Abstract: Methods of forming a multi walled or single walled carbon nanotube with one or more amine groups on the surface thereof are described. The method includes reacting a carbon nanotube having a hydroxyl surface group or a carboxyl surface group with ammonia in the presence of a catalyst at a temperature of about 300° C. or more.

Abstract: The present invention is related to ternary metal transition metal non-oxide nano-particle compositions, methods for preparing the nano-particles, and applications relating in particular to the use of said nano-particles in dispersions, electrodes and capacitors. The nano-particle compositions of the present invention can include a precursor which includes at least one material selected from the group consisting of alkoxides, carboxylates and halides of transition metals, the material including transition metal(s) selected from the group consisting of vanadium, niobium, tantalum, tungsten and molybdenum.

Abstract: A carbon nanotube-conductive polymer composite includes a plurality of CNTs and conductive polymer fibers. The CNTs are connected with each other to form a network. The conductive polymer fibers adhere to surfaces of the CNTs and/or tube walls of the CNTs.

Abstract: 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 distilled bromine from the carbon nanotubes. Purified carbon nanotubes having an iron content from about 2.5 to about 3.5 by weight that are substantially free of derivatization at the ends and defect sites are made available via this method.

Abstract: The invention provides an adduct comprising a carbon nanotube and a transitional metal coordination complex, wherein the metal of the complex is attached by a covalent linkage to at least one oxygen moiety on the nanotube.

Abstract: A thermoplastic composite material, which includes a thermoplastic, organic polymer; and a plurality of carbon nanotubes, is provided. The thermoplastic composite material exhibits a bulk volume resistivity of about 103 ?-cm (ohm cm) to 1010 ?-cm at 5,000 volts. Such thermoplastic composite materials may find utility in applications that require the thermoplastic to be capable of withstanding high voltage spikes, as would be encountered during a lightning strike.

Abstract: The present invention is related to a short carbon nanotube for a catalyst support. In particular, the short carbon nanotube may be opened at both ends, a length of less than about 300 nm, and an aspect ratio in the range of about 1 to about 15. The short carbon nanotube has a broad surface area and better electric conductivity and is opened at both ends, thereby impregnating a metallic catalyst into the inner side of the carbon nanotube. Also, a catalyst impregnated carbon nanotube has a broad effective specific surface area, and thus, has an improved efficiency of catalyst utilization, can reduce an amount of the catalyst used and can efficiently diffuse a fuel. Accordingly, when catalyst impregnated carbon nanotube is used in a fuel cell, etc., improvements can be made in the pricing, power density of an electrode, and energy density of a fuel cell.

Abstract: The present invention contemplates a variety of methods and techniques for fabricating an improved carbon nanotube (CNT) device such as an AFM probe. A CNT is first formed on a desired location such as a substrate. The CNT and substrate are then covered with a protective layer through a CVD or other suitable process. Then a length of the CNT is exposed through etching or other suitable process, the exposed length being formed to a length suitable for a desired application for the CNT device.

Abstract: The present invention relates to dispersions of nanostructured carbon in organic solvents containing alkyl amide compounds and/or diamide compounds. The invention also relates to methods of dispersing nanostructured carbon in organic solvents and methods of mobilizing nanostructured carbon. Also disclosed are methods of determining the purity of nanostructured carbon.

Abstract: Disclosed herein are an electrically conductive thermoplastic resin composition and a plastic article including the same. The electrically conductive thermoplastic resin composition comprises about 80 to about 99.9 parts by weight of a thermoplastic resin, about 0.1 to about 10 parts by weight of carbon nanotubes, about 0.1 to about 10 parts by weight of an impact modifier, based on a total of about 100 parts by weight of the thermoplastic resin and the carbon nanotubes, and about to about 10 parts by weight of conductive metal oxide, based on a total of about 100 parts by weight of the thermoplastic resin and the carbon nanotubes.

Abstract: A method is described for preparing carbon nanotube dispersions in organic solvents such as chloroform and methyl ethyl ketone. Structures resulting from organic dispersions are also disclosed. The dispersing agents used in this method comprise long chain hydrocarbons, halogen-substituted hydrocarbons, fluorocarbons, or a mixture of hydrocarbons, halogen-substituted hydrocarbons, and fluorocarbons; wherein the hydrocarbons, halogen-substituted hydrocarbons and fluorocarbons have from 6 to 40 carbons in a chain, at least one alkene or alkyne moiety, and at least one pendant carboxylic acid, phosphonic acid, and/or sulfonic acid group or an ester of these acids.

Abstract: The present invention relates to methods for fabricating a cathode emitter and a zinc oxide anode for a field emission device to improve the adhesion between emitters and a substrate and enhance the luminous efficiency of a zinc oxide thin film so that the disclosed methods can be applied in displays and lamps. In comparison to a conventional method for fabricating a field emission device, the method according to the present invention can reduce the cost and time for manufacture and is suitable for fabricating big-sized products. In addition, the present invention further discloses a field emission device comprising a zinc oxide/nano carbon material cathode, a zinc oxide anode and a spacer.

Abstract: 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 structure in a post-flame region of the flame. Residence time is selected to favor filamentary structure growth.

Abstract: The present invention relates generally to the field of nanotechnology, carbon nanotubes and, more specifically, to a method and system for nano-pumping media through carbon nanotubes. One preferred embodiment of the invention generally comprises: method for nano-pumping, comprising the following steps: providing one or more media; providing one or more carbon nanotubes, the one or more nanotubes having a first end and a second end, wherein said first end of one or more nanotubes is in contact with the media; and creating surface waves on the carbon nanotubes, wherein at least a portion of the media is pumped through the nanotube.

Abstract: The present disclosure describes antennas based on a conductive polymer composite as replacements for metallic antennas. The antennas include a non-conductive support structure and a conductive composite layer deposited on the non-conductive support structure. The conductive composite includes a plurality of carbon nanotubes and a polymer. Each of the plurality of carbon nanotubes is in contact with at least one other of the plurality of carbon nanotubes. The conductive composite layer is operable to receive at least one electromagnetic signal. Other various embodiments of the antennas include a hybrid antenna structure wherein a metallic antenna underbody replaces the non-conductive support structure. In the hybrid antennas, the conductive composite layer acts as an amplifier for the metallic antenna underbody. Methods for producing the antennas and hybrid antennas are also disclosed. Radios, cellular telephones and wireless network cards including the antennas and hybrid antennas are also described.

Abstract: Ultralong carbon nanotubes can be formed by placing a secondary chamber within a reactor chamber to restrict a flow to provide a laminar flow. Inner shells can be successively extracted from multi-walled carbon nanotubes (MWNTs) such as by applying a lateral force to an elongated tubular sidewall at a location between its two ends. The extracted shells can have varying electrical and mechanical properties that can be used to create useful materials, electrical devices, and mechanical devices.

Abstract: The present invention relates to a continuous method for functionalizing a carbon nanotube, and more specifically, to a continuous method for functionalizing a carbon nanotube by feeding functional compounds having one or more functional group into a functionalizing reactor into which a carbon nanotube mixture including oxidizer is fed under a pressure of 50 to 400 atm and a temperature of 100 to 600° C. to a subcritical water or supercritical water condition of a pressure of 50 to 40 atm by using a continuously functionalizing apparatus to obtain the functionalized products, such that the functional group of the functional compound can be easily introduced to the carbon nanotube, thereby increasing the functionalized effect of the carbon nanotube and increasing the dispersibility accordingly.

Abstract: An aligned double-walled carbon nanotube bulk structure composed of plural aligned double-walled carbon nanotubes and having a height of 0.1 ?m or more and a double-walled carbon nanotube are produced by chemically vapor depositing (CVD) a carbon nanotube in the presence of a metal catalyst with controlled particle size and thickness, preferably in the presence of moisture. According to this, it is possible to provide a double-walled nanotube which is free from inclusion of the catalyst, has high purity, is easy to control the alignment and growth, is able to achieve the fabrication through the formation of a bulk structure and has excellent electron emission characteristic (particularly, a double-walled carbon nanotube bulk structure) and also to provide a production technology thereof.

Abstract: Fluid compositions that have enhanced thermal conductivity, up to 250% greater than their conventional analogues, and methods of preparation for these fluids are identified. The compositions contain at a minimum, a fluid media such as oil or water, and a selected effective amount of carbon nanomaterials necessary to enhance the thermal conductivity of the fluid. One of the preferred carbon nanomaterials is a high thermal conductivity graphite, exceeding that of the neat fluid to be dispersed therein in thermal conductivity, and ground, milled, or naturally prepared with mean particle size less than 500 nm, and preferably less than 200 nm, and most preferably less than 100 nm. The graphite is dispersed in the fluid by one or more of various methods, including ultrasonication, milling, and chemical dispersion. Carbon nanotube with graphitic structure is another preferred source of carbon nanomaterial, although other carbon nanomaterials are acceptable.

Abstract: The invention relates to epoxy functionalized carbon nanotubes (CNTs) and methods of forming the same, and more particularly to inclusion of the epoxy functionalized CNTs as fillers in electronic applications, e.g., semiconductor devices and device packaging. More particularly, CNT-based epoxy resin composites are employed as materials for electronic packaging applications and the inclusion of CNTs as fillers chemically linked to epoxy resin macromolecules. The resulting materials showed improved chemical-physical features in terms of mechanical, thermal and electrical properties.

Abstract: A sensor system that detects a current representative of a compound in a liquid mixture features a multi or three electrode strip adapted for releasable attachment to signal readout circuitry. The strip comprises an elongated support which is preferably flat adapted for releasable attachment to the readout circuitry; a first conductor and a second and a third conductor each extend along the support and comprise means for connection to the circuitry. The circuit is formed with single-walled or multi walled nanotubes conductive traces and may be formed from multiple layers or dispersions containing, carbon nanotubes, carbon nanotubes/antimony tin oxide, carbon nanotubes/platinum, or carbon nanotubes/silver or carbon nanotubes/silver-chloride.

Abstract: A process for the preparation of modified nanoclay in one case comprises the steps of providing an organoclay, dispersing the organoclay in a solvent or mixture of solvents and/or surfactant, providing nariotubes or nanowires, dispersing the nanotubes or nanowires in a solvent or mixture of solvents and/or surfactant, and mixing the organoclay suspension with the nanotube and/or nanowire suspension. The organoclays modified with nanowires or nanotubes provide nanoadditives, which have enhanced thermal stability and electrical conductivity properties. The nanoadditive may include an inherently conducting polymer such as polyaniline. Also provided are polymer composites including the nanoadditive.

Abstract: A thin film transistor includes a source electrode, a drain electrode, a semiconducting layer, and a gate electrode. The drain electrode is spaced from the source electrode. The semiconducting layer is connected to the source electrode and the drain electrode. The gate electrode is insulated from the source electrode, the drain electrode, and the semiconducting layer by an insulating layer. The semiconducting layer comprises at least two stacked carbon nanotube films, and each carbon nanotube film comprises a plurality of carbon nanotubes primarily oriented along a same direction, and the carbon nanotubes in at least two adjacent carbon nanotube films are aligned along different directions.

Abstract: Chemically modified carbon nanotubes composed of carbon nanotubes (such as multiwall carbon nanotubes) having carboxyl groups on the surface thereof and polymeric aniline (such as 3- to 300-meric aniline) bonding thereto through the amide linkage. The chemically modified carbon nanotubes exhibit good affinity with organic solvents and readily disperse into organic solvents.

Abstract: The present disclosure provides an improved membrane or substrate having carbon nanotubes introduced and/or immobilized therein, and an improved method for introducing and/or immobilizing carbon nanotubes in membranes or substrates. More particularly, the present disclosure provides for improved systems and methods for fabricating membranes or substrates having carbon nanotubes immobilized therein. In one embodiment, the present disclosure provides for systems and methods for introducing and/or immobilizing functionalized carbon nanotubes into the pore structure of a polymeric membrane or substrate, thereby dramatically improving the performance of the polymeric membrane or substrate. In exemplary embodiments, the present disclosure provides for systems and methods for the fabrication of nanotube immobilized membranes by incorporating CNTs in a membrane or substrate.

Abstract: A thin film transistor includes a source electrode, a drain electrode, a semiconducting layer, and a gate electrode. The drain electrode is spaced from the source electrode. The semiconducting layer is connected to the source electrode and the drain electrode. The gate electrode is insulated from the source electrode, the drain electrode, and the semiconducting layer by an insulating layer. The semiconducting layer includes a carbon nanotube layer, and the carbon nanotube layer comprises a plurality of semiconducting carbon nanotubes.

Abstract: A thin film transistor includes a source electrode, a drain electrode, a semiconducting layer, and a gate electrode. The drain electrode is spaced from the source electrode. The semiconducting layer is connected to the source electrode and the drain electrode. The gate electrode is insulated from the source electrode, the drain electrode, and the semiconducting layer by an insulating layer. The semiconducting layer includes at least two stacked carbon nanotube films. Each carbon nanotube film includes an amount of carbon nanotubes. At least a part of the carbon nanotubes of each carbon nanotube film are aligned along a direction from the source electrode to the drain electrode.

Abstract: Polymer composition (C) comprising: at least one poly(aryl ether ketone) (P1), at least one poly(biphenyl ether sulfone) (P2), and at least one fibrous carbon nanofiller (N). Article or part of an article comprising the polymer composition (C).

Abstract: The present invention relates to composite electrodes for electrochemical devices, particularly to carbon nanotube composite electrodes for high performance electrochemical devices, such as ultracapacitors.

Abstract: An aligned carbon nanotube bulk aggregate of the invention is characterized by consisting of plural carbon nanotubes aligned in a predetermined direction and having a density of 0.2 to 1.5 g/cm3. The carbon nanotube bulk aggregate can be produced by a process of growing carbon nanotubes by chemical vapor deposition (CVD) in the presence of a metal catalyst which comprises growing carbon nanotubes in aligned state in a reaction atmosphere, soaking the obtained carbon nanotubes with a liquid, and then drying the resulting nanotubes. Thus, an aligned carbon nanotube bulk aggregate having a density of 0.2 to 1.5 g/cm3 can be obtained. The invention provides a high density and a high hardness which were not attained in the prior art, and a process for the production of the same.

Abstract: The present invention relates to a continuous method and apparatus for functionalizing a carbon nanotube, and more specifically, to a continuous method and apparatus for functionalizing a carbon nanotube including preparing a functionalized product by functionalizing a carbon nanotube solution including nitro compound according to the following Chemical Formula 1 and carbon nanotube mixture including an oxidizer for forming nitric acid under subcritical water or supercritical water condition of 50 to 400 atm and a continuous method and apparatus for functionalizing a carbon nanotube under subcritical water or supercritical water condition using nitro compound without using strong acids or strong bases. R—(NOx)y ??[Chemical Formula 1] wherein Chemical Formula 1, R is alkyl group of C1 to C7 or aryl group of C6 to C20 and x and y are integers of 1 to 3 independently.

Abstract: An interconnect structure includes: an interlayer insulating film formed on a lower metal layer; a contact hole formed in the interlayer insulating film to expose the lower metal layer; a plurality of carbon nanotubes formed on a bottom of the contact hole; an wiring metal filled in the contact hole to fill gap between the plurality of carbon nanotubes; and an upper wiring formed above the contact hole. A Ti layer is formed between the plurality of carbon nanotubes and the upper wiring.

Abstract: Disclosed herein are an electrically conductive thermoplastic resin composition and a plastic article. The electrically conductive thermoplastic resin composition comprises about 80 to about 99% by weight of a thermoplastic resin, about 0.1 to about 10% by weight of carbon nanotubes and about 0.1 to about 10% by weight of an organo nanoclay.

Abstract: A method for producing carbon nanotubes uses a polymer as a raw material to undergo in situ thermal decomposition. The method includes steps of mixing the polymer and metallic catalyst through a multiple heating stage process of in-situ thermal decomposition to carbonize the polymer and release carbon elements to produce carbon nanotubes. Advantages of the present invention include easy to prepare, low temperature in manipulation, low production cost, and high safety.

Abstract: A thermal electron emitter includes at least one carbon nanotube twisted wire and a plurality of electron emission particles mixed with the twisted wire. The carbon nanotube twisted wire comprises a plurality of carbon nanotubes. A work function of the electron emission particles is lower than the work function of the carbon nanotubes. A thermal electron emission device using the thermal electron emitter is also related.

Abstract: The present invention is directed to methods of integrating carbon nanotubes into epoxy polymer composites via chemical functionalization of carbon nanotubes, and to the carbon nanotube-epoxy polymer composites produced by such methods. Integration is enhanced through improved dispersion and/or covalent bonding with the epoxy matrix during the curing process. In general, such methods involve the attachment of chemical moieties (i.e., functional groups) to the sidewall and/or end-cap of carbon nanotubes such that the chemical moieties react with either the epoxy precursor(s) or the curing agent(s) (or both) during the curing process. Additionally, in some embodiments, these or additional chemical moieties can function to facilitate dispersion of the carbon nanotubes by decreasing the van der Waals attractive forces between the nanotubes.

Abstract: Disclosed is a composite material comprising PPTA (poly-p-phenyleneterephthalamide) and nanotubes having an aspect ratio of at least 100 and a cross-sectional diameter of 5 nm or less, the composite material containing up to 12 wt. % of nanotubes, obtainable by adding the nanotubes to sulfuric acid, decreasing the temperature to solidify the mixture, adding PPTA to the solid mixture, heating to above the solidifying point and mixing the mixture, and spinning, casting, or molding the mixture to the composite material.

Abstract: Communication to or from a nanodevice is provided with a nanostructure-based antenna, preferably formed from, but not limited to, a single wall nanotube (SWNT). Other nanostructure-based antennas include double walled nanotubes, semiconducting nanowires, metal nanowires and the like. The use of a nanostructure-based antenna eliminates the need to provide a physical communicative connection to the nanodevice, while at the same time allowing communication between the nanodevice and other nanodevices or outside systems, i.e., systems larger than nanoscale such as those formed from semiconductor fabrication processes such as CMOS, GaAs, bipolar processes and the like.

Abstract: The present invention is directed to materials for the decontamination of fluids and methods of use thereof. The material and methods find applications in the decontamination of intermediates, chemical contaminants, a biological contaminants, wastewater, industrial effluents, municipal or domestic effluents, agrochemicals, herbicides and/or pharmaceuticals.

Abstract: An exemplary method for producing carbon nanotubes includes the following steps. First, a reaction chamber is provided. The reaction chamber defines a reaction region therein. Second, a substrate having a catalyst layer formed thereon is provided. Third, the substrate is disposed in the reaction chamber. Fourth, a carbon-containing reactive gas is introduced into the reaction chamber so as to grow carbon nanotubes using a chemical vapor deposition method. The substrate is moved along a direction opposite to a growth direction of the carbon nanotubes whilst growing the carbon nanotubes, whereby tips of the carbon nanotubes are kept in the reaction region while the substrate is moved.

Abstract: Carbon nanotube apparatus, and methods of carbon nanotube modification, include carbon nanotubes having locally modified properties with the positioning of the modifications being controlled. More specifically, the positioning of nanotubes on a substrate with a deposited substance, and partially vaporizing part of the deposited substance etches the nanotubes. The modifications of the carbon nanotubes determine the electrical properties of the apparatus and applications such as a transistor or Shockley diode. Other applications of the above mentioned apparatus include a nanolaboratory that assists in study of merged quantum states between nanosystems and a macroscopic host system.

Abstract: This invention provides photoablation—based processing techniques and materials strategies for making, assembling and integrating patterns of materials for the fabrication of electronic, optical and opto-electronic devices. Processing techniques of the present invention enable high resolution and/or large area patterning and integration of porous and/or nano- or micro-structured materials comprising active or passive components of a range of electronic devices, including integrated circuits (IC), microelectronic and macroelectronic systems, microfluidic devices, biomedical devices, sensing devices and device arrays, and nano- and microelectromechanical systems.

Abstract: 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 preferentially reacting the metallic carbon nanotubes with an acid functional aryldiazonium salt to form a substantially fully functionalized metallic nanotubes which can be easily separated from the unfunctionalized semiconducting carbon nanotubes.

Abstract: A seal is formed from one or more elastomeric materials having a low glass transition temperature for high pressure, and both high and low temperature sealing applications. In an exemplary embodiment, the glass transition temperature (Tg) of the material may be ?35° C. or lower. The seal is adapted to repeatedly form and maintain a seal across a temperature range from 0° C. or lower to +122° C. or greater at pressures up to 15,000 p.s.i.g. or greater. The invention has numerous applications, such as for land-based use, marine surface and marine subsea uses. An anti-extrusion device may circumscribe the upper and lower edges of the material body. The invention also comprises fabrication methods for elastomer or polymeric seals.

Abstract: Surface films, paints, or primers can be used in preparing aircraft structural composites that may be exposed to lightning strikes. Methods for making and using these films, paints or primers are also disclosed. The surface film can include a thermoset resin or polymer, e.g., an epoxy resin and/or a thermoplastic polymer, which can be cured, bonded, or painted on the composite structure. Low-density electrically conductive materials are disclosed, such as carbon nanofiber, copper powder, metal coated microspheres, metal-coated carbon nanotubes, single wall carbon nanotubes, graphite nanoplatelets and the like, that can be uniformly dispersed throughout or on the film. Low density conductive materials can include metal screens, optionally in combination with carbon nanofibers.

Abstract: A liquid crystal display screen includes a first electrode plate, a first alignment layer, a liquid crystal layer, a second alignment layer, and a second electrode plate opposite to the first electrode plate. The liquid crystal layer is sandwiched between the first electrode plate and the second electrode plate. The first alignment layer and the second alignment layer are respectively disposed on the first electrode plate and the second electrode plate, and face the liquid crystal layer. The first alignment layer and the second alignment layer respectively include a plurality of parallel first grooves and second grooves perpendicular to the first grooves formed thereon facing the liquid crystal layer. Furthermore, the first alignment layer and the second alignment layer respectively include a plurality of parallel and spaced carbon nanotube structures.

Abstract: The present invention relates to a dispersion, consisting of a dispersing liquid and at least one solid substance that is distributed in the dispersing liquid. In order to obtain a dispersion with particularly good properties, it is provided that the dispersing liquid has an aqueous and/or non-aqueous base, that the at least one solid substance is formed of graphite and/or of carbon nanomaterial and/or of coke and/or of porous carbon, and that the at least one solid substance is distributed homogeneously and stably in the dispersing liquid. A method for the production of such a dispersion is provided such that the dispersion is produced by applying a strong accelerating voltage. In addition, various advantageous uses of such a dispersion are indicated.

Abstract: The present invention relates to covalently bonded fullerene-functionalized carbon nanotubes (CBFFCNTs), a method and an apparatus for their production and to their end products. CBFFCNTs are carbon nanotubes with one or more fullerenes or fullerene based molecules covalently bonded to the nanotube surface. They are obtained by bringing one or more catalyst particles, carbon sources and reagents together in a reactor.

Abstract: Separation device of molecules and production method thereof. A molecule is separated from a liquid sample containing said molecule and at least one additional molecule having a larger hydrodynamic diameter than the hydrodynamic diameter of the molecule to be separated, by means of a separation device comprising a substrate, at least one circulation channel arranged in said substrate, and at least one nanotube associated with said molecule to be separated and formed on a free surface of the substrate. Separation is achieved by means of the internal channel of a nanotube, such as a carbon nanotube, presenting an effective diameter chosen in predetermined and controlled manner. The effective diameter of the internal channel is chosen such as to be larger than the hydrodynamic diameter of the molecule to be separated and smaller than the hydrodynamic diameter of the additional molecules of larger hydrodynamic diameters.

Abstract: Embodiments described herein provide for VSD material that has superior characteristics for its use as an integral structural component of a device.