| Patent Number |
Title Of Patent |
Date Issued |
| 7413723 |
Methods of oxidizing multiwalled carbon nanotubes |
August 19, 2008 |
| Methods of oxidizing multiwalled carbon nanotubes are provided. The multiwalled carbon nanotubes are oxidized by contacting the carbon nanotubes with gas-phase oxidizing agents such as CO.sub.2, O.sub.2, steam, N.sub.2O, NO, NO.sub.2, O.sub.3, and ClO.sub.2. Near critical and supercr |
| 7396798 |
Method for preparing catalyst supports and supported catalysts from single walled carbon nanotub |
July 8, 2008 |
| A new method for preparing a supported catalyst is herein provided. A carbon nanotube structure such as a rigid porous structure is formed from single walled carbon nanotubes. A metal catalyst is then loaded or deposited onto the carbon nanotube structure. The loaded carbon nanotube |
| 7393514 |
Carbide nanofibrils and method of making same |
July 1, 2008 |
| A plurality of carbide, such as silicon carbide, tungsten carbide, etc., nanofibrils predominantly having diameters substantially less than about 100 nm and a method for making such carbide nanofibrils. The method includes the steps of: heating a plurality of carbon nanotubes or nano |
| 7198772 |
Methods and catalysts for the manufacture of carbon fibrils |
April 3, 2007 |
| 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 made by coprecipitating a compound of a metal having fibril-forming catalytic properties a |
| 7144564 |
Process for producing single wall nanotubes using unsupported metal catalysts and single wall na |
December 5, 2006 |
| 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 carbon atoms and only H, |
| 7097821 |
Process for producing single wall nanotubes using unsupported metal catalysts and single wall na |
August 29, 2006 |
| 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 carbon atoms and only H, |
| 7074379 |
Process for producing single wall nanotubes using unsupported metal catalysts and single wall na |
July 11, 2006 |
| 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 carbon atoms and only H, |
| 6960389 |
Rigid porous carbon structures, methods of making, methods of using and products containing same |
November 1, 2005 |
| This invention relates to rigid porous carbon structures and to methods of making same. The rigid porous structures have a high surface area which are substantially free of micropores. Methods for improving the rigidity of the carbon structures include causing the nanofibers to form bond |
| 6841508 |
Carbide and oxycarbide based compositions, rigid porous structures including the same, methods o |
January 11, 2005 |
| Compositions including oxycarbide-based nanorods and/or carbide-based nanorods and/or carbon nanotubes bearing carbides and oxycarbides and methods of making the same are provided.Rigid porous structures including oxycarbide-based nanorods and/or carbide based nanorods and/or carbon nano |
| 6828282 |
Lubricants containing carbon nanotubes |
December 7, 2004 |
| Improved fuel compositions containing carbon nanotubes in from 0.01% to 30.0% by weight of fuel have improved burn rate and other valuable properties. Improved lubricant compositions containing carbon nanotubes in from 0.01 to 20.0% by weight of lubricant have improved viscosity and |
| 6827919 |
Process for producing single wall nanotubes using unsupported metal catalysts and single wall na |
December 7, 2004 |
| 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 carbon atoms and only H, O, |
| 6770589 |
Methods and catalysts for the manufacture of carbon fibrils |
August 3, 2004 |
| 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 made by coprecipitating a compound of a metal having fibril-forming catalytic properties and a |
| 6699454 |
Catalysts for the manufacture of carbon fibrils and methods of use thereof |
March 2, 2004 |
| A method for the manufacture of a catalyst for the production of carbon fibrils comprising contacting a fibril-forming catalyst or precursors of a fibril-forming catalyst with an effective amount of a surfactant and/or polyol.A catalyst for the production of carbon fibrils formed by cont |
| 6696387 |
Catalysts for the manufacture of carbon fibrils and methods of use thereof |
February 24, 2004 |
| A catalyst for the production of carbon fibrils and a method for the manufacture of such a catalyst comprising contacting a fibril-forming catalyst or precursors of a fibril-forming catalyst with an effective amount of a surfactant and/or polyol. The improved carbon fibrils or carbon |
| 6665169 |
Graphitic nanofibers in electrochemical capacitors |
December 16, 2003 |
| Graphitic nanofibers, which include tubular fullerenes (commonly called "buckytubes"), nanotubes and fibrils, which are functionalized by chemical substitution, are used as electrodes in electrochemical capacitors. The graphitic nanofiber based electrode increases the performance of the |
| 6514897 |
Carbide and oxycarbide based compositions, rigid porous structures including the same, methods o |
February 4, 2003 |
| The present invention relates to compositions and rigid porous structures that contain nanorods having carbides and/or oxycarbides and methods of making and using such compositions and such rigid porous structures. The compositions and rigid porous structures can be used either as cataly |
| 6432866 |
Rigid porous carbon structures, methods of making, methods of using and products containing same |
August 13, 2002 |
| This invention relates to rigid porous carbon structures and to methods of making same. The rigid porous structures have a high surface area which are substantially free of micropores. Methods for improving the rigidity of the carbon structures include causing the nanofibers to form bond |
| 6419717 |
Carbon nanotubes in fuels |
July 16, 2002 |
| Improved fuel compositions containing carbon nanotubes in from 0.01% to 30.0% by weight of fuel have improved bum rate and other valuable properties. Improved lubricant compositions containing carbon nanotubes in from 0.01 to 20.0% by weight of lubricant have improved viscosity and o |
| 6414836 |
Electrochemical capacitors having electrodes with diverse redox potentials |
July 2, 2002 |
| Graphitic nanofibers, which include tubular fullerenes (commonly called "buckytubes"), nanotubes and fibrils, which are functionalized by chemical substitution, are used as electrodes in electrochemical capacitors. The graphitic nanofiber based electrode increases the performance of the |
| 6358878 |
Carbon fibril-forming metal catalysts |
March 19, 2002 |
| A fibril aggregate that includes a multiplicity of carbon fibrils whose longitudinal axes have substantially the same relative orientation, each of the fibrils characterized as having graphitic layers that are substantially parallel to its longitudinal axis and being free of a contin |
| 6294144 |
Methods and catalysts for the manufacture of carbon fibrils |
September 25, 2001 |
| 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 made by coprecipitating a compound of a metal having fibril-forming catalytic properties and a |
| 6221330 |
Process for producing single wall nanotubes using unsupported metal catalysts |
April 24, 2001 |
| 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 carbon atoms and only H, O, |
| 6203814 |
Method of making functionalized nanotubes |
March 20, 2001 |
| Graphitic nanotubes, which includes tubular fullerenes (commonly called "buckytubes") and fibrils, which are functionalized by chemical substitution or by adsorption of functional moieties. More specifically the invention relates to graphitic nanotubes which are uniformly or non-unif |
| 6159892 |
Catalyst supports, supported catalysts and methods of making and using the same |
December 12, 2000 |
| A supported catalyst comprising a carbon fibril aggregate and a catalytically effective amount of a catalyst supported therein, a process for performing a catalytic reaction in fluid phase using the supported catalyst and a process for making the supported catalyst are disclosed. |
| 6143689 |
Methods and catalysts for the manufacture of carbon fibrils |
November 7, 2000 |
| 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 made by coprecipitating a compound of a metal having fibril-forming catalytic properties and a |
| 6099965 |
Rigid porous carbon structures, methods of making, methods of using and products containing same |
August 8, 2000 |
| This invention relates to rigid porous carbon structures and to methods of making same. The rigid porous structures have a high surface area which are substantially free of micropores. Methods for improving the rigidity of the carbon structures include causing the nanofibers to form bond |
| 6099960 |
High surface area nanofibers, methods of making, methods of using and products containing same |
August 8, 2000 |
| A high surface area carbon nanofiber is provided. The carbon nanofiber has an outer surface on which a porous high surface area layer is formed. A method of making the high surface area carbon nanofiber includes pyrolizing a polymeric coating substance provided on the outer surface of |
| 6031711 |
Graphitic nanofibers in electrochemical capacitors |
February 29, 2000 |
| Graphitic nanofibers, which include tubular fullerenes (commonly called "buckytubes"), nanotubes and fibrils, which are functionalized by chemical substitution, are used as electrodes in electrochemical capacitors. The graphitic nanofiber based electrode increases the performance of the |
| 5861454 |
Rubber composition containing carbon fibrils and a pneumatic tire |
January 19, 1999 |
| A rubber composition containing carbon fibrils in which 0.5 to 60 parts by weight of carbon fibril material comprised primarily of an aggregate of fibrils having an average particle diameter of 0.05 to 50 microns in which fine, filiform carbon fibrils of 3.5 to 75 nm in diameter are inte |
| 5846658 |
Methods of preparing three-dimensional, macroscopic assemblages of carbon fibrils and the produc |
December 8, 1998 |
| A method of making randomly oriented carbons fibrils having a cylindrical constant diameter with c-axes perpendicular to their cylindrical axis, which are free of pyrolytically deposited carbon, with a diameter of between 3.5 and 70 nanometers, by dispersing carbon fibrils in a medium |
| 5814290 |
Silicon nitride nanowhiskers and method of making same |
September 29, 1998 |
| Silicon nitride nanowhiskers predominantly having diameters substantially less than about 200 nm are disclosed. The nanowhiskers of Si.sub.3 N.sub.4 are produced by reacting gaseous SiO and N.sub.2 at elevated temperature and pressure in a reaction zone in the presence of a plurality of |
| 5726116 |
Fibril aggregates and method for making same |
March 10, 1998 |
| A fibril aggregate that includes a multiplicity of carbon fibrils whose longitudinal axes have substantially the same relative orientation, each of the fibrils characterized as having graphitic layers that are substantially parallel to its longitudinal axis and being free of a contin |
| 5691054 |
Three dimensional macroscopic assemblages of randomly oriented carbon fibrils and composites con |
November 25, 1997 |
| It has now been found that highly advantageous three-dimensional, macroscopic assemblages of randomly oriented carbon fibrils can be prepared which have relatively uniform physical properties along one, preferably two and most desirably three-dimensional axis of the three-dimensional |
| 5569635 |
Catalyst supports, supported catalysts and methods of making and using the same |
October 29, 1996 |
| A supported catalyst comprising a carbon fibril aggregate and a catalytically effective amount of a catalyst supported therein, a process for performing a catalytic reaction in fluid phase using the supported catalyst and a process for making the supported catalyst are disclosed. |
| 5456897 |
Fibril aggregates and method for making same |
October 10, 1995 |
| A fibril aggregate that includes a multiplicity of carbon fibrils whose longitudinal axes have substantially the same relative orientation, each of the fibrils characterized as having graphitic layers that are substantially parallel to its longitudinal axis and being free of a contin |
