Carbon nanofiber felt with porous interconnection structure as well as preparation method and application of carbon nanofiber felt
A technology of carbon nanofibers and interconnection structures, applied in fiber processing, fiber types, textiles and papermaking, etc., can solve problems that are not conducive to electron transfer and conduction, and limit the electrochemical performance of electrodes
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0035] The invention provides a kind of preparation method of carbon nanofiber mat with porous interconnection structure, comprising the following steps:
[0036] (1) mixing polyacrylonitrile, high amylose starch and a polar organic solvent to obtain a spinning precursor solution;
[0037] (2) Spinning the spinning precursor solution on the surface of the substrate to obtain a polyacrylonitrile-high amylose nanofiber felt;
[0038] (3) placing the polyacrylonitrile-high amylose nanofiber mat in glutaraldehyde vapor to carry out a crosslinking reaction to obtain a crosslinked carbon nanofiber mat precursor;
[0039] (4) Pre-oxidizing and carbonizing the cross-linked carbon nanofiber mat precursor in sequence to obtain a carbon nanofiber mat with a porous interconnected structure.
[0040] The present invention has no special requirements on the sources of the raw materials used, and the above-mentioned raw materials conventionally available in the art can be used.
[0041] Th...
Embodiment 1
[0058] Prepare porous interconnect structure carbon nanofiber mat, the method is as follows:
[0059] (1) The preparation mass concentration is the spinning precursor solution of 10%, wherein the precursor solute is polyacrylonitrile (PAN) and high amylose starch (HAS), and solvent is dimethyl sulfoxide (DMSO), polyacrylonitrile and high amylose The mass ratio of starch blending was 4:1. After weighing on the electronic balance, mix it in the conical flask and add the rotor, open the oil bath, put the conical flask into it and stir for at least 12 hours to obtain the spinning precursor solution.
[0060] (2) Draw the prepared precursor solution into the syringe, connect the needle with the power cord from the spinneret with a hose. The syringe is put into the propulsion device, and the oil paper is pasted on the surface of the drum. Set the experimental parameters, the propulsion speed is 1mL / h, the voltage is 20KV, the receiving distance is 18cm, and the drum speed is 200rp...
Embodiment 2
[0069] The difference between Example 2 and Example 1 is that the blending mass ratio of PAN and HAS is 2:1.
[0070] The pore parameters of the obtained carbon nanofibers are shown in Table 1.
[0071] The SEM image of the resulting carbon nanofiber felt Figure 4 shown. Depend on Figure 4 It can be seen that the fibers of the obtained carbon nanofiber mat have an interconnected structure, but the specific surface area and total pore volume of the obtained carbon nanofiber mat are reduced.
PUM
| Property | Measurement | Unit |
|---|---|---|
| Specific surface area | aaaaa | aaaaa |
| Total pore volume | aaaaa | aaaaa |
| Thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More