CN107934955A - A kind of method of activation process commercialization carbon cloth - Google Patents
A kind of method of activation process commercialization carbon cloth Download PDFInfo
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- CN107934955A CN107934955A CN201711146631.4A CN201711146631A CN107934955A CN 107934955 A CN107934955 A CN 107934955A CN 201711146631 A CN201711146631 A CN 201711146631A CN 107934955 A CN107934955 A CN 107934955A
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- carbon cloth
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/03—Particle morphology depicted by an image obtained by SEM
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/40—Electric properties
Abstract
A kind of method of activation process commercialization carbon cloth disclosed by the invention, step include：Using commercial carbon cloth as raw material, it will be placed in by the carbon cloth of surface cleaning in Muffle furnace, activation process is after a certain period of time in 400~500 DEG C of air atmosphere, you can the commercial carbon cloth activated.The present invention directly carries out activation process using atmospheric environment to carbon cloth first, and without any inert gas shielding and atmosphere and solution treatment, activating process process is environmentally friendly, controllable, extremely simple, low production cost is operated, suitable for large-scale industrialized production.The commercial carbon cloth material of flexibility after activated processing can be used directly as the electrode or collector of wearable novel battery or flexible super capacitor, it is expected to, as the carrier of catalyst or adsorbent, oxidative degradation material, desulfurization or material for air purification etc., be applied in electronic device, the energy and environmental area at the same time.
Description
Technical field
The present invention relates to commercial carbon cloth to activate field, and in particular to a kind of activation process commercialization carbon cloth is (referred to as ' commercial
Carbon cloth ') process, the method for the commercial carbon cloth of activation that can be especially applied on a large scale in industrialization production.
Background technology
With the development of science and technology, people are unprecedentedly surging to the demand of wearable electronic device, exploitation can give the electron-like
It is particularly important that flexible energy storage device of device energy supply.Ultracapacitor has traditional capacitance concurrently as a kind of new energy storage device
The advantages of device and secondary cell, there is extensive and far-reaching application prospect in each field.Flexible super capacitor possesses higher
Energy density, faster charge/discharge rates, longer cyclical stability, is paid close attention to be subject to many scholars, becomes what is studied now
One of hot spot.And prepare and meet actual demand, and easy controllable inexpensive ultracapacitor is faced with huge challenge.Super electricity
Three large electrode materials of container are carbon-based material, metal oxide, and conducting polymer.On the one hand, in this three major types material
In, although metal oxide and conducting polymer, with very high specific capacitance, high power density, prevailing price is expensive, circulation
Performance and stability are poor, and easily cause environmental pollution.And carbon-based material is because with abundance, specific surface area is big, electric conductivity is good
Well, the advantages that power density is high and of low cost, is the main electrode material of commercialized ultracapacitor.On the other hand, it is
Prepare flexible ultracapacitor, many workers by active material, electrolyte, binding agent, conductive agent, membrane, collector,
Packaging body etc. combines one device of composition, and for whole device, shared ratio is seldom wherein for active material.From
And cause the capacitance very little based on whole device, it is impossible to meet the needs of actual.As patent of invention CN104795251A is disclosed
A kind of preparation method of ultracapacitor, this method can obtain a kind of porous carbon dust of seaweed silicate-base of high-specific surface area
End.Since the material shape is powder, flexible device cannot be used directly for.And many growths directly in substrate form flexible device
The film of part causes the capacitance very little of whole device also due to the small active material quality of the substrate specific surface area used is few.Therefore,
The exploitation of high performance-price ratio flexible electrode material, and it is that current scientific research personnel most needs to be allowed to walk out laboratory, realize industrialization production
The critical problem of solution.
Commercial carbon cloth be a kind of phosphorus content 95% above by carbon material yarn fabric made from traditional approach.Business
Carbon cloth not only has an intrinsic attribute of carbon material, at the same but also with textile pliability, machinability, high specific strength,
Good creep-resistant property, low-density, good heat endurance and chemical stability, relatively low thermal coefficient of expansion and higher
The excellent properties such as electrical conductivity, are largely widely used as the base material or collector of flexible electrode under study for action.Ground many
In studying carefully, different inorganic material has been able to successfully grow nanostructured on commercial carbon cloth, so as to improve composite wood
The chemical property of material, shows huge business potential.As disclosed one kind in patent ZL01010610593.5 on carbon cloth
The method of carbon nano-particle is grown, this method can produce uniform carbon nano-particle on carbon cloth, be used to prepare flexible field and cause
Electron emission cold cathode device.And for example a kind of self-supporting super capacitor electrode material disclosed in patent CN102087921A and its
Preparation method, manganese oxide are directly grown on carbon nano-fiber, form self-supporting flexible electrode composite material.However, due to business
Carbon cloth surface is smooth, specific surface area very little, and itself shows chemical inertness, therefore the ratio electricity of commercial carbon cloth
Hold (1~2F ﹒ g-1,~10mF ﹒ cm-2) well below some other carbon materials, such as：Graphene (100~200F ﹒ g-1), it is single
Wall carbon nano tube (100~200F ﹒ g-1) etc..Just because of this it is a series of the reason for, in industrialization production and laboratory research very
Major general's commercialization carbon cloth is used directly as electrode material, this obviously strongly limit the application to commercial carbon cloth.Therefore, have very much
Necessity activates commercial carbon cloth using suitable method, improves its roughness so that the commercial carbon cloth being activated have compared with
Big specific surface area, appropriate functional group, so that commercial carbon cloth can be directly as with the soft of good chemical property
Property electrode material use.There is more carbon cloth activating treatment method at present, as patent CN104562631A uses Anodic
The surface treatment method of oxidation carries out activation carbon cloth, and CN05869923A realizes that activation is opened using the method for solution dipping recrystallization
Hole, improves the activity and roughness of carbon fiber surface.Other also have gaseous oxidation, liquid phase oxidation, corona treatment, gas phase to sink
Product, electrochemical deposition etc..But the proportioning that almost all of method is required for carrying out reagent or atmosphere adjusts and inert gas shielding,
Treatment process is relatively complicated, of high cost, easily fiber bodies are caused to damage so that material comprehensive performance declines.
The content of the invention
The object of the present invention is to provide a kind of processing method is extremely simple, industrialization strong applicability, of low cost, energy consumption
It is low, function admirable, the method for the obvious activation process commercialization carbon cloth of activation effect.
The purpose of the present invention is the commercial carbon cloth of activation, the specific capacitance of itself is increased substantially, is specifically comprised the following steps：
(1) commercial carbon cloth is cleaned, obtains the carbon cloth of surface cleaning；
(2) the cleaning commercialization carbon cloth that step (1) obtains is placed in Muffle furnace, is carried out under surrounding air atmosphere at activation
Reason, treatment temperature are 400~500 DEG C, 1~3h of duration；
(3) after reaction, you can the commercial carbon cloth activated.
In above-mentioned technical proposal, the carbon cloth is hydrophilic or hydrophobic commercial carbon cloth.
Preferably, the treatment temperature is 450 DEG C, reaction time 2h.
After above-mentioned activation process, activation carbon cloth mass area ratio is about 12mg ﹒ cm-2, area specific capacitance can reach
1350.2mF ﹒ cm-2, quality specific capacitance can reach 112.5F ﹒ g-1。
Compared with prior art, main advantages of the present invention are as follows：
Activating treatment method technique in the present invention is simple, it is time-consuming it is short, cost is low, can high-volume it is real in the industrial production
It is existing.Good by the activation commercialization carbon cloth specific capacitance height of this method acquisition, pliability, high-temperature process can improve carbon cloth fiber
Surface roughness so that the carbon cloth being activated has bigger specific surface area, so as to improve the chemical property of material.This
Invention preparation method is easy, and reaction system is open system, mild condition, environmentally protective, controllability, applicability, portability
By force, of low cost, energy consumption is low, and suitable for industrialization production, the activation commercialization carbon cloth material of preparation is expected in flexible energy storage device
The electronics such as electrode, the carrier of catalyst or adsorbent, desulfurization or material for air purification, energy and environment field, which obtain, extensively should
With.
Brief description of the drawings
Fig. 1 is the field emission scanning electron microscope on commercial carbon fiber cloth material surface of the embodiment 1 without activation process
Photo.
Fig. 2 is the field emission scanning electron microscope photo on the commercial carbon fiber cloth material surface of activation prepared by embodiment 1.
Fig. 3 exists for commercial carbon cloth after 1~5 activated processing of commercial carbon cloth and embodiment of the embodiment 1 without activation process
100mV ﹒ s-1Cyclic voltammetry curve figure under sweep speed.
Fig. 4 is specific capacitance value of the commercial carbon cloth under different discharge current densities after 1~5 activated processing of embodiment.
Fig. 5 is specific capacitance value of the commercial carbon cloth under different voltages sweep speed after 1~5 activated processing of embodiment.
Embodiment
The present invention is further explained with reference to embodiments, but the present invention is not limited solely to following embodiments.
Embodiment 1
(1) 2.5 × 2.5cm of size is chosen2, thickness be 0.35mm commercial carbon cloth be raw material, carbon cloth surfaces are through anhydrous second
After alcohol cleaning, with deionized water ultrasound vibration washing, drying.
(2) the cleaning carbon cloth that step (1) obtains is placed in Muffle furnace, at a temperature of surrounding air atmosphere and 400 DEG C into
Activation process when row 1 is small；
(3) after reaction, that is, the carbon cloth activated.
Field emission scanning electron microscope photo before and after products obtained therefrom respectively as shown in Figure 1, 2, tie by surface topography observation
Fruit shows that the commercial carbon cloth fiber surface without activation process is smooth, and after activation process, carbon cloth fiber surface has flat
Flat air bubble-shaped coarse structure.Electro-chemical test is carried out to prepared activation commercialization carbon cloth, as a result as shown in Figure 4,5.To the production
Product carry out the charge-discharge test under different discharge current densities, 1mA ﹒ cm-2Under discharge current density, specific capacitance is 27.7mF ﹒
cm-2, 50mA ﹒ cm-2Under discharge current density, area specific capacitance still has 8mF ﹒ cm-2；Surveyed in different sweep speed cyclic voltammetrics
In examination, 2mV ﹒ s-1Sweep speed under, area specific capacitance is 62.61mF ﹒ cm-2, 100mV ﹒ s-1Sweep speed under, area ratio
Capacitance still has 26.51mF ﹒ cm-2。
Embodiment 2
(1) 2.5 × 2.5cm of size is chosen2, thickness be 0.35mm commercial carbon cloth be raw material, carbon cloth surfaces are through anhydrous second
After alcohol cleaning, with deionized water ultrasound vibration washing, drying.
(2) the cleaning carbon cloth that step (1) obtains is placed in Muffle furnace, at a temperature of surrounding air atmosphere and 450 DEG C into
Activation process when row 1 is small；
(3) after reaction, that is, the carbon cloth activated.
Electro-chemical test is carried out to prepared activation commercialization carbon cloth, as a result as shown in Figure 4,5.The product is carried out not
With the charge-discharge test under discharge current density, 1mA ﹒ cm-2Under discharge current density, specific capacitance is 642.2mF ﹒ cm-2, 50mA ﹒
cm-2Under discharge current density, area specific capacitance still has 538mF ﹒ cm-2；In different sweep speed cyclic voltammetries,
2mV ﹒ s-1Sweep speed under, area specific capacitance is 643.54mF ﹒ cm-2, 100mV ﹒ s-1Sweep speed under, area specific capacitance
Still there are 506.56mF ﹒ cm-2。
Embodiment 3
(1) 2.5 × 2.5cm of size is chosen2, thickness be 0.35mm commercial carbon cloth be raw material, carbon cloth surfaces are through anhydrous second
After alcohol cleaning, with deionized water ultrasound vibration washing, drying.
(2) the cleaning carbon cloth that step (1) obtains is placed in Muffle furnace, at a temperature of surrounding air atmosphere and 450 DEG C into
Activation process when row 2 is small；
(3) after reaction, that is, the carbon cloth activated.
Electro-chemical test is carried out to prepared activation commercialization carbon cloth, as a result as shown in Figure 4,5.The product is carried out not
With the charge-discharge test under discharge current density, 1mA ﹒ cm-2Under discharge current density, specific capacitance is 1100.6mF ﹒ cm-2,
50mA ﹒ cm-2Under discharge current density, area specific capacitance still has 780mF ﹒ cm-2；In different sweep speed cyclic voltammetries
In, 2mV ﹒ s-1Sweep speed under, area specific capacitance is 1136.72mF ﹒ cm-2, 100mV ﹒ s-1Sweep speed under, area ratio
Capacitance still has 664.32mFcm-2。
Embodiment 4
(1) 2.5 × 2.5cm of size is chosen2, thickness be 0.35mm commercial carbon cloth be raw material, carbon cloth surfaces are through anhydrous second
After alcohol cleaning, with deionized water ultrasound vibration washing, drying.
(2) the cleaning carbon cloth that step (1) obtains is placed in Muffle furnace, at a temperature of surrounding air atmosphere and 450 DEG C into
Activation process when row 3 is small；
(3) after reaction, that is, the carbon cloth activated.
Electro-chemical test is carried out to prepared activation commercialization carbon cloth, as a result as shown in Figure 4,5.The product is carried out not
With the charge-discharge test under discharge current density, 1mA ﹒ cm-2Under discharge current density, specific capacitance is 1350.2mF ﹒ cm-2,
50mA ﹒ cm-2Under discharge current density, area specific capacitance still has 672mF ﹒ cm-2；In different sweep speed cyclic voltammetries
In, 2mV ﹒ s-1Sweep speed under, area specific capacitance is 1342.78mF ﹒ cm-2, 100mV ﹒ s-1Sweep speed under, area ratio
Capacitance still has 442.29mFcm-2。
Embodiment 5
(1) 2.5 × 2.5cm of size is chosen2, thickness be 0.35mm commercial carbon cloth be raw material, carbon cloth surfaces are through anhydrous second
After alcohol cleaning, with deionized water ultrasound vibration washing, drying.
(2) the cleaning carbon cloth that step (1) obtains is placed in Muffle furnace, at a temperature of surrounding air atmosphere and 500 DEG C into
Activation process when row 1 is small；
(3) after reaction, that is, the carbon cloth activated.
Electro-chemical test is carried out to prepared activation commercialization carbon cloth, as a result as shown in Figure 4,5.The product is carried out not
With the charge-discharge test under discharge current density, 1mA ﹒ cm-2Under discharge current density, specific capacitance is 1205.2mF ﹒ cm-2,
50mA ﹒ cm-2Under discharge current density, area specific capacitance still has 482mF ﹒ cm-2；In different sweep speed cyclic voltammetries
In, 2mV ﹒ s-1Sweep speed under, area specific capacitance is 1233.95mF ﹒ cm-2, 100mV ﹒ s-1Sweep speed under, area ratio
Capacitance still has 426.65mFcm-2。
Claims (4)
- A kind of 1. method of activation process commercialization carbon cloth, it is characterised in that include the following steps：(1) commercial carbon cloth is cleaned, obtains the commercial carbon cloth of surface cleaning；(2) the cleaning commercialization carbon cloth that step (1) obtains is placed in Muffle furnace, under surrounding air atmosphere, carries out activation process, Treatment temperature is 400~500 DEG C, 1~3h of duration；(3) after reaction, that is, the commercial carbon cloth activated.
- 2. the method for activation process commercialization carbon cloth according to claim 1, it is characterised in that the commercial carbon cloth For hydrophilic or hydrophobic commercial carbon cloth.
- 3. the method for activation process commercialization carbon cloth according to claim 1, it is characterised in that the reaction temperature is 450 DEG C, reaction time 2h.
- 4. the activation carbon cloth that method according to claims 1 to 3 is handled, it is characterised in that the activation carbon cloth Mass area ratio be 12mg ﹒ cm-2, area specific capacitance is up to 1350mF ﹒ cm-2, quality specific capacitance is up to 112.5F ﹒ g-1。
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| CN201711146631.4A CN107934955B (en) | 2017-11-17 | 2017-11-17 | Method for activating commercial carbon fiber cloth |
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| CN201711146631.4A CN107934955B (en) | 2017-11-17 | 2017-11-17 | Method for activating commercial carbon fiber cloth |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108767302A (en) * | 2018-06-19 | 2018-11-06 | 杭州电子科技大学 | The method for discarding rice husk is handled using MFC |
| CN108832162A (en) * | 2018-06-19 | 2018-11-16 | 杭州电子科技大学 | The experimental system of discarded rice husk is handled using MFC |
| CN109686595A (en) * | 2019-01-18 | 2019-04-26 | 三峡大学 | A kind of activation method and its supercapacitor applications of conduction carbon cloth |
| CN109786717A (en) * | 2019-01-30 | 2019-05-21 | 陕西科技大学 | A kind of sodium-ion battery cathode SnO2The preparation method of/carbon cloth composite material |
| CN109817934A (en) * | 2019-01-30 | 2019-05-28 | 陕西科技大学 | A kind of hydro-thermal calcination method preparation carbon coating Sn/SnO2The method of/carbon cloth negative electrode material |
| CN109972160A (en) * | 2019-04-23 | 2019-07-05 | 重庆文理学院 | A kind of preparation method of novel double-function catalyzing electrolysis water electrode |
| CN110302794A (en) * | 2019-06-19 | 2019-10-08 | 西安交通大学 | A kind of NiAlV ternary metal hydroxide nano chip arrays composite material and preparation method based on flexible carbon substrate |
| CN111128562A (en) * | 2020-01-07 | 2020-05-08 | 广东电网有限责任公司电力科学研究院 | Activated carbon fiber paper and preparation method and application thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108767302A (en) * | 2018-06-19 | 2018-11-06 | 杭州电子科技大学 | The method for discarding rice husk is handled using MFC |
| CN108832162A (en) * | 2018-06-19 | 2018-11-16 | 杭州电子科技大学 | The experimental system of discarded rice husk is handled using MFC |
| CN109686595A (en) * | 2019-01-18 | 2019-04-26 | 三峡大学 | A kind of activation method and its supercapacitor applications of conduction carbon cloth |
| CN109686595B (en) * | 2019-01-18 | 2020-11-10 | 三峡大学 | Activation method of conductive carbon cloth and application of supercapacitor of conductive carbon cloth |
| CN109786717A (en) * | 2019-01-30 | 2019-05-21 | 陕西科技大学 | A kind of sodium-ion battery cathode SnO2The preparation method of/carbon cloth composite material |
| CN109817934A (en) * | 2019-01-30 | 2019-05-28 | 陕西科技大学 | A kind of hydro-thermal calcination method preparation carbon coating Sn/SnO2The method of/carbon cloth negative electrode material |
| CN109972160A (en) * | 2019-04-23 | 2019-07-05 | 重庆文理学院 | A kind of preparation method of novel double-function catalyzing electrolysis water electrode |
| CN110302794A (en) * | 2019-06-19 | 2019-10-08 | 西安交通大学 | A kind of NiAlV ternary metal hydroxide nano chip arrays composite material and preparation method based on flexible carbon substrate |
| CN111128562A (en) * | 2020-01-07 | 2020-05-08 | 广东电网有限责任公司电力科学研究院 | Activated carbon fiber paper and preparation method and application thereof |
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