| Patent Number |
Title Of Patent |
Date Issued |
| 7578941 |
Length-based liquid-liquid extraction of carbon nanotubes using a phase transfer catalyst |
August 25, 2009 |
| The present invention is generally directed to new liquid-liquid extraction methods for the length-based separation of carbon nanotubes (CNTs) and other 1-dimensional nanostructures. In some embodiments, such methods are directed to separating SWNTs on the basis of their length, wher |
| 7572426 |
Selective functionalization of carbon nanotubes |
August 11, 2009 |
| The present invention is directed toward methods of selectively functionalizing carbon nanotubes of a specific type or range of types, based on their electronic properties, using diazonium chemistry. The present invention is also directed toward methods of separating carbon nanotubes |
| 7527780 |
Functionalized single-wall carbon nanotubes |
May 5, 2009 |
| This invention is directed to making chemical derivatives of carbon nanotubes and to uses for the derivatized nanotubes, including making arrays as a basis for synthesis of carbon fibers. In one embodiment, this invention also provides a method for preparing single wall carbon nanotu |
| 7510695 |
Method for forming a patterned array of fullerene nanotubes |
March 31, 2009 |
| This invention relates generally to forming a patterned array of fullerene nanotubes. In one embodiment, a nanoscale array of microwells is provided on a substrate; a metal catalyst is deposited in each microwells; and a stream of hydrocarbon or CO feedstock gas is directed at the substr |
| 7494639 |
Purification of carbon nanotubes based on the chemistry of fenton's reagent |
February 24, 2009 |
| The present invention is directed to methods of purifying carbon nanotubes (CNTs). In general, such methods comprise the following steps: (a) preparing an aqueous slurry of impure CNT material; (b) establishing a source of Fe.sup.2+ ions in the slurry to provide a catalytic slurry; (c) |
| 7481989 |
Method for cutting fullerene nanotubes |
January 27, 2009 |
| This invention relates generally to cutting fullerene nanotubes. In one embodiment, the present invention provides for preparation of homogeneous populations of short fullerene nanotubes by cutting and annealing (reclosing) the nanotube pieces followed by fractionation. The cutting a |
| 7470417 |
Ozonation of carbon nanotubes in fluorocarbons |
December 30, 2008 |
| The present invention is generally directed to methods of ozonating CNTs in fluorinated solvents (fluoro-solvents), wherein such methods provide a less dangerous alternative to existing ozonolysis methods. In some embodiments, such methods comprise the steps of: (a) dispersing carbon |
| 7419651 |
Method for producing self-assembled objects comprising fullerene nanotubes and compositions ther |
September 2, 2008 |
| This invention relates generally to a method for producing self-assembled objects comprising fullerene nanotubes and compositions thereof. In one embodiment, the present invention involves a three-dimensional structure of derivatized fullerene nanotubes that spontaneously form. It includ |
| 7419624 |
Methods for producing composites of fullerene nanotubes and compositions thereof |
September 2, 2008 |
| This invention relates generally to a method for producing composites of fullerene nanotubes and compositions thereof. In one embodiment, the present invention involves a method of producing a composite material that includes a matrix and a fullerene nanotube material embedded within |
| 7390767 |
Method for producing a catalyst support and compositions thereof |
June 24, 2008 |
| This invention relates generally to a method for producing fullerene nanotube catalyst supports and compositions thereof. In one embodiment, fullerene nanotubes or fullerene nanotube structures can be employed as the support material. A transition metal catalyst is added to the fulle |
| 7390477 |
Fullerene nanotube compositions |
June 24, 2008 |
| This invention relates generally to a fullerene nanotube composition. The fullerene nanotubes may be in the form of a felt, such as a bucky paper. Optionally, the fullerene nanotubes may be derivatized with one or more functional groups. Devices employing the fullerene nanotubes of this |
| 7357906 |
Method for fractionating single-wall carbon nanotubes |
April 15, 2008 |
| The invention relates generally to dispersing and fractionating single-wall carbon nanotubes, which can be derivatized to facilitate fractionation, for example, by adding solubilizing moieties to the nanotubes. |
| 7354563 |
Method for purification of as-produced fullerene nanotubes |
April 8, 2008 |
| This invention relates generally to a fullerene nanotube purification process and more particularly to a purification process that comprises heating the fullerene nanotube-containing felt under oxidizing conditions to remove the amorphous carbon deposits and other contaminating mater |
| 7338915 |
Ropes of single-wall carbon nanotubes and compositions thereof |
March 4, 2008 |
| This invention provides a method of making single-wall carbon nanotubes by laser vaporizing a mixture of carbon and one or more Group VIII transition metals. Single-wall carbon nanotubes preferentially form in the vapor and the one or more Group VIII transition metals catalyzed growt |
| 7288238 |
Single-wall carbon nanotube alewives, process for making, and compositions thereof |
October 30, 2007 |
| The present invention involves alewives of highly aligned single-wall carbon nanotubes (SWNT), process for making the same and compositions thereof. The present invention provides a method for effectively making carbon alewives, which are discrete, acicular-shaped aggregates of align |
| 7264876 |
Polymer-wrapped single wall carbon nanotubes |
September 4, 2007 |
| The present invention relates to new compositions of matter and articles of manufacture comprising SWNTs as nanometer scale conducting rods dispersed in an electrically-insulating matrix. These compositions of matter have novel and useful electrical, mechanical, and chemical properti |
| 7262266 |
Copolymerization of polybenzazoles and other aromatic polymers with carbon nanotubes |
August 28, 2007 |
| The present invention is generally directed to the block copolymerization of rigid rod polymers with carbon nanotubes (CNTs), the CNTs generally being shortened, to form nanotube block copolymers. The present invention is also directed to fibers and other shaped articles made from the |
| 7252812 |
High-yield method of endohedrally encapsulating species inside fluorinated fullerene nanocages |
August 7, 2007 |
| This invention is directed to the fluorination (or derivatization with alternative chemical species) of fullerene carbon nanocages as an efficient way to (a) facilitate synthesis of endohedral complexes by a significant reduction or elimination of the barriers for the entry of guest- |
| 7205069 |
Membrane comprising an array of single-wall carbon nanotubes |
April 17, 2007 |
| 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 substantially two-dimensional array of a homogeneous population of single-walled nanotubes aggregated |
| 7204970 |
Single-wall carbon nanotubes from high pressure CO |
April 17, 2007 |
| The present invention discloses the process of supplying high pressure (e.g., 30 atmospheres) CO that has been preheated (e.g., to about 1000.degree. C.) and a catalyst precursor gas (e.g., Fe(CO).sub.5) in CO that is kept below the catalyst precursor decomposition temperature to a m |
| 7201887 |
Catalytic growth of single-and double-wall carbon nanotubes from metal particles |
April 10, 2007 |
| 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 formed that comprise s |
| 7150864 |
Ropes comprised of single-walled and double-walled carbon nanotubes |
December 19, 2006 |
| 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 formed that comprise s |
| 7138100 |
Process for making single-wall carbon nanotubes utilizing refractory particles |
November 21, 2006 |
| 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 initiate and grow single-wall carbon nanotubes using a carbon-containing feedstock in a |
| 7125534 |
Catalytic growth of single- and double-wall carbon nanotubes from metal particles |
October 24, 2006 |
| 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 nanotubes. Under certain conditions, there is no termination of nanotube growth, and production |
| 7125502 |
Fibers of aligned single-wall carbon nanotubes and process for making the same |
October 24, 2006 |
| The present invention involves fibers of highly aligned single-wall carbon nanotubes and a process for making the same. The present invention provides a method for effectively dispersing single-wall carbon nanotubes. The process for dispersing the single-wall carbon nanotubes compris |
| 7115864 |
Method for purification of as-produced single-wall carbon nanotubes |
October 3, 2006 |
| This invention relates generally to a single-wall carbon nanotube (SWNT) purification process and more particularly to a purification process that comprises heating the SWNT-containing felt under oxidizing conditions to remove the amorphous carbon deposits and other contaminating materia |
| 7108841 |
Method for forming a patterned array of single-wall carbon nanotubes |
September 19, 2006 |
| 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 is deposited in each microwells; and a stream of hydrocarbon or CO feedstock gas is di |
| 7105596 |
Methods for producing composites of single-wall carbon nanotubes and compositions thereof |
September 12, 2006 |
| This invention relates generally to a method for producing composites of single-wall carbon nanotubes (SWNTs) and compositions thereof. In one embodiment, the present invention involves a method of producing a composite material that includes a matrix and a carbon nanotube material e |
| 7097820 |
Continuous fiber of single-wall carbon nanotubes |
August 29, 2006 |
| This invention relates generally to carbon fiber produced from single-wall carbon nanotube (SWNT) molecular arrays. In one embodiment, the carbon fiber which comprises an aggregation of substantially parallel carbon nanotubes comprises more than one molecular array. Another embodiment of |
| 7090819 |
Gas-phase process for purifying single-wall carbon nanotubes and compositions thereof |
August 15, 2006 |
| The present invention relates to an all gas-phase process for the purification of single-wall carbon nanotubes and the purified single-wall carbon nanotube material. Known methods of single-wall carbon nanotube production result in a single-wall carbon nanotube product that contains |
| 7087207 |
Method for forming an array of single-wall carbon nanotubes in an electric field and composition |
August 8, 2006 |
| This invention relates generally to a forming an array of single-wall carbon nanotubes (SWNT) in an electric field and compositions thereof. In one embodiment, a purified bucky paper of single-wall carbon nanotubes is used as the starting material. Upon oxidative treatment of the bucky |
| 7074310 |
Method for separating single-wall carbon nanotubes and compositions thereof |
July 11, 2006 |
| The invention relates to a process for sorting and separating a mixture of (n, m) type single-wall carbon nanotubes according to (n, m) type. A mixture of (n, m) type single-wall carbon nanotubes is suspended such that the single-wall carbon nanotubes are individually dispersed. The |
| 7071406 |
Array of single-wall carbon nanotubes |
July 4, 2006 |
| This invention relates generally to forming an array of single-wall carbon nanotubes (SWNT). In one embodiment, a macroscopic molecular array is provided comprising at least about 10.sup.6 single-wall carbon nanotubes in generally parallel orientation and having substantially similar |
| 7070754 |
Ropes of single-wall carbon nanotubes |
July 4, 2006 |
| This invention provides a method of making single-wall carbon nanotubes by laser vaporizing a mixture of carbon and one or more Group VIII transition metals. Single-wall carbon nanotubes preferentially form in the vapor and the one or more Group VIII transition metals catalyzed growt |
| 7067098 |
Method for forming an array of single -wall carbon nanotubes and compositions thereof |
June 27, 2006 |
| This invention relates generally to forming an array of single-wall carbon nanotubes (SWNT) and compositions thereof. In one embodiment, a homogeneous population of SWNT molecules is used to produce a substantially two-dimensional array made up of single-walled nanotubes aggregated i |
| 7052668 |
Process utilizing seeds for making single-wall carbon nanotubes |
May 30, 2006 |
| 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 and grow single-wall carbon nanotubes. In one embodiment, multi-metallic catalyst precur |
| 7052666 |
Method for cutting single-wall carbon nanotubes |
May 30, 2006 |
| This invention relates generally to cutting single-wall carbon nanotubes (SWNT). In one embodiment, the present invention provides for preparations of homogemeous populations of short carbon nanotube molecules by cutting and annealing (reclosing) the nanotube pieces followed by fract |
| 7048999 |
Method for producing self-assembled objects comprising single-wall carbon nanotubes and composit |
May 23, 2006 |
| This invention relates generally to a method for producing self-assembled objects comprising single-wall carbon nanotubes (SWNTs) and compositions thereof. In one embodiment, the present invention involves a three-dimensional structure of derivatized single-wall nanotube molecules th |
| 7048903 |
Macroscopically manipulable nanoscale devices made from nanotube assemblies |
May 23, 2006 |
| Macroscopically manipulable nanoscale devices made from nanotube assemblies are disclosed. The article of manufacture comprises a macroscopic mounting element capable of being manipulated or observed in a macroscale environment, and a nanoscale nanotube assembly attached to the mount |
| 7041620 |
Method for producing a catalyst support and compositions thereof |
May 9, 2006 |
| This invention relates generally to a method for producing single-wall carbon nanotube (SWNT) catalyst supports and compositions thereof. In one embodiment, SWNTs or SWNT structures can be employed as the support material. A transition metal catalyst is added to the SWNT. In a prefer |
| 7029646 |
Method for cutting single-wall carbon nanotubes through fluorination |
April 18, 2006 |
| A method for cutting single-wall carbon nanotubes involves partially fluorinating single-wall carbon nanotubes and pyrolyzing the partially fluorinated nanotubes in an inert atmosphere or vacuum up to about 1000.degree. C. The nanotubes are optionally purified before cutting. The par |
| 7008604 |
Method for cutting nanotubes |
March 7, 2006 |
| This invention relates generally to cutting single-wall carbon nanotubes (SWNT). In one embodiment, the present invention provides for preparation of homogeneous populations of short carbon nanotube molecules by cutting and annealing (reclosing) the nanotube pieces followed by fractionat |
| 7008563 |
Polymer-wrapped single wall carbon nanotubes |
March 7, 2006 |
| The present invention relates to new compositions of matter and articles of manufacture comprising SWNTs as nanometer scale conducting rods dispersed in an electrically-insulating matrix. These compositions of matter have novel and useful electrical, mechanical, and chemical properti |
| 6986876 |
Method for forming composites of sub-arrays of single-wall carbon nanotubes |
January 17, 2006 |
| This invention relates generally to forming arrays of single-wall carbon nanotubes (SWNT). In one embodiment, the present invention involves forming a macroscopic molecular array of tubular carbon molecules, said method comprising the step of assembling subarrays of up to 10.sup.6 si |
| 6979709 |
Continuous fiber of single-wall carbon nanotubes |
December 27, 2005 |
| This invention relates generally to carbon fiber produced from single-wall carbon nanotube (SWNT) molecular arrays. In one embodiment, the present invention involves a macroscopic carbon fiber comprising at least 10.sup.6 signal-wall carbon nanotubes in generally parallel orientation. |
| 6969504 |
Electrical conductors comprising single-wall carbon nanotubes |
November 29, 2005 |
| The present invention concerns electrical conductors comprising armchair single-wall carbon nanotubes. Such electrical conductors made by the invention are metallic, i.e., they will conduct electrical charges with a relatively low resistance. The amount of armchair single-wall carbon |
| 6949237 |
Method for growing single-wall carbon nanotubes utlizing seed molecules |
September 27, 2005 |
| This invention relates generally to a method for growing single-wall carbon nanotube (SWNT) from seed molecules. The supported or unsupported SWNT seed materials can be combined with a suitable growth catalyst by opening SWNT molecule ends and depositing a metal atom cluster. In one embo |
| 6939525 |
Method of forming composite arrays of single-wall carbon nanotubes and compositions thereof |
September 6, 2005 |
| This invention relates generally to forming arrays of single-wall carbon nanotubes (SWNT) and compositions thereof. In one embodiment, the present invention involves forming an array from more than one separately prepared molecular arrays or templates to prepare a composite structure. Th |
| 6936233 |
Method for purification of as-produced single-wall carbon nanotubes |
August 30, 2005 |
| This invention relates generally to a single-wall carbon nanotube (SWNT) purification process and more particularly to a purification process that comprises heating the SWNT-containing felt under oxidizing conditions to remove the amorphous carbon deposits and other contaminating materia |
| 6913789 |
Process utilizing pre-formed cluster catalysts for making single-wall carbon nanotubes |
July 5, 2005 |
| 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 and grow single-wall carbon nanotubes. In one embodiment, multi-metallic catalyst precur |
