CN107892303A - A kind of preparation method of ultracapacitor washing oil base two dimension porous charcoal nanometer sheet - Google Patents
A kind of preparation method of ultracapacitor washing oil base two dimension porous charcoal nanometer sheet Download PDFInfo
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- CN107892303A CN107892303A CN201711395375.2A CN201711395375A CN107892303A CN 107892303 A CN107892303 A CN 107892303A CN 201711395375 A CN201711395375 A CN 201711395375A CN 107892303 A CN107892303 A CN 107892303A
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- nanometer sheet
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- 239000003610 charcoal Substances 0.000 title claims abstract description 37
- 238000005406 washing Methods 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims abstract description 61
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 13
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 12
- 239000010431 corundum Substances 0.000 claims abstract description 7
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 7
- 238000004821 distillation Methods 0.000 claims abstract description 5
- 239000000843 powder Substances 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000005554 pickling Methods 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims description 15
- 239000000376 reactant Substances 0.000 claims description 12
- 239000010432 diamond Substances 0.000 claims description 8
- 229910003460 diamond Inorganic materials 0.000 claims description 8
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 4
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 239000011812 mixed powder Substances 0.000 claims description 3
- 239000004570 mortar (masonry) Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000001291 vacuum drying Methods 0.000 claims 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 10
- 229910052799 carbon Inorganic materials 0.000 abstract description 10
- 239000003575 carbonaceous material Substances 0.000 abstract description 6
- 239000012190 activator Substances 0.000 abstract description 3
- 238000001035 drying Methods 0.000 abstract description 2
- 239000012300 argon atmosphere Substances 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 description 8
- 239000007772 electrode material Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 239000011280 coal tar Substances 0.000 description 5
- 239000003792 electrolyte Substances 0.000 description 5
- QPUYECUOLPXSFR-UHFFFAOYSA-N 1-methylnaphthalene Chemical compound C1=CC=C2C(C)=CC=CC2=C1 QPUYECUOLPXSFR-UHFFFAOYSA-N 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 238000004939 coking Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- QIMMUPPBPVKWKM-UHFFFAOYSA-N 2-methylnaphthalene Chemical compound C1=CC=CC2=CC(C)=CC=C21 QIMMUPPBPVKWKM-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 2
- TXCDCPKCNAJMEE-UHFFFAOYSA-N dibenzofuran Chemical compound C1=CC=C2C3=CC=CC=C3OC2=C1 TXCDCPKCNAJMEE-UHFFFAOYSA-N 0.000 description 2
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- CWRYPZZKDGJXCA-UHFFFAOYSA-N acenaphthene Chemical compound C1=CC(CC2)=C3C2=CC=CC3=C1 CWRYPZZKDGJXCA-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 125000003983 fluorenyl group Chemical class C1(=CC=CC=2C3=CC=CC=C3CC12)* 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- -1 have fossil class Substances 0.000 description 1
- 150000002475 indoles Chemical class 0.000 description 1
- AWJUIBRHMBBTKR-UHFFFAOYSA-N isoquinoline Chemical compound C1=NC=CC2=CC=CC=C21 AWJUIBRHMBBTKR-UHFFFAOYSA-N 0.000 description 1
- 238000003760 magnetic stirring Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-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, LIGHT-SENSITIVE OR TEMPERATURE-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
- H01G11/38—Carbon pastes or blends; Binders or additives therein
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/01—Crystal-structural characteristics depicted by a TEM-image
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/80—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70
-
- 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
- C01P2006/12—Surface area
-
- 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
- C01P2006/14—Pore volume
-
- 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
- C01P2006/16—Pore diameter
- C01P2006/17—Pore diameter distribution
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Nanotechnology (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
A kind of preparation method the invention discloses ultracapacitor with washing oil base two dimension porous charcoal nanometer sheet, belongs to technical field of carbon material preparation.This method is using the washing oil rich in a variety of armaticity molecules as carbon source, using nano magnesia as guiding die plate, potassium hydroxide is pore-creating activator, washing oil is instilled in the powder above mixed again after potassium hydroxide is mixed with nano magnesia powder mull, finally three is stirred and evenly mixed, it is subsequently transferred in corundum boat, is placed in tube furnace and is heated under an argon atmosphere, is finally naturally cooling to room temperature.Obtained product is taken out, ultracapacitor washing oil base two dimension porous charcoal nanometer sheet is obtained through pickling, distillation water washing and after drying.The porous charcoal nanometer sheet has higher specific volume and good high rate performance.The present invention prepares the two-dimentional porous charcoal nanometer sheet of ultracapacitor, has the advantages that cost is cheap, technique is simple, controllable using the washing oil rich in a variety of polycyclic aromatic molecules as carbon source.
Description
Technical field
The invention belongs to technical field of carbon material preparation, and in particular to a kind of two-dimentional porous charcoal nanometer sheet of ultracapacitor
Preparation method.
Background technology
Ultracapacitor, double layer capacitor is also, is a kind of to have that charge/discharge rates are fast, power density is high, circulation is steady
Qualitative good energy-storage travelling wave tube.In recent years, it is super with wearable electronic and the continuous development of cell mixed power automobile industry
The application of capacitor is more and more extensive.
The performance of ultracapacitor is influenceed by assembly properties such as collector, electrode material, electrolyte and barrier films.Wherein,
What performance of the supercapacitor was played a decisive role is electrode material.Because porous charcoal has specific surface area height, chemical property
The advantages that stable, cheap and easy to get, suitable industrialized production, receive the favor of numerous researchers.Prepare porous carbon material at present
Raw material mainly have fossil class, biomass class and polymer etc..
Washing oil is one of important cut during coal tar distillation, 230-300 DEG C of boiling range, accounts for the 4.5- of coal tar
10%.And coal tar is a kind of black or the dark brown viscous liquid obtained during coking of coal.In China, due to the storage of coal
Amount is relatively abundanter, and the yield of the coal tar in process of coking is also more, so the content of accessory substance washing oil is also more.It is general next
Say, washing oil be yellowish-brown to brown oil liquid, rich in quinoline, isoquinolin, indoles, alpha-methyl-naphthalene, beta-methylnaphthalene, biphenyl, two
The polycyclic aromatic molecule such as methyl naphthalene, acenaphthene, dibenzofuran and fluorenes, these molecules are to prepare the good raw material of two-dimensional sheet material.
The content of the invention
For overcome the deficiencies in the prior art, the technical problem to be solved in the present invention is to provide one kind with rich in a variety of condensed ring virtue
The washing oil of fragrance molecule is carbon source, respectively using cheap nano magnesia and potassium hydroxide as template and activator, is directly prepared
The method of the two-dimentional porous charcoal nanometer sheet of ultracapacitor.
In order to solve the above technical problems, the present invention is achieved by the following technical programs.
A kind of ultracapacitor preparation method of washing oil base two dimension porous charcoal nanometer sheet of the present invention, is comprised the following steps that：
(1) pretreatment of reactant：Nano magnesia is put into mortar, adds the potassium hydroxide of grind into powder,
Both regrindings are well mixed, washing oil instilled in well mixed powder, stood under the conditions of being dried in vacuo after stirring
12h, obtain reactant；Wherein, the quality of potassium hydroxide accounts for potassium hydroxide, nano magnesia and washing oil three's mixture gross mass
2/5~4/7, the mass ratio of potassium hydroxide and washing oil is 2/1~4/1；
(2) preparation of two-dimentional porous charcoal nanometer sheet：The reactant that step (1) obtains is put into corundum boat, then by institute
State corundum boat to be positioned in horizontal pipe furnace, be passed through argon gas by the air emptying in tube furnace, will with 5 DEG C/min heating rate
Diamond heating continues diamond heating to final temperature 800~950 with 5 DEG C/min heating rate to 100 DEG C, constant temperature 30min
DEG C, constant temperature 1h, reaction is down to room temperature naturally after terminating, and obtained product is taken out, grinding, through pickling, distillation water washing into
Property, obtain two-dimentional porous charcoal nanometer sheet after drying.
Optimize as one kind, in step (1), the coal tar is 6g, and the nano magnesia is 9g, the hydroxide
Potassium is 12g；In step (2), by diamond heating to 850 DEG C of final temperature.Now, the porous carbon material specific surface area of gained is up to
1912m2/g；Specific volume reaches 327F/g under 0.05A/g current density, and specific volume reaches 226F/ under 20A/g current density
g。
The present invention is using the washing oil rich in aromatic hydrocarbons as carbon source, is used as mould using cheap nano magnesia and potassium hydroxide respectively
Plate agent and activator, the two-dimentional porous charcoal nanometer sheet material of ultracapacitor is directly made.Prepared two-dimentional porous charcoal nanometer
The specific surface area of piece reaches 1912m2/ g, total pore volume reach 1.26cm3/g。
Compared with prior art, the present invention has following technique effect：
(1) rich coal resources in China is based on, now prepares electrode for super capacitor using coking byproduct washing oil as carbon source
Material, the utilization rate and added value of original material can be improved.
(2) washing oil is rich in a variety of polycyclic aromatic molecules, it is contained divide armaticity molecule function it is varied, be that synthesis is high
The potential carbon source of performance carbon material.
(3) carbon source used in is cheap for other pure material carbon sources, applied in ultracapacitor, Neng Gou great
The big cost for reducing electrode material.
(4) with washing oil as carbon source, nano magnesia is that template couples porous charcoal nanometer prepared by activation of potassium hydroxide method
Piece, the porous carbon material of gained have high specific surface area, can reach 1912m2/g。
(5) the electrode for super capacitor material prepared using washing oil as carbon source, the specific volume energy under 0.05A/g current density
Reach 327F/g, specific volume can reach 226F/g under 20A/g current density, have preferable rate capability.
(6) using conventional diamond heating, preparation method is simple, controllable, thus has broad application prospects.
Brief description of the drawings
Fig. 1 is the nitrogen Adsorption and desorption isotherms of two-dimentional porous charcoal nanometer sheet prepared by the embodiment of the present invention 2.
Fig. 2 is the graph of pore diameter distribution of porous charcoal nanometer sheet prepared by the embodiment of the present invention 2.
Fig. 3 is the transmission electron microscope photo of two-dimentional porous charcoal nanometer sheet prepared by the embodiment of the present invention 2.
Fig. 4 is that two-dimentional porous charcoal nanometer sheet electrode material prepared by the embodiment of the present invention 1,2,3,4 is electric in 6mol/L KOH
Solve in liquid, specific volume under different current densities with current density variation diagram.
Embodiment
In order to be better understood from the present invention, the present invention will be further described with reference to the accompanying drawings and examples, but this
Invention scope of protection is not limited to the scope that embodiment illustrates, it should be understood that into example, those skilled in the art
Member can be without prejudice to being changed and modified on the basis of spirit and scope of the invention, and all such changes and modifications are included in
In the scope of the invention.
Embodiment 1
Two-dimentional porous charcoal nanometer sheet PCNS800Specific preparation process it is as follows：
(1) pretreatment of reactant：Weigh 12g potassium hydroxide solids to be put into mortar, grind, it is powdered to add 9g
Nano magnesia, both regrind well mixed, 6g washing oil are instilled in well mixed powder, vacuum is done after stirring
12h is stood under the conditions of dry, obtains reactant；
(2) preparation of two-dimentional porous charcoal nanometer sheet：The reactant that step (1) obtains is put into corundum porcelain boat, by described in
Corundum boat is positioned in horizontal pipe furnace, argon gas is passed through by the air emptying in tube furnace with 60mL/min flow, using normal
Hot plate heating is advised, constant temperature 30min, is continued diamond heating with identical to 100 DEG C with 5 DEG C/min heating rate
Diamond heating to 800 DEG C, constant temperature 1h of final temperature, reaction are down to room temperature by heating rate naturally after terminating, the production that then will be obtained
Thing takes out, and is put into after grinding in beaker, addition 2mol/L watery hydrochloric acid, ultrasonic vibration 1h, then with magnetic stirring apparatus in room temperature
Lower stirring 12h, it is then neutral with 80 DEG C or so of distillation water washing to filtrate, the sample after washing is placed in air dry oven
Interior 325 mesh sieve ground after 110 DEG C of freeze-day with constant temperature 24h, obtains two-dimentional porous charcoal nanometer sheet.Gained two dimension porous charcoal nanometer sheet
Labeled as PCNS800。PCNS800As symmetric form electrode material for super capacitor, in 6mol/L KOH electrolyte, in 0.05A/
Under g current densities, PCNS800Specific volume be 201F/g；Under 20A/g current densities, PCNS800Specific volume be 144F/g.
Embodiment 2
Two-dimentional porous charcoal nanometer sheet PCNS850Specific preparation process it is as follows：
(1) pretreatment of reactant：Implement according to the same method of the step (1) in embodiment 1；
(2) preparation of two-dimentional porous charcoal nanometer sheet：Implement according to the same method of the step (2) in embodiment 1.It is different
Part is, is heated to 850 DEG C of final temperature.Gained two dimension porous charcoal nanometer sheet is labeled as PCNS850.Gained two dimension porous charcoal nanometer
The specific surface area of piece is 1912m2/ g, total pore volume 1.26cm3/g。PCNS850As symmetric form electrode material for super capacitor,
In 6mol/L KOH electrolyte, under 0.05A/g current densities, PCNS850Specific volume be 327F/g；In 20A/g current densities
Under, PCNS850Specific volume be 226F/g.
Embodiment 3
Two-dimentional porous charcoal nanometer sheet PCNS900Specific preparation process it is as follows：
(1) pretreatment of reactant：Implement according to the same method of the step (1) in embodiment 1；
(2) preparation of two-dimentional porous charcoal nanometer sheet：Implement according to the same method of the step (2) in embodiment 1.It is different
Part is, is heated to 900 DEG C of two-dimentional porous charcoal nanometer sheets of gained of final temperature and is labeled as PCNS900。PCNS900It is super as symmetric form
Capacitor electrode material, in 6mol/L KOH electrolyte, under 0.05A/g current densities, PCNS900Specific volume be 230F/g；
Under 20A/g current densities, PCNS900Specific volume be 190F/g.
Embodiment 4
Two-dimentional porous charcoal nanometer sheet PCNS950Specific preparation process it is as follows：
(1) pretreatment of reactant：Implement according to the same method of the step (1) in embodiment 1；
(2) preparation of two-dimentional porous charcoal nanometer sheet：Implement according to the same method of the step (2) in embodiment 1.It is different
Part is, is heated to 950 DEG C of final temperature.Gained two dimension porous charcoal nanometer sheet is labeled as PCNS950。PCNS950Surpass as symmetric form
Level capacitor electrode material, in 6mol/L KOH electrolyte, under 0.05A/g current densities, PCNS950Specific volume be 157F/
g；Under 20A/g current densities, PCNS950Specific volume be 126F/g.
Claims (2)
1. a kind of ultracapacitor preparation method of washing oil base two dimension porous charcoal nanometer sheet, it is characterised in that this method is specific
Step is as follows：
(1) pretreatment of reactant：Nano magnesia is put into mortar, adds the potassium hydroxide of grind into powder, both
Regrinding is well mixed, washing oil is instilled in well mixed powder, stood after stirring under the conditions of vacuum drying
12h, obtain reactant；
Wherein, the quality of potassium hydroxide accounts for the 2/5~4/7 of potassium hydroxide, nano magnesia and washing oil three's mixture gross mass,
The mass ratio of potassium hydroxide and washing oil is 2/1~4/1；
(2) preparation of two-dimentional porous charcoal nanometer sheet：The reactant that step (1) obtains is put into corundum boat, then by corundum boat
It is positioned in horizontal pipe furnace, is passed through argon gas by the air emptying in tube furnace, is added tube furnace with 5 DEG C/min heating rate
Heat continues diamond heating to 800~950 DEG C of final temperature, constant temperature with 5 DEG C/min heating rate to 100 DEG C, constant temperature 30min
1h, reaction are down to room temperature naturally after terminating, and obtained product are taken out, grinding, through pickling, distillation water washing to neutrality, dry
After obtain two-dimentional porous charcoal nanometer sheet.
A kind of 2. preparation method of the two-dimentional porous charcoal nanometer sheet of ultracapacitor as claimed in claim 1, it is characterised in that
In step (1), the quality of the washing oil is 6g, and the quality of the nano magnesia is 9g, and the quality of the potassium hydroxide is
12g；In step (2), by diamond heating to 850 DEG C of final temperature.
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|---|---|---|---|---|
| CN102431992A (en) * | 2011-09-22 | 2012-05-02 | 安徽工业大学 | Method for preparing porous carbon material by using magnesium oxide template in cooperation with activation of potassium hydroxide |
| CN105417521A (en) * | 2015-12-28 | 2016-03-23 | 安徽工业大学 | Method for preparing fluorene-based hierarchical porous carbon nanosheets for super capacitors |
| CN106430148A (en) * | 2016-09-05 | 2017-02-22 | 安徽工业大学 | Preparation method of washing-oil-based porous carbon nanosheet for supercapacitor |
| CN106629722A (en) * | 2016-12-30 | 2017-05-10 | 安徽工业大学 | Preparation method of rice husk/coal asphalt-based porous graphitized carbon nano sheet used for supercapacitors |
-
2017
- 2017-12-21 CN CN201711395375.2A patent/CN107892303A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102431992A (en) * | 2011-09-22 | 2012-05-02 | 安徽工业大学 | Method for preparing porous carbon material by using magnesium oxide template in cooperation with activation of potassium hydroxide |
| CN105417521A (en) * | 2015-12-28 | 2016-03-23 | 安徽工业大学 | Method for preparing fluorene-based hierarchical porous carbon nanosheets for super capacitors |
| CN106430148A (en) * | 2016-09-05 | 2017-02-22 | 安徽工业大学 | Preparation method of washing-oil-based porous carbon nanosheet for supercapacitor |
| CN106629722A (en) * | 2016-12-30 | 2017-05-10 | 安徽工业大学 | Preparation method of rice husk/coal asphalt-based porous graphitized carbon nano sheet used for supercapacitors |
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Application publication date: 20180410 |