CN110010372A - A kind of preparation method of high mating type electrode for super capacitor material - Google Patents
A kind of preparation method of high mating type electrode for super capacitor material Download PDFInfo
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- CN110010372A CN110010372A CN201910165934.3A CN201910165934A CN110010372A CN 110010372 A CN110010372 A CN 110010372A CN 201910165934 A CN201910165934 A CN 201910165934A CN 110010372 A CN110010372 A CN 110010372A
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- 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
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- 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
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- 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
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- 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 a kind of preparation methods of high mating type electrode for super capacitor material, belong to electric material technical field.Technical solution of the present invention passes through graphite oxide and dispersion enzymolysis protein is compound, it is effectively improved the dispersion performance of material, nickel-base material is as electrode material for super capacitor simultaneously, with high theoretical specific capacitance, raw material sources abundant, graphite oxide is compound with nickel-base material, reduce the internal resistance of electrode material, the graphite oxide of technical solution of the present invention is modified by lauryl amine simultaneously, due to having accessed hydrophobic long chain alkyl group after lauryl amine is handled, reducing surface can, increase its contact angle, can preferably it disperse in organic solvent, the graphite oxide material being modified in this way serves not only as construction unit, and effectively overlap joint forms network in skeleton, enhance the structure of 3D network, and improves its reunion performance and improve its dispersion stabilization, to finally improve the bond strength of material, improve the chemical property of material.
Description
Technical field
The present invention relates to a kind of preparation methods of high mating type electrode for super capacitor material, belong to electric material technology
Field.
Background technique
With the fast development of modern society, energy consumption is growing day by day, the non-renewable change such as petroleum, coal, natural gas
The stone energy is increasingly exhausted, far from the sustainable development demand for meeting human social economy.In addition, the mankind are to these fossil energies
Exhaustive exploitation oneself caused a series of environmental problem, such as；The exhaust gas that fossil energy burning generates is arranged into atmosphere, is caused
Acid rain, greenhouse effects and mist spirit, seriously threaten the survival condition of the mankind.It is many in order to solve energy shortage, environmental pollution etc.
Problem maintains the sustainable development of human society, energy saving in addition to change the existing mode of production and life, also plays energetically
Reproducible green novel energy source is developed and promoted, and gradually replaces and uses traditional non-renewable fossil energy, to avoid ring
Border pollution and the situation for improving energy shortages.This mainly starts in terms of two: being on the one hand exploitation nuclear energy, solar energy, wind energy
With the new energy of the low-carbon environment-friendlies such as geothermal energy；It on the other hand is exploitation new and effective, environmental-friendly energy storage device or device.It is super
Grade capacitor, also referred to as electrochemical capacitor are a kind of new type of energy storage device between battery and traditional capacitor.With it is other
Energy conversion is compared with memory element, and supercapacitor has fairly obvious advantage, and the power density of supercapacitor is higher than
Battery, energy density are better than traditional capacitor, have service life cycle length, good rate capability, highly-safe and environment friendly
The series of advantages such as good.As a kind of novel energy-storage travelling wave tube, supercapacitor is widely used in new-energy automobile, track is handed over
Fields, the demand of industrialized production such as logical, wind power generation and military special equipment are also growing day by day.However, high-volume, work
The supercapacitor for preparing high specific capacitance, having extended cycle life of industry still has bigger difficulty.
Supercapacitor is mainly made of the part such as electrode, diaphragm, electrolyte and shell, wherein electrode is super capacitor
The most important component part of device, is made of electrode material and collector respectively.Electrode material, which is usually chosen, has high-specific surface area
With the nanometer materials of high porosity.The effect of collector is to reduce electrode internal resistance, the collector of institute W selection, in addition to having energy
It is stabilized, except the characteristic not chemically reacted with electrode material or electrolyte, should also select as far as possible in the electrolytic solution
Selecting can be with electrode material full contact and the smallest collector of contact resistance.The effect of diaphragm is to separate positive electrode and negative electrode to prevent
Short circuit and anion/cation can be made to pass freely through, common diaphragm has polyethylene diagrams, polypropylene diaphragm etc., and electrolyte is main
Play a part of medium, provides anion/cation for supercapacitor, and the chemical reaction for ensuring to occur in thermal energy storage process or ion
Absorption is reversible, and optimum electrolyte just its optimal capacitive character of performance can be usually selected according to the characteristic of electrode material
Energy.
It, will be golden other than designing reasonable nanostructure in order to improve the chemical property of metal compound electrode material
Belong to compound and high conductivity carbon-based material it is compound be also that the one kind for obtaining the combination electrode material of more height ratio capacity has efficacious prescriptions
Method.Carbon-based material can form conductive network in combination electrode material, provide more effective electron-transport road for active material
Diameter, to embody excellent chemical property.
For electrode material for super capacitor, nickel-base material has many advantages, such as high theoretical specific capacitance, raw material sources abundant.
But since nickel-base material resistivity is higher, electric conductivity is poor, this point limits nickel-base material in super capacitor
Application in terms of device.Because in electrochemical process when fast charging and discharging (especially), the easy volume expansion of nickel-base material, to capacitor
Stability and safety are impacted and are destroyed.So graphite material is compound with nickel-base material, it is therefore an objective to be mentioned for active material
For faster electron-transport path, the volume expansion of active material is reduced.Graphite material is compound with nickel-base material, to a certain degree
On can reduce the internal resistance of electrode material.The stone of high quality low defect
Black alkene structure and stable chemical performance, it is difficult to compound well with nickel-base material.Therefore, usually to contain a large amount of functional groups
Graphite oxide material aqueous solution as raw material, it is compound with nickel-base material by chemistry or electrochemical method, finally obtain graphite
Nickel-base material composite material.But graphite oxide material aqueous solution easily self assembly reunite, may will affect in preparation process with nickel
The composite effect of sill.So being sufficiently modified to it, the dispersion and binding performance between raising material are necessary.
Summary of the invention
The technical problems to be solved by the invention: higher for nickel-base material resistivity now, electric conductivity is poor, will aoxidize
Graphite material and nickel-base material compound tense, the easily self assembly of graphite oxide material aqueous solution are reunited, and may will affect preparation process
In composite effect with nickel-base material the problem of, provide a kind of preparation side of high mating type electrode for super capacitor material
Method.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
(1) defatted soybean meal enzymolysis processing, spin concentration are obtained concentration enzymolysis liquid by 1:10 in mass ratio；Take graphite oxide and by matter
Graphite oxide is added in n,N-Dimethylformamide by amount than 1:8, is stirred and ultrasonic disperse, collection dispersion liquid are simultaneously pressed
Mass ratio 1:15, lauryl amine is added in dispersion liquid, is stirred simultaneously insulation reaction, collects reactant and centrifuge washing, cold
It is lyophilized dry, obtains modified particles；
(2) according to parts by weight, 45~50 parts of deionized waters, 3~5 parts of modified particles, 10~15 parts of concentration enzymatic hydrolysis are weighed respectively
Liquid is placed in a beaker, and is stirred and stands 10~12h, obtains coagulant liquid, then according to parts by weight, is weighed 45~50 parts respectively and is coagulated
Glue, 10~15 parts of deionized waters and 3~5 parts of chitosans are placed in a beaker, and are stirred juxtaposition ultrasonic disperse, are obtained dispersion liquid simultaneously
It is placed in and stands at room temperature, obtain plural gel liquid；
(3) according to parts by weight, 45~50 parts of deionized waters, 25~30 parts of dehydrated alcohols, 3~5 parts of nickel nitrates, 6 are weighed respectively
~8 parts of urea are placed in autoclave, and high pressure heat-preserving reaction collects reaction solution and carrying out washing treatment, nickel hydroxide collected, by matter
Nickel hydroxide and plural gel liquid are stirred than 1:15 and are placed in grinding distribution in mortar by amount, and the screen to filtrate collects dispersion
Coagulant liquid is simultaneously poured into mold, dry to constant weight, can be prepared into the high mating type electrode for super capacitor material.
The enzymolysis processing step are as follows: defatted soybean meal is added in deionized water by 1:10 in mass ratio, is stirred
And pH to 8.0 is adjusted with 1.5mol/L sodium hydroxide, it is stirred and is placed in 10~15min of ultrasonic disperse under 200~300W, receive
Collection dispersion slurries are placed in 5500~6000r/min and are centrifugated 10~15min, collect supernatant and with 1.5mol/L hydrochloric acid tune
PH to 4.5 is saved, water-bath centrifugation is collected lower sediment and being washed with deionized to cleaning solution and is in neutrality, and vacuum freeze drying is ground
Mill, obtains separation protein body；Protein isolate particle is added in deionized water by 1:10 in mass ratio, is stirred to obtain mixing
Papain is added in mixed liquor by liquid, is adjusted pH to 7.0 and is carried out enzymolysis processing.
The enzymolysis processing using 50U/g papain.
The spin concentration is that rotation is evaporated to original volume 1/5 at 35~45 DEG C, obtains concentration enzymolysis liquid.
The graphite oxide partial size is 500 mesh.
The high pressure heat-preserving reaction temperature is 175~180 DEG C.
The carrying out washing treatment is respectively to be rinsed 3~5 times respectively with deionized water and dehydrated alcohol.
It is that 0.25~0.28 μm of sieve is filtered that the screen to filtrate, which is with aperture,.
The mold drying temperature is 100~110 DEG C.
The water-bath centrifuging temperature is 0~5 DEG C.
The present invention is compared with other methods, and advantageous effects are:
(1) technical solution of the present invention, which is used, is modified processing to soybean protein isolate using papain limited enzymatic hydrolysis,
Its dispersing characteristic can be significantly changed, by by graphite oxide and dispersion enzymolysis protein it is compound, be effectively improved the dispersibility of material
Can, while the peptide material that protein digestion is formed, while by graphite material and proteolysis Material cladding gelation process
In, boiomacromolecule can be used as the effective crosslinking agent for promoting graphite oxide gel-forming, oxidized graphite flake layer and biological high score
Subchain by hydrogen bond, Van der Waals force, π-it is pi-conjugated etc. carry out three-dimensional be self-assembly of gel its have it is clear, be interconnected
Three-dimensional porous network structure, so combining it effectively and forming the gel rubber system with dispersion, such gel rubber system is effective
Improve the bond strength and performance of material；
(2) in the technical solution of the present invention, nickel-base material has high theoretical specific capacitance as electrode material for super capacitor,
Raw material sources abundant, by the way that graphite oxide is compound with nickel-base material, it is therefore an objective to provide faster electronics for active material and pass
The volume expansion of active material is reduced in defeated path, forms attached " shear wall " structure in a jail by nanometer sheet and nanometer sheet, should
Kind structure can bear the stress in vertical-horizontal direction without collapsing, while have certain space between lamella, it is possible to reduce
The influence of hot volume expansion, therefore during redox reaction, electrode structure is not susceptible to destroy or reunite, thus electronics
There is shorter diffusion path with ion, while two-dimensional nano piece array structure has high specific surface area, it can be with electrolyte
It comes into full contact with, is conducive to going on smoothly for electrochemical reaction, graphite oxide is compound with nickel-base material, it to a certain extent can be with
The internal resistance of electrode material is reduced, while the graphite oxide of technical solution of the present invention is modified by lauryl amine, handles by lauryl amine
Afterwards due to having accessed hydrophobic long chain alkyl group, surface energy is reduced, increases its contact angle, can preferably divide in organic solvent
It dissipates, the graphite oxide material being modified in this way serves not only as construction unit, and effectively overlap joint forms network in skeleton, enhances 3D net
The structure of network, and improve its reunion performance and improve its dispersion stabilization, composite gel system and nickel-base material system
The interaction overcome between graphite material temporary under external force reaches metastable state, is compounded in model moral after external force revocation
Self assembly is carried out under the action of Hua Li, to finally improve the bond strength of material, improves the chemical property of material.
Specific embodiment
Defatted soybean meal is added in deionized water by 1:10 in mass ratio, is stirred and with 1.5mol/L sodium hydroxide
PH to 8.0 is adjusted, is stirred and is placed in 10~15min of ultrasonic disperse under 200~300W, dispersion slurries is collected and is placed in 5500
~6000r/min is centrifugated 10~15min, collects supernatant and with 1.5mol/L salt acid for adjusting pH to 4.5, at 0~5 DEG C
Water-bath centrifugation is collected lower sediment and being washed with deionized to cleaning solution and is in neutrality, and vacuum freeze drying grinding obtains separation egg
White particle；Protein isolate particle is added in deionized water by 1:10 in mass ratio, is stirred to obtain mixed liquor, by 50U/g,
Papain is added in mixed liquor, adjusts pH to 7.0 with 0.5mol/L sodium hydroxide, then rotate and steam at 35~45 DEG C
It is sent to original volume 1/5, obtains concentration enzymolysis liquid；Graphite oxide and in mass ratio 1:8 are taken, 500 mesh graphite oxides are added to N, N-
It in dimethylformamide, is stirred and is placed in 200~300W, 10~15min of ultrasonic disperse, collect dispersion liquid and in mass ratio
Lauryl amine is added in dispersion liquid by 1:15, is stirred and is placed in 2~3h of insulation reaction at 110~125 DEG C, and reaction is collected
Object and with dehydrated alcohol centrifuge washing 3~5 times, the vacuum freeze drying at 35~40 DEG C obtains modified particles；In parts by weight
Meter weighs 45~50 parts of deionized waters, 3~5 parts of modified particles, 10~15 parts of concentration enzymolysis liquids respectively and is placed in a beaker, stirs
Mix and stand 10~12h, obtain coagulant liquid, then according to parts by weight, respectively weigh 45~50 parts of coagulant liquids, 10~15 parts go from
Sub- water and 3~5 parts of chitosans are placed in a beaker, and are stirred and are placed in 10~15min of ultrasonic disperse under 200~300W, score
Dispersion liquid juxtaposition stands 10~12h at room temperature, obtains plural gel liquid；According to parts by weight, 45~50 parts of deionizations are weighed respectively
Water, 25~30 parts of dehydrated alcohols, 3~5 parts of nickel nitrates, 6~8 parts of urea are placed in autoclave, are protected at 175~180 DEG C
Temperature 10~12h of reaction collects reaction solution and is respectively rinsed 3~5 times respectively with deionized water and dehydrated alcohol, collects hydroxide
Nickel hydroxide and plural gel liquid are stirred and are placed in 10~15min of grinding distribution in mortar by nickel, in mass ratio 1:15,
0.25~0.28 μm of sieve is crossed, dispersion gel liquid is collected and is simultaneously poured into mold, mold is placed at 100~110 DEG C and is dried extremely
Constant weight can be prepared into the high mating type electrode for super capacitor material.
Embodiment 1
Defatted soybean meal is added in deionized water by 1:10 in mass ratio, is stirred and is adjusted with 1.5mol/L sodium hydroxide
PH to 8.0 is stirred and is placed in ultrasonic disperse 10min under 200W, collects dispersion slurries and is placed in 5500r/min centrifuge separation
10min, collect supernatant and use 1.5mol/L salt acid for adjusting pH to 4.5, at 0 DEG C water-bath be centrifuged, collection lower sediment be used in combination
Deionized water is washed to cleaning solution and is in neutrality, and vacuum freeze drying grinding obtains separation protein body；1:10 in mass ratio will divide
It is added in deionized water from protein body, is stirred to obtain mixed liquor, by 50U/g, papain is added to mixed liquor
In, pH to 7.0 is adjusted with 0.5mol/L sodium hydroxide, then rotation is evaporated to original volume 1/5 at 35 DEG C, obtains concentration enzymolysis liquid；
Graphite oxide and in mass ratio 1:8 are taken, 500 mesh graphite oxides are added in n,N-Dimethylformamide, juxtaposition is stirred
In 200W ultrasonic disperse 10min, dispersion liquid and 1:15 in mass ratio are collected, lauryl amine is added in dispersion liquid, is stirred
It is placed in insulation reaction 2h at 110 DEG C, collects reactant and with dehydrated alcohol centrifuge washing 3 times, vacuum refrigeration is done at 35 DEG C
It is dry, obtain modified particles；According to parts by weight, 45 parts of deionized waters, 35 parts of modified particles, 10 parts of concentration enzymolysis liquids are weighed respectively to set
In beaker, be stirred and stand 10h, obtain coagulant liquid, then according to parts by weight, respectively weigh 45 parts of coagulant liquids, 10 parts go
Ionized water and 3 parts of chitosans are placed in a beaker, and are stirred and are placed in ultrasonic disperse 10min under 200W, obtain dispersion liquid and be placed in
10h is stood at room temperature, obtains plural gel liquid；According to parts by weight, 45 parts of deionized waters, 25 parts of dehydrated alcohols, 3 parts are weighed respectively
Nickel nitrate, 6 parts of urea are placed in autoclave, the insulation reaction 10h at 175 DEG C, collect reaction solution and with deionized water with
Dehydrated alcohol respectively rinses 3 times respectively, collects nickel hydroxide, and 1:15 in mass ratio stirs nickel hydroxide and plural gel liquid
Mixing is placed in grinding distribution 10min in mortar, crosses 0.25 μm of sieve, collects dispersion gel liquid and is poured into mold, by mould
Tool, which is placed in dry at 100 DEG C, can be prepared into the high mating type electrode for super capacitor material to constant weight.
Embodiment 2
Defatted soybean meal is added in deionized water by 1:10 in mass ratio, is stirred and is adjusted with 1.5mol/L sodium hydroxide
PH to 8.0 is stirred and is placed in ultrasonic disperse 12min under 250W, collects dispersion slurries and is placed in 5750r/min centrifuge separation
12min, collect supernatant and use 1.5mol/L salt acid for adjusting pH to 4.5, at 2 DEG C water-bath be centrifuged, collection lower sediment be used in combination
Deionized water is washed to cleaning solution and is in neutrality, and vacuum freeze drying grinding obtains separation protein body；1:10 in mass ratio will divide
It is added in deionized water from protein body, is stirred to obtain mixed liquor, by 50U/g, papain is added to mixed liquor
In, pH to 7.0 is adjusted with 0.5mol/L sodium hydroxide, then rotation is evaporated to original volume 1/5 at 40 DEG C, obtains concentration enzymolysis liquid；
Graphite oxide and in mass ratio 1:8 are taken, 500 mesh graphite oxides are added in n,N-Dimethylformamide, juxtaposition is stirred
In 250W ultrasonic disperse 12min, dispersion liquid and 1:15 in mass ratio are collected, lauryl amine is added in dispersion liquid, is stirred
It is placed in insulation reaction 2h at 117 DEG C, collects reactant and with dehydrated alcohol centrifuge washing 4 times, vacuum refrigeration is done at 37 DEG C
It is dry, obtain modified particles；According to parts by weight, 47 parts of deionized waters, 4 parts of modified particles, 12 parts of concentration enzymolysis liquids are weighed respectively to set
In beaker, be stirred and stand 11h, obtain coagulant liquid, then according to parts by weight, respectively weigh 47 parts of coagulant liquids, 12 parts go
Ionized water and 4 parts of chitosans are placed in a beaker, and are stirred and are placed in ultrasonic disperse 12min under 250W, obtain dispersion liquid and be placed in
11h is stood at room temperature, obtains plural gel liquid；According to parts by weight, 47 parts of deionized waters, 27 parts of dehydrated alcohols, 4 parts are weighed respectively
Nickel nitrate, 7 parts of urea are placed in autoclave, the insulation reaction 11h at 177 DEG C, collect reaction solution and with deionized water with
Dehydrated alcohol respectively rinses 4 times respectively, collects nickel hydroxide, and 1:15 in mass ratio stirs nickel hydroxide and plural gel liquid
Mixing is placed in grinding distribution 12min in mortar, crosses 0.27 μm of sieve, collects dispersion gel liquid and is poured into mold, by mould
Tool, which is placed in dry at 105 DEG C, can be prepared into the high mating type electrode for super capacitor material to constant weight.
Embodiment 3
Defatted soybean meal is added in deionized water by 1:10 in mass ratio, is stirred and is adjusted with 1.5mol/L sodium hydroxide
PH to 8.0 is stirred and is placed in ultrasonic disperse 15min under 300W, collects dispersion slurries and is placed in 6000r/min centrifuge separation
15min, collect supernatant and use 1.5mol/L salt acid for adjusting pH to 4.5, at 5 DEG C water-bath be centrifuged, collection lower sediment be used in combination
Deionized water is washed to cleaning solution and is in neutrality, and vacuum freeze drying grinding obtains separation protein body；1:10 in mass ratio will divide
It is added in deionized water from protein body, is stirred to obtain mixed liquor, by 50U/g, papain is added to mixed liquor
In, pH to 7.0 is adjusted with 0.5mol/L sodium hydroxide, then rotation is evaporated to original volume 1/5 at 45 DEG C, obtains concentration enzymolysis liquid；
Graphite oxide and in mass ratio 1:8 are taken, 500 mesh graphite oxides are added in n,N-Dimethylformamide, juxtaposition is stirred
In 300W ultrasonic disperse 15min, dispersion liquid and 1:15 in mass ratio are collected, lauryl amine is added in dispersion liquid, is stirred
It is placed in insulation reaction 3h at 125 DEG C, collects reactant and with dehydrated alcohol centrifuge washing 5 times, vacuum refrigeration is done at 40 DEG C
It is dry, obtain modified particles；According to parts by weight, 50 parts of deionized waters, 5 parts of modified particles, 15 parts of concentration enzymolysis liquids are weighed respectively to set
In beaker, be stirred and stand 12h, obtain coagulant liquid, then according to parts by weight, respectively weigh 50 parts of coagulant liquids, 15 parts go
Ionized water and 5 parts of chitosans are placed in a beaker, and are stirred and are placed in ultrasonic disperse 15min under 300W, obtain dispersion liquid and be placed in
12h is stood at room temperature, obtains plural gel liquid；According to parts by weight, 50 parts of deionized waters, 30 parts of dehydrated alcohols, 5 parts are weighed respectively
Nickel nitrate, 8 parts of urea are placed in autoclave, the insulation reaction 12h at 180 DEG C, collect reaction solution and with deionized water with
Dehydrated alcohol respectively rinses 5 times respectively, collects nickel hydroxide, and 1:15 in mass ratio stirs nickel hydroxide and plural gel liquid
Mixing is placed in grinding distribution 15min in mortar, crosses 0.28 μm of sieve, collects dispersion gel liquid and is poured into mold, by mould
Tool, which is placed in dry at 110 DEG C, can be prepared into the high mating type electrode for super capacitor material to constant weight.
Performance test:
The electricity of electrode for super capacitor material and unbonded nickel-base material prepared by technical solution of the present invention embodiment 1,2,3
Pole material (control group) is that experimental subjects is tested, and will be cut into 1 × 1cm2Area is used as working electrode, is electricity with 1MKOH
Solution liquid is tested for the property it using the chemical property of three-electrode system test job electrode, the number of specific performance test
According to see the table below shown in table 1:
The 1 performance table of comparisons of table
Under the sweep speed of test 800mV/s, cyclic voltammetry curve keeps good matrix shape, effectively illustrates it with excellent
Capacitive property and cycle characteristics.
Claims (10)
1. a kind of preparation method of high mating type electrode for super capacitor material, it is characterised in that specific preparation step are as follows:
(1) defatted soybean meal enzymolysis processing, spin concentration are obtained concentration enzymolysis liquid by 1:10 in mass ratio；Take graphite oxide and by matter
Graphite oxide is added in n,N-Dimethylformamide by amount than 1:8, is stirred and ultrasonic disperse, collection dispersion liquid are simultaneously pressed
Mass ratio 1:15, lauryl amine is added in dispersion liquid, is stirred simultaneously insulation reaction, collects reactant and centrifuge washing, cold
It is lyophilized dry, obtains modified particles；
(2) according to parts by weight, 45~50 parts of deionized waters, 3~5 parts of modified particles, 10~15 parts of concentration enzymatic hydrolysis are weighed respectively
Liquid is placed in a beaker, and is stirred and stands 10~12h, obtains coagulant liquid, then according to parts by weight, is weighed 45~50 parts respectively and is coagulated
Glue, 10~15 parts of deionized waters and 3~5 parts of chitosans are placed in a beaker, and are stirred juxtaposition ultrasonic disperse, are obtained dispersion liquid simultaneously
It is placed in and stands at room temperature, obtain plural gel liquid；
(3) according to parts by weight, 45~50 parts of deionized waters, 25~30 parts of dehydrated alcohols, 3~5 parts of nickel nitrates, 6 are weighed respectively
~8 parts of urea are placed in autoclave, and high pressure heat-preserving reaction collects reaction solution and carrying out washing treatment, nickel hydroxide collected, by matter
Nickel hydroxide and plural gel liquid are stirred than 1:15 and are placed in grinding distribution in mortar by amount, and the screen to filtrate collects dispersion
Coagulant liquid is simultaneously poured into mold, dry to constant weight, can be prepared into the high mating type electrode for super capacitor material.
2. a kind of preparation method of high mating type electrode for super capacitor material according to claim 1, feature exist
In: the enzymolysis processing step are as follows: defatted soybean meal is added in deionized water by 1:10 in mass ratio, is stirred and is used in combination
1.5mol/L sodium hydroxide adjusts pH to 8.0, is stirred and is placed in 10~15min of ultrasonic disperse under 200~300W, collects and divides
Scattered slurries are placed in 5500~6000r/min and are centrifugated 10~15min, collect supernatant and with 1.5mol/L salt acid for adjusting pH
To 4.5, water-bath centrifugation is collected lower sediment and is washed with deionized to cleaning solution and is in neutrality, and vacuum freeze drying grinding obtains
Protein isolate particle；Protein isolate particle is added in deionized water by 1:10 in mass ratio, is stirred to obtain mixed liquor, will
Papain is added in mixed liquor, is adjusted pH to 7.0 and is carried out enzymolysis processing.
3. a kind of preparation method of high mating type electrode for super capacitor material according to claim 2, feature exist
In: the enzymolysis processing using the papain of 50U/g.
4. a kind of preparation method of high mating type electrode for super capacitor material according to claim 1, feature exist
In: the spin concentration is that rotation is evaporated to original volume 1/5 at 35~45 DEG C, obtains concentration enzymolysis liquid.
5. a kind of preparation method of high mating type electrode for super capacitor material according to claim 1, feature exist
In: the graphite oxide partial size is 500 mesh.
6. a kind of preparation method of high mating type electrode for super capacitor material according to claim 1, feature exist
In: the high pressure heat-preserving reaction temperature is 175~180 DEG C.
7. a kind of preparation method of high mating type electrode for super capacitor material according to claim 1, feature exist
In: the carrying out washing treatment is respectively to be rinsed 3~5 times respectively with deionized water and dehydrated alcohol.
8. a kind of preparation method of high mating type electrode for super capacitor material according to claim 1, feature exist
In: it is that 0.25~0.28 μm of sieve is filtered that the screen to filtrate, which is with aperture,.
9. a kind of preparation method of high mating type electrode for super capacitor material according to claim 1, feature exist
In: the mold drying temperature is 100~110 DEG C.
10. a kind of preparation method of high mating type electrode for super capacitor material according to claim 2, feature exist
In: the water-bath centrifuging temperature is 0~5 DEG C.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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