Patent application number | Description | Published |
20090036549 | SUBSTANCE-ENCAPSULATED CARBON NANOHORN COMPLEX AND PRODUCING METHOD THEREOF - A cap of polyamine molecules is provided on an aperture portion of carbon nanohorns having apertures formed by oxidation. The polyamine cap opens and closes according to the pH of the ambient environment, thereby controlling release of an encapsulation substance. | 02-05-2009 |
20090208567 | SUBSTANCE-CONTAINING CARBON NANOHORN COMPOSITE HAVING POLYAMINE PLUG AND PROCESS FOR PRODUCING THE SAME - The present invention provides: a carbon nanohorn composite including a carbon nanohorn, a substance encapsulated in the carbon nanohorn, and a polyamine adsorbed by chemical reaction firmly to a surface functional group present on the opening part on the surface of the carbon nanohorn, wherein the release amount and release rate of the encapsulated substance can be controlled using the difference in size, substituent or three-dimensional structure of the polyamine, which is used as a plug; a method of controlling the release of the encapsulated substance; and a process for producing the carbon nanohorn composite. The release amount and release rate of the substance encapsulated in the carbon nanohorn composite is controlled by selecting a polyamine molecule, which plugs the opening part formed in the carbon nanohorn by oxidation, by its size, substituent or three-dimensional structure. | 08-20-2009 |
20090301861 | Apparatus and Method for Manufacturing Carbon Nanohorns - An apparatus for manufacturing carbon nanohorns includes a production chamber configured to irradiate a solid carbon material with a laser beam to produce a product containing carbon nanohorns; and a separation mechanism configured to separate the product produced in the production chamber into a lightweight component and a heavyweight component. The heavyweight component includes carbon nanohorn aggregate with high purity, and high-purity carbon nanotubes can be obtained by collecting the heavyweight component. | 12-10-2009 |
20100075835 | NANOCARBON AGGREGATE AND METHOD FOR MANUFACTURING THE SAME - A nanocarbon aggregate including a graphite aggregate including a graphene sheet having a petal shape and a nanohorn. The petal-shaped graphite aggregate achieves a reduction in the particulate size and a higher dispersibility by allowing the edge of the petal shape to locally absorb a metal, a metal complex and a metal oxide. The nanocarbon aggregate is used for a catalyst support. | 03-25-2010 |
20110082034 | NANOTUBE-NANOHORN COMPLEX AND METHOD OF MANUFACTURING THE SAME - An object of the present invention is to provide a nanotube-nanohorn complex having an aspect ratio higher than that of a conventional one, also having high dispersibility, and being capable of growing carbon nanotubes with controlled diameter. A nanotube-nanohorn complex according to the present invention comprises carbon nanohorn and catalyst fine particles supported within the carbon nanohorn. The carbon nanohorn comprise an aperture formed therein. Each of the catalyst fine particles is fitted and fixed in the aperture in a state in which part of the catalyst fine particle is exposed to the exterior of the carbon nanohorn. Carbon nanotubes are grown from the catalyst fine particles. | 04-07-2011 |
20120202060 | NANOTUBE-NANOHORN COMPLEX AND METHOD OF MANUFACTURING THE SAME - An object of the present invention is to provide a nanotube-nanohorn complex having a high aspect ratio, also having high dispersibility, having controlled diameter, and having high durability at a low cost. According to the present invention, a carbon target containing a catalyst is evaporated with a laser ablation method to synthesize a structure including both of a carbon nanohorn aggregate and a carbon nanotube. | 08-09-2012 |
Patent application number | Description | Published |
20090196993 | Carbon Nanohorn Carried Material And Process For Producing Carbon Nanotube - A carbon nanohorn carried material for producing a carbon nanotube by a chemical vapor deposition (CVD) method, including a catalytic metal or a compound thereof contained inside carbon nanohorns or supported on exterior walls of the carbon nanohorns is provided. A carbon nanotube is produced by a CVD reaction using the carbon nanohorn carried material. A novel technical means for producing a carbon nanotube which does not use any noncarbon type carrier, can easily collect and purify the carbon nanotube and can control the length of the carbon nanotube can be provided. | 08-06-2009 |
20100025222 | METHOD OF FORMING PORE IN GRAPHITIC-CARBON NANOMATERIAL AND METHOD OF INTRODUCING OXYGEN-CONTAINING GROUP INTO PORE - Provided are a method of forming pores in a graphitic carbon nanomaterial and a method of introducing an oxygen-containing group into the pores, in which the rate of pore formation in the wall of a graphitic carbon nanomaterial can be heightened and the amount of the oxygen-containing group, especially the carboxyl group to be introduced can be significantly increased. The method of forming pores in a graphitic carbon nanomaterial of the invention is characterized by forming pores in the wall of a graphitic carbon nanomaterial in the presence of an oxidizing agent while the nanomaterial is irradiated with a light from a light source including a light having a wavelength at which the oxidizing agent is activated. | 02-04-2010 |
20100202976 | SUBSTANCE-ENCAPSULATING CARBON NANOHORN AGGREGATE AND PROCESS FOR PRODUCING THE SAME - A substance-encapsulating carbon nanohorn aggregate which has improved chemical stability by isolating the encapsulated substance from outside and which is useful as a targeting material which can be led from the outside of the body or as a contrast medium by holding the encapsulated substance in an aggregated form, and a process for producing the same are provided. The substance-encapsulating carbon nanohorn aggregate is characterized in that the encapsulated substance is aggregated in a central part of the carbon nanohorn aggregate or a neighborhood thereof with being isolated from outside. The process includes aggregating a substance to be encapsulated in a central part or a neighborhood thereof by a heat treatment. | 08-12-2010 |
20120270051 | CARBON NANOHORN CARRIED MATERIAL AND PROCESS FOR PRODUCING CARBON NANOTUBE - A carbon nanohorn carried material for producing a carbon nanotube by a chemical vapor deposition (CVD) method, including a catalytic metal or a compound thereof contained inside carbon nanohorns or supported on exterior walls of the carbon nanohorns is provided. A carbon nanotube is produced by a CVD reaction using the carbon nanohorn carried material. A novel technical means for producing a carbon nanotube which does not use any noncarbon type carrier, can easily collect and purify the carbon nanotube and can control the length of the carbon nanotube can be provided. | 10-25-2012 |