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Burner for synthesizing nanometer carbon pipe by V-type and conical type pyrolytic flame and its synthesizing method

A flame synthesis, carbon nanotube technology, applied in the fields of nanotechnology, nanotechnology, nanostructure manufacturing, etc., can solve the problem of no continuous batch, controllable, large-scale, large-scale synthesis of carbon nanotube flames, etc. effect of control

Inactive Publication Date: 2008-08-20
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] So far, there is no continuous batch, controllable, large-scale, large-scale flame method for synthesizing carbon nanotubes

Method used

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  • Burner for synthesizing nanometer carbon pipe by V-type and conical type pyrolytic flame and its synthesizing method
  • Burner for synthesizing nanometer carbon pipe by V-type and conical type pyrolytic flame and its synthesizing method

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Embodiment Construction

[0010] The present invention is to provide a burner and a synthesis method for synthesizing carbon nanotubes with a V-shaped or conical pyrolysis flame. The invention will be described below in conjunction with the accompanying drawings.

[0011] figure 1 Shown is a schematic diagram of a V-shaped isosceles pyrolysis flame burner. In the figure, a rectangular parallelepiped burner 3 with one end open is provided with a V-shaped isosceles body 1 with two open ends and a rectangular center tube 2 through which reactant mixture gas, inert gas and metal catalyst nanoparticles pass, and the center tube 2 is connected with V-shaped etc. The opening of the head of the waist body 1 is connected, the front and rear sides of the V-shaped isosceles body 1 are flush and closed with the front and rear side walls of the burner 3, and the space between the left and right sides of the V-shaped isosceles body 1 and the left and right side walls of the burner 3 is communicated. The combustible...

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Abstract

A burner with V-shaped and conic thermodecomposing flame for synthesizing carbon nanotubes features that the combustible mixed gas is burning in the V-shaped or conic structure of burner to provide stable high-temp source, the mixed gas, inertial gas and metallic catalyst nanoparticles pass through central tube to provide heat source, carbon source and catalyst for obtain carbon nanotubes in the burner and at its outlet, and a continuous conveying belt sampling mechanism is used.

Description

technical field [0001] The invention belongs to the technical field of carbon nanotube synthesis, and in particular provides a burner and a synthesis method for synthesizing carbon nanotubes with a V-shaped or conical pyrolysis flame. Background technique [0002] In 1991, Japanese scholar Iijima first discovered carbon nanotubes (Carbon nanotubes, CNTs). At present, there are mainly four synthesis methods of carbon nanotubes: arc discharge, laser vaporization, chemical vapor deposition (CVD) and flame synthesis. The first three synthesis methods are complicated in equipment and high in cost, and are suitable for small-scale, small-scale, and intermittent operations. The flame synthesis method has the potential of continuous preparation under atmospheric conditions, simple equipment, energy saving, low cost, large size, and large-scale batch preparation. At present, the representative researches on the flame synthesis method mainly include the following: [0003] NASA Van...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B31/02B82B3/00
Inventor 孙保民赵惠富
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)