Matches 201 - 250 out of 358 < 1 2 3 4 5 6 7 8 >


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US20090140215 CATALYST FOR PRODUCING CARBON NANOTUBES BY MEANS OF THE DECOMPOSITION OF GASEOUS CARBON COMPOUNDS ON A HETEROGENEOUS CATALYST  
The present invention relates to a process for the production of carbon nanotubes, in particular those having a diameter of 3-150 nm and an aspect ratio of length:diameter (L:D)>100, by...
US20150110704 Method for Preparing Carbon Nanotube Fibers with Improved Spinning Properties Using Surfactant  
The present invention provides a method for preparing carbon nanotube fibers with improved spinning properties using a surfactant and carbon nanotube fibers prepared by the method. According to...
US20100189625 GRANULATED PRODUCT OF CARBON NANOTUBE, AND METHOD FOR PRODUCTION THEREOF  
[Problems] A carbon nanotube has a low apparent bulk density and therefore has serious problems in the workability upon use. Particularly when two or more types of carbon nanotubes are used...
US20090081454 Carbon Nanoparticles, Production and Use Thereof  
The invention relates to carbon nanoparticles from fibers or tubes or combinations thereof, which have the morphology of macroscopic, spherical and/or spheroid secondary agglomerates, separated...
US20110294013 EXFOLIATED CARBON NANOTUBES, METHODS FOR PRODUCTION THEREOF AND PRODUCTS OBTAINED THEREFROM  
In various embodiments, exfoliated carbon nanotubes are described in the present disclosure. The carbon nanotubes maintain their exfoliated state, even when not dispersed in a medium such as a...
US20060292870 A method of synthesizing nanoscale filamentary structures and electronic components comprising such structures  
A method of synthesizing electronic components incorporating nanoscale filamentary structures in which method a metallic catalyst is deposited in a nanoporous membrane, the catalyst being adapted...
US20100260658 METHOD OF PRODUCING PRE-OXIDATION FIBER AND CARBON FIBER  
There is disclosed a method of producing a pre-oxidation fiber in the production of the pre-oxidation fiber by subjecting a polyacrylic precursor fiber to pre-oxidation processing in an oxidizing...
US20090087372 PROCESS FOR THE PREPARATION OF A CATALYST FOR THE PRODUCTION OF CARBON NANOTUBES  
A process for the preparation of a catalyst for the production of carbon nanotubes, the use of the catalyst for the production of carbon nanotubes, and the carbon nanotubes obtained by this...
US20050079403 Fuel cell gas diffusion layer  
Fuel cell gas diffusion layers are disclosed.
US20070258881 Production Method of Vapor-Grown Carbon Fiber and Apparatus Therefor  
The invention provides a method of producing vapor grown carbon fiber by vapor-phase reaction conducted by supplying carbon source compounds and a catalyst or a catalyst precursor into a heating...
US20140234199 CARBON FIBER MANUFACTURING METHOD AND CARBON FIBER  
Provided is a carbon fiber manufacturing method including a surface treatment step of ejecting an ozone solution in which ozone is dissolved in solvent from a fluid ejecting port toward a carbon...
US20100254887 Carbon Fibers Having Improved Strength and Modulus and an Associated Method and Apparatus for Preparing Same  
The invention is directed to carbon fibers having high tensile strength and modulus of elasticity. The invention also provides a method and apparatus for making the carbon fibers. The method...
US20100247909 Manufacturing process of porous carbon nanofiber using a volatile organic matter  
The present invention provides a process for manufacturing a carbon nanofiber comprising: (a) mixing a carbon nanofiber precursor and camphor in a solvent to prepare a solution; (b) electric...
US20080063589 Production Method for Carbon Nano Structure of Catalyst Particle Diameter Control Mode, Production Device, and Carbon Nano Structure  
The subject invention provides a stable mass production method of carbon nano structure at low cost immune to variation of particle diameter of the catalyst microparticle in the catalyst material....
US20110039075 CARBON NANOTUBE PRECURSOR, CARBON NANOTUBE FILM AND METHOD FOR MAKING THE SAME  
A carbon nanotube film includes a plurality of carbon nanotubes. The plurality of carbon nanotubes is arranged approximately along a same first direction. The plurality of carbon nanotubes are...
US20100279097 SEMI-CONTINUOUS VAPOR GROWN CARBON FIBER MAT AND THE PRODUCING METHOD THEREOF  
A method for fabricating a semi-continuous vapor grown carbon fiber mat, comprising: (a) providing a substrate which has a catalyst on its surface; (b) placing said substrate in a furnace; (c)...
US20100296226 ELECTRIC DOUBLE LAYER CAPACITOR  
Disclosed is an electric double layer capacitor having a positive polarizable electrode and a negative polarizable electrode, each of the positive and negative polarizable electrodes having a...
US20080003169 PROCESS FOR THE CONTINUOUS PRODUCTION OF CATALYSTS  
Process for the continuous production of catalysts which are useful for the production of carbon nanotubes by decomposition of gaseous carbon compounds.
US20120328940 LEAD-ACID BATTERY FORMULATIONS CONTAINING DISCRETE CARBON NANOTUBES  
Compositions of discrete carbon nanotubes for improved performance lead acid batteries. Further disclosed is a method to form a lead-acid battery with discrete carbon nanotubes.
US20100143234 METHODS OF PREPARING AND PURIFYING CARBON NANOTUBES, CARBON NANOTUBES, AND AN ELEMENT USING THE SAME  
A method of preparing carbon nanotubes (CNT), a method of purifying carbon nanotubes, carbon nanotubes, and an element using said carbon nanotubes are provided. The method includes preparing...
US20150228897 DOSE-CONTROLLED, FLOATING EVAPORATIVE ASSEMBLY OF ALIGNED CARBON NANOTUBES FOR USE IN HIGH PERFORMANCE FIELD EFFECT TRANSISTORS  
High density films of semiconducting single-walled carbon nanotubes having a high degree of nanotube alignment are provided. Also provided are methods of making the films and field effect...
US20150118142 FORMATION OF CARBON NANOTUBE-ENHANCED FIBERS AND CARBON NANOTUBE-ENAHNCED HYBRID STRUCTURES  
Carbon fibers made by a process using a precursor that is a CNT/PAN material blend including CNTs functionalized with a nucleophilic material; and carbon fibers made with such a process.
US20140030183 CARBON NANOTUBE MANUFACTURING METHOD  
Carbon nanotubes (CNTs) having a desired diameter are selectively produced by reacting a carbon source with a cyclic compound in which multiple aromatic rings are continuously bonded. The reaction...
US20120082613 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...
US20140313636 GRAPHENE-CARBON NANOTUBE HYBRID MATERIALS AND USE AS ELECTRODES  
In some embodiments, the present invention provides methods of making graphene-carbon nanotube hybrid materials. In some embodiments, such methods generally include: (1) associating a graphene...
US20140191166 METHOD FOR FORMING VAPOR GROWN GRAPHITE FIBERS COMPOSITION AND MIXTURE FORMED BY THE SAME AND APPLICATIONS THEREOF  
A method for forming a vapor-grown graphite fibers (VGGF) composition and a VGGF composition formed by the method are provided. In this method, a transition metal compound catalyst and three...
US20150118141 DRY-JET WET SPUN CARBON FIBERS AND PROCESSES FOR MAKING THEM USING A NUCLEOPHILIC FILLER/PAN PRECURSON  
Carbon fibers made by a process using an organogel precursor that includes a nucleophilic filler and polyacrylonitrile; such a process which includes dry-jet wet spinning; and an article made from...
US20140120027 CONDUCTIVE FILM FORMATION METHOD, CONDUCTIVE FILM, INSULATION METHOD, AND INSULATION FILM  
The object of the present invention is to provide a high-resolution conductive pattern. A conductive film formation method for forming a conductive film in a prescribed pattern comprises: a step...
US20100254886 Carbon Nanotube Particulates, Compositions and Use Thereof  
A method for making carbon nanotube particulates involves providing a catalyst comprising catalytic metals, such as iron and molybdenum or metals from Group VIB or Group VIIIB elements, on a...
US20100247381 PROCESSES AND APPLICATIONS OF CARBON NANOTUBE DISPERSIONS  
Disclosed are copolymers of carbon nanotubes, as well as processes and applications of carbon nanotube dispersions. Carbon nanotube emulsions and related technology are also disclosed. The...
US20110058308 Metal Encapsulated Dendritic Carbon Nanostructure, Carbon Nanostructure, Process for Producing Metal Encapsulated Dendritic Carbon Nanostructure, Process for Producing Carbon Nanostructure, and Capacitor  
This invention provides a metal encapsulated dendritic carbon nanostructure comprising a dendritic carbon nanostructure comprising a branched carbon-containing rod-shaped or annular material and a...
US20100189626 HIGH EFFICIENT CARBON NANOTUBE SEPARATION METHOD  
Provided is a method of electrophoresis of carbon nanotube for separating them into metallic carbon nanotubes and semiconducting carbon nanotubes, and the method comprises a step of electrifying a...
US20140147372 NANOSTRUCTURES PATTERNED BY ELECTROSTATIC PRINTING  
An electrostatic printing method such as laser printing can be employed for cost-effective and scalable patterning of nanostructure growth catalysts onto growth substrates, either directly or via...
US20100247419 SOLID PHASE SYNTHESIZED CARBON NANO FIBER AND TUBE  
A carbon nano tube characterized by Bragg diffraction pattern peaks appearing at 2 theta (2θ)=26.5°, 44.5°, 51.8°. A carbon nano fiber is disclosed and characterized by Bragg diffraction pattern...
US20110171419 Electronic element having carbon nanotubes  
An electronic element includes a substrate, and a transparent conductive layer. The substrate includes a surface. The transparent conductive layer is formed on a surface of the substrate. The...
US20080279753 Method and Apparatus for Growth of High Quality Carbon Single-Walled Nanotubes  
Method and processes for synthesizing single-wall carbon nanotubes is provided. A carbon precursor gas is contacted with metal catalysts deposited on a support material. The metal catalysts are...
US20150197878 PROCESSES FOR PREPARING CARBON FIBERS USING SULFUR TRIOXIDE IN A HALOGENATED SOLVENT  
Disclosed here are processes for preparing carbonized polymers (preferably carbon fibers), comprising sulfonating a polymer with a sulfonating agent that comprises SO3 dissolved in a solvent to...
US20150152574 TWO-STEP SULFONATION PROCESS FOR THE CONVERSION OF POLYMER FIBERS TO CARBON FIBERS  
Disclosed herein are processes for preparing carbon fibers, comprising: sulfonating a polymer fiber with a sulfonating agent that is fuming sulfuric acid, sulfuric acid, chlorosulfonic acid, or a...
US20150132212 METHOD FOR FORMING CONFORMAL CARBON FILMS, STRUCTURES AND DEVICES INCLUDING A CONFORMAL CARBON FILM, AND SYSTEM OF FORMING SAME  
Methods of forming carbon films, structures and devices including the carbon films, and systems for forming the carbon films are disclosed. A method includes depositing a metal carbide film using...
US20100212727 APPARATUS AND METHODS FOR CONTINUOUSLY GROWING CARBON NANOTUBES AND GRAPHENE SHEETS  
A method for continuously growing carbon nanotubes may include providing a melt comprising carbon and a catalyst at a temperature between about 1,200 degrees Celsius and about 2,500 degrees...
US20150167201 PROCESSES FOR PREPARING CARBON FIBERS USING GASEOUS SULFUR TRIOXIDE  
Disclosed herein are processes for preparing carbonized polymers, such as carbon fibers, comprising: sulfonating a polymer with a sulfonating agent that comprises SO3 gas to form a sulfonated...
US20100126981 ELECTRICALLY CONDUCTIVE COATING COMPOSITION  
An electrically conductive coating composition is provided for use on aircraft and other substrate surfaces to prevent the formation of ice or to melt ice. The conductive coating composition may...
US20110315605 Pretreatment Method for the Synthesis of Carbon Nanotubes and Carbon Nanostructures from Coal and Carbon Chars  
Carbon nanostructures such as multiwalled carbon nanotubes are formed from electrolyzed coal char. The electrolyzed coal char is formed by forming a slurry of coal particles, metal catalyst and...
US20120262965 SINGLE-WALL CARBON NANOTUBE DIODES  
Methods and devices relating to diodes including single-wall carbon nanotubes (SWCNT) are disclosed according to embodiments of the present invention. According to one embodiment, a diode may...
US20130009514 CARBON NANOFIBER ACTUATOR  
An electroconductive film for an actuator is formed from a gel composition including carbon nanofibers, an ionic liquid, and a polymer. The carbon nanofibers are produced with an aromatic...
US20140054179 CARBON FIBERS, CATALYST FOR PRODUCTION OF CARBON FIBERS, AND METHOD FOR EVALUATION OF CARBON FIBERS  
Provided are carbon fibers with low metal ion elution amount without subjecting to high-temperature heat treatment, in which the metal ion may be sometimes precipitated on an electrode of...
US20110038788 CARBON-FIBER PRECURSOR FIBER, CARBON FIBER, AND PROCESSES FOR PRODUCING THESE  
A carbon fiber precursor fiber having a weight average molecular weight Mw(F) of 200,000 to 700,000 and a degree of polydispersity MZ(F)/Mw(F), wherein MZ(F) indicates Z-average molecular weight...
US20100278716 DISPERSION CONTAINING FLAME-RESISTANT POLYMER, FLAME-RESISTANT FIBER, AND CARBON FIBER  
A dispersion contains a flame-resistant polymer, which can improve shaping stability of the flame-resistant polymer during ejection from a die orifice, and physical stability of a shaped product...
US20100124529 Method of manufacturing carbon cylindrical structures and biopolymer detection device  
A method of manufacturing carbon cylindrical structures, as represented by carbon nanotubes, by growing them on a substrate using a chemical vapor deposition (CVD) method, comprising the steps of...
US20100226847 Method for direct, chirality-selective synthesis of semiconducting or metallic single-walled carbon nanotubes  
The present invention is a method comprising a direct chirality-selective nucleation and synthesis of single-walled carbon nanotubes from carbon-containing gases using catalytic nanoparticles of...

Matches 201 - 250 out of 358 < 1 2 3 4 5 6 7 8 >