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| Number | Title | Issue Date |
| 7518045 | Method of preparing carbon nanocages The present invention provides a simple method of mass producing high purity carbon nanocages. The method of preparing carbon nanocages comprises introducing an inert gas into a reactor equipped with a spray nozzle and raising the temperature of the reactor to a pyr... | 04/14/2009 |
| 7504570 | Method of manufacturing carbon nanotubes A method of manufacturing carbon nanotubes that is capable of growing carbon nanotubes on a substrate by a CVD method without giving rise to residual carbon impurities is provided. The method of manufacturing carbon nanotubes according to the present invention is a ... | 03/17/2009 |
| 7435403 | Separation and purification of fullerenes A method of processing fullerenes includes generating a gas stream having suspended soot particles and condensable gases, wherein the condensable gases comprise fullerenes, and separating at least a portion of the condensable gases from the suspended soot particles ... | 10/14/2008 |
| 7431965 | Continuous growth of single-wall carbon nanotubes using chemical vapor deposition The invention relates to a chemical vapor deposition process for the continuous growth of a carbon single-wall nanotube where a carbon-containing gas composition is contacted with a porous membrane and decomposed in the presence of a catalyst to grow single-wall car... | 10/07/2008 |
| 7408186 | Controlled alignment catalytically grown nanostructures Systems and methods are described for controlled alignment of catalyticaly grown nanostructures in a large-scale synthesis process. A composition includes an elongated nanostructure including a first segment defining a first axis and a second segment coupled to the ... | 08/05/2008 |
| 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 diameter of 2 to 500 nm, and an aspect ratio of 1 to 100, wherein th... | 06/24/2008 |
| 7384668 | CCVD method for producing tubular carbon nanofibers The invention relates to a CCVD method for producing tubular carbon nanofibers on a support by catalytically depositing carbon out of the vapor phase. The inventive method is characterized in that a catalyst layer, which is deposited without current and which is bas... | 06/10/2008 |
| 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 aligned perpendicular to the carrier surface. The starting sol to be proces... | 05/27/2008 |
| 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 nanotube synthesis, mounting a free end of each carbon nanotube to a ... | 05/20/2008 |
| 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 Mo occurs primarily as dispersed Mo oxide clusters on the support whil... | 04/15/2008 |
| 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 the templated growth of single walled carbon nanotubes (SWNT). The phys... | 04/15/2008 |
| 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 disclosed. Continuous fiber preforms are treated with a catalyst or cataly... | 03/04/2008 |
| 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 group consisting of reduced Fe, reduced Fe/Mo, Fe oxide, and Fe/Mo oxide... | 03/04/2008 |
| 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 pathways along the article. Segments may have different lengths and ... | 02/26/2008 |
| 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 flame and providing an unsupported catalyst to synthesize the filamentary... | 02/26/2008 |
| 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 optionally containing a surfactant together with an optional carbon source... | 02/12/2008 |
| 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 reaction zone of the reactor to... | 01/29/2008 |
| 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 expose the laminated structure, and carbon nanotubes are grown on the... | 12/25/2007 |
| 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 catalyst layer. The catalyst layer includes a plur... | 11/06/2007 |
| 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 relatively clean delivery and placement thereof. In one example embodiment, n... | 10/16/2007 |
| 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, alkenyl, or alkynyl substituents. In particular, transition metal (e.g. C... | 08/28/2007 |
| 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 with a gaseous carbon-containing feedstock at a sufficient temperature ... | 07/31/2007 |
| 7245068 | Apparatus for controlled alignment of catalytically grown nanostructures Systems and methods are described for controlled alignment of catalyticaly grown nanostructures in a large-scale synthesis process. An apparatus includes an electrode including: a protruding section defining an edge; and a nonprotruding section coupled to the protru... | 07/17/2007 |
| 7217650 | Metallic nanowire interconnections for integrated circuit fabrication A method for fabricating an electrical interconnect between two or more electrical components. A conductive layer is provided on a substarte and a thin, patterned catalyst array is deposited on an exposed surface of the conductive layer. A gas or vapor of a metallic... | 05/15/2007 |
| 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 catalyst comprises A-B and a support, wherein A is selected from the gr... | 05/08/2007 |
| 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 multi-walled carbon nanotubes. Ropes of the carbon nanotubes are form... | 04/10/2007 |
| 7183228 | Carbon nanotube growth Patterned growth of arrays of SWNTs is achieved at the full-wafer scale. According to an example embodiment of the present invention, the chemistry of CH4 CVD has been discovered to be sensitive to the concentration of H2, leading to three regi... | 02/27/2007 |
| 7169673 | Atomic layer deposited nanolaminates of HfO/ZrOfilms as gate dielectrics A dielectric film containing HfO2/ZrO2 nanolaminates and a method of fabricating such a dielectric film produce a reliable gate dielectric having an equivalent oxide thickness thinner than attainable using SiO2. A gate dielectric is ... | 01/30/2007 |
| 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) thereon; depositing a catalyst layer (31) on the ox... | 01/09/2007 |
| 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 electronic cyclotron resonance zone faciliting ionization and/or diss... | 01/09/2007 |
| 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 inverse diffusion flame occurs within the combustor, thereby producing car... | 01/02/2007 |
| 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 of optimizing and controlling process parameters for the manufacture ... | 01/02/2007 |
| 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 multi-walled carbon nanotubes. Ropes of the carbon nanotubes are form... | 12/19/2006 |
| 7150840 | Graphite fine carbon fiber, and production method and use thereof A graphitized fine carbon fiber comprising a hollow space extending along its center axis, and a plurality of graphene sheets, wherein the fiber has an end surface comprising a portion of discontinuity in which ends of graphene sheets are not bonded to one another a... | 12/19/2006 |
| 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 comprising one or more gaseous carbon compounds, each having one to six carbo... | 12/05/2006 |
| 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 gas a catalyst precursor material, decomposing the catalyst precursor m... | 11/14/2006 |
| 7105428 | Systems and methods for nanowire growth and harvesting The present invention is directed to systems and methods for nanowire growth and harvesting. In an embodiment, methods for nanowire growth and doping are provided, including methods for epitaxial oriented nanowire growth using a combination of silicon precursors. In... | 09/12/2006 |
| 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 from Group VIII, including for example Co, Ni, Ru, Rh, Pd, Ir, and Pt,... | 08/22/2006 |
| 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 containing a metal organic compound containing any one metal of Pd, ... | 07/11/2006 |
| 6699525 | Method of forming carbon nanotubes and apparatus therefor Carbon nanotubes are formed on a substrate by providing a coiled filament in a chemical vapor deposition chamber, supporting a substrate having a catalytic coating provided thereon inside the coiled filament, evacuating air, if present, from the chamber, ... | 03/02/2004 |