摘要:
The present invention relates to carbon materials comprising carbon nanotubes, powders comprising carbon nanotubes and methods of making carbon nanotubes. In the methods of the present invention, the size and/or formation of floating catalyst particles is closely controlled. The resulting carbon nanotubes typically exhibit armchair chirality and typically have metallic properties. The carbon nanotubes produced by this method readily form bulk materials, which typically have a conductivity of at least 0.7×106 Sm−1 in at least one direction. The invention has particular application to the manufacture of components such as electrical conductors. Suitable electrical conductors include wires (e.g. for electrical motors) and cables (e.g. for transmitting electrical power).
摘要:
An electrical conductor which has an electrically conducting fiber including carbon nanotubes and/or a graphene nanoribbon and a layer of insulating material coated around the electrically conducting fiber. The insulating material substantially does not penetrate the electrically conducting fiber, or penetrates the electrically conducting fiber only to a depth that leaves a continuous conductive path along a remaining part of the electrically conducting fiber.
摘要:
An electrical conductor comprising an electrically conducting fibre comprising carbon nanotubes and/or graphene nanoribbon and a layer of insulating material coated around the electrically conducting fibre. The insulating material substantially does not penetrate the electrically conducting fibre, or penetrates the electrically conducting fibre only to a depth that leaves a continuous conductive path along a remaining part of the electrically conducting fibre.