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Co-doped micro-sphere-carbon fiber composite material and preparation method thereof

A composite material and microsphere technology, which is applied in the fields of chemical characteristics of fibers, rayon manufacturing, textiles and papermaking, etc., can solve the problems of wide application of carbon micro-nanosphere composite materials, cumbersome process, expensive equipment, etc., and achieves low cost, The effect of easy availability of raw materials and simple preparation method

Active Publication Date: 2017-06-13
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The equipment used in these methods is expensive and the process is cumbersome, which is not conducive to the wide application of the prepared carbon micro-nanosphere composite materials.

Method used

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  • Co-doped micro-sphere-carbon fiber composite material and preparation method thereof
  • Co-doped micro-sphere-carbon fiber composite material and preparation method thereof
  • Co-doped micro-sphere-carbon fiber composite material and preparation method thereof

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preparation example Construction

[0029] The present invention firstly provides a kind of preparation method of the microsphere-carbon fiber composite material of co-doping, and this method comprises the following steps:

[0030] Step 1: adding the polymer material into the MOFs solution and stirring to obtain a mixed solution;

[0031] Step 2: Electrospinning the mixed solution obtained in Step 1 under the conditions of a voltage of 15-20kV, a distance of 15-20cm, and a speed of 1-5ml / h to obtain the electrospun material;

[0032] Step 3: Put the electrospun material obtained in Step 2 into a quartz boat, raise the temperature to 700-900° C. under nitrogen protection, and heat-treat for 1-3 hours to obtain a co-doped microsphere-carbon fiber composite material.

[0033] According to the present invention, MOFs solution is prepared first, and described MOFs solution is obtained after dissolving MOFs material in a solvent and carrying out ultrasonic dissolution, and described solvent is preferably dimethylforma...

Embodiment 1

[0040] 1) Disperse 0.1g of zeolite imidazolate skeleton structure (ZIF-67) in 5ml of dimethylformamide (DMF), and sonicate for 1h;

[0041] 2) Weigh 0.3g of PVP and slowly add to the above solution, stir overnight;

[0042] 3) Put the stirred solution into a 5ml disposable syringe, use a 7# stainless steel needle, set a voltage of 16kV, a distance of 16cm, a speed of 5ml / h, and perform electrospinning;

[0043] 4) The above materials were heated in an oven at 150°C for 12 hours, then put into a quartz boat, and the temperature was programmed to rise to 700°C under the protection of nitrogen, and heat treated for 3 hours to obtain the microsphere-carbon fiber composite material.

[0044] figure 1 The scanning electron microscope (SEM) figure of the microsphere-carbon fiber composite material prepared for the embodiment of the present invention 1; From figure 1 It can be seen that the composite material with microsphere-carbon fiber structure was successfully prepared in Examp...

Embodiment 2

[0046] 1) Disperse 0.3g of zeolite metal-organic framework material (ZIF-8) in 5ml of DMF, sonicate for 1h;

[0047] 2) Weigh 0.3g of PAN and slowly add to the above solution, and stir overnight;

[0048] 3) Put the stirred solution into a 5ml disposable syringe, use a 7# stainless steel needle, set the voltage to 20kV, the distance is 20cm, and the speed is 2ml / h. perform electrospinning;

[0049]4) The above materials were heated in an oven at 200°C for 12 hours, then put into a quartz boat, and the temperature was programmed to rise to 700°C under the protection of nitrogen, and heat treated for 3 hours to obtain the microsphere-carbon fiber composite material.

[0050] figure 2 The scanning electron microscope (SEM) picture of the microsphere-carbon fiber composite material prepared for the embodiment of the present invention 2; From figure 2 It can be seen that the composite material with microsphere-carbon fiber structure was successfully prepared in Example 2 of th...

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Abstract

The invention provides a co-doped micro-sphere-carbon fiber composite material and a preparation method thereof and belongs to the technical field of preparation of micro-nano composite materials. The method comprises the following steps: adding a high molecular material into a MOFs solution and stirring to obtain a mixed solution; carrying out electrostatic spinning on the mixed solution; putting a material subjected to the electrostatic spinning into a quartz boat and raising the temperature to be 700 DEG C to 900 DEG C under the protection of nitrogen gas; and carrying out heat treatment for 1h-3h to obtain the co-doped micro-sphere-carbon fiber composite material. The invention further provides the co-doped micro-sphere-carbon fiber composite material prepared by the preparation method. The preparation method is simple and raw materials are easy to obtain; and the composite material has very good electrochemical catalysis properties and can be widely applied to the aspects including oxygen reduction, oxygen releasing, hydrogen releasing and the like.

Description

technical field [0001] The invention belongs to the technical field of micro-nano composite material preparation, and in particular relates to a co-doped microsphere-carbon fiber composite material and a preparation method thereof. Background technique [0002] The heteroatom co-doped micro-nanosphere-carbon fiber composite material has abundant pores, large specific surface area, good conductivity and hydrophilic properties, etc., and has unique advantages in fuel cells, biosensing, supercapacitors, etc. Advantages and good development potential. On the other hand, metal-organic frameworks (MOFs) are crystalline materials formed by the connection of metal ions or metal clusters with rigid organic ligands through coordinate bonds and have an infinite network structure, consisting of inorganic and organic parts. The diversity of MOFs materials makes them have a wide range of application prospects. [0003] At present, the preparation methods of heteroatom-doped micro-nanosp...

Claims

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Application Information

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IPC IPC(8): D01F9/22D01F9/21D01F1/10
CPCD01F1/10D01F9/21D01F9/22
Inventor 杨文秀郏建波
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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