CN103050294A - Preparation method of active carbon/carbon nano tube composite aerogel electrode material - Google Patents
Preparation method of active carbon/carbon nano tube composite aerogel electrode material Download PDFInfo
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- CN103050294A CN103050294A CN2013100314451A CN201310031445A CN103050294A CN 103050294 A CN103050294 A CN 103050294A CN 2013100314451 A CN2013100314451 A CN 2013100314451A CN 201310031445 A CN201310031445 A CN 201310031445A CN 103050294 A CN103050294 A CN 103050294A
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 122
- 239000002041 carbon nanotube Substances 0.000 title claims abstract description 61
- 229910021393 carbon nanotube Inorganic materials 0.000 title claims abstract description 61
- 239000002131 composite material Substances 0.000 title claims abstract description 54
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 53
- 239000004964 aerogel Substances 0.000 title claims abstract description 46
- 239000007772 electrode material Substances 0.000 title claims abstract description 45
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 239000005011 phenolic resin Substances 0.000 claims abstract description 15
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 14
- 238000004108 freeze drying Methods 0.000 claims abstract description 11
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 4
- 239000010439 graphite Substances 0.000 claims abstract description 4
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 28
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 24
- 125000000687 hydroquinonyl group Chemical class C1(O)=C(C=C(O)C=C1)* 0.000 claims description 23
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 16
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical group [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 16
- 239000007789 gas Substances 0.000 claims description 16
- 238000010792 warming Methods 0.000 claims description 16
- 229910052786 argon Inorganic materials 0.000 claims description 14
- 239000002048 multi walled nanotube Substances 0.000 claims description 13
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 238000003763 carbonization Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 239000004744 fabric Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 8
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 8
- 239000003054 catalyst Substances 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 239000011261 inert gas Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 239000002109 single walled nanotube Substances 0.000 claims description 3
- 229920000049 Carbon (fiber) Polymers 0.000 abstract description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 3
- 239000004917 carbon fiber Substances 0.000 abstract description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 abstract 1
- 238000011065 in-situ storage Methods 0.000 abstract 1
- 238000000352 supercritical drying Methods 0.000 abstract 1
- 239000003792 electrolyte Substances 0.000 description 7
- 239000003990 capacitor Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000004020 conductor Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003980 solgel method Methods 0.000 description 2
- 239000004966 Carbon aerogel Substances 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910018095 Ni-MH Inorganic materials 0.000 description 1
- 229910018477 Ni—MH Inorganic materials 0.000 description 1
- 241000519996 Teucrium chamaedrys Species 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000002484 cyclic voltammetry Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000005087 graphitization Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
Landscapes
- Electric Double-Layer Capacitors Or The Like (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses a preparation method of an active carbon/carbon nano tube composite aerogel electrode material, belonging to the field of preparation of supercapacitor carbon electrodes. With a carbon fiber sheet or graphite paper as a current collector and phenolic resin as a carbon source, the active carbon/carbon nano tube composite aerogel electrode material is prepared in situ by using a supercritical drying or freeze drying method. The prepared active carbon/carbon nano tube composite aerogel electrode material can ensure that active carbon/carbon nano tubes are uniformly compounded to form the net-shaped active carbon/carbon nano tube composite aerogel electrode material with macropores, mesopores and micropores as well as high specific surface. The specific capacitance of the active carbon/carbon nano tube composite aerogel electrode material prepared by adopting the preparation method at a normal temperature reaches 390F/g. The active carbon/carbon nano tube composite aerogel electrode material has the advantages of simple preparation method, high specific capacitance, good conductivity and the like, and has a potential application prospect on the aspect of a high specific capacitance supercapacitor.
Description
Technical field
The present invention relates to the manufacture method of a kind of active carbon/carbon nano-tube composite aerogel electrode material, particularly, relate to a kind ofly take high specific surface carbon and high conductivity carbon nano-tube as component, have macropore, composite aerogel mesoporous and the micropore hierarchical porous structure is the method that raw material prepares electrode material for super capacitor.
Background technology
Ultracapacitor (supercapacitor), the new power type electronic devices and components that occur along with the breakthrough of material science in recent years, electric double layer effect and fake capacitance effect that it utilizes electrode and electrolyte contact interface to say and produces are carried out energy storage, has high specific power and long cycle life, can discharge and recharge by instantaneous large-current, also have simultaneously the characteristics such as safe and reliable.The ultracapacitor of low discharging current can be used as the primary power source of computer, digital equipment or midget plant; The large electric current ultracapacitor of ampere level can consist of power-supply system separately or with battery, both can make to start power supply, is used for tank, aircraft, rocket etc.Peak power demand when the high-power super capacitor compound power supply in parallel with secondary cell or fuel cell can satisfy electric automobile startup, climbing, can be used as again the accumulator that energy reclaims when vehicle descending, brake, therefore caused in recent years widely and paid close attention to, and bright application scenario has been arranged.
At present, the bottleneck of restriction supercapacitor applications mainly is that the energy density (being the stored electric energy wh/kg of Unit Weight) of ultracapacitor is lower.The contrast of the energy density of the energy density of main secondary cell and ultracapacitor is as follows in the world:
Excide battery: 20 wh/kg
Cadmium nickel, Ni-MH battery: 20～60 wh/kg
Lithium battery: 120～140 wh/kg
Ultracapacitor: 1～20 wh/kg
More than can find out, super capacitor energy density is compared low, therefore how to improve energy density to satisfy the important topic that its needs as energy storage device are ultracapacitor development.
The core of ultracapacitor is the technology of preparing of electrode material, and the fine or not key of its performance depends on the quality of electrode material performance.Computing formula from super capacitor energy density:
E = 1/2 C·V
2
C = ε·A / 3.6 π d·10
-6 (μF)
Wherein E is energy density, C be electrode than capacitance, V is interelectrode voltage drop, ε is relative dielectric constant, A is the electrode material area, d is dielectric thickness.As seen, if want to obtain larger energy density, must prepare the electrode material with high specific capacitance.
The material that specific area is larger such as active carbon, activated carbon fiber, carbon aerogels etc. have higher ratio electric capacity usually, all once are used as electrode material for super capacitor research and industrialization of part material (such as active carbon).The ratio electric capacity of common active carbon is general below 200 F/g, and energy density is less than 5 wh/kg.This mainly is because absorbent charcoal material conductivity is very poor, needs in use to add high conductivity material such as graphite, carbon fiber etc. to improve its conductivity, reduces the electrode interior impedance.The unique effect of these electric conducting materials in electrode is exactly the conductivity that increases between the activated carbon granule, because its specific area is very little, to the almost not contribution of energy storage of carbon resistance rod.The addition of electric conducting material is generally 10～20% of electrode quality.Therefore, electric conducting material is added in the performance that has reduced to a great extent ultracapacitor.Therefore, exploitation has the hot issue that the electrode material of satisfactory electrical conductivity is the research of carbon current electrode.Carbon nano-tube is owing to its unique one-dimentional structure, and high degree of graphitization, has excellent electricity and mechanical property, from find it is one of focus of conduction area research so far always.Carbon nano-tube itself also often is used as electrode material for super capacitor research, but because its specific area is less, generally at 200 m
2Below/the g, it is all less than electric capacity and energy density.
Summary of the invention
The object of the invention is to develop the preparation method of a kind of active carbon/carbon nano-tube composite aerogel electrode material, this electrode material can be in conjunction with the high-specific surface area of carbon and the advantages such as high conductivity of carbon nano-tube.
Finish the foregoing invention purpose and say that the concrete technical measures of taking are:
The present invention uses sol-gel process and Freeze Drying Technique, preparation active carbon/carbon nano-tube composite aerogel electrode material.Use sol-gel process to prepare composite material two kinds of components are evenly distributed, and have good interfacial combined function.Use Freeze Drying Technique to prepare the aeroge structure, can further increase the specific area of composite material, improve simultaneously the combination electrode material internal structure, form the hierarchical porous structure of macropore, mesoporous and micropore coexistence, further improve the ratio capacitive property of electrode material.This combination electrode material does not use any heavy metal and oxide thereof, such as MnO
2, RuO, V
2O
5Deng.
Manufacture method of the present invention comprises the steps:
The preparation method of a kind of active carbon/carbon nano-tube composite aerogel electrode material may further comprise the steps:
(1) preparation of phenolic resins/carbon nano-tube composite aerogel: the ultrasonic carbon nano-tube that is dispersed in the aqueous solution is put into collector, add again hydroquinones and formaldehyde that weight ratio is 1:2.5～3, and interpolation catalyst and structure directing agent, formed phenolic resins/carbon nano-tube plural gel in 2～4 days 60～100 ℃ of lower reactions, freeze drying formed phenolic resins/carbon nano-tube composite aerogel in 1～4 day; The consumption of described catalyst is 5～15mmol/ml, and the consumption of described structure directing agent is 0～4 times of hydroquinones quality;
(2) preparation of active carbon/carbon nano-tube composite aerogel electrode material: the charing under 300～1000 ℃, inert gas shielding of the phenolic resins that step (1) is made/carbon nano-tube composite aerogel formed active carbon/carbon nano-tube composite aerogel in 1～4 hour; extract collector out; remove surplus carbon, obtain described active carbon/carbon nano-tube composite aerogel electrode material.
Described carbon nano-tube is a kind of or both mixing in Single Walled Carbon Nanotube and the multi-walled carbon nano-tubes, and length is 1～50 μ m.
Described collector is carbon cloth or graphite paper.
The mass fraction of carbon nano-tube in the aqueous solution is 1～20% in the step (1).
The mass ratio of carbon nano-tube and hydroquinones is 1:0.5～2 in the step (1).
Described catalyst is sodium carbonate, and structure directing agent is PEO
20-PP0
70-PEO
20(P123) and PEO
105-PP0
70-PEO
105(F127) a kind of in or both mixing, it act as and improves combination electrode material intermediary hole area shared ratio in all specific areas, thereby the utilization ratio of increasing specific surface area further promotes the ratio capacitance of active carbon/carbon nano-tube composite aerogel electrode material.
Carbonization process need to be by sectional temperature-controlled realization under the described inert gas shielding; the control heating rate is 1～5 ℃/min; at first be warming up to 300～500 ℃; under this temperature, be incubated 0.5～2 h; then be warming up to 600～1000 ℃; be incubated 1～2 h under this temperature, inert protective gas is nitrogen and argon gas, and airflow rate is 40～100 ml/min.
The prepared active carbon of the present invention/carbon nano-tube composite aerogel electrode material combines the advantage of active carbon high-specific surface area and carbon nano-tube high conductivity, mesoporous and the micropore that can take full advantage of active carbon in electrode charge and discharge process stores electric charge, thereby has greatly improved the ratio electric capacity of material.The ratio electric capacity of the electrode material that the method makes when the cyclic voltammetry scan speed of 20mV/s is 260～390 F/g.
Embodiment
Below by embodiment the present invention is specifically described, but only for the invention will be further described, can not be interpreted as limiting the scope of the invention.Those skilled in the art in the situation that do not deviate from the other changes and modifications that the present invention spirit and protection range are made, still is included within the protection range of the present invention.
Embodiment 1
Getting carbon cloth is collector; be that 20 multi-walled carbon nano-tubes 0.1 g is added to the water ultrasonic with diameter; ratio by weight 1:3 adds hydroquinones and formaldehyde; the mass ratio of hydroquinones and multi-walled carbon nano-tubes is 1:1; sodium carbonate amount is 10 mmol/ml; add structure directing agent P123 (mass ratio of itself and hydroquinones is 2:1); formed gel in 3 days 85 ℃ of lower reactions; freeze drying 2 days forms phenolic resins/carbon nano-tube composite aerogel, with this aeroge at 900 ℃; charing prepared active carbon/carbon nano-tube composite aerogel electrode material in 4 hours under the argon shield.Carbonization process need to be by sectional temperature-controlled realization; the control heating rate is 1～5 ℃/min; at first be warming up to 300～500 ℃; under this temperature, be incubated 0.5～2 h; then be warming up to 600～1000 ℃; be incubated 1～2 h under this temperature, inert protective gas is nitrogen and argon gas, and airflow rate is 40～100 ml/min.The composite material specific area is about 600 m
2/ g, recording than electric capacity in 1M KOH electrolyte is 390 F/g.
Embodiment 2
Getting carbon cloth is collector; be that 20 multi-walled carbon nano-tubes 0.1 g is added to the water ultrasonic with diameter; ratio by weight 1:3 adds hydroquinones and formaldehyde; the mass ratio of hydroquinones and multi-walled carbon nano-tubes is 1:1; sodium carbonate amount is 10 mmol/ml; add structure directing agent P123 (mass ratio of itself and hydroquinones is 1:1); formed gel in 3 days 85 ℃ of lower reactions; freeze drying 2 days forms phenolic resins/carbon nano-tube composite aerogel, with this aeroge at 900 ℃; charing prepared active carbon/carbon nano-tube composite aerogel electrode material in 4 hours under the argon shield.Carbonization process need to be by sectional temperature-controlled realization; the control heating rate is 1～5 ℃/min; at first be warming up to 300～500 ℃; under this temperature, be incubated 0.5～2 h; then be warming up to 600～1000 ℃; be incubated 1～2 h under this temperature, inert protective gas is nitrogen and argon gas, and airflow rate is 40～100 ml/min.The composite material specific area is about 500 m
2/ g, recording than electric capacity in 1M KOH electrolyte is 320 F/g.
Embodiment 3
Getting carbon cloth is collector; be that 20 multi-walled carbon nano-tubes 0.1 g is added to the water ultrasonic with diameter; ratio by weight 1:3 adds hydroquinones and formaldehyde; the mass ratio of hydroquinones and multi-walled carbon nano-tubes is 1:1; sodium carbonate amount is 10 mmol/ml; add structure directing agent F123 (mass ratio of itself and hydroquinones is 2:1); formed gel in 3 days 85 ℃ of lower reactions; freeze drying 2 days forms phenolic resins/carbon nano-tube composite aerogel, with this aeroge at 900 ℃; charing prepared active carbon/carbon nano-tube composite aerogel electrode material in 4 hours under the argon shield.Carbonization process need to be by sectional temperature-controlled realization; the control heating rate is 1～5 ℃/min; at first be warming up to 300～500 ℃; under this temperature, be incubated 0.5～2 h; then be warming up to 600～1000 ℃; be incubated 1～2 h under this temperature, inert protective gas is nitrogen and argon gas, and airflow rate is 40～100 ml/min.The composite material specific area is about 400 m
2/ g, recording than electric capacity in 1M KOH electrolyte is 180 F/g.
Embodiment 4
Getting carbon cloth is collector; be that 20 multi-walled carbon nano-tubes 0.1 g is added to the water ultrasonic with diameter; ratio by weight 1:3 adds hydroquinones, formaldehyde; the mass ratio of hydroquinones and multi-walled carbon nano-tubes is 1:1; sodium carbonate amount is 10 mmol/ml; do not add structure directing agent; formed gel in 3 days 85 ℃ of lower reactions; freeze drying 2 days forms phenolic resins/carbon nano-tube composite aerogel, and the charing under 900 ℃, argon shield of this aeroge was prepared active carbon/carbon nano-tube composite aerogel electrode material in 4 hours.Carbonization process need to be by sectional temperature-controlled realization; the control heating rate is 1～5 ℃/min; at first be warming up to 300～500 ℃; under this temperature, be incubated 0.5～2 h; then be warming up to 600～1000 ℃; be incubated 1～2 h under this temperature, inert protective gas is nitrogen and argon gas, and airflow rate is 40～100 ml/min.The composite material specific area is about 700 m
2/ g, recording than electric capacity in 1M KOH electrolyte is 240 F/g.
Embodiment 5
Getting carbon cloth is collector; be that Single Walled Carbon Nanotube 0.1 g is added to the water ultrasonic with diameter; ratio by weight 1:3 adds hydroquinones; formaldehyde; the mass ratio of hydroquinones and multi-walled carbon nano-tubes is 1:1; sodium carbonate amount is 10 mmol/ml; add structure directing agent P123 (mass ratio of itself and hydroquinones is 2:1); formed gel in 3 days 85 ℃ of lower reactions; freeze drying 2 days forms phenolic resins/carbon nano-tube composite aerogel, with this aeroge at 900 ℃; charing prepared active carbon/carbon nano-tube composite aerogel electrode material in 4 hours under the argon shield.Carbonization process need to be by sectional temperature-controlled realization; the control heating rate is 1～5 ℃/min; at first be warming up to 300～500 ℃; under this temperature, be incubated 0.5～2 h; then be warming up to 600～1000 ℃; be incubated 1～2 h under this temperature, inert protective gas is nitrogen and argon gas, and airflow rate is 40～100 ml/min.The composite material specific area is about 600 m
2/ g, recording than electric capacity in 1M KOH electrolyte is 370 F/g.
Embodiment 6
Getting carbon cloth is collector; be that 20 multi-walled carbon nano-tubes 0.1 g is added to the water ultrasonic with diameter; ratio by weight 1:3 adds hydroquinones; formaldehyde; the mass ratio of hydroquinones and multi-walled carbon nano-tubes is 1:2; sodium carbonate amount is 10 mmol/ml; add structure directing agent P123 (mass ratio of itself and hydroquinones is 2:1); formed gel in 3 days 85 ℃ of lower reactions; freeze drying 2 days forms phenolic resins/carbon nano-tube composite aerogel, with this aeroge at 900 ℃; charing prepared active carbon/carbon nano-tube composite aerogel electrode material in 4 hours under the argon shield.Carbonization process need to be by sectional temperature-controlled realization; the control heating rate is 1～5 ℃/min; at first be warming up to 300～500 ℃; under this temperature, be incubated 0.5～2 h; then be warming up to 600～1000 ℃; be incubated 1～2 h under this temperature, inert protective gas is nitrogen and argon gas, and airflow rate is 40～100 ml/min.The composite material specific area is about 400 m
2/ g, recording than electric capacity in 1M KOH electrolyte is 190 F/g.
Claims (7)
1. the preparation method of active carbon/carbon nano-tube composite aerogel electrode material is characterized in that, may further comprise the steps:
(1) preparation of phenolic resins/carbon nano-tube composite aerogel: the ultrasonic carbon nano-tube that is dispersed in the aqueous solution is put into collector, add again hydroquinones and formaldehyde that weight ratio is 1:2.5～3, and interpolation catalyst and structure directing agent, formed phenolic resins/carbon nano-tube plural gel in 2～4 days 60～100 ℃ of lower reactions, freeze drying formed phenolic resins/carbon nano-tube composite aerogel in 1～4 day; The consumption of described catalyst is 5～15mmol/ml, and the consumption of described structure directing agent is 0～4 times of hydroquinones quality;
(2) preparation of active carbon/carbon nano-tube composite aerogel electrode material: the charing under 300～1000 ℃, inert gas shielding of the phenolic resins that step (1) is made/carbon nano-tube composite aerogel formed active carbon/carbon nano-tube composite aerogel in 1～4 hour; extract collector out; remove surplus carbon, obtain described active carbon/carbon nano-tube composite aerogel electrode material.
2. the preparation method of active carbon according to claim 1/carbon nano-tube composite aerogel electrode material is characterized in that, described carbon nano-tube is a kind of or both mixing in Single Walled Carbon Nanotube and the multi-walled carbon nano-tubes, and length is 1～50 μ m.
3. the preparation method of active carbon according to claim 1/carbon nano-tube composite aerogel electrode material is characterized in that, described collector is carbon cloth or graphite paper.
4. the preparation method of active carbon according to claim 1/carbon nano-tube composite aerogel electrode material is characterized in that, the mass fraction of carbon nano-tube in the aqueous solution is 1～20% in the step (1).
5. the preparation method of active carbon according to claim 1/carbon nano-tube composite aerogel electrode material is characterized in that, the mass ratio of carbon nano-tube and hydroquinones is 1:0.5～2 in the step (1).
6. the preparation method of active carbon according to claim 1/carbon nano-tube composite aerogel electrode material is characterized in that, described structure directing agent is PEO
20-PP0
70-PEO
20And PEO
105-PP0
70-PEO
105In a kind of or both mixing, described catalyst is sodium carbonate.
7. the preparation method of active carbon according to claim 1/carbon nano-tube composite aerogel electrode material; it is characterized in that; carbonization process need to be by sectional temperature-controlled realization under the described inert gas shielding; the control heating rate is 1～5 ℃/min, at first is warming up to 300～500 ℃, is incubated 0.5～2 h under this temperature; then be warming up to 600～1000 ℃; be incubated 1～2 h under this temperature, inert protective gas is nitrogen and argon gas, and airflow rate is 40～100 ml/min.
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103779106A (en) * | 2013-12-31 | 2014-05-07 | 昆明纳太能源科技有限公司 | Nanometer carbon paper for super-capacitor and preparing method thereof |
| CN104600307A (en) * | 2015-01-13 | 2015-05-06 | 上海交通大学 | Preparation method of multiwalled carbon nanotube for lithium air battery positive electrode |
| CN105047433A (en) * | 2015-06-30 | 2015-11-11 | 西安理工大学 | Method for preparing super-capacitor electrode |
| CN106206066A (en) * | 2016-07-13 | 2016-12-07 | 洛阳力容新能源科技有限公司 | Epoxy resin-matrix porous carbon materials, absorbent charcoal composite material, preparation method and application |
| CN108598489A (en) * | 2018-01-29 | 2018-09-28 | 东莞市航盛新能源材料有限公司 | A kind of 3D complex coppers and preparation method thereof and a kind of collector and its application |
| CN108987702A (en) * | 2018-07-16 | 2018-12-11 | 西安交通大学苏州研究院 | Integrated electrode material and its preparation and application based on composite aerogel |
| CN110178194A (en) * | 2016-12-02 | 2019-08-27 | 快帽系统公司 | Combination electrode |
| CN110665442A (en) * | 2019-09-27 | 2020-01-10 | 北京林业大学 | Composite activated carbon aerogel and preparation method and application thereof |
| CN111724999A (en) * | 2020-06-18 | 2020-09-29 | 郑州轻工业大学 | Carbon nanotube/activated carbon composite material of core-sheath nano cable structure and preparation method thereof |
| CN113161161A (en) * | 2021-03-17 | 2021-07-23 | 昆山昆鹏利杰高分子材料技术有限公司 | Nano carbon composite resin hard carbon electrode material and preparation method and application thereof |
| CN113387344A (en) * | 2021-06-28 | 2021-09-14 | 中国科学院合肥物质科学研究院 | Method for preparing carbon aerogel with assistance of epichlorohydrin |
| US11557765B2 (en) | 2019-07-05 | 2023-01-17 | Fastcap Systems Corporation | Electrodes for energy storage devices |
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| CN102682928A (en) * | 2012-06-11 | 2012-09-19 | 华东理工大学 | Preparation method of mesoporous carbon nanosheet and application of mesoporous carbon nanosheet as electrode material of super capacitor |
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