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A kind of preparation method of carbon nanotube/cotton composite

A carbon nanotube and multi-walled carbon nanotube technology, which is applied in the field of preparation of flexible electrode materials, can solve the problems of unfavorable mass production, low efficiency, complicated operation process, etc., and achieves the advantages of mass production, good flexibility, and improved specific capacitance. Effect

Inactive Publication Date: 2018-04-06
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the method is cumbersome and inefficient, which is not conducive to mass production.

Method used

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  • A kind of preparation method of carbon nanotube/cotton composite
  • A kind of preparation method of carbon nanotube/cotton composite
  • A kind of preparation method of carbon nanotube/cotton composite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A kind of processing method of L-MWCNT / cotton compound, concrete steps are:

[0034] (1) Acidification modification treatment of carbon nanotubes:

[0035] a. Add 1.5g L-MWCNT and 300mL concentrated nitric acid into a 500mL three-necked flask, and reflux for 10h in a collector type constant temperature heating magnetic stirrer;

[0036] b. After treatment, cool to room temperature, filter, wash with deionized water until the filtrate is neutral, place the obtained black powder in an oven, and dry at 60°C to obtain acidified modified L-MWCNT, which is stored for later use.

[0037] (2) Preparation of carbon nanotube solution:

[0038] The carbon nanotube dispersion was prepared by ultrasonically dispersing the acidified modified L-MWCNT and SDBS in distilled water at a mass ratio of 1:1 for 1 h.

[0039] (3) Preparation of carbon nanotube / cotton composite

[0040] a. Put the cotton fabric and the prepared carbon nanotube solution (bath ratio is 1:50) in a constant tem...

Embodiment 2

[0043] A kind of processing method of S-MWCNT / cotton compound, concrete steps are:

[0044] a. Add 1.5g S-MWCNT and 300mL concentrated nitric acid into a 500mL three-necked flask, and reflux for 10h in a collector-type constant temperature heating magnetic stirrer;

[0045] b. After treatment, cool to room temperature, filter, wash with deionized water until the filtrate is neutral, place the obtained black powder in an oven, and dry at 60°C to obtain acidified modified S-MWCNT, which is stored for later use.

[0046] (2) Preparation of carbon nanotube solution:

[0047] The carbon nanotube dispersion was prepared by ultrasonically dispersing the acidified modified S-MWCNT and SDBS in distilled water at a mass ratio of 1:1 for 1 h.

[0048] (3) Preparation of carbon nanotube / cotton composite

[0049] a. Put the cotton fabric and the prepared carbon nanotube solution (bath ratio is 1:50) in a constant temperature oscillating water bath for treatment. After holding for 30 min...

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Abstract

The invention relates to a preparation method of a carbon nanotube / cotton composite, comprising mixing multi-walled carbon nanotubes modified after acidification with sodium dodecylsulfonate SDBS, and ultrasonically dispersing to obtain a carbon nanotube dispersion; The fabric is treated with the carbon nanotube dispersion, cooled to room temperature, taken out, washed, and dried at room temperature. The composite of the present invention is light in weight and good in flexibility, and can be used in the field of flexible electrode materials; more importantly, the composite material can be used as a base material for other electrode materials, which is beneficial to improving the overall conductivity and specific capacitance; the preparation method is simple and easy , avoiding the complex process of repeated "dipping-drying" in the past, which is time-saving and efficient, and is conducive to mass production.

Description

technical field [0001] The invention belongs to the field of preparation of flexible electrode materials, in particular to a preparation method of a carbon nanotube / cotton composite. Background technique [0002] With the development of society, people's demand for energy is increasing year by year, and the discovery and development of new energy has become a top priority. As an energy storage element, supercapacitors have attracted more and more attention, and they are widely used in mobile phones, computers, electric vehicles, and medical fields. In supercapacitors, the electrode material is the key to its performance. The common electrode materials mainly include carbon materials, metal oxides and conductive polymers. Among them, carbon nanotubes are a widely studied class of carbon materials. [0003] Carbon nanotubes were discovered by Japanese scientist SumioIijima in 1991. It is a typical one-dimensional nanomaterial with a length of microns and a diameter of nanome...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/86H01G11/30H01G11/36
CPCY02E60/13
Inventor 俞丹王炜郝天琪王玉
Owner DONGHUA UNIV