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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...
7309404 Manufacturing apparatus and method for carbon nanotube  
Provided is a manufacturing apparatus for a carbon nanotube, including: at least two electrodes whose tips are opposed to each other, and a power supply that applies a voltage between the two...
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...
7291319 Carbon nanotube-based device and method for making the same  
A preferred carbon nanotube-based device ( 1 ) includes a substrate ( 10 ), a catalyst layer ( 30 ) disposed on the substrate, and a plurality carbon nanotube arrays ( 50, 51 ) extending from the...
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...
7211464 Doped elongated semiconductors, growing such semiconductors, devices including such semiconductors and fabricating such devices  
A bulk-doped semiconductor that is at least one of the following: a single crystal, an elongated and bulk-doped semiconductor that, at any point along its longitudinal axis, has a largest...
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...
7160532 Carbon nanotube array and method for forming same  
A method for forming a carbon nanotube array using a metal substrate includes the following steps: providing a metal substrate ( 11 ); oxidizing the metal substrate to form an oxidized layer ( 21 )...
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...
7108841 Method for forming a patterned array of single-wall carbon nanotubes  
This invention relates generally to forming a patterned array of single-wall carbon nanotubes (SWNT). In one embodiment, a nanoscale array of microwells is provided on a substrate; a metal catalyst...
7097821 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...
7094386 Method of producing single-walled carbon nanotubes  
A method of producing a carbon nanotube product comprising a catalytic particle and single-walled carbon nanotubes deposited thereon. The catalytic particles preferably contain at least one metal...
7094385 Process for the mass production of multiwalled carbon nanotubes  
The present invention concerns a process for the mass production of carbon nanotubes and particularly a process for selectively producing multiwalled carbon nanotubes.
7078008 Process for converting alkanes to carbon filaments  
The present invention includes a process for producing carbon filaments and synthesis gas from a mixture of alkanes, preferably natural gas, comprising converting a first portion of the alkanes,...
7074380 Method for manufacturing carbon fibers and electron emitting device using the same  
To provide an ink for producing a catalyst capable of stably forming metal particles which act as catalysts suitable for growth of carbon fibers by applying them onto a substrate. A solution...
7074379 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...
7056479 Process for preparing carbon nanotubes  
Carbon nanotubes are formed on carbon paper by first depositing a metal catalyst on the carbon paper, and passing a feedstock gas containing a source of carbon over the substrate while applying an...
7054064 Optical polarizer and method for fabricating such optical polarizer  
The present invention provides an optical polarizer and a method of fabricating such an optical polarizer. The optical polarizer includes a support member and an optical polarizing film supported...
7052668 Process utilizing seeds for making single-wall carbon nanotubes  
A gas-phase method for producing high yields of single-wall carbon nanotubes with high purity and homogeneity is disclosed. The method involves using preformed metal catalyst clusters to initiate...
Matches 1 - 50 out of 222 1 2 3 4 5 >