production of nanotubes of carbon or of other inorganic material by moving a carbon-containing substrate, such as a tape or belt of carbon fibres, within a reaction chamber either though an...
US20100080748 CONTINUOUS METHOD AND APPARATUS OF PURIFYING CARBON NANOTUBES  
Provided is a continuous method and apparatus of purifying carbon nanotubes. The continuous method and apparatus of purifying carbon nanotubes is characterized in a first purifying step for...
US20080268297 Gas Diffusion Substrate  
A gas diffusion substrate includes a non-woven network of carbon fibres, the carbon fibres are graphitised but the non-woven network has not been subjected to a graphitisation process. A mixture...
US20090220408 METHOD OF CUTTING CARBON NANOTUBES AND CARBON NANOTUBES PREPARED BY THE SAME  
A method of cutting carbon nanotubes and carbon nanotubes prepared by the same are disclosed. The cutting method includes preparing a π-stacking complex including a doping metal, a non-polar...
US20060062715 Ultrathin carbon fibers  
An ultrathin carbon fiber having two or more tubular graphene sheets layered is disclosed. The tubular graphene sheets has a polygonal cross section in a direction substantially orthogonal to the...
US20120063988 Dissolution Of Graphite, Graphite And Graphene Nanoribbons In Superacid Solutions And Manipulation Thereof  
Methods for dissolving carbon materials such as, for example, graphite, graphite oxide, oxidized graphene nanoribbons and reduced graphene nanoribbons in a solvent containing at least one...
US20100004372 Metal oxide particles carrying carbon nanotubes and granular carbon nanotubes  
The invention provides novel metal oxide particles on which carbon nanotubes are supported. Needle- or flake-like crystalline metal oxide particles characterized in that carbon nanotubes grown...
US20100329502 BOBBIN AND LOUDSPEAKER USING THE SAME  
A bobbin for a loudspeaker includes at least one base and at least one carbon nanotube structure. The at least one carbon nanotube structure is positioned on at least one surface of the base. A...
US20100028247 METHODS FOR SELECTIVE FUNCTIONALIZATION AND SEPARATION OF CARBON NANOTUBES  
The present invention is directed toward methods of selectively functionalizing carbon nanotubes of a specific type or range of types, based on their electronic properties, using diazonium...
US20140271443 High Glass Transition Lignins and Lignin Derivatives for the Manufacture of Carbon and Graphite Fibers  
High glass transition temperature lignin derivatives and methods of making the same are disclosed herein. In addition, methods for making carbon nanofibers from the lignin derivatives is also...
US20080292531 ELECTRICAL CURRENT-INDUCED STRUCTURAL CHANGES AND CHEMICAL FUNCTIONALIZATION OF CARBON NANOTUBES  
A method of cutting, thinning, welding and chemically functionalizing multiwalled carbon nanotubes (CNTs) with carboxyl and allyl moieties, and altering the electrical properties of the CNT films...
US20120148839 COMPOSITION CONTAINING SINGLE-WALLED NANOTUBES  
An atmosphere of a carbon source comprising an oxygenic compound is brought into contact with a catalyst with heating to yield single-walled carbon nanotubes. The carbon source comprising an...
US20100061918 PROCESS FOR PRODUCING SINGLE-WALLED CARBON NANOTUBES WITH INCREASED DIAMETER  
There is provided a process for producing single-walled carbon nanotubes with an increased diameter, characterized in that it comprises a diameter-increasing treatment step of heating carbon...
US20050074391 Method and apparatus for treating mixed waste by pyrolysis  
A method and apparatus for treating mixed waste by pyrolysis. Organic mass is carbonized by heating to carbon in a pyrolysis reactor (3) in an oxygen-free environment. Pyrolysis gases are...
US20090285745 Method for Production of Carbon Nanotube and Method for Purification of the Same  
The present invention provides a method for producing a carbon nanotube having a high purity and a method for purifying an unpurified carbon nanotube or a carbon nanotube having a low purity. The...
US20100233781 Tubular nanostructure targeted to cell membrane  
Devices, compositions, and methods are described which provide a tubular nanostructure targeted to a lipid bilayer membrane. The targeted tubular nanostructure can have a surface region configured...
US20090214847 CARBON NANOTUBE FREESTANDING MEMBRANE, PROCESS FOR PRODUCTION OF THE SAME, COMPOSITES HAVING CARBON NANOTUBE MEMBRANES AND PROCESS FOR PRODUCTION THEREOF  
The invention provides a composite comprising a substrate and a membrane of vertically aligned carbon nanotubes formed on the substrate which membrane is independent of the material of the...
US20140227481 STRUCTURE FOR FORMING CARBON NANOFIBER, CARBON NANOFIBER STRUCTURE AND METHOD FOR PRODUCING SAME, AND CARBON NANOFIBER ELECTRODE  
Provided is a structure for forming carbon nanofiber, including a base material containing an oxygen ion-conductive oxide, and a metal catalyst that is provided on one surface side of the base...
US20130207026 Highly Conductive Carbon Nanotube Having Bundle Moieties With Ultra-Low Bulk Density and Its Manufacturing Method  
The present invention relates to a highly conductive carbon nanotube having bundle moieties with ultra low apparent density less than 0.01 g/cc. More specifically, this invention relates to a...
US20070218346 Acrylic fiber bonded carbon fiber paper as gas diffusion media for fuel cell  
A gas diffusion media for a fuel cell, such as a proton exchange membrane fuel cell, is provided. The gas diffusion media includes carbonizable acrylic pulp fibers instead of conventional phenolic...
US20090155578 Nano-scaled graphene platelets with a high length-to-width aspect ratio  
This invention provides a nano-scaled graphene platelet (NGP) having a thickness no greater than 100 nm and a length-to-width ratio no less than 3 (preferably greater than 10). The NGP with a high...
US20120083408 CARBON NANOTUBE AND METHOD FOR PRODUCING SAME  
There is provided a high-purity carbon nanotube, which can be produced with simple purification by causing graphite to be hardly contained in crude soot obtained immediately after being...
US20090232724 METHOD OF SEPARATING METALLIC AND SEMICONDUCTING CARBON NANOTUBES FROM A MIXTURE OF SAME  
A method which permits large-scale separation of a semiconducting carbon nanotube from a mixture of metallic and semiconducting carbon nanotubes based on differences in solubility resulting from...
US20140302315 LIGNIN/POLYACRYLONITRILE-CONTAINING DOPES, FIBERS, AND METHODS OF MAKING SAME  
The invention relates to a process for preparing a composition comprising 10 to 45% of the total solids weight lignin, polyacrylonitrile or a polyacrylonitrile copolymer, and a solvent to form a...
US20080260617 FUNCTIONALIZED FEW-WALLED CARBON NANOTUBES (FWNTs) AND METHODS OF MAKING AND USING THE SAME  
Few-walled carbon nanotubes (FWNTs) can be synthesized in a simple chemical vapor deposition (CVD) system using a mixture of methanol and ethanol as the carbon source. In preferred embodiments,...
US20090048386 METHOD FOR TREATMENT OF CARBON NANOTUBES  
The invention relates to a simple and economic method for treatment of carbon nanotubes, in particular, for the modification of the surface thereof by functionalisation for improving the...
US20110003151 FINE CARBON FIBER, FINE SHORT CARBON FIBER, AND MANUFACTURING METHOD FOR SAID FIBERS  
A novel fine carbon fiber is produced by vapor growth, in which a graphite-net plane consisting of carbon atoms alone forms a temple-bell-shaped structural unit comprising closed head-top part and...
US20140329093 FINE CARBON FIBER, FINE SHORT CARBON FIBER, AND MANUFACTURING METHOD FOR SAID FIBERS  
A novel fine carbon fiber produced by vapor growth, in which a graphite-net plane consisting of carbon atoms alone forms a temple-bell-shaped structural unit including a closed head-top part and a...
US20050100500 High-density recording media  
A high-density recording medium comprising a fullerene/carbon nanotube complex (peapod) comprising a single-wall carbon tube in which fullerenes are inserted in series. A structural difference...
US20070098621 Sidewall derivatized carbon nanotubes  
This invention is directed to making chemical derivatives of carbon nanotubes and to uses for the derivatized nanotubes, including making arrays as a basis for synthesis of carbon fibers. In one...
US20080279754 Induced electrical property changes in single walled carbon nanotubes by electromagnetic radiation  
In the apparatus and process of the present invention, it is possible to fabricate CNTs with specific diameters and morphologies. The morphology selection can yield samples of pre-selected...
US20080152574 Oil Agent for Precursor Fiber of Carbon Fiber, Carbon Fiber and Production Method of the Carbon Fiber  
By using an oil agent for precursor fiber of carbon fiber containing a base compound and a liquid fine particle, and said liquid fine particle contains a liquid of which kinematic viscosity at...
US20100081568 METHODS FOR PRODUCING CARBON NANOTUBES WITH CONTROLLED CHIRALITY AND DIAMETER AND PRODUCTS THEREFROM  
Exemplary methods of producing single-walled carbon nanotubes (SWCNTs) are disclosed. A plurality of seed cap molecules having a same diameter and a same chirality are prepared. The plurality of...
US20080156733 Materials Based on Tangled Nanotubes or Nanofibres, Preparation Method Thereof and Use of Same  
A method of preparing a solid material based on tangled nanotubes and/or nanofibres, includes a step of growing carbon nanofibres and/or nanotubes with restraint in a contained reactor; and the...
US20120149824 CARBON NANOTUBE AGGLOMERATE  
The invention relates to a method for producing carbon nanotubes in the agglomerated form and thus obtained novel carbon nanotube agglomerates.
US20070116628 Charged carbon nanotubes for use as sensors  
The invention relates to charged single-wall carbon nanotubes and their use in sensing and monitoring devices. The charged single-wall carbon nanotubes, have been found to have spectral shifts in...
US20100015032 Carbon-based material and method of producing the same, and composite material and method of producing the same  
A method of producing a carbon-based material having an activated surface includes: (a) mixing an elastomer and a carbon material, and dispersing the carbon material by applying a shear force to...
US20100047152 GROWTH OF CARBON NANOTUBES USING METAL-FREE NANOPARTICLES  
The present invention provides a method for forming at least one carbon nanotube (16) by using metal-free catalyst nanoparticles (14), for example Si or Ge comprising nanoparticles. The method...
US20070122687 Carbon fiber nonwoven fabric, and production method and use thereof  
A carbon fiber nonwoven fabric comprising an aggregate of carbon microfibers having a fiber diameter of 0.001 to 2 μm and a production method thereof are provided. The nonwoven fabric is useful as...
US20100086470 Rapid microwave process for purification of nanocarbon preparations  
A novel microwave-assisted process is described for the rapid removal of catalytic metal and non-desirable carbon impurities in fullerene, single wall, and multiple wall carbon nanotube...
US20080003168 Procedure to Generate Nanotubes and Compound Nanofibres From Coaxial Jets  
The invention relates to a method of producing nanotubes from coaxial jets of immiscible liquids or poorly-miscible liquids. The purpose of the invention is to produce hollow fibres (nanotubes) or...
US20130052120 METHOD FOR SEPARATING AND COLLECTING CARBON NANOTUBE, AND CARBON NANOTUBE  
Metallic CNTs and semiconducting CNTs are efficiently separated from a CNT mixture of these CNTs, and semiconducting CNTs are separated by structure by using a method that enables separation in...
US20060188723 Coating compositions containing single wall carbon nanotubes  
The present invention relates to a coating composition comprising an aqueous dispersion of single wall carbon nanotubes with covalently attached hydrophilic species selected from the group...
US20060111005 Nanorods and other materials from condensed phase conversion and growth instead of from vapor  
Compositions, systems and methods are described for condensed phase conversion and growth of nanorods and other materials. A composition includes a plurality of nanorods that define a local...

Matches 51 - 100 out of 358 < 1 2 3 4 5 6 7 8 >