CN108470627A - A kind of three-dimensional porous graphene super capacitance electrode material and preparation method thereof - Google Patents
A kind of three-dimensional porous graphene super capacitance electrode material and preparation method thereof Download PDFInfo
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- CN108470627A CN108470627A CN201810248743.9A CN201810248743A CN108470627A CN 108470627 A CN108470627 A CN 108470627A CN 201810248743 A CN201810248743 A CN 201810248743A CN 108470627 A CN108470627 A CN 108470627A
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 50
- 239000007772 electrode material Substances 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 239000006260 foam Substances 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 25
- 229910052751 metal Inorganic materials 0.000 claims abstract description 18
- 239000002184 metal Substances 0.000 claims abstract description 18
- 238000000151 deposition Methods 0.000 claims abstract description 13
- 230000008021 deposition Effects 0.000 claims abstract description 11
- 239000003990 capacitor Substances 0.000 claims abstract description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 16
- 239000007789 gas Substances 0.000 claims description 14
- 239000000758 substrate Substances 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 8
- 239000001257 hydrogen Substances 0.000 claims description 8
- 229910052739 hydrogen Inorganic materials 0.000 claims description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 8
- 229910052759 nickel Inorganic materials 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 230000006698 induction Effects 0.000 claims description 5
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 4
- 239000005977 Ethylene Substances 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 235000019441 ethanol Nutrition 0.000 claims description 4
- 230000035484 reaction time Effects 0.000 claims description 4
- 150000001336 alkenes Chemical class 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 2
- 229910017052 cobalt Inorganic materials 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
- 239000011261 inert gas Substances 0.000 claims description 2
- 229910052741 iridium Inorganic materials 0.000 claims description 2
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 150000002894 organic compounds Chemical class 0.000 claims description 2
- 238000010926 purge Methods 0.000 claims description 2
- 229910052703 rhodium Inorganic materials 0.000 claims description 2
- 239000010948 rhodium Substances 0.000 claims description 2
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims description 2
- 229910052707 ruthenium Inorganic materials 0.000 claims description 2
- 238000001465 metallisation Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 12
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000001413 cellular effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005229 chemical vapour deposition Methods 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 description 10
- 239000003792 electrolyte Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 238000001069 Raman spectroscopy Methods 0.000 description 3
- 238000002484 cyclic voltammetry Methods 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 3
- 239000011149 active material Substances 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000840 electrochemical analysis Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000007792 gaseous phase Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/24—Electrodes characterised by structural features of the materials making up or comprised in the electrodes, e.g. form, surface area or porosity; characterised by the structural features of powders or particles used therefor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/32—Carbon-based
- H01G11/36—Nanostructures, e.g. nanofibres, nanotubes or fullerenes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/84—Processes for the manufacture of hybrid or EDL capacitors, or components thereof
- H01G11/86—Processes for the manufacture of hybrid or EDL capacitors, or components thereof specially adapted for electrodes
-
- 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
Abstract
The present invention relates to supercapacitor technologies fields, and more particularly to a kind of cellular three-dimensional grapheme electrode material for super capacitor, including foam metal, the endoporus wall surface deposition of the foam metal surface and foam metal has graphene.Invention provides a kind of three-dimensional porous graphene super capacitance electrode material and preparation method thereof, this method is that the improvement of three-dimensional porous grapheme material is prepared based on existing CVD method, it can be with the thicker three-dimensional porous grapheme material of fast-growth, and it is simple for process, production is efficient, at low cost, environmentally friendly, be convenient for industrialization.
Description
Technical field
The present invention relates to supercapacitor technologies fields, more particularly to a kind of cellular three-dimensional grapheme ultracapacitor
Electrode material and preparation method thereof.
Background technology
Ultracapacitor is also referred to as electrochemical capacitor, it has excellent fast-pulse charge-discharge performance and large capacity
Energy-storage property, because its storage energy is big, light weight, can fast charging and discharging and cycle life be far above battery, and formed a kind of
Novel energy storage device can be used as a kind of efficient cleaner power sources extensive use, in recent years by researcher and energy industry
Extensive attention.
Electrode material as ultracapacitor critical material, it is desirable that it is with higher specific surface area, good conduction
Property.Graphene is the bi-dimensional cellular shape material being made of carbon atom sp2 hydridization, has higher electron mobility and higher electricity
Conductance.Graphene powder material whole surface can form electric double layer, make graphene as electrochemical double layer capacitor electrode
There are prodigious potentiality in terms of material.But during forming macroscopical aggregation, it would generally reunite between graphene sheet layer
Make its specific surface area fail to be fully utilized, and graphene crystal defect is more, is not directly connected between crystal, causes corresponding
Intrinsic specific capacitance fails to play completely, is unable to reach expection.
Three-dimensional porous grapheme material can overcome problem above well, because it increases the effective specific surface of electrode
Product, improves the conductivity of graphene network, and is conducive to the duct that electrolyte penetrates into and ion transmits.Chemical gaseous phase
Deposition (CVD) method is a kind of method quickly and effectively preparing high-quality graphene, using nickel foam as three-dimensional substrates, pyrolytic first
Alkane growing three-dimensional porous graphene forms the three-dimensional porous graphene network structure with high-specific surface area and high conductivity.But
This method deposition velocity is slow, can only be deposited in thin layer three-dimensional substrates, and thicker or smaller aperture material is susceptible to interior
External sediment quality is uneven or even can not be deposited in base internal.These problems meeting three-dimensional porous graphene of extreme influence is in the energy
The commercial application in field.
Invention content
It is too small in order to solve existing electrode material specific surface area, the preparation side of common collector coating active material
Method, it is relatively low to the utilization rate of active material, and the electrode internal resistance prepared is larger, therefore cannot be satisfied the great Rong of ultracapacitor
The problem of performance of amount energy storage and fast charging and discharging.Invention provides a kind of three-dimensional porous graphene super capacitor electricity
Pole material and preparation method thereof.This method is that the improvement of three-dimensional porous grapheme material is prepared based on existing CVD method, can be quick
The thicker three-dimensional porous grapheme material of growth, and simple for process, production is efficient, at low cost, environmentally friendly, be convenient for industrialization.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of three-dimensional porous graphene super capacitance electrode material, including foam metal, the foam metal surface and foam
The endoporus wall surface deposition of metal has graphene.
Preferably, the foam metal is one or more of copper, nickel, iron, cobalt, iridium, ruthenium, rhodium.
A kind of preparation method of three-dimensional porous graphene super capacitance electrode material, includes the following steps：
Step 1, is used as substrate, is positioned in CVD device after foam metal is pre-processed, process cavity vacuumize and
Use inert gas purge；Wherein foam metal can be arbitrary Commercial foam metal；
Step 2 pumps residual gas, until pressure is not more than 10Pa；
Step 3 is passed through hydrogen and carbon-source gas, hydrogen flow rate 20-1000sccm, and carbon-source gas flow velocity is 10-500sccm,
And chamber pressure is controlled in 1000-50000Pa；
Step 4 heats foam metal substrate with induction heating mode, and heating temperature is 800-1200 DEG C, starts to deposit
Graphene is grown, the deposition reaction time is 10-300s；
Step 5 repeats step 2 to step 4, number of repetition 0-100；
Step 6 takes out the foam metal of process postcooling, is compressed into piece and cuts, you can obtain three-dimensional porous stone
Black alkene electrode of super capacitor.
Preferably, the carbon source is the organic compound gas simultaneously containing SP3 and SP2 carbon atoms.
Preferably, the carbon source is one or more of methane, ethylene, ethyl alcohol.
The beneficial effects of the invention are as follows：
The present invention effectively penetrates into the duct of three-dimensional foam metallic substrates by pressure difference, by process gas, is then deposited,
In the case of solving steady pressure, process gas can not be diffused into the problems in smaller deeper duct.
The present invention uses induction heating mode, reduces heating time, to reduce the entire process time, improves production effect
Rate.Additionally reduce energy consumption.
Three-dimensional porous graphene capacitance electrode material prepared by the present invention improves electrode material by retaining metallic substrates
Electric conductivity.
By controlling process time and frequency of depositing, the amount to depositing graphene controls the present invention, finally controls stone
The ratio of black alkene and metallic substrates improves the performance of electrode material.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is a kind of technological process of the preparation method of three-dimensional porous graphene super capacitance electrode material of the present invention
Figure；
Fig. 2 is post-depositional three-dimensional foam nickel photo in the embodiment of the present invention 1；
Fig. 3 embodiments 1（On）With embodiment 2（Under）In the obtained Raman collection of illustrative plates of three-dimensional porous Graphene electrodes material；
Nyquist figure of the three-dimensional porous graphene super capacitance electrode material obtained in Fig. 4 embodiments 1 in electro-chemical test
Spectrum；
Fig. 5 embodiments 1（Used）With comparative example 1（Unused）In be made electrode material cyclic voltammetry curve, sweep speed be 50mV/
s。
Specific implementation mode
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates the basic structure of the present invention, therefore it only shows the composition relevant to the invention.
Embodiment 1
The present embodiment provides a kind of preparation methods of three-dimensional porous graphene super capacitance electrode material, and the flow of this method is as schemed
Shown in 1, it is as follows：
Step 1 is positioned over as substrate after using deionized water, ethyl alcohol to clean successively in commercial three-dimensional foam nickel in CVD device,
Process cavity is vacuumized and is purged with argon gas；
Step 2 pumps residual gas, until within pressure 10Pa；
Step 3 is passed through hydrogen and methane, hydrogen flow rate 100sccm, methane flow rate 50sccm, and controls chamber pressure and exist
5000Pa；
Step 4 heats three-dimensional foam nickel substrate with induction heating mode, and heating temperature is 1000 DEG C, starts deposition life
Long three-dimensional porous graphene, deposition reaction time are 20 seconds；
Step 5 repeats step 2 to step 4, number of repetition 15.
Step 6 takes out the three-dimensional foam nickel of process postcooling（See Fig. 2）, it is compressed into piece and cuts, you can
Obtain three-dimensional porous graphene super capacitor electrode.
KOH using electrochemical workstation to the three-dimensional porous graphene super capacitance electrode material of embodiment 1 in 5M is electric
Electrochemical property test is carried out in solution liquid.Raman collection of illustrative plates figure is as shown in Figure 3（Curve positioned at upside）, test result shows
When charging and discharging currents density is 1A/g, the specific capacitance of electrode is 152F/g, and equivalent series resistance ESR only has 0.9 Ω（See figure
4）.Its cyclic voltammetry curve such as Fig. 5 is shown in solid.
Embodiment 2
The present embodiment provides a kind of preparation methods of three-dimensional porous graphene super capacitance electrode material, and the flow of this method is as schemed
Shown in 1, it is as follows：
Step 1 is positioned over as substrate after using deionized water, ethyl alcohol to clean successively commercial three-dimensional foam copper in CVD device,
Process cavity is vacuumized and is purged with argon gas；
Step 2 pumps residual gas, until within pressure 10Pa；
Step 3 is passed through hydrogen and ethylene, and hydrogen flow rate 50sccm, ethylene flow velocity is 10sccm, and controls chamber pressure and exist
1000Pa；
Step 4 heats the copper-based bottom of three-dimensional foam with induction heating mode, and heating temperature is 1050 DEG C.Start deposition life
Long three-dimensional porous graphene, deposition reaction time are 5 minutes；
Step 5 repeats step 2 to step 4, number of repetition 0；
Step 6 takes out the three-dimensional foam copper of process postcooling, is compressed into piece and cuts, you can obtain three-dimensional porous
Graphene super capacitor electrode.
KOH using electrochemical workstation to the three-dimensional porous graphene super capacitance electrode material of embodiment 1 in 5M is electric
Electrochemical property test is carried out in solution liquid.Raman collection of illustrative plates figure is as shown in Figure 3（Curve positioned at downside）, test result shows
When charging and discharging currents density is 1A/g, the specific capacitance of electrode is 143F/g, and equivalent series resistance ESR only has 0.8 Ω.
Embodiment 3
The present embodiment is the specific capacitance for investigating operation pressure to prepared three-dimensional porous graphene super capacitance electrode material
The influence of energy, other conditions are with embodiment 1, the difference is that control chamber pressure is in 1000Pa.Use electrochemical workstation
Electrochemical property test is carried out in the KOH electrolyte of 5M to the three-dimensional porous graphene super capacitance electrode material of embodiment 3.
Test result shows that when charging and discharging currents density is 1A/g, the specific capacitance of electrode is 116F/g.
Embodiment 4
The present embodiment is the specific capacitance for investigating operation pressure to prepared three-dimensional porous graphene super capacitance electrode material
The influence of energy, other conditions are with embodiment 1, the difference is that control chamber pressure is in 2000Pa.Use electrochemical workstation
Electrochemical property test is carried out in the KOH electrolyte of 5M to the three-dimensional porous graphene super capacitance electrode material of embodiment 4.
Test result shows that when charging and discharging currents density is 1A/g, the specific capacitance of electrode is 138F/g.
Embodiment 5
The present embodiment is the specific capacitance for investigating operation pressure to prepared three-dimensional porous graphene super capacitance electrode material
The influence of energy, other conditions are with embodiment 1, the difference is that control chamber pressure is in 10000Pa.Use electrochemical workstation
Electrochemical property test is carried out in the KOH electrolyte of 5M to the three-dimensional porous graphene super capacitance electrode material of embodiment 5.
Test result shows that when charging and discharging currents density is 1A/g, the specific capacitance of electrode is 165F/g.
Embodiment 6
The present embodiment is the specific capacitance for investigating operation pressure to prepared three-dimensional porous graphene super capacitance electrode material
The influence of energy, other conditions are with embodiment 1, the difference is that control chamber pressure is in 20000Pa.Use electrochemical workstation
Electrochemical property test is carried out in the KOH electrolyte of 5M to the three-dimensional porous graphene super capacitance electrode material of embodiment 6.
Test result shows that when charging and discharging currents density is 1A/g, the specific capacitance of electrode is 169F/g.
Embodiment 7
The present embodiment is the specific capacitance for investigating operation pressure to prepared three-dimensional porous graphene super capacitance electrode material
The influence of energy, other conditions are with embodiment 1, the difference is that control chamber pressure is in 50000Pa.Use electrochemical workstation
Electrochemical property test is carried out in the KOH electrolyte of 5M to the three-dimensional porous graphene super capacitance electrode material of embodiment 7.
Test result shows that when charging and discharging currents density is 1A/g, the specific capacitance of electrode is 161F/g.
Comparative example 1
This comparative example is the comparative example of embodiment 1, other are with embodiment 1, the difference is that not comprising the behaviour for carrying out step 2
Make, i.e., carries out deposition under 5000Pa pressure 300 seconds（15 times 20 seconds）.Then chemical property survey is carried out with the same condition
Examination.Test result shows that when charging and discharging currents density is 1A/g, the specific capacitance of electrode is 97F/g, equivalent series resistance ESR
For 0.9 Ω.As can be seen that the specific capacitance for the three-dimensional porous graphene super capacitor electrode that comparative example method is prepared is less than normal,
Illustrate not deposit graphene inside three-dimensional foam nickel effectively, this method deposits uneven.Its cyclic voltammetry curve such as Fig. 5 is empty
Shown in line.
It is enlightenment with above-mentioned desirable embodiment according to the present invention, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to determine its technical scope according to right.
Claims (5)
1. a kind of three-dimensional porous graphene super capacitance electrode material, it is characterised in that：Including foam metal, the foam metal
The endoporus wall surface of surface and foam metal deposition has graphene.
2. a kind of preparation method of three-dimensional porous graphene super capacitance electrode material as described in claim 1, feature exist
In：The foam metal is one or more of copper, nickel, iron, cobalt, iridium, ruthenium, rhodium.
3. a kind of preparation method of three-dimensional porous graphene super capacitance electrode material, includes the following steps：
Step 1, is used as substrate, is positioned in CVD device after foam metal is pre-processed, process cavity vacuumize and
Use inert gas purge；
Step 2 pumps residual gas, until pressure is not more than 10Pa；
Step 3 is passed through hydrogen and carbon-source gas, hydrogen flow rate 20-1000sccm, and carbon-source gas flow velocity is 10-500sccm,
And chamber pressure is controlled in 1000-50000Pa；
Step 4 heats foam metal substrate with induction heating mode, and heating temperature is 800-1200 DEG C, starts to deposit
Graphene is grown, the deposition reaction time is 10-300s；
Step 5 repeats step 2 to step 4, number of repetition 0-100；
Step 6 takes out the foam metal of process postcooling, is compressed into piece and cuts, you can obtain three-dimensional porous stone
Black alkene electrode of super capacitor.
4. a kind of preparation method of three-dimensional porous graphene super capacitance electrode material as claimed in claim 3, feature exist
In：The carbon source is the organic compound gas simultaneously containing SP3 and SP2 carbon atoms.
5. a kind of preparation method of three-dimensional porous graphene super capacitance electrode material as claimed in claim 4, feature exist
In：The carbon source is one or more of methane, ethylene, ethyl alcohol.
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| Application Number | Priority Date | Filing Date | Title |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111564322A (en) * | 2020-06-10 | 2020-08-21 | 青岛粲耀新材料科技有限责任公司 | Graphene super capacitor for battery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101831622A (en) * | 2010-05-20 | 2010-09-15 | 中国科学院化学研究所 | Grapheme foam and preparation method thereof |
| CN102931437A (en) * | 2012-11-09 | 2013-02-13 | 浙江大学 | Production method of foamed nickel growth based lithium ion battery with graphene serving as negative pole |
| CN103956275A (en) * | 2014-05-19 | 2014-07-30 | 常州立方能源技术有限公司 | Method for preparing three-dimensional graphene network enhanced activated carbon supercapacitor electrode piece |
| CN104319117A (en) * | 2014-10-27 | 2015-01-28 | 哈尔滨工业大学 | Preparation method of 3D bowl-shaped graphene super capacitor electrode material of mixed nanometer structure |
-
2018
- 2018-03-24 CN CN201810248743.9A patent/CN108470627B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101831622A (en) * | 2010-05-20 | 2010-09-15 | 中国科学院化学研究所 | Grapheme foam and preparation method thereof |
| CN102931437A (en) * | 2012-11-09 | 2013-02-13 | 浙江大学 | Production method of foamed nickel growth based lithium ion battery with graphene serving as negative pole |
| CN103956275A (en) * | 2014-05-19 | 2014-07-30 | 常州立方能源技术有限公司 | Method for preparing three-dimensional graphene network enhanced activated carbon supercapacitor electrode piece |
| CN104319117A (en) * | 2014-10-27 | 2015-01-28 | 哈尔滨工业大学 | Preparation method of 3D bowl-shaped graphene super capacitor electrode material of mixed nanometer structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111564322A (en) * | 2020-06-10 | 2020-08-21 | 青岛粲耀新材料科技有限责任公司 | Graphene super capacitor for battery |
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