摘要:
An apparatus includes a hollow heater. The hollow heater has a hollow supporter, a heating element and at least two electrodes. The at least two electrodes are separately and electrically connected to the heating element. The hollow supporter defines a hollow space, the hollow supporter has an inner surface and an outer surface. The heating element disposed on one of the surfaces of the hollow supporter. The heating element includes a carbon nanotube structure. The carbon nanotube structure includes a plurality of carbon nanotubes combined by wan der Waals attractive force.
摘要:
An apparatus for making an array of carbon nanotubes includes a reaction chamber with a gas inlet and a gas outlet; a quartz boat disposed in the reaction chamber; a substrate with a surface deposited with a film of first catalyst, the substrate being disposed in the quartz boat; and a second catalyst disposed in the quartz beside the substrate. A method for making an array of carbon nanotubes, comprising the steps of: (a) providing a substrate with a surface deposited with a film of first catalyst; (b) disposing a second catalyst beside the substrate to produce small amounts of hydrogen gas which flows to the first catalyst; (c) introducing a carrier gas and a carbon source gas flowing from the second catalyst to the first catalyst at a predetermined temperature; and (d) growing an array of carbon nanotubes extending from the substrate.
摘要:
An apparatus includes a hollow heater. The hollow heater has a hollow supporter, a heating element and at least two electrodes. The at least two electrodes are separately and electrically connected to the heating element. The hollow supporter defines a hollow space, the hollow supporter has an inner surface and an outer surface. The heating element disposed on one of the surfaces of the hollow supporter. The heating element includes a carbon nanotube film. The carbon nanotube film is made of a plurality of carbon nanotubes entangled with each other.
摘要:
A method for making a hollow heater is provided. The method includes providing a hollow supporter and, the hollow supporter defines a hollow space. A carbon nanotube structure is made and then fixed on a surface of the hollow supporter. A first electrode and a second electrode is provided and electrically connected to the carbon nanotube structure.
摘要:
An apparatus includes a hollow heater. The hollow heater includes a hollow supporter, a heating element and at least two electrodes. The hollow supporter has an inner surface and an outer surface. The heating element is attached on one of the inner and the outer surfaces of the hollow supporter. The heat element comprises of a carbon nanotube film comprising of carbon nanotubes arranged along a same direction. The at least two electrodes are electrically connected to the heating element.
摘要:
A method for manufacturing open-ended carbon nanotubes is described. The method includes steps of: providing a substrate having a catalyst layer formed thereon; placing the substrate in a reaction chamber; introducing a carbon source gas containing carbon element into the reaction chamber for growing carbon nanotubes form the catalyst layer; promptly reducing a concentration of the carbon source gas when the growth of carbon nanotubes in process, thereby ceasing the growth of the carbon nanotubes instantly; and separating the carbon nanotubes from the catalyst layer.
摘要:
A device (20) for manufacturing a carbon nanotube array (10) includes a reaction chamber (220), a gas introducing tube (228), and a quartz boat (240). The reaction chamber includes a first gas inlet (222), a second gas inlet (224), and a gas outlet (226). The first gas inlet is configured for introducing a reaction gas, and the second gas inlet is configured for introducing a disturbance gas. The quartz boat is disposed in the reaction chamber. The quartz boat is used to carry a substrate (12) from/upon which the carbon nanotube array grows. The gas introducing tube is connected to the second gas inlet and to the quartz boat. The gas introducing tube is used to transport the disturbance gas introduced from the second gas inlet to the quartz boat to disturb/interrupt nanotube growth.
摘要:
A method for making a composite carbon nanotube structure includes the following steps. An organic solvent, a polymer, and a carbon nanotube structure are provided. The polymer is dissolved in the organic solvent to obtain a polymer solution. The carbon nanotube film structure is soaked with the polymer solution. A contact angle between the organic solvent and a carbon nanotube is less than 90 degrees.
摘要:
A surface-enhanced Raman scattering substrate includes a carbon nanotube film structure and a plurality of metallic particles disposed on the carbon nanotube film structure. The carbon nanotube film structure includes a number of carbon nanotubes joined by van der Waals attractive force therebetween. The carbon nanotube film structure is a free-standing structure.
摘要:
The present disclosure relates to a method for making a transparent carbon nanotube composite film. The method includes: (a) providing a transparent carbon nanotube film structure; (b) fixing the transparent carbon nanotube film structure on a supporting; (c) immersing the transparent carbon nanotube film structure with the supporting into a transparent polymer solution; and (d) removing the transparent carbon nanotube film structure with the supporting from the transparent polymer solution, thereby forming the transparent carbon nanotube composite film. A light transmittance of the transparent carbon nanotube composite film structure is higher than a light transmittance of the transparent carbon nanotube film structure.