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Preparation method of copper substrate surface growth fullerene doped porous carbon nanofibers

A nanofiber, surface growth technology, applied in nanocarbon, chemical instruments and methods, catalyst activation/preparation, etc., can solve the problem of low fullerene hybridization efficiency, restricting the practical application and process of fullerene hybrid composite materials. Complex problems, to achieve the effects of excellent physical and chemical properties, cost savings, and simple process

Inactive Publication Date: 2012-09-12
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods have very strict requirements on the experimental environment, the process is very complicated, and the efficiency of fullerene hybridization is very low, which directly restricts the practical application of fullerene hybrid composites.

Method used

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  • Preparation method of copper substrate surface growth fullerene doped porous carbon nanofibers
  • Preparation method of copper substrate surface growth fullerene doped porous carbon nanofibers
  • Preparation method of copper substrate surface growth fullerene doped porous carbon nanofibers

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Mechanically polish a copper sheet with a diameter of 12mm and a thickness of 3mm. After polishing, place the copper sheet in 50ml of distilled aqueous solution for ultrasonic cleaning for 10 minutes, and then place it in 50ml of acetone solution and alcohol solution for 10 minutes. After cleaning, the copper sheet was blown dry at room temperature, and then subjected to argon plasma treatment for 1 min after drying. Then configure the mixed aqueous solution of ferric nitrate nonahydrate and yttrium nitrate hexahydrate as the catalyst solution, wherein the concentration of ferric nitrate is 0.02mol / L, and the mass ratio of iron to yttrium is 2:1; Fe / Y catalyst solution with a layer concentration of 0.02mol / L, and then put the copper sheet into a vacuum drying oven and dry it under vacuum at 80°C for 1h to obtain the Fe / Y / Cu catalyst precursor; then the obtained Fe / Y / Put the Cu catalyst precursor into a quartz boat, place the quartz boat in the constant temperature zone...

Embodiment 2

[0027] Take the thickness as 50μm and the size as 2×3cm 2 The sample copper foil was cleaned and dried as in Example 1, and then treated with argon plasma for 1 min. Then prepare a mixed aqueous solution of iron nitrate nonahydrate and yttrium nitrate hexahydrate as a catalyst solution, wherein the concentration of iron nitrate is 0.0001 mol / L, and the mass ratio of iron and yttrium is 1:1. Then impregnate a layer of Fe / Y catalyst solution with a concentration of 0.0001mol / L on the copper sheet treated with argon plasma, and then put the copper sheet in a vacuum drying oven and dry it in vacuum at 100°C for 1 hour to obtain Fe / Y / Cu Catalyst precursor; then the obtained Fe / Y / Cu catalyst precursor is put into a quartz boat, and the quartz boat is placed in the constant temperature zone in the middle of the reaction tube; the temperature is raised to 200°C under the protection of argon, and the flow rate of argon is 100sccm , and calcined at 200°C for 1 hour, then the temperatur...

Embodiment 3

[0029] Take the thickness as 10μm and the size as 2×3cm 2 The sample copper foil was cleaned and dried as in Example 1, and then the copper foil was oxidized in air at 200° C. for 2 hours. Then prepare a mixed aqueous solution of iron nitrate nonahydrate and yttrium nitrate hexahydrate as a catalyst solution, wherein the concentration of iron nitrate is 1 mol / L, and the mass ratio of iron and yttrium is 5:1. Then impregnate a layer of Fe / Y catalyst solution with a concentration of 1mol / L on the copper sheet treated with argon plasma, and then put the copper sheet into a vacuum drying oven and dry it under vacuum at 100°C for 1 hour to obtain Fe / Y / Cu catalyst Precursor; then the Fe / Y / Cu catalyst precursor obtained is put into a quartz boat, and the quartz boat is placed in the constant temperature zone in the middle of the reaction tube; the temperature is raised to 400°C under argon protection, and the argon flow rate is 200sccm, And calcined at 400°C for 4 hours, then the te...

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Abstract

The invention discloses a preparation method of copper substrate surface growth fullerene doped porous carbon nanofibers. The preparation method adopts the following process of 1 preparing a precursor of a composite catalyst, firstly preparing mixed nitrate catalyst solution containing catalysis element Fe, Co or Ni and nucleation element Y or La, enabling the mass ratio of the catalysis element and the nucleation element to be 0.1-10, then adopting a dipping coating method to load a layer of composite catalyst solution on the copper substrate after surface modification, and finally enabling the copper substrate to be placed in a vacuum drying oven to dry for 1 hours at the temperature of 80-100 DEG C to obtain the copper substrate with the composite catalyst precursor which is even in distribution; and 2 adopting a chemical vapor deposition technique (CVD) to directly conduct self-assembly on the copper substrate surface to prepare composite materials of copper substrate surface growth fullerene doped porous carbon nanofibers.

Description

technical field [0001] The invention relates to a composite material preparation technology, in particular to designing a novel composite catalyst and a preparation method for growing fullerene-doped porous carbon nanofibers on the surface of a copper substrate by a chemical vapor deposition method. Background technique [0002] Fullerene is the third allotrope of carbon discovered after diamond and graphite. 60 or C 70 A general term for a group of fullerene-like carbon molecules. Since Smalley et al. first obtained C in the product of graphite irradiated by laser beams on September 4, 1985 60 The presence of intercalated metallofullerenes was observed in less than a week after the mass spectra of the samples. Subsequently, in 1991, Iijima of NEC Corporation discovered carbon nanotubes (CNTs). Due to the unique physical and chemical properties and huge potential application value of fullerenes and CNTs, they have attracted the keen interest of many scientists and quickl...

Claims

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Application Information

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IPC IPC(8): B01J23/83B01J37/00C01B31/02C01B32/15
Inventor 康建立赵乃勤秦凯强张虎师春生孙荣禄乔志军
Owner TIANJIN POLYTECHNIC UNIV