WO2005019103A1 - ナノカーボン製造装置およびナノカーボンの製造方法 - Google Patents
ナノカーボン製造装置およびナノカーボンの製造方法 Download PDFInfo
- Publication number
- WO2005019103A1 WO2005019103A1 PCT/JP2004/011263 JP2004011263W WO2005019103A1 WO 2005019103 A1 WO2005019103 A1 WO 2005019103A1 JP 2004011263 W JP2004011263 W JP 2004011263W WO 2005019103 A1 WO2005019103 A1 WO 2005019103A1
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- target
- light
- graphite target
- nanocarbon
- graphite
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Classifications
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/158—Carbon nanotubes
- C01B32/16—Preparation
- C01B32/162—Preparation characterised by catalysts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/158—Carbon nanotubes
- C01B32/16—Preparation
- C01B32/164—Preparation involving continuous processes
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/18—Nanoonions; Nanoscrolls; Nanohorns; Nanocones; Nanowalls
Definitions
- the present invention relates to a nanocarbon production device and a nanocarbon production method.
- Nanocarbon refers to a carbon material having a nanoscale microstructure, such as carbon nanotubes and carbon nanohorns.
- the carbon nanohorn has a tubular structure in which the graphite sheet is rolled into a cylindrical shape and one end of the carbon nanotube becomes conical. Due to its unique properties, it is applied to various technical fields. Is expected.
- the force-bonnanohorn is formed by the van der Waals force acting between the conical parts, with the conical parts protruding from the surface like a corner (horn) around the tube, forming a force-bonnanohorn aggregate. Form it.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2001-64004
- the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a manufacturing method and a manufacturing apparatus suitable for mass production by increasing the productivity of carbon nanohorn aggregates. Another object of the present invention is to provide a manufacturing method and a manufacturing apparatus suitable for mass-production by increasing the productivity of nanocarbon.
- the graphite target has a contact surface in contact with the surface of the graphite target, and the graphite target can be moved by a frictional force generated between the contact surface and the surface of the graphite target.
- the target is moved so that the irradiation position of the light on the surface of the graphite target is moved, and the graphite target is moved by frictional force generated between the surface of the graphite target and the contact surface.
- Nanocarbon manufacturing apparatus is provided, characterized in that it comprises a collecting means for the.
- a method for producing nanocarbon comprising: a step of irradiating a surface of a graphite target with light; and a step of collecting the nanocarbon generated in the step of irradiating light.
- the step of irradiating the light comprises: holding the graphite target by a contact surface provided in contact with the surface; and holding the graphite target by a frictional force between the surface and the contact surface.
- a step of irradiating the light with moving the carbon.
- a portion for gripping a graphite target is not required, the entire surface of the graphite target can be abraded, and nanocarbon can be easily mass-produced.
- the graphite target has a contact surface in contact with the surface of the cylindrical graphite target, and the friction target generated between the graphite surface and the surface of the graphite target at the contact surface.
- a target holding unit that movably holds the light source, a light source that irradiates the surface of the graphite target with light, and the graphite target that is held by the target holding device is relatively moved with respect to the light source; The irradiation position of the light on the surface of the graphite target is moved, and the graphite target is rotated around a central axis by a frictional force generated between the contact surface and the surface of the graphite target.
- recovery means for recovering the nano-carbon was, Yu
- the present invention provides an apparatus for producing nanocarbon.
- a step of irradiating light to the surface of the graphite target while rotating the cylindrical graphite target around a central axis, and a step of irradiating the surface with the light Recovering the deposited nanocarbon comprises: holding the graphite target by a contact surface provided in contact with the surface; And a step of irradiating the light while rotating the graphite target around a central axis by a frictional force between the graphite target and the contact surface.
- a portion for gripping the graphite target is not required, so that the entire surface of the graphite target can be abraded, and light irradiation is performed while rotating the cylindrical graphite target. By performing this step, it is possible to easily and continuously mass-produce nanocarbon.
- the “central axis” refers to an axis that passes through the center of the cross section perpendicular to the length direction of the cylindrical graphite target and is horizontal in the length direction.
- a graphite rod can be used as a cylindrical graphite target.
- the “graphite rod” refers to a graphite target formed into a rod shape. If it is rod-shaped, it can be hollow or solid.
- the surface of the cylindrical graphite target to which the light is irradiated is preferably a side surface of the cylindrical graphite target.
- the “side surface of the cylindrical graphite target” refers to a curved surface parallel to the length direction of the cylinder.
- the target holding means has a rotation axis substantially parallel to the central axis of the Daraphite target, and holds the graphite target while being juxtaposed with each other. And holding the two cylindrical rollers, wherein the moving means rotates the rollers about the rotation axis to generate the frictional force generated between the contact surface of the rollers and the surface of the graphite target. Thereby, the graphite target can be rotated around the central axis.
- the moving means may be configured such that an irradiation position of the light applied to the surface of the graphite target covers substantially the entire surface of the surface of the graphite target.
- the target holding means can be driven.
- the step of irradiating the surface of the graphite target with light substantially all of the surface of the graphite target is moved while moving the irradiation position of the light.
- the light may be radiated so as to extend therethrough.
- the moving means may move the irradiation position while keeping the light irradiation angle at the light irradiation position on the surface of the graph target substantially constant. It may be composed.
- the light in the step of irradiating the light, is irradiated such that an irradiation angle of the light on the surface of the graphite target is substantially constant. can do.
- the "irradiation angle” refers to the angle between the light and the perpendicular to the surface of the graphite target at the light irradiation position.
- irradiating light so that the irradiation angle of light on the surface of the graphite target is substantially constant means that the power density of the light irradiated on the surface of the graphite target is intentionally changed. It refers to keeping the irradiation angle constant to such an extent that it does not occur.
- the contact surface may be provided in contact with a side surface of the graphite target.
- the cylindrical graphite The get can be stably held and can be rotated stably in the direction of its central axis. Therefore, stable quality nanocarbon can be obtained with high productivity.
- the target holding means may be made of any one of stainless steel and ceramics, or a metal having carbon deposited on the surface.
- the step of irradiating the light may include a step of irradiating a laser beam.
- the wavelength and direction of light can be kept constant, so that the conditions of light irradiation on the graphite target surface can be controlled with high accuracy. Therefore, desired nanocarbon can be selectively produced.
- the nanocarbon may be a carbon nanohorn aggregate.
- the step of recovering nanocarbon may include a step of recovering a carbon nanohorn aggregate.
- the carbon nanohorn constituting the carbon nanohorn aggregate may be a single-layer carbon nanohorn or a multilayer carbon nanohorn.
- the nanocarbon may be a carbon nanotube.
- the moving means for example, when irradiating light while rotating a cylindrical graphite target around a central axis, the irradiation position in the longitudinal direction of the graphite target is moved, and When the target is cut by light irradiation and its diameter is reduced, a mode in which the target is moved vertically upward to the central axis of the target is adopted. According to this configuration, it is possible to control the light irradiation conditions on the graphite target with good accuracy even while the graphite target is moving. , It is possible to selectively produce desired nanocarbon.
- the graphite target is held by the contact surface provided in contact with the surface of the graphite target, and the graphite target is held by the frictional force between the surface and the contact surface.
- FIG. 1 is a perspective view showing an example of a configuration of an apparatus for producing nanocarbon according to an embodiment of the present invention.
- FIG. 2 is a partial cross-sectional view illustrating an example of a target holding section of the nanocarbon production apparatus of FIG. 1.
- FIG. 3 is a partial cross-sectional view showing an example of a target holding section of the nanocarbon production apparatus of FIG. 1.
- FIG. 4 is a view for explaining rotation of a graphite rod in a target holding movable section in FIG. 2.
- FIG. 5 is a partial front view showing an example of a vertically movable portion of the target holding unit of FIG. 2.
- FIG. 6 is a view for explaining a position movement of a graphite rod in the target holding movable section in FIG. 2.
- FIG. 7 is a partial cross-sectional view showing one example of a target holding section of the nanocarbon production apparatus of FIG. 1.
- FIG. 8 is a view for explaining rotation of a graphite rod in the target holding movable section in FIG. 7.
- FIG. 9 is a view for explaining the position movement of a graphite rod in the target holding movable section in FIG. 7.
- FIG. 1 and the drawings used for describing other manufacturing apparatuses are schematic views, and the size of each component does not necessarily correspond to the actual dimensional ratio.
- FIG. 1 is a diagram showing an example of a configuration of an apparatus for producing nanocarbon according to an embodiment of the present invention.
- the manufacturing apparatus of the present embodiment includes a laser light source 111 that irradiates a laser beam 103 onto the surface of a graphite rod 101, a lens 123 for condensing the laser beam 103, and a rotatable and movable graphite rod 101.
- the recovered nanocarbon includes carbon nanohorn aggregates 117.
- an inert gas supply unit 127 is connected to the manufacturing chamber 107 via a flow meter 129.
- the transport pipe 141 is provided in the direction in which the phenolic 109 is generated when the laser light source 111 irradiates the surface of the graphite rod 101 with the laser beam 103.
- the plume 109 is generated in a direction perpendicular to the surface of the graphite rod 101 because the laser light 103 that makes an angle of 45 ° with the surface of the graphite rod 101 is irradiated.
- the transport pipe 141 has a configuration in which the length direction is arranged perpendicular to the surface of the graphite rod 101. By doing so, the generated carbon nanohorn aggregate 117 can be reliably recovered in the nanocarbon recovery chamber 119.
- the manufacturing chamber 107 is configured to irradiate a laser beam 103 to a side surface thereof while rotating the graphite rod 101 in a circumferential direction as described later.
- Laser light 103 Is irradiated with the laser beam 103 in a positional relationship in which the direction of the plume 109 does not coincide with the direction in which the plume 109 is generated.
- the angle of the plume 109 generated on the side surface of the graphite rod 101 can be predicted in advance. Therefore, the position and angle of the transfer pipe 141 can be precisely controlled. Therefore, the carbon nanohorn aggregate 117 can be manufactured efficiently and can be reliably recovered.
- a cylindrical graphite rod 101 is used as a solid carbon simple substance serving as a target of laser beam 103 irradiation.
- FIG. 2 shows an example of the target holding movable section 130 of the nanocarbon production apparatus of FIG. 1, and is a partial cross-sectional view of FIG. 1 viewed from the right side.
- FIG. 3 is a partial cross-sectional view of the target holding movable section 130 shown in FIG. 1 as viewed from the front in FIG.
- FIGS. 2 and 3 show a state where the target holding movable section 130 has the graphite rod 101 loaded thereon.
- the target holding movable portion 130 has a contact surface in contact with the side surface of the graphite rod 101, and friction generated between the contact surface and the side surface of the graphite rod 101. It includes two holding rollers 131 for rotatably holding the graphite rod 101 by force, and a movable base 144 for moving the holding rod 131 in a direction substantially parallel to the rotation axis 133 of the holding roller 131.
- the holding roller 131 is made of any one of stainless steel and ceramics, or a metal having carbon deposited on its surface.
- stainless steel rough surface stainless steel is preferred, so that an appropriate frictional force is generated on the contact surface with the surface of the graphite rod 101, and the surface of the graphite rod 101 is not damaged. be able to.
- each holding roller 131 At one end of each holding roller 131, a mating tooth 132 is formed.
- the mating tooth 132 is formed at a position that does not contact the side surface of the graphite rod 101.
- Each holding roller 131 has a rotation axis 133 substantially parallel to the central axis 102 of the graphite rod 101, and a motor 139 for rotating each holding roller 131 via the rotation axis 133 of each holding roller 131.
- the graphite rod 101 is held while the rotating shafts 133 of the two holding rollers 131 are juxtaposed substantially parallel to each other. Both ends of the rotating shaft 133 of the holding roller 131 are rotatably fixed to the movable base 144 by the rotating shaft holder 134 and the rotating shaft holder 142.
- FIG. 4 is a diagram for explaining rotation of the graphite rod 101 in the target holding movable section 130 in FIG.
- FIG. 4 is a view of two cylindrical holding rollers 131 and a cylindrical graphite rod 101 viewed from a cross section perpendicular to the length direction.
- the two holding rollers 131 are juxtaposed, and the Dara fight rod 101 is held between them.
- a frictional force is generated between the holding roller 131 and the side surface of the graphite rod 101 at the contact surface with the graphite rod 101.
- the graphite rod 101 can be rotated in the reverse direction by the frictional force generated by the rotation of the holding roller 131.
- the mechanism for holding the graphite rod 101 on the contact surface and rotating the rod along the central axis 102 is provided independently, thereby stably holding the graphite rod 101 and rotating the rod with good controllability. be able to.
- a screw hole 147 is formed below movable table 144 in a direction substantially parallel to rotation axis 133 of holding roller 131.
- the target holding movable part 130 is inserted into the screw hole 147, meshes with the feed screw rod 146 to move the movable base 144 by rotating, and a motor 149 to rotate the feed screw rod 146 around the axial direction.
- a feed screw retainer 151 for rotatably fixing both ends of the feed screw rod 146 to the rail support 153.
- An axle 156 is rotatably provided at the lower end of the movable base 144, and wheels 15 5 for moving the holding roller 131 mounted on the movable base 144 in a direction substantially parallel to the rotation axis 133.
- wheels 15 5 for moving the holding roller 131 mounted on the movable base 144 in a direction substantially parallel to the rotation axis 133.
- a groove 157 is formed in the center of the circumference of each wheel 155.
- the target holding movable portion 130 extends on the rail support 153 and the rail support 153 in a direction substantially parallel to the rotation axis 133 of the holding roller 131, and is mounted on the wheel 155 of the movable support 144.
- Groove 157 force S fitting Lenore 159.
- target holding movable section 130 thus configured can be moved in a direction substantially parallel to central axis 102 of graphite rod 101 by rotation of motor 149. It becomes possible.
- the means for moving the graphite rod 101 in the long axis direction is not limited to this, and other means can be used.
- FIG. 5 is a partial front view showing an example of a vertically movable portion of the target holding movable portion 130 of FIG. It is.
- the upper and lower movable portions of the target holding movable portion 130 shown in FIG. 5 are provided at four corners of the rail support 153 of the target holding movable portion 130 shown in FIG.
- the vertical movable portion of the target holding movable portion 130 includes a base 171, a rack 173 provided perpendicular to the surface of the base 171, and a mating portion formed on the rack 173.
- a shaft holder 167 and a motor 169 provided at one end of the rotating shaft 163 for rotating the gear 161 around the rotating shaft 163 via the rotating shaft 163 are included.
- the target holding movable section 130 configured as described above rotates the gear 161 by the motor 169, and the gear 161 moves up and down together with the rack 173 to support the rail.
- the platform 153 moves up and down.
- the means for vertically moving the graphite rod 101 is not limited to this, and other means can be used.
- the target holding movable section 130 has a motor 139 for rotating the graphite rod 101 around a central axis, a motor 149 for moving in a direction parallel to the central axis, and a motor 169 for moving in a vertical direction.
- a motor 139 for rotating the graphite rod 101 around a central axis
- a motor 149 for moving in a direction parallel to the central axis
- a motor 169 for moving in a vertical direction.
- the present embodiment includes a control unit that controls the rotation of each motor 139, motor 149, and motor 169.
- the control unit may be an operation unit that controls each motor manually, or a computer that controls each motor automatically.
- FIG. 6 is a diagram for explaining the position movement of the graphite rod 101 in the target holding movable section 130 in FIG.
- FIG. 4 shows a cross section perpendicular to the central axis 102 of the graphite rod 101 before light irradiation
- FIG. 6 shows a graphite rod 101 with light irradiation and a reduced cross-sectional diameter.
- a cross section perpendicular to the central axis 102 is shown.
- the laser beam 103 is irradiated so that the irradiation angle is constant.
- the graphite rod 101 is slid in the length direction, so that the laser beam 103 is continuously emitted at a constant power density in the length direction of the graphite rod 101. Can be irradiated.
- the "power density” refers to the power density of light actually applied to the surface of the graphite target, that is, the power density at the light irradiation site on the surface of the graphite target. I do.
- the irradiation angle is an angle between a line connecting the irradiation position and the center of the circle and a horizontal plane in a cross section perpendicular to the longitudinal direction of the graphite rod 101. It becomes.
- the irradiation angle is set to 30 while rotating the graphite rod 101 around its central axis. It is preferable that it is not less than 60 ° and not more than 60 °.
- the irradiation angle By setting the irradiation angle to 30 ° or more, it is possible to prevent the laser light 103 to be irradiated from being reflected and generating return light. Further, the generated plume 109 is prevented from directly hitting the lens 123 through the laser light window 113. Therefore, it is effective to protect the lens 123 and to prevent the carbon nanohorn aggregate 117 from adhering to the laser light window 113. Therefore, the power density of the light irradiated to the graphite rod 101 can be stabilized, and the carbon nanohorn aggregate 117 can be stably manufactured with high yield.
- the irradiation angle is 45 °. By irradiating at 45 °, the ratio of the carbon nanohorn aggregate 117 in the product can be further improved.
- the power density can be made variable and can be reliably adjusted.
- the position of the lens 123 is fixed, for example, if the irradiation angle is set to 30 °, the power density can be increased. Also, for example, the irradiation angle should be 60 ° Thereby, the power density can be controlled to be low.
- the graphite rod 101 is cut by light irradiation, and its diameter decreases. This is shown in Figure 6.
- the graphite rod 101 is moved by the frictional force generated between the contact surface of the holding roller 131 and the surface of the graphite rod 101 so that the central axis is While rotating around 102, it can move in the long axis direction and vertically upward direction, so that the irradiation position of the laser beam 103 can cover almost the entire side surface of the graphite rod 101.
- the irradiation position of the laser beam 103 over substantially the entire area of the side surface of the graphite rod 101 means that carbon vapor can be generated on the entire side surface of the graphite rod 101. .
- the entire graphite rod 101 can be used as a raw material of the carbon nanohorn aggregate 117. The generation of unused areas can be suppressed, and the raw materials can be used efficiently.
- the portion for gripping the graphite rod 101 is unnecessary, and the laser irradiated on the side surface of the cylindrical graphite rod 101 is not required.
- the graphite rod 101 which is a target of the graphite, can be repeatedly irradiated with the laser beam 103, so that the graphite rod 101 can be effectively used.
- high-purity graphite for example, round bar-shaped sintered carbon, compression molded carbon, or the like can be used as graphite rod 101.
- the laser beam 103 for example, a laser beam such as a high-output CO gas laser beam is used.
- irradiation of the graphite rod 101 of the laser beam 103 performs Ar, reaction inert gas atmosphere including a rare gas such as He, for example, 10 3 Pa or more 10 5 Pa in the following atmosphere.
- the vacuum pump 143 pressure gauge 145 is connected, after evacuated below pre Tato example, if 10- 2 Pa within the production chamber 107, is preferably an inert gas atmosphere.
- the output, spot diameter, and irradiation angle of the laser beam 103 are set so that the power density of the laser beam 103 on the side surface of the graphite rod 101 is substantially constant, for example, 5 kW / cm 2 or more and 25 kW / cm 2 or less. It is preferable to adjust the.
- the output of the laser beam 103 is, for example, lkW or more and 50kW or less.
- the pulse width of the laser beam 103 is, for example, 0.5 seconds or more, and preferably 0.75 seconds or more. By doing so, the accumulated energy of the laser beam 103 applied to the surface of the graphite rod 101 can be sufficiently secured. Therefore, it is possible to efficiently manufacture the carbon nanohorn aggregate 117.
- the pulse width of the laser beam 103 is, for example, 1.5 seconds or less, and preferably 1.25 seconds or less. By doing so, it is possible to prevent the surface of the graphite rod 101 from being excessively heated, thereby fluctuating the energy density of the surface and reducing the yield of the carbon nanohorn aggregate. More preferably, the pulse width of the laser beam 103 is 0.75 seconds or more and 1 second or less. This can improve both the production rate and the yield of the carbon nanohorn aggregate 117.
- the pause width in the irradiation of the laser beam 103 can be, for example, 0.1 seconds or more, and preferably 0.25 seconds or more. By doing so, overheating of the surface of the graphite rod 101 can be more reliably suppressed.
- preferable irradiation angles of the laser beam 103 are as described above with reference to FIGS.
- the spot diameter of the laser beam 103 on the side of the graphite rod 101 during irradiation can be, for example, 0.5 mm or more and 5 mm or less.
- the spot of the laser beam 103 is moved at a speed (linear speed) of, for example, not less than 0.1 OlmmZsec and not more than 55 mm / sec.
- a speed linear speed
- the target holding movable part 13 when irradiating the surface of a graphite target with a diameter of 100 mm with laser light 103, the target holding movable part 13
- the above-described linear velocity can be realized by setting the number of rotations to, for example, 0.01 i "pm or more and 10i" pm or less. Further, it is preferable that the number of rotations be 2 rpm or more and 6 rpm, because the yield of the carbon nanohorn aggregate 117 can be further improved.
- the rotation direction of the graphite rod 101 there is no particular limitation on the rotation direction of the graphite rod 101, but the irradiation position moves away from the laser beam 103, that is, as shown in FIG. It is preferable to rotate in the direction from the light 103 to the transport pipe 141. By doing so, the carbon nanohorn aggregate 117 can be more reliably recovered.
- the soot-like substance obtained by irradiation with the laser beam 103 is configured to be collected in the nanocarbon collection chamber 119.
- the soot-like substance can be deposited on an appropriate substrate and collected. Alternatively, it can be collected by a method of collecting fine particles using a dust bag.
- an inert gas can be circulated in the reaction vessel, and soot-like substances can be recovered by the flow of the inert gas.
- the soot-like substance obtained using the apparatus of the present embodiment is a carbon nanohorn aggregate.
- 117 mainly, for example, recovered as a substance containing 50 wt% or more of carbon nanohorn aggregates 117.
- the shape, size, diameter, length, shape of the tip, and the distance between the carbon molecules and the carbon nanohorns of the carbon nanohorn constituting the carbon nanohorn assembly 117 are determined by the irradiation conditions of the laser beam 103. Can be controlled in various ways.
- a gear for rotating holding roller 131 may be provided as a mechanism for rotating holding roller 131.
- FIG. 7 is a diagram showing a configuration of the target holding movable section 175 having such a configuration.
- the basic configuration of the target holding movable section 175 in FIG. 7 is the same as that of the target holding movable section 130 in FIG. The difference is that a gear 135 that rotates around 133, a rotation shaft 137 of the gear 135, and a motor 139 that rotates the gear 135 via the rotation shaft 137 are provided.
- the motor 139 is fixed on the rotating shaft retainer 142.
- FIG. 8 illustrates the rotation of the graphite rod 101 in the target holding movable section 175.
- the target holding movable portion 175 rotates the gear 135 by the motor 139, and the rotation of the gear 135 rotates the meshing tooth portion 132, and the holding roller 131 rotates around the rotation axis 133.
- FIG. 9 is a diagram for explaining the position movement of the graphite rod 101 in the target holding movable part 175 in FIG. As shown in FIG. 9, by moving the holding roller 131 and the gear 135 up and down, the irradiation angle of the laser beam 103 irradiated on the graphite rod 101 can be kept constant.
- the configuration for rotating holding roller 131 is not limited to the above configuration.
- a transmission belt for transmitting the rotation of motor 139 may be provided at one end of holding roller 131.
- the nanocarbon manufactured using the manufacturing apparatus of the present embodiment is not limited to the carbon nanohorn aggregate.
- carbon nanotubes can be manufactured using the manufacturing apparatus of the present embodiment.
- the output, spot diameter, and irradiation angle of the laser beam 103 are adjusted so that the power density of the laser beam 103 on the side surface of the graphite rod 101 is almost constant, for example, 50 ⁇ 10 kW / cm 2. Adjustment is preferred.
- the graphite rod 101 is supplemented with, for example, 0.0001 wt% or more and 5 wt% or less of catalytic metal.
- the metal catalyst for example, a metal such as Ni or Co can be used.
- the shape of the graphite target is not limited to a cylindrical shape, and may be a sheet shape, a rod shape, or the like. You can also. Even when the graphite target has a sheet-like or rod-like shape, it is possible to irradiate the entire surface of the graphite target with the laser beam 103 by adopting a configuration having no gripping portion of the target. Ability to improve carbon productivity. [0091] (Example)
- a carbon nanohorn assembly 117 was manufactured using the nanocarbon manufacturing apparatus having the configuration shown in FIGS.
- the graphite rod 101 As the graphite rod 101, a sintered round rod carbon having a diameter of 100mm, a length of 250mm, and a weight of about 3.7kg was used, and this was used as two holding holes 131 of the target holding movable portion 130 in the manufacturing chamber 107. It was placed between. After evacuating the inside of manufacturing chamber 107 to a 10- 3 Pa, Ar gas was introduced so that the atmosphere pressure of 10 5 Pa. Next, the side of the graphite rod 101 was irradiated with the laser beam 103 while rotating the graphite rod 101 at a rotation speed of 6 rpm and moving horizontally at 0.3 mm / sec at room temperature.
- the laser beam 103 a high-output CO laser beam was used.
- Pulse oscillation was performed under the standby condition of 0 msec.
- the irradiation angle of the laser beam 103 was set to 45 °, and the power density on the side of the graphite rod 101 was set to 20 kW / cm 2 soil lOkWZcm 2
- carbon nanohorn aggregates 117 were predominantly formed, and the particle diameter was in a range of 80 nm or more and 120 nm or less.
- the yield of carbon nanohorn aggregates 117 in the whole substance obtained after light irradiation was determined by Raman spectroscopy.
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Abstract
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Priority Applications (2)
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US10/568,386 US20060191781A1 (en) | 2003-08-20 | 2004-08-05 | Apparatus and method for manufacturing nono carbon |
JP2005513264A JPWO2005019103A1 (ja) | 2003-08-20 | 2004-08-05 | ナノカーボン製造装置およびナノカーボンの製造方法 |
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JP2003296227 | 2003-08-20 | ||
JP2003-296227 | 2003-08-20 |
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JP (1) | JPWO2005019103A1 (ja) |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2009539742A (ja) * | 2006-06-09 | 2009-11-19 | スタットオイル エイエスエイ | カーボンナノファイバーの製造 |
CN106430177A (zh) * | 2016-07-29 | 2017-02-22 | 广东工业大学 | 一种限制层作用下的纳米石墨颗粒的激光连续制备方法 |
WO2020158665A1 (ja) * | 2019-01-29 | 2020-08-06 | 日本電気株式会社 | カーボンナノブラシの連続製造用部材および製造方法 |
US11511998B2 (en) | 2018-05-29 | 2022-11-29 | Nec Corporation | Continuous production method of fibrous carbon nanohorn aggregate |
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CN106241774A (zh) * | 2016-08-31 | 2016-12-21 | 无锡东恒新能源科技有限公司 | 一种工业用从石墨中提取碳纳米管的量产装置 |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6338427B2 (ja) * | 1984-03-16 | 1988-07-29 | Kogyo Gijutsu Incho | |
JPS64335B2 (ja) * | 1980-04-13 | 1989-01-06 | Matsushita Electric Ind Co Ltd | |
JP2000249540A (ja) * | 1999-03-02 | 2000-09-14 | Tokyo Seimitsu Co Ltd | 円筒物の形状測定装置及び測定方法 |
-
2004
- 2004-08-05 WO PCT/JP2004/011263 patent/WO2005019103A1/ja active Application Filing
- 2004-08-05 JP JP2005513264A patent/JPWO2005019103A1/ja not_active Withdrawn
- 2004-08-05 CN CNA2004800226765A patent/CN1832903A/zh active Pending
- 2004-08-05 US US10/568,386 patent/US20060191781A1/en not_active Abandoned
- 2004-08-19 TW TW093124941A patent/TWI272247B/zh not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS64335B2 (ja) * | 1980-04-13 | 1989-01-06 | Matsushita Electric Ind Co Ltd | |
JPS6338427B2 (ja) * | 1984-03-16 | 1988-07-29 | Kogyo Gijutsu Incho | |
JP2000249540A (ja) * | 1999-03-02 | 2000-09-14 | Tokyo Seimitsu Co Ltd | 円筒物の形状測定装置及び測定方法 |
Non-Patent Citations (1)
Title |
---|
IIJIMA S. ET AL.: "nano-aggregates of single-walled graphitic carbon nano-horns", CHEMICAL PHYSICS LETTERS, vol. 309, 13 August 1999 (1999-08-13), pages 165 - 170, XP002955889 * |
Cited By (7)
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JP2009539742A (ja) * | 2006-06-09 | 2009-11-19 | スタットオイル エイエスエイ | カーボンナノファイバーの製造 |
CN106430177A (zh) * | 2016-07-29 | 2017-02-22 | 广东工业大学 | 一种限制层作用下的纳米石墨颗粒的激光连续制备方法 |
US11511998B2 (en) | 2018-05-29 | 2022-11-29 | Nec Corporation | Continuous production method of fibrous carbon nanohorn aggregate |
WO2020158665A1 (ja) * | 2019-01-29 | 2020-08-06 | 日本電気株式会社 | カーボンナノブラシの連続製造用部材および製造方法 |
JPWO2020158665A1 (ja) * | 2019-01-29 | 2021-12-02 | 日本電気株式会社 | カーボンナノブラシの連続製造用部材および製造方法 |
JP7156407B2 (ja) | 2019-01-29 | 2022-10-19 | 日本電気株式会社 | カーボンナノブラシの連続製造用部材および製造方法 |
US11981568B2 (en) | 2019-01-29 | 2024-05-14 | Nec Corporation | Member for continuous production of carbon nanobrush, and method for continuous production of carbon nanobrush |
Also Published As
Publication number | Publication date |
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CN1832903A (zh) | 2006-09-13 |
JPWO2005019103A1 (ja) | 2007-10-04 |
US20060191781A1 (en) | 2006-08-31 |
TW200517335A (en) | 2005-06-01 |
TWI272247B (en) | 2007-02-01 |
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