Abstract:
Cohesive carbon assemblies are prepared by obtaining a functionalized carbon starting material in the form of powder, particles, flakes, loose agglomerates, aqueous wet cake, or aqueous slurry, dispersing the carbon in water by mechanical agitation and/or refluxing, and substantially removing the water, typically by evaporation, whereby the cohesive assembly of carbon is formed. The method is suitable for preparing free-standing, monolithic assemblies of carbon nanotubes in the form of films, wafers, discs, fiber, or wire, having high carbon packing density and low electrical resistivity. The method is also suitable for preparing substrates coated with an adherent cohesive carbon assembly. The assemblies have various potential applications, such as electrodes or current collectors in electrochemical capacitors, fuel cells, and batteries, or as transparent conductors, conductive inks, pastes, and coatings.
Abstract:
Cohesive assemblies comprising carbon are prepared by obtaining carbon in the form of powder, particles, flakes, or loose agglomerates, dispersing the carbon in a liquid halogen by mechanical mixing and/or sonication, and substantially removing the liquid halogen, typically by evaporation, whereby the cohesive assembly of carbon is formed. The method is especially suitable for preparing free-standing, monolithic assemblies of carbon nanotubes in the form of films, wafers, or discs, having high carbon packing density and low electrical resistivity. The assemblies have various potential applications, such as electrodes in batteries or supercapacitors or as electromagnetic interference shielding materials.
Abstract:
This invention is directed to an article comprising a transparent substrate and an electrically conductive transparent coating deposited on the transparent substrate. This invention is also directed to methods for preparing the electrically conductive transparent coating and depositing the coating on the transparent substrate. This invention is further directed to devices containing such articles. The electrically conductive transparent coating comprises carbon nanotubes filled, coated, or both filled and coated by a non-carbon material.
Abstract:
This invention relates generally to gas sensors comprising organized assemblies of carbon and non-carbon compounds. The invention also relates to devices containing such gas sensors and analysis units. In preferred embodiments, the organized assemblies of the instant invention take the form of nanorods or their aggregate forms. More preferably, a nanorod is made up of a carbon nanotube filled, coated, or both filled and coated by a non-carbon material.
Abstract:
Cohesive assemblies comprising carbon are prepared by obtaining carbon in the form of powder, particles, flakes, or loose agglomerates, dispersing the carbon in a liquid halogen by mechanical mixing and/or sonication, and substantially removing the liquid halogen, typically by evaporation, whereby the cohesive assembly of carbon is formed. The method is especially suitable for preparing free-standing, monolithic assemblies of carbon nanotubes in the form of films, wafers, or discs, having high carbon packing density and low electrical resistivity. The assemblies have various potential applications, such as electrodes in batteries or supercapacitors or as electromagnetic interference shielding materials.
Abstract:
This invention relates generally to capacitors comprising organized assemblies of carbon and non-carbon compounds. This invention further relates to methods of making such organized structures. It also relates to devices containing such structures. In preferred embodiments, the organized structures of the instant invention take the form of nanorods or their aggregate forms. More preferably, a nanorod is made up of a carbon nanotube filled, coated, or both filled and coated by a non-carbon material. In particular, the present invention is directed to a capacitor electrode comprising a carbon nanotube filled with one or more non-carbon materials comprising titanium, a titanium compound, manganese, a manganese compound, cobalt, nickel, palladium, platinum, bromine, iodine, an interhalogen compound, or the combination thereof.
Abstract:
This invention relates generally to capacitors comprising organized assemblies of carbon and non-carbon compounds. This invention further relates to methods of making such organized structures. It also relates to devices containing such structures. In preferred embodiments, the organized structures of the instant invention take the form of nanorods or their aggregate forms. More preferably, a nanorod is made up of a carbon nanotube filled, coated, or both filled and coated by a non-carbon material. In particular, the present invention is directed to a capacitor electrode comprising a carbon nanotube filled with one or more non-carbon materials comprising titanium, a titanium compound, manganese, a manganese compound, cobalt, nickel, palladium, platinum, bromine, iodine, an interhalogen compound, or the combination thereof.
Abstract:
This invention relates generally to capacitors comprising organized assemblies of carbon and non-carbon compounds. This invention further relates to methods of making such organized structures. It also relates to devices containing such structures. In preferred embodiments, the organized structures of the instant invention take the form of nanorods or their aggregate forms. More preferably, a nanorod is made up of a carbon nanotube filled, coated, or both filled and coated by a non-carbon material. In particular, the present invention is directed to a capacitor electrode comprising a carbon nanotube filled with one or more non-carbon materials comprising titanium, a titanium compound, manganese, a manganese compound, cobalt, nickel, palladium, platinum, bromine, iodine, an interhalogen compound, or the combination thereof.
Abstract:
This invention relates generally to organized assemblies of carbon and non-carbon compounds and methods of making such organized structures. In preferred embodiments, the organized structures of the instant invention take the form of nanorods or their aggregate forms. More preferably, a nanorod is made up of a carbon nanotube filled, coated, or both filled and coated by a non-carbon material. This invention is further drawn to the separation of single-wall carbon nanotubes. In particular, it relates to the separation of semiconducting single-wall carbon nanotubes from conducting (or metallic) single-wall carbon nanotubes. It also relates to the separation of single-wall carbon nanotubes according to their chirality and/or diameter.
Abstract:
This invention relates generally to gas sensors comprising organized assemblies of carbon and non-carbon compounds. The invention also relates to devices containing such gas sensors and analysis units. In preferred embodiments, the organized assemblies of the instant invention take the form of nanorods or their aggregate forms. More preferably, a nanorod is made up of a carbon nanotube filled, coated, or both filled and coated by a non-carbon material.