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7390593 Fine carbon fiber, method for producing the same and use thereof  
A vapor grown fine carbon fiber, each fiber filament of the carbon fiber comprising, in its interior, a hollow space extending along the fiber filament, and having a multi-layer structure, an outer...
7390475 Process for producing vapor-grown carbon fibers  
A process for continuously producing carbon fibers in a vapor phase by causing a carbon compound to contact a catalyst and/or a catalyst precursor compound in a heating zone. In this process, the...
7387735 Method of isolating semiconducting carbon nanotubes  
A method of isolating semiconducting carbon nanotubes includes mixing carbon nanotubes with a mixed acid solution of nitric acid and sulfuric acid to obtain a dispersion of carbon nanotubes,...
7378075 Aligned carbon nanotube films and a process for producing them  
Fine catalyst particles are loaded on a sol-gel method porous carrier having fine pores of 0.1-50 nm and a carbon compound is decomposed to form a carbon nanotube film on the carrier that is...
7374793 Methods and structures for promoting stable synthesis of carbon nanotubes  
A method for synthesizing carbon nanotubes and structure formed thereby. The method includes forming carbon nanotubes on a plurality of synthesis sites supported by a first substrate, interrupting...
7368087 Gas re-using system for carbon fiber manufacturing processes  
A gas re-use system for carbon fiber manufacturing processes based on hydrocarbon thermal decomposition. The system permits re-use of the output gas from the carbon fiber manufacturing process, a...
7357983 Controlled growth of single-wall carbon nanotubes  
A transition metal substituted, amorphous mesoporous silica framework with a high degree of structural order and a narrow pore diameter distribution (±0.15 nm FWHM) was synthesized and used for...
7357907 Method for producing single walled carbon nanotubes  
A catalyst composition and method of use of the catalyst composition for producing single-walled carbon nanotubes (SWNTs). The catalyst is cobalt (Co) and molybdenum (Mo) on a silica support. The...
7338684 Vapor grown carbon fiber reinforced composite materials and methods of making and using same  
A process for producing-vapor grown carbon fiber (VGCF) reinforced continuous fiber performs for the manufacture of articles with useful mechanical, electrical, and thermal characteristics is...
7338648 Method for low temperature synthesis of single wall carbon nanotubes  
The present invention is directed towards a method of producing single wall carbon nanotubes which comprises providing a catalyst comprising an alumina support and a component selected from the...
7335528 Methods of nanotube films and articles  
Nanotube films and articles and methods of making the same. A conductive article includes an aggregate of nanotube segments which contact other nanotube segments to define a plurality of conductive...
7335344 Method and apparatus for synthesizing filamentary structures  
Method and apparatus for producing filamentary structures. The structures include single-walled nanotubes. The method includes combusting hydrocarbon fuel and oxygen to establish a non-sooting...
7329398 Preparation of carbon nanotubes  
The present invention is to provide a process for the preparation of carbon nanotubes or nanofibers, which comprises introducing in a gaseous phase a colloidal solution of metal nanoparticles...
7323157 Production of agglomerates from gas phase  
A process for production of an agglomerate comprises the steps of: passing a flow of one or more gaseous reactants into a reactor; reacting the one or more gaseous reactants within a...
7311889 Carbon nanotubes, process for their production, and catalyst for production of carbon nanotubes  
The invention provides a process for production of carbon nanotubes whereby a laminate prepared by alternating lamination of a metal catalyst and a material other than the metal catalyst is cut to...
7303790 Electron cyclotron resonance plasma deposition process and device for single-wall carbon nanotubes and nanotubes thus obtained  
Electron cyclotron resonance plasma deposition process and device for single-wall carbon nanotubes (SWNTs) on a catalyst-free substrate, by injection of microwave power into a deposition chamber...
7288321 Carbon nanotube array and method for forming same  
A method for forming a carbon nanotube array on a metal substrate includes the following steps: providing a metal substrate ( 11 ); depositing a silicon layer ( 21 ) on a surface of the metal...
7282191 Carbon nanotube growth  
The growth of carbon nanotubes such as single-walled carbon nanotubes (SWNTs) is achieved using a catalyst and carbon feedstock gas, with the catalyst being delivered using an approach for...
7261871 Fabrication of carbon nanotube films from alkyne-transition metal complexes  
A simple method for the production or synthesis of carbon nanotubes as free-standing films or nanotube mats by the thermal decomposition of transition metal complexed alkynes with aryl, alkyl,...
7258590 Electron emitting device using carbon fiber; electron source; image display device; method of manufacturing the electron emitting device; method of manufacturing electron source using the electron emitting device; and method of manufacturing image display device  
There is provided an electron emitting device utilizing a plurality of carbon fibers, in which a mean diameter value of the plurality of carbon fibers is in a range from a minimum of 10 nm to a...
7250148 Method for making single-wall carbon nanotubes using supported catalysts  
A method for growing single-wall carbon nanotubes involves preparing a catalyst comprising catalytic metals, iron and molybdenum, and magnesium oxide support material and contacting the catalyst...
7235159 Methods for producing and using catalytic substrates for carbon nanotube growth  
A catalyst material for carbon nanotube synthesis includes a uniform dispersion of host particles on a substrate. The host particles themselves include catalyst nanoparticles that are effective to...
7214361 Method for synthesis of carbon nanotubes  
Carbon nanotubes are formed by chemical vapor deposition using metal nanoparticles as a growth substrate. Control over the size and properties of the carbon nanotubes is achieved by controlling the...
7214360 Carbon nanotubes fabrication and hydrogen production  
This invention relates to a method of producing multi-walled carbon nanotubes (MWNT) by catalytic decomposition of gaseous carbon-containing compounds over a transition metal-based catalyst. The...
7205069 Membrane comprising an array of single-wall carbon nanotubes  
This invention relates generally to membranes comprising an array of single-wall carbon nanotubes (SWNT) wherein the membrane is nanoporous. In one embodiment, the membrane comprises a...
7204970 Single-wall carbon nanotubes from high pressure CO  
The present invention discloses the process of supplying high pressure (e.g., 30 atmospheres) CO that has been preheated (e.g., to about 1000° C.) and a catalyst precursor gas (e.g., Fe(CO) 5 ) in...
7201887 Catalytic growth of single-and double-wall carbon nanotubes from metal particles  
The present invention concerns a method for growing carbon nanotubes using a catalyst system that preferentially promotes the growth of single- and double-wall carbon nanotubes, rather than larger...
7198772 Methods and catalysts for the manufacture of carbon fibrils  
An improved catalyst for producing carbon fibrils is made by incorporating an effective yield-enhancing amount of a carboxylate into a fibril-forming catalyst. Alternatively, such a catalyst is...
7192567 Precursor soot synthesis of fullerenes and nanotubes without formation of carbonaceous soot  
The present invention is a method for the synthesis of fullerenes and/or nanotubes from precursor soot without the formation of carbonaceous soot. The method comprises the pyrolysis of a...
7175494 Forming carbon nanotubes at lower temperatures suitable for an electron-emitting device  
An electron-emitting device contains a vertical emitter electrode patterned into multiple laterally separated sections situated between the electron-emissive elements, on one hand, and a substrate,...
7169374 Templated growth of carbon nanotubes  
A method of growing carbon nanotubes uses a synthesized mesoporous silica template with approximately cylindrical pores being formed therein. The surfaces of the pores are coated with a carbon...
7161286 Carbon nanotube array and method for making same  
A carbon nanotube-based device ( 40 ) includes a substrate ( 10 ), a number of catalytic nano-sized particles ( 131 ) formed on the substrate, and an aligned carbon nanotube array ( 15 ) extending...
7160585 Process for making at least one nanotube between two electrically conducting elements and device for implementing such a process  
A process makes at least one nanotube between two electrically conducting elements located on a substrate, using, inside a deposition chamber, a microwave power, a magnetic field, and at least one...
7160531 Process for the continuous production of aligned carbon nanotubes  
Novel methods and apparati for continuous production of aligned carbon nanotubes are disclosed. In one aspect, the method comprises dispersion of a metal catalyst in a liquid hydrocarbon to form a...
7157069 Apparatuses and processes for synthesis of carbon nanotubes using inverse diffusion flame  
Disclosed is an apparatus for the combustion synthesis of carbon nanotubes characterized with the combustor having an oxidizing agent inlet, a fuel inlet and an inert gas inlet, such that the...
7157068 Varied morphology carbon nanotubes and method for their manufacture  
The present invention describes the preparation of carbon nanotubes of varied morphology, catalyst materials for their synthesis. The present invention also describes reactor apparatus and methods...
7150864 Ropes comprised of single-walled and double-walled carbon nanotubes  
The present invention concerns a method for growing carbon nanotubes using a catalyst system that preferentially promotes the growth of single- and double-wall carbon nanotubes, rather than larger...
7147831 Carbon nanotube-based device and method for making the same  
A carbon nanotube-based device includes a substrate ( 10 ); a catalyst layer ( 13 ) disposed on the substrate, the catalyst layer comprising a number of nano-sized catalyst particles ( 131 ), a...
7147533 Method of producing electron emitting device using carbon fiber, electron source and image forming apparatus, and ink for producing carbon fiber  
The present invention provides a method of producing an electron emitting device using a carbon fiber using a catalyst, capable of preferably growing carbon fibers at a low temperature without the...
7144564 Process for producing single wall nanotubes using unsupported metal catalysts and single wall nanotubes produced according to this method  
A process for producing hollow, single-walled carbon nanotubes by catalytic decomposition of one or more gaseous carbon compounds by first forming a gas phase mixture carbon feed stock gas...
7144563 Synthesis of branched carbon nanotubes  
The present invention discloses a relatively simple CVD method for forming branched carbon nanotubes. In general, the method includes adding a dopant to the precursor materials. The dopant can be a...
7138100 Process for making single-wall carbon nanotubes utilizing refractory particles  
A continuous gas-phase method for producing single-wall carbon nanotubes at high catalyst productivity and high yield is disclosed. The method involves the use of a novel in-situ formed catalyst to...
7135159 Synthesis of nanoscaled carbon materials  
A method for producing nanoscaled carbon materials comprising providing, dispersed in a carrier gas, finely divided substrate particles on which to nucleate a catalyst, providing in said carrier...
7132994 Optical antenna array for harmonic generation, mixing and signal amplification  
An optical antenna collects, modifies and emits energy at light wavelengths. Linear conductors sized to correspond to the light wavelengths are used. Nonlinear junctions of small dimension are used...
7128888 Proton conductor and method for manufacturing the same, and electrochemical device  
A proton conductor, a method for manufacturing the same, and an electrochemical device using the proton conductor are provided. The proton conductor includes a carbon derivative which has a carbon...
7125534 Catalytic growth of single- and double-wall carbon nanotubes from metal particles  
Single-walled carbon nanotubes have been synthesized by the catalytic decomposition of both carbon monoxide and ethylene over a supported metal catalyst known to produce larger multi-walled...
7118693 Conformal coatings comprising carbon nanotubes  
The invention is directed to conformal coatings that provide excellent shielding against electromagnetic interference (EMI). A conformal coating comprises an insulating layer and a conducting layer...
7116273 Microwave antenna and process for producing the same  
The microwave antenna includes a substrate, an antenna element supported on a surface of the substrate, and a power feeding electrode connected to the antenna element. The antenna element includes...
7115306 Method of horizontally growing carbon nanotubes and device having the same  
Provided are a method of growing carbon nanotubes and a carbon nanotube device. The method includes: depositing an aluminum layer on a substrate; forming an insulating layer over the substrate to...
7115305 Method of producing regular arrays of nano-scale objects using nano-structured block-copolymeric materials  
A method of forming a periodic array of nano-scale objects using a block copolymer, and nano-scale object arrays formed from the method are provided. The method for forming the arrays generally...
Matches 1 - 50 out of 204 1 2 3 4 5 >