Abstract: An electrochemical capacitor includes a first electrode, a second electrode, a membrane, and an electrolyte. The first electrode includes a carbon nanotube composite. The carbon nanotube composite includes a free-standing carbon nanotube structure, and a plurality of nano grains located on the carbon nanotube structure. The membrane is located between the first electrode and the second electrode, to separate the first electrode from the second electrode. The first electrode, the second electrode, and the membrane are disposed in the electrolyte.

Abstract: The present invention relates to a method for making a twisted carbon nanotube wire. Two opposite ends of the at least one carbon nanotube film is clamped by two clamps. The two clamps is pulled along two reversed directions to stretch the at least one carbon nanotube film. The at least one carbon nanotube film is twisted by rotating the two clamps while the at least one carbon nanotube film is in a straightening state.

Abstract: The present disclosure relates to a transmission electron microscope grid including graphene sheet-carbon nanotube film composite. The graphene sheet-carbon nanotube film composite structure includes at least one carbon nanotube film structure and at least one functionalized graphene sheet. The carbon nanotube film structure includes at least one pore. The pore is covered by the functionalized graphene sheet.

Abstract: The present invention relates to a method for making a graphene sheet-carbon nanotube film composite structure. The method includes steps of: providing a carbon nanotube film structure and a dispersed solution, and the dispersed solution comprises a solvent and an amount of functionalized graphene sheets dispersed in the solvent; applying the dispersed solution on a surface of the carbon nanotube film structure; and removing the solvent and thereby locating the functionalized graphene sheets on the carbon nanotube film structure. The present invention also relates to a method for making a transmission electron microscope grid.

Abstract: A carbon nanotube composite includes a free-standing carbon nanotube structure and an amount of reinforcements. The free-standing carbon nanotube structure includes an amount of carbon nanotubes. The reinforcements are located on the carbon nanotubes and combining the carbon nanotubes together.

Abstract: A method for making a carbon nanotube composite includes providing a free-standing carbon nanotube structure and a reacting liquid with a metal compound dissolved therein, treating the carbon nanotube structure by applying the reacting liquid on the carbon nanotube structure, and heating the treated carbon nanotube structure in an oxide-free environment to decompose the metal compound.

Abstract: The present disclosure relates to a transmission electron microscope grid including graphene sheet-carbon nanotube film composite. The graphene sheet-carbon nanotube film composite structure includes at least one carbon nanotube film structure and at least one functionalized graphene sheet. The carbon nanotube film structure includes at least one pore. The pore is covered by the functionalized graphene sheet.

Abstract: The present invention relates to a method for making a graphene sheet-carbon nanotube film composite structure. The method includes steps of: providing a carbon nanotube film structure and a dispersed solution, and the dispersed solution comprises a solvent and an amount of functionalized graphene sheets dispersed in the solvent; applying the dispersed solution on a surface of the carbon nanotube film structure; and removing the solvent and thereby locating the functionalized graphene sheets on the carbon nanotube film structure. The present invention also relates to a method for making a transmission electron microscope grid.

Abstract: A method for making a carbon nanotube composite includes providing a free-standing carbon nanotube structure and a reacting liquid with a metal compound dissolved therein, treating the carbon nanotube structure by applying the reacting liquid on the carbon nanotube structure, and heating the treated carbon nanotube structure in an oxide-free environment to decompose the metal compound.

Abstract: An electrochemical capacitor includes a first electrode, a second electrode, a membrane, and an electrolyte. The first electrode includes a carbon nanotube composite. The carbon nanotube composite includes a free-standing carbon nanotube structure, and a plurality of nano grains located on the carbon nanotube structure. The membrane is located between the first electrode and the second electrode, to separate the first electrode from the second electrode. The first electrode, the second electrode, and the membrane are disposed in the electrolyte.

Abstract: A carbon nanotube composite includes a free-standing carbon nanotube structure and an amount of reinforcements. The free-standing carbon nanotube structure includes an amount of carbon nanotubes. The reinforcements are located on the carbon nanotubes and combining the carbon nanotubes together.

Abstract: The present invention relates to a method for making a twisted carbon nanotube wire. Two opposite ends of the at least one carbon nanotube film is clamped by two clamps. The two clamps is pulled along two reversed directions to stretch the at least one carbon nanotube film. The at least one carbon nanotube film is twisted by rotating the two clamps while the at least one carbon nanotube film is in a straightening state.