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Apparatus and method for producing continuous carbon nano-tube fibre by liquid sealed vapor-phase flow catalytic reaction

A technology of carbon nanotube fiber and gas phase flow catalysis, which is applied in the fields of fiber chemical characteristics, textiles and papermaking, etc., can solve problems such as difficult carbon nanotube fiber, and achieve the effect of wide application and mild reaction conditions

Inactive Publication Date: 2008-04-02
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since the reaction is a high-temperature hydrogen sealed system, it is difficult to obtain continuous and processable carbon nanotube fibers directly from the reaction

Method used

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  • Apparatus and method for producing continuous carbon nano-tube fibre by liquid sealed vapor-phase flow catalytic reaction
  • Apparatus and method for producing continuous carbon nano-tube fibre by liquid sealed vapor-phase flow catalytic reaction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Water is the sealing liquid medium. Mix ethanol (carbon source), ferrocene (catalyst), thiophene (accelerator), and water according to 23.70g, 0.45g, 0.40g, and 0.66g of ultrasonic to form a solution, and inject the solution through a micro syringe at a speed of 7.0ml / h 600ml / minH 2 In the reaction gas flow, the synthesis reaction is carried out in a quartz tube, and the horizontal tube atmosphere furnace is set at 1150° C. as the reaction temperature. After the reaction starts, it can be observed from the observation mirror that misty carbon nanotube fibers are produced in the quartz tube, and with the flow of the carrier gas flow, the fibers become cylindrical continuous carbon nanotube fibers of 0.5-1.5 cm. The formed carbon nanotube fibers can be directly mechanically manipulated through the water-sealed medium. After the carbon nanotube fibers taken out of the reaction zone pass through the water medium, the diameter becomes about 0.1 cm, the strength increases, a...

Embodiment 2

[0039] With 10% HCl solution as the sealing liquid medium. Mix ethanol, ferrocene, thiophene, and water according to 23.70g, 0.45g, 0.40g, and 0.66g ultrasonically to form a solution, and inject the solution into 600ml / min H at a speed of 7.0ml / h through a microinjector 2In the reaction gas flow, the synthesis reaction is carried out in a quartz tube, and the horizontal tube atmosphere furnace is set at 1150° C. as the reaction temperature. After the reaction starts, it can be observed from the observation mirror that misty carbon nanotube fibers are produced in the quartz tube, and with the flow of the carrier gas flow, the fibers become cylindrical continuous carbon nanotube fibers of 0.5-1.5 cm. The formed carbon nanotube fibers can be directly mechanically manipulated through the water-sealed medium. After the carbon nanotube fibers taken out of the reaction zone pass through the water medium, the diameter becomes about 0.1 cm, the strength increases, and the fiber surface...

Embodiment 3

[0041] With 10% HNO 3 The solution is a sealed liquid medium. Mix ethanol, ferrocene, thiophene, and water according to 23.70g, 0.45g, 0.40g, and 0.66g ultrasonically to form a solution, and inject the solution into 600ml / min H at a speed of 7.0ml / h through a microinjector 2 In the reaction gas flow, the synthesis reaction is carried out in a quartz tube, and the vertical tube atmosphere furnace is set at 1150° C. as the reaction temperature. After the reaction starts, it can be observed from the observation mirror that misty carbon nanotube fibers are produced in the quartz tube, and with the flow of the carrier gas flow, the fibers become cylindrical continuous carbon nanotube fibers of 0.5-1.5 cm. The formed carbon nanotube fibers can be directly mechanically manipulated through the water-sealed medium. After the carbon nanotube fibers taken out of the reaction zone pass through the water medium, the diameter becomes about 0.1 cm, the strength increases, and the fiber surf...

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Abstract

The invention discloses a device and method for preparing continuous carbon nanotube fiber through liquid seal gas phase flow catalytic reaction, wherein, the device is used in completing the following steps: a liquid tank is connected with the quartz tube arranged inside a tube furnace through a flange; the aqueous solution which contain H2O, 10 percent of HCl and 10 percent of PVA is adopted as seal liquid; the mixed solution of ethanol, ferrocene, thiophene and water is injected into 500 ml / minH2 to 1,000 ml / minH2 carrier gas flow through a micro-injection pump and is channeled into the quartz tube through a jet nozzle; reaction is completed under 900 DEG C to 1,200 DEG C high-temperature conditions and tubular continuous carbon nanotube fiber is generated at a reaction zone; finally, the generated carbon nanotube fiber is treated through the seal liquid medium or is directly operated at the reaction zone. The invention realizes direct operation of carbon nanotube fiber at the reaction zone and treatment for the generated fiber so as to obtain continuous carbon nanotube fiber with high purity and high strength; moreover, with moderate reaction conditions, the invention is suitable for large scale production of the carbon nanotube fiber and has wide application range.

Description

technical field [0001] The invention relates to the synthesis of carbon nanotube fibers, in particular to a device and method for preparing continuous carbon nanotube fibers by liquid-sealed gas-phase flow catalytic reaction, which is to synthesize continuous carbon nanotube fibers by liquid-sealed gas-phase flow catalytic reaction and to process the fibers at high temperature. The method of direct treatment in the area and liquid. technical background [0002] Carbon nanotube fibers have super strong and high electrical conductivity properties, and have high thermal conductivity, gas sensitivity, electric field emission and other properties. This new type of high-strength multifunctional fiber has important application prospects in high-strength composite materials, high-conductivity composite materials, new conductive materials, sensors, supercapacitors and artificial muscles. Chinese patent CN1724346 A discloses a method for manufacturing carbon nanotube microfibers from...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F9/12
Inventor 李亚利钟小华候峰张良宏瞧晓花郑洪雷
Owner TIANJIN UNIV
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