摘要:
Reflux systems and methods for purifying carbon nanostructures using same are provided. The reflux system includes a solvent flask, an extraction tube connected to the solvent flask by a siphon tube and a vapor tube each extending between the extraction tube and the solvent flask, and an energy application disposed around the bottom portion of the extraction tube. The reflux systems can be used in a one-step method of purifying carbon nanostructures that includes placing a soot sample that contains the carbon nanostructures and amorphous carbon in a filter and disposing the filter in the extraction tube.
摘要:
A method of manufacturing a tubular carbon molecule capable of regularly aligning a carbon nanotube with a finer spacing is provided. A catalyst is arranged on a material substrate (10) made of a semiconductor such as silicon (Si) and including iron (Fe) as a catalyst through the use of melting according to a modulated heat distribution (11). The heat distribution (11) is formed, for example, through diffracting an energy beam (12) by a diffraction grating (13). As a method of arranging the catalyst, for example, iron may be deposited in a planar shape or a projection shape in a position corresponding to the heat distribution (11), or the deposited iron may be used as a master to be transferred to another substrate. A carbon nanotube is grown through the use of the arranged catalyst. The grown carbon nanotube can be used as a recording apparatus, a field electron emission device, an FED or the like.
摘要:
A method of manufacturing a tubular carbon molecule capable of regularly aligning a carbon nanotube with a finer spacing is provided. A catalyst is arranged on a material substrate (10) made of a semiconductor such as silicon (Si) and including iron (Fe) as a catalyst through the use of melting according to a modulated heat distribution (11). The heat distribution (11) is formed, for example, through diffracting an energy beam (12) by a diffraction grating (13). As a method of arranging the catalyst, for example, iron may be deposited in a planar shape or a projection shape in a position corresponding to the heat distribution (11), or the deposited iron may be used as a master to be transferred to another substrate. A carbon nanotube is grown through the use of the arranged catalyst. The grown carbon nanotube can be used as a recording apparatus, a field electron emission device, an FED or the like.
摘要:
A method of manufacturing a tubular carbon molecule capable of regularly aligning a carbon nanotube with a finer spacing is provided. A catalyst is arranged on a material substrate (10) made of a semiconductor such as silicon (Si) and including iron (Fe) as a catalyst through the use of melting according to a modulated heat distribution (11). The heat distribution (11) is formed, for example, through diffracting an energy beam (12) by a diffraction grating (13). As a method of arranging the catalyst, for example, iron may be deposited in a planar shape or a projection shape in a position corresponding to the heat distribution (11), or the deposited iron may be used as a master to be transferred to another substrate. A carbon nanotube is grown through the use of the arranged catalyst. The grown carbon nanotube can be used as a recording apparatus, a field electron emission device, an FED or the like.
摘要:
A method of manufacturing a tubular carbon molecule capable of regularly aligning a carbon nanotube with a finer spacing is provided. A catalyst is arranged on a material substrate (10) made of a semiconductor such as silicon (Si) and including iron (Fe) as a catalyst through the use of melting according to a modulated heat distribution (11). The heat distribution (11) is formed, for example, through diffracting an energy beam (12) by a diffraction grating (13). As a method of arranging the catalyst, for example, iron may be deposited in a planar shape or a projection shape in a position corresponding to the heat distribution (11), or the deposited iron may be used as a master to be transferred to another substrate. A carbon nanotube is grown through the use of the arranged catalyst. The grown carbon nanotube can be used as a recording apparatus, a field electron emission device, an FED or the like.
摘要:
An arc electrode structure, for producing carbon nanostructures, which includes a first electrode and two or more second electrodes disposed within a chamber is provided. The electrodes are connected to a voltage potential to produce an arc-plasma region. The first electrode has a sloped surface with a plurality of holes therein for holding catalyst. The first electrode's sloped surface, and the positioning of the plurality of second electrodes allows control of the direction and region of arc-plasma. Further, the first electrode has a central bore which may be either a blind bore, or a through bore. The blind bore collects unwanted deposits that slide off of the sloped surface of the first electrode. The throughbore either allows soot and carbon nanostructures to be removed from the chamber, or allows organic vapor to be introduced into the chamber. When the throughbore is used to introduce organic vapor into the chamber, the vapor is directed through the arc-plasma region so that carbon nanostructures are built up by a CVD process rather than being broken off of carbon electrodes.
摘要:
Methods and devices for producing fullerene are provided. The present invention includes a pair of electrodes spaced apart to define a region wherein an arc discharge can be conducted between the electrode pair and a gas containing carbon can be supplied to the region such that fullerene can be easily and readily produced.
摘要:
A manufacturing method of carbon nanotubes capable of mass-producing DWCNT with high throughput and a low defect incidence ratio is provided. In a vacuum chamber (1), a first electrode (2) having a hollow (2a) and a rod-like second electrode (3) are included. Inert gas such as helium gas, nitrogen gas, and argon gas is introduced into the vacuum chamber (1), the atmosphere not containing hydrogen gas and oxygen gas is created, and in this state, arc discharge is generated between the first electrode (2) and the second electrode (3). The heat generated by arc discharge is moderately stored on the surface of the inner side surrounded by the first electrode (2), and temperatures on the surface of the first electrode (2) are maintained at the temperatures suitable for producing the DWCNT (8). Thereby, the thready DWCNT (8) can be continuously produced without pause starting with a catalyst (6).
摘要:
A hydrogen-stored carbonaceous material is provided. The present invention relates to a hydrogen-stored carbonaceous material obtained by storing hydrogen in a carbonaceous material heated at more than about 230° C. under pressure in a reducing atmosphere, a battery and a fuel cell using same. The carbonaceous material is heated at more than about 230° C. under pressure in a reducing atmosphere so that its surface can be efficiently cleaned and an area where the surface of the carbonaceous material comes into contact with hydrogen atoms or hydrogen molecules is increased.
摘要:
A hydrogen-storing carbonaceous material is provided. The hydrogen-storing carbonaceous material is obtained by heating a carbonaceous material in a gas atmosphere including hydrogen gas and substantially including no reactive gas as impurity gas to store hydrogen. According to the present invention, since the surface of the carbonaceous material can be cleaned and hydrogen can be stored in the carbonaceous material in the same gas atmosphere and a hydrogen-stored carbonaceous material can be produced by controlling a heating process time in the gas atmosphere including the hydrogen gas and substantially including no reactive gas as the impurity gas. This can facilitate the use of the hydrogen-stored carbonaceous material as applied to devices, systems, processes and/or the like.