CN108807000A - A kind of preparation method of nanoporous carbon for high-performance super capacitor - Google Patents
A kind of preparation method of nanoporous carbon for high-performance super capacitor Download PDFInfo
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- CN108807000A CN108807000A CN201810744497.6A CN201810744497A CN108807000A CN 108807000 A CN108807000 A CN 108807000A CN 201810744497 A CN201810744497 A CN 201810744497A CN 108807000 A CN108807000 A CN 108807000A
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title claims abstract description 29
- 239000003990 capacitor Substances 0.000 title claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 claims abstract description 24
- 239000002184 metal Substances 0.000 claims abstract description 22
- 239000000843 powder Substances 0.000 claims abstract description 19
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000001354 calcination Methods 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 239000012299 nitrogen atmosphere Substances 0.000 claims abstract description 8
- 238000012545 processing Methods 0.000 claims abstract description 8
- 239000007787 solid Substances 0.000 claims abstract description 8
- 238000005406 washing Methods 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 5
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 36
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 15
- 239000000243 solution Substances 0.000 claims description 10
- AUHZEENZYGFFBQ-UHFFFAOYSA-N mesitylene Substances CC1=CC(C)=CC(C)=C1 AUHZEENZYGFFBQ-UHFFFAOYSA-N 0.000 claims description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 8
- 239000011259 mixed solution Substances 0.000 claims description 5
- 239000012046 mixed solvent Substances 0.000 claims description 5
- 239000003960 organic solvent Substances 0.000 claims description 5
- 230000007935 neutral effect Effects 0.000 claims description 4
- 239000003575 carbonaceous material Substances 0.000 abstract description 14
- 239000000463 material Substances 0.000 abstract description 8
- 238000012360 testing method Methods 0.000 abstract description 7
- 239000012621 metal-organic framework Substances 0.000 description 7
- 239000007772 electrode material Substances 0.000 description 5
- 238000011160 research Methods 0.000 description 4
- 230000004913 activation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 239000013110 organic ligand Substances 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000002484 cyclic voltammetry Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000007385 chemical modification Methods 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- ZOMNIUBKTOKEHS-UHFFFAOYSA-L dimercury dichloride Chemical class Cl[Hg][Hg]Cl ZOMNIUBKTOKEHS-UHFFFAOYSA-L 0.000 description 1
- 239000002305 electric material Substances 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 125000005909 ethyl alcohol group Chemical group 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 238000002847 impedance measurement Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 229910052752 metalloid Inorganic materials 0.000 description 1
- 229910021392 nanocarbon Inorganic materials 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- -1 nitrogen metalloid Chemical class 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000001338 self-assembly Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- 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
- H01G11/26—Electrodes characterised by their structure, e.g. multi-layered, porosity or surface features
-
- 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
- H01G11/84—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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Nanotechnology (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The present invention provides a kind of preparation methods of the nanoporous carbon for high-performance super capacitor, include the following steps：Step 1）The preparation of presoma nano metal organic frame Fe-BTT, step 2）The preparation of nanoporous carbon, specific step are：By step 1）Obtained presoma nano metal organic frame Fe-BTT is calcined in a nitrogen atmosphere, calcination temperature range is between 600~800 DEG C, after reaching target temperature with the heating rate of 5 DEG C/min, 4h is stopped under target temperature, after allow its natural cooling, the black solid powder obtained after calcination processing to be impregnated for 24 hours with 5~20% hydrofluoric acid solution, during which replace HF and twice and be stirred continuously, washing is carried out with a large amount of water until neutrality, obtains nanoporous carbon later.Nanoporous carbon materials prepared by the present invention recycled under the high-current test of 10A/g still remain for 10,000 times up to 99.5% capacity, illustrate that the material has outstanding cyclical stability.
Description
Technical field
The invention belongs to the preparing technical fields of nanoporous carbon, and in particular to a kind of for high-performance super capacitor
The preparation method of nanoporous carbon.
Background technology
Modern social development is rapid, be unable to do without the support of the energy and power, the problems such as lack of energy and environmental pollution just by
Step annoyings people, such as the three macrofossil energy：Coal, oil, natural gas, this primary energy eventually can by human use totally,
This forces people constantly to explore the novel energy.On the other hand, novel energy is efficiently used dependent on energy storage equipment, people
There is an urgent need to find advanced energy reserves equipment.The development of electronics industry, various electronic equipments need to provide high power capacity, portable
Stand-by power supply, other than battery, the energy storage device of most foreground surely belongs to ultracapacitor.Ultracapacitor has various excellent
Point, the researchers of many countries are in research ultracapacitor at present, including China, ultracapacitor probe at
One of hot spot scientific research project has prodigious application market [2] in electric vehicle, electronic product, national defense industry etc..?
Super but container research field, electrode material and electrolyte always are that leading role, the performance very broad aspect of ultracapacitor are depended on
In the performance of electrode material.
Carbon material is applied in double electric layers supercapacitor earliest.Carbon material has very high specific surface area, aperture
It is controllable, stability is good, has extended cycle life and abundance, it is cheap the advantages that so that be the double of electrode with carbon material
Electric layer capacitor occurs on the market on a large scale.Wherein study it is more be the carbon such as activated carbon, graphene, carbon nanotube
Source.It is in recent years how to be improved by improving the specific surface area of carbon material, aperture structure size to the research emphasis of carbon material
Capacitance and energy density.But the capacitance of the high carbon material of specific surface area not necessarily can be high, only in a certain range and
It is just set up in limit.It is activated carbon to study widest carbon material, it be by some carbon containing presomas such as：Cocoanut shell, wood
Head, coal etc. are obtained through Overheating Treatment after activation.In general the method activated is physically activated chemical activation, activation
Method is different, and the aperture structure and size of acquired carbon material are also different, this is the key that be related to capacitance size.Total comes
It says, the performance that different carbon materials does the ultracapacitor of electrode material is different, and present researcher constantly visits
Rope and improvement carbon electrode material.
Metal-organic framework materials (Metal-Organic Frameworks, abbreviation MOFs) are rapid in the latest 20 years
A kind of hybrid inorganic-organic materials to grow up pass through self assembly shape by metal center/metal cluster and multiple tooth organic ligand
Formula has one-dimensional, two-dimentional or three-dimensional net structure porous crystalline material made of constructing.The diversity of organic ligand enables MOFs
Duct have the characteristics that strong chemical modification, size controllability so that MOFs fluorescence, sensing, gas absorption separation,
The fields such as catalysis all have extensive potential application.In recent years, using MOFs as template or predecessor, by different conditions
Calcine prepared material, such as the composite material and metal oxide of MOFs bases porous carbon materials, metal oxide and carbon
Excellent performance is all shown in fields such as lithium ion battery, ultracapacitors.
Invention content
In view of this, there is provided a kind of nanoporous carbon for high-performance super capacitor for the main object of the present invention
Preparation method.
The technical solution adopted by the present invention is：
A kind of preparation method of nanoporous carbon for high-performance super capacitor, includes the following steps：
Step 1）The preparation of presoma nano metal organic frame Fe-BTT, specially：①：It is 0.5~1.5 to weigh molar ratio:
0.8~1.2 frerrous chloride and 1,3,5- tetrazoles-mesitylene, addition organic solvent n,N-Dimethylformamide and water
Mixed solvent, the two ratio are 5~8:0.5~2；
②：By mixed solution under conditions of power is 300~600W, reacts 5 minutes, obtain faint yellow in microwave reactor
Powder；
③：Faint yellow color powder is washed with n,N-Dimethylformamide and absolute methanol respectively, and presoma is obtained after dry
Nano metal organic frame Fe-BTT；
Step 2）The preparation of nanoporous carbon, specific step are：
By step 1）Obtained presoma nano metal organic frame Fe-BTT is calcined in a nitrogen atmosphere, and calcination temperature range is
Between 600~800 DEG C, after reaching target temperature with the heating rate of 5 DEG C/min, 4h is stopped under target temperature, after allow its from
So cooling, the black solid powder obtained after calcination processing is impregnated for 24 hours with 5~20% hydrofluoric acid solution, during which more
It changes HF twice and is stirred continuously, carry out washing with a large amount of water later until neutrality, obtains nanoporous carbon.
Step 1. in, frerrous chloride and 1, the molar ratio of 3,5- tetrazoles-mesitylene is 0.8~1.2:0.8~1.
It is characterized in that, step 1. in, frerrous chloride and 1, the molar ratio of 3,5- tetrazoles-mesitylene is 1: 1.
Step 1. in, the ratio of n,N-Dimethylformamide and water is 6:1.
In step 2）In, the specific step of the preparation of nanoporous carbon is：
By step 1）Obtained presoma nano metal organic frame Fe-BTT is calcined in a nitrogen atmosphere, and calcination temperature range is
Between 600~800 DEG C, after reaching target temperature with the heating rate of 5 DEG C/min, 4h is stopped under target temperature, after allow its from
So cooling, the black solid powder obtained after calcination processing is impregnated for 24 hours with 10% hydrofluoric acid solution, is during which replaced
HF twice and is stirred continuously, and is carried out washing with a large amount of water later until neutral, is obtained nanoporous carbon.
The present invention has following advantage：Nanoporous carbon materials prepared by the present invention follow under the high-current test of 10A/g
Ring still remains up to 99.5% capacity for 10,000 times, illustrates that the material has outstanding cyclical stability.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples.
The SEM figures that Fig. 1 is presoma nano metal organic frame Fe-BTT in the present invention；
Fig. 2 is that the SEM of bio-MOF100 presomas and prepared nano-carbon coated zinc oxide schemes in the present invention；
The cyclic voltammetry curve that Fig. 3 is NC-800 under different scanning rates in the present invention；
Fig. 4 is the time-measuring electric potential curve under different current densities in the present invention；
Fig. 5 is in the present invention in current density 10A/g cycle life curves.
Specific implementation mode
Below in conjunction with attached drawing and specific embodiment, the present invention will be described in detail, herein illustrative examples of the invention
And explanation is used for explaining the present invention, but it is not as a limitation of the invention.
Embodiment 1
Referring to figs. 1 to Fig. 2, the present invention provides a kind of preparation method of the nanoporous carbon for high-performance super capacitor,
Include the following steps：
Step 1）The preparation of presoma nano metal organic frame Fe-BTT, specially：
①：It is 0.5 to weigh molar ratio:Organic solvent N, N- is added in 0.8 frerrous chloride and 1,3,5- tetrazoles-mesitylene
The mixed solvent of dimethylformamide and water, the two ratio are 5:0.5；
②：By mixed solution under conditions of power is 300W, is reacted 5 minutes in microwave reactor, obtain pale yellow powder；
③：Faint yellow color powder is washed with n,N-Dimethylformamide and absolute methanol respectively, and presoma is obtained after dry
Nano metal organic frame Fe-BTT；
Step 2）The preparation of nanoporous carbon, specific step are：
By step 1）Obtained presoma nano metal organic frame Fe-BTT is calcined in a nitrogen atmosphere, and calcination temperature range is
Between 600 DEG C, after reaching target temperature with the heating rate of 5 DEG C/min, 4h is stopped under target temperature, after make it naturally cold
But, the black solid powder obtained after calcination processing is impregnated for 24 hours with 5% hydrofluoric acid solution, during which replaces HF twice
And it is stirred continuously, carries out washing with a large amount of water later until neutrality, obtains nanoporous carbon.
Embodiment 2
Referring to figs. 1 to Fig. 2, the present invention provides a kind of preparation method of the nanoporous carbon for high-performance super capacitor,
Include the following steps：
Step 1）The preparation of presoma nano metal organic frame Fe-BTT, specially：①：It is 1 to weigh molar ratio:1 chlorination
The mixed solvent of organic solvent n,N-Dimethylformamide and water, the two ratio is added in ferrous iron and 1,3,5- tetrazoles-mesitylene
Example is 6:1；
②：By mixed solution under conditions of power is 400W, is reacted 5 minutes in microwave reactor, obtain pale yellow powder；
③：Faint yellow color powder is washed with n,N-Dimethylformamide and absolute methanol respectively, and presoma is obtained after dry
Nano metal organic frame Fe-BTT；
Step 2）The preparation of nanoporous carbon, specific step are：
By step 1）Obtained presoma nano metal organic frame Fe-BTT is calcined in a nitrogen atmosphere, and calcination temperature range is
Between 700 DEG C, after reaching target temperature with the heating rate of 5 DEG C/min, 4h is stopped under target temperature, after make it naturally cold
But, the black solid powder obtained after calcination processing is impregnated for 24 hours with 10% hydrofluoric acid solution, during which replaces HF two
It is secondary and be stirred continuously, washing is carried out with a large amount of water until neutral, obtain nanoporous carbon later.
Embodiment 3
Referring to figs. 1 to Fig. 2, the present invention also provides a kind of preparation sides of the nanoporous carbon for high-performance super capacitor
Method includes the following steps：
Step 1）The preparation of presoma nano metal organic frame Fe-BTT, specially：①：It is 1.5 to weigh molar ratio:1.2
Frerrous chloride and 1,3,5- tetrazoles-mesitylene, the mixed solvent of addition organic solvent n,N-Dimethylformamide and water, two
Person's ratio is 8: 2；
②：By mixed solution under conditions of power is 300~600W, reacts 5 minutes, obtain faint yellow in microwave reactor
Powder；
③：Faint yellow color powder is washed with n,N-Dimethylformamide and absolute methanol respectively, and presoma is obtained after dry
Nano metal organic frame Fe-BTT；
Step 2）The preparation of nanoporous carbon, specific step are：
By step 1）Obtained presoma nano metal organic frame Fe-BTT is calcined in a nitrogen atmosphere, and calcination temperature range is
Between 800 DEG C, after reaching target temperature with the heating rate of 5 DEG C/min, 4h is stopped under target temperature, after make it naturally cold
But, the black solid powder obtained after calcination processing is impregnated for 24 hours with 20% hydrofluoric acid solution, during which replaces HF two
It is secondary and be stirred continuously, washing is carried out with a large amount of water until neutral, obtain nanoporous carbon later.
Test example：（3）The preparation of electrode and electrochemical property test, specific experiment step：
The nanoporous carbon for taking synthesis weighs the nanoporous carbon black powder obtained after the carbonization of 1mg with electronic analytical balance
In 1mL absolute ethyl alcohols, 10 microlitres of binder mixing, ultrasonic 2min is allowed to fill mixing, is applied to stainless steel substrates several times（Afflux
Body）Within the scope of 1 × 1 cm2, and it is baked to that carbon electrode material is prepared.To the electrode for preparing electrochemical workstation into
Row test, is three-electrode system, uses saturated calomel electrode as reference electrode, platinum electrode is to electrode, and electrolyte is
The sulfuric acid solution of 1mol/L carries out cyclic voltammetry, time-measuring electric potential test, ac impedance measurement, obtains its electrochemistry respectively
The related data of performance.
The present invention selects the organic ligand rich in nitrogen heteroatom to construct porous rich nitrogen metalloid organic frame-Fe-BTT, leads to
It crosses and metal organic frame is calcined at high temperature, pickling removes the porous carbon materials that metallic element obtains N doping, obtains
Super electric material with height ratio capacity.As shown in figure 3, be -0.5V~0.5V in voltage window, under different scanning speed,
N-C-800 shows good rectangle, and the high rate performance that this embodies the carbon material that the porous nitrogen mixes is relatively good.In addition, such as
Shown in Fig. 4, time-measuring electric potential scanning is carried out under different electric currents to NC-800 materials, when electric current gradually rises to 30A/ from 1A/g
When g, the capacitance of NC-800 still maintains high specific capacity, and 212F/g is changed to from 365F/g, and it is good to illustrate that material has
High rate performance.At the same time, which also has excellent cyclical stability, as shown in figure 5, material is in the big of 10A/g
Recycled under testing current still remain for 10,000 times up to 99.5% capacity, illustrate that the material has outstanding cyclical stability.
The technical solution disclosed in the embodiment of the present invention is described in detail above, specific implementation used herein
Example is expounded the principle and embodiment of the embodiment of the present invention, and the explanation of above example is only applicable to help to understand
The principle of the embodiment of the present invention；Meanwhile for those of ordinary skill in the art, embodiment, is being embodied according to the present invention
There will be changes in mode and application range, in conclusion the content of the present specification should not be construed as the limit to the present invention
System.
Claims (5)
1. a kind of preparation method of nanoporous carbon for high-performance super capacitor, which is characterized in that include the following steps：
Step 1）The preparation of presoma nano metal organic frame Fe-BTT, specially：①：It is 0.5~1.5 to weigh molar ratio:
0.8~1.2 frerrous chloride and 1,3,5- tetrazoles-mesitylene, addition organic solvent n,N-Dimethylformamide and water
Mixed solvent, the two ratio are 5~8:0.5~2；
②：By mixed solution under conditions of power is 300~600W, reacts 5 minutes, obtain faint yellow in microwave reactor
Powder；
③：Faint yellow color powder is washed with n,N-Dimethylformamide and absolute methanol respectively, and presoma is obtained after dry
Nano metal organic frame Fe-BTT；
Step 2）The preparation of nanoporous carbon, specific step are：
By step 1）Obtained presoma nano metal organic frame Fe-BTT is calcined in a nitrogen atmosphere, and calcination temperature range is
Between 600~800 DEG C, after reaching target temperature with the heating rate of 5 DEG C/min, 4h is stopped under target temperature, after allow its from
So cooling, the black solid powder obtained after calcination processing is impregnated for 24 hours with 5~20% hydrofluoric acid solution, during which more
It changes HF twice and is stirred continuously, carry out washing with a large amount of water later until neutrality, obtains nanoporous carbon.
2. the preparation method of the nanoporous carbon according to claim 1 for high-performance super capacitor, feature exist
In, step 1. in, frerrous chloride and 1, the molar ratio of 3,5- tetrazoles-mesitylene is 0.8~1.2:0.8~1.
3. the preparation method of the nanoporous carbon according to claim 1 or 2 for high-performance super capacitor, special
Sign is, step 1. in, the molar ratio of frerrous chloride and 1,3,5- tetrazoles-mesitylene is 1: 1.
4. the preparation method of the nanoporous carbon according to claim 1 for high-performance super capacitor, feature exist
In, step 1. in, the ratio of n,N-Dimethylformamide and water is 6:1.
5. the preparation method of the nanoporous carbon according to claim 1 for high-performance super capacitor, feature exist
In in step 2）In, the specific step of the preparation of nanoporous carbon is：
By step 1）Obtained presoma nano metal organic frame Fe-BTT is calcined in a nitrogen atmosphere, and calcination temperature range is
Between 600~800 DEG C, after reaching target temperature with the heating rate of 5 DEG C/min, 4h is stopped under target temperature, after allow its from
So cooling, the black solid powder obtained after calcination processing is impregnated for 24 hours with 10% hydrofluoric acid solution, is during which replaced
HF twice and is stirred continuously, and is carried out washing with a large amount of water later until neutral, is obtained nanoporous carbon.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111117265A (en) * | 2020-01-10 | 2020-05-08 | 南昌航空大学 | Core-shell structure composite microwave absorbing material |
| CN112592484A (en) * | 2020-11-27 | 2021-04-02 | 江苏科技大学 | MOF material constructed by taking 5-mercapto-1-phenyl-1H-tetrazole as ligand and preparation method and application of derivative thereof |
| CN115331978A (en) * | 2022-09-02 | 2022-11-11 | 河北工业大学 | Preparation method and application of positive and negative electrode matching material of lithium ion hybrid capacitor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111117265A (en) * | 2020-01-10 | 2020-05-08 | 南昌航空大学 | Core-shell structure composite microwave absorbing material |
| CN111117265B (en) * | 2020-01-10 | 2022-02-01 | 南昌航空大学 | Core-shell structure composite microwave absorbing material |
| CN112592484A (en) * | 2020-11-27 | 2021-04-02 | 江苏科技大学 | MOF material constructed by taking 5-mercapto-1-phenyl-1H-tetrazole as ligand and preparation method and application of derivative thereof |
| CN115331978A (en) * | 2022-09-02 | 2022-11-11 | 河北工业大学 | Preparation method and application of positive and negative electrode matching material of lithium ion hybrid capacitor |
| CN115331978B (en) * | 2022-09-02 | 2024-07-26 | 河北工业大学 | Preparation method and application of anode-cathode matching material of lithium ion hybrid capacitor |
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| CN108807000B (en) | 2020-03-27 |
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