CN108010743B - A kind of preparation method of hollow hydrogel flexible super capacitor electrode material - Google Patents
A kind of preparation method of hollow hydrogel flexible super capacitor electrode material Download PDFInfo
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Abstract
The invention discloses a kind of preparation methods of hollow hydrogel flexible super capacitor electrode material, it will be uniformly brushed after biomass polymers matrix wiring solution-forming in conductive mould material surface, it is placed in regeneration in deionized water again and forms hydrogel, one layer of conducting polymer is deposited using being electrochemically-deposited on mould material, it finally etches away conductive mould material and obtains hollow hydrogel flexible super capacitor electrode material, there is the electrode material high-intensitive and super hydrophilic/water-retaining property ensure that the fabulous flexibility of material and extremely strong ionic adsorption, conductive polymer minor structure interconnected imparts the fabulous electric conductivity of material, unique hollow network structure improves the porosity and ion conduction rate of material pole, hollow hydrogel flexible super capacitor prepared by the present invention has very excellent chemical property, it is molten by polymer Liquid type can produce the hollow hydrogel supercapacitor with different functionalities, have broad application prospects in flexible electronic device field.
Description
Technical field
The invention belongs to chemical industry and polymer-function material technical field, especially a kind of hollow hydrogel flexible super electricity
The preparation method of container electrode material.
Background technique
Since the 21th century, with the fast development of global economy, diversified traffic communication tool, electronic product are not
Disconnected emerge in large numbers promotes human lives to become more and more convenient, and the mankind gradually reinforce the dependence of the energy, however, fossil fuel is excessive
Consumption and energy demand are growing, and the development and application of sustainable energy becomes the focus of social concerns and the weight of scientific research
Point, slowing down energy consumption and improving energy storage ability becomes the effective way of human kind sustainable development, wherein electrochemical energy
Effective storage and be current to obtain the most important two ways of sustainable energy by sustainable resource conversion.Super capacitor
Device is called electrochemical capacitor, capacitor with super capacity or double layer capacitor, is a kind of between chemical cell and common tradition
Between capacitor, while the new type of energy storage device of the two feature is had both again, with high power density, wide operating temperature range, height
The superior functions such as stability and safety and good cycle life, it is considered to be one of most potential energy storage equipment,
The research work for carrying out supercapacitor has very big realistic meaning and social benefit.Electrode material for super capacitor at present
Mostly membrane material, powder or porous carbon materials etc..These materials have the defects that certain, and the specific surface area such as membrane material is low,
The assembling process of dusty material is complicated, and the mechanical flexibility of porous carbon materials is poor.
In recent years, hydrogel electrode material for super capacitor is widely noticed, the unique tridimensional network of hydrogel, high ratio
Surface area can accelerate the contact area of electrode material and electrolyte, promote fast moving for ion, be capable of providing forthright compared with high power
Can, good swelling behavior can also increase the service life of material.Conducting polymer hydrogel has both the swelling of gel rubber material
The electro-chemical activity of hydrophily and conducting polymer is the ideal material of high performance electrode material, however conducting polymer water-setting
The weak mechanical performance of glue limits its application and develops.
Cellulose is by one of the most abundant natural polymer in the world, it is considered to be it is a kind of inexhaustible, it is inexhaustible
Renewable resource.Cellulose has many advantages, such as renewable, biodegradable, environmental-friendly, pollution-free, is that technical grade is sustainable
The main source of material.In addition, cellulose has good mechanical performance, ideal biomass reinforcing material can be used as, so far
Report there are no related cellulose aquagel enhancing conducting polymer as electrode material for super capacitor.
Summary of the invention
For problem of the prior art, the purpose of the present invention is to provide it is a kind of be simple and efficient, energy conservation and environmental protection, low cost
The preparation method of hollow hydrogel flexible super capacitor electrode material is expected to push the hair of hydrogel flexible super capacitor
Exhibition, meets the market demand of flexible electronic device.
In order to realize above-mentioned technical purpose, the technical solution of the present invention is as follows:
A kind of preparation method of hollow hydrogel flexible super capacitor electrode material comprising following steps:
(1) prepared polymer Matrix Solution
Using cellulose as polymeric matrix, it is successively immersed in water, methanol, handles 1-1.5 h in dimethyl acetamide,
Then polymeric matrix is dissolved in using DMAc/LiCl solution to obtain the polymer matrix of 1-2 wt% in the solution of dicyandiamide solution
Liquid solution；
Wherein, the ratio of the DMAc and LiCl is g: 8-7 g of 92-93；
(2) electro-deposition mould material is prepared
Using nickel foam, copper mesh or iron net as conductive mould material, after being cleaned removal of impurities, then on conductive mould material
It uniformly brushes one layer of polymeric solution and is placed in deionized water and impregnate, make polymer solution on conductive mould material skeleton surface
Uniformly regeneration forms polyalcohol hydrogel；
When brushing the polymer solution on conductive mould material is cellulose solution, need to be dipped in deionized water
Organic solvent in cellulose solution is replaced to form regenerated fiber hydrogel by deionized water completely；
(3) electro-deposition electrolyte is prepared
A perchloric acid hydrate sodium solution is prepared, conductive high polymer monomer is added, is then uniformly mixing to obtain electrolyte；Its
In, the conductive high polymer monomer is pyrroles or aniline；
(4) electrochemical deposition
It uses sodium perchlorate/pyrroles's mixed solution for electrolyte, the nickel foam mould brushed and have cellulose solution is respectively adopted
Plate, calomel electrode and platinum plate electrode carry out electrochemical deposition as working electrode, reference electrode and to electrode, will after the completion of deposition
Working electrode, which is immersed in liquor ferri trichloridi, etches away nickel foam template, is finally cleaned repeatedly with deionized water in can be obtained
Empty hydrogel flexible super capacitor electrode material；
Wherein, electrochemical deposition device therefor is electrochemical workstation；Electrochemical deposition mode is chronoamperometry, timing
Potentiometry or cyclic voltammetry.
Further, in step (1), polymeric matrix is successively immersed in front of water, methanol, dimethyl acetamide, needs to carry out
It filters cleaning and removes the solvent being attached on polymeric matrix, be then dipped into again in a kind of lower solvent.
Further, in step (1), the ratio of DMAc and LiCl in the DMAc/LiCl solution are 92 g: 8 g.
Further, in step (1), the concentration of cellulose is 1 wt%.
Further, in step (2), the conductive mould material is nickel foam, and cleaning removal of impurities includes that it is used third respectively
Ketone, hydrochloric acid and deionized water are cleaned by ultrasonic 15 min removal of impurities, wherein concentration of hydrochloric acid used is 6 mol/L.
Preferably, in step (2), polymer solution is repeatedly equal in nickel foam one side using banister brush in brushing process
Even brushing is until another side complete wetting polymer solution.
Preferably, in step (2), will brush, which has the nickel foam of cellulose solution to be placed in deionized water, is stirred, and every 4
Hour changes a deionized water, until displacing the organic solvent in cellulose solution completely, forms regenerated fiber hydrogel.
Further, in step (3), the concentration and volume of a perchloric acid hydrate sodium of preparation are respectively 0.3 mol/L and 50
Ml, when conducting polymer monomer is pyrroles, the volume that the conductive high polymer monomer in a perchloric acid hydrate sodium is added is 2.5
ml。
Further, in step (4), when depositional model is chronoamperometry, applied voltage is 0.8 volt, and sedimentation time is
300 s。
Further, further include that post-depositional working electrode is soaked in 1 mol/L liquor ferri trichloridi in step (4), use
In etching away nickel foam mould material and form it into hollow three dimensional pore structures.
The present invention uses above-mentioned technical solution, compared with prior art, the device have the advantages that are as follows:
1, the present invention uses cellulose aquagel for capacitor electrode material for the first time, takes full advantage of the high-strength of cellulose
The features such as spending, be super hydrophilic, renewable, biodegradable, environmental-friendly；
2, the range of choice of Inventive polymers is wide, it is not limited to which the biomass such as gelatin, pectin also can be selected in cellulose
Material is hydrogel matrix material, and the synthesis macromolecule such as polyvinyl alcohol also can be selected as hydrogel matrix material；
3, the conductive mould material that the present invention selects can be the porous materials such as nickel foam, copper mesh, iron net, and nickel foam is selected to make
When to deposit mould material, at low cost, pore structure is uniform, acid and alkali-resistance under room temperature, and can be etched in salting liquid, avoids
Use acid or alkali；
4, the present invention selects polypyrrole conducting polymer, and molecular mass is small, has high theoretical capacity and volume ratio
Capacity, it is easily molded, resistant to chemical etching, density is low, nonhazardous, its polymerization, process are just able to achieve by simple electrochemical deposition
Simply, it is generated without using toxic reagent, without toxic and harmful gas substance；
5, hollow hydrogel flexible super capacitor film produced by the present invention has high intensity, high conductivity, super hydrophilic etc.
The advantages of；
6, hollow hydrogel flexible electronic device is made with very strong mechanical flexibility in the present invention, can arbitrarily bend, roll up
Song can prepare hollow hydrogel flexible super capacitor of different shapes by cutting mould material of different shapes；
7, in hollow hydrogel flexible super capacitor produced by the present invention, cellulose aquagel has Superhydrophilic,
In aqueous electrolyte system, this structure is conducive to the absorption and infiltration of electrolyte intermediate ion；
8, in hollow hydrogel flexible super capacitor produced by the present invention, polypyrrole conducting polymer, which forms, mutually to be interconnected
The hollow conductive network connect；
9, hydrogel flexible super capacitor produced by the present invention is special hollow structure, this structure is conducive to electrolyte
In ionic conduction；
10, hollow hydrogel flexible super capacitor prepared by the present invention has very excellent chemical property, passes through
Change polyalcohol hydrogel, the hollow hydrogel flexible electronic device with different functionalities can be prepared, in flexible electronic device
Field has great application prospect.
Detailed description of the invention
The present invention program is further elaborated with reference to the accompanying drawings and detailed description:
Fig. 1 is the SEM cross-section diagram of hollow hydrogel, and wherein a-c is the SEM cross-section diagram of the hollow hydrogel of pure cellulose, d-f
For the SEM cross-section diagram of the hollow hydrogel of pure polypyrrole, g-i is the SEM cross-section diagram of the hollow hydrogel of cellulose/polypyrrole；
Fig. 2 is hollow cellulose/polypyrrole hydrogel measuring mechanical property figure；
Fig. 3 is chemical property of the hollow hydrogel flexible super capacitor under bipolar electrode system.
Specific embodiment
A kind of preparation method of hollow hydrogel flexible super capacitor electrode material comprising following steps:
(1) prepared polymer Matrix Solution
Using cellulose as polymeric matrix, it is successively immersed in water, methanol, handles 1-1.5 h in dimethyl acetamide,
Then polymeric matrix is dissolved in using DMAc/LiCl solution to obtain the polymer matrix of 1-2 wt% in the solution of dicyandiamide solution
Liquid solution；
Wherein, the ratio of the DMAc and LiCl is g: 8-7 g of 92-93；
(2) electro-deposition mould material is prepared
Using nickel foam, copper mesh or iron net as conductive mould material, after being cleaned removal of impurities, then on conductive mould material
It uniformly brushes one layer of polymeric solution and is placed in deionized water and impregnate, make polymer solution on conductive mould material skeleton surface
Uniformly regeneration forms polyalcohol hydrogel；
When brushing the polymer solution on conductive mould material is cellulose solution, need to be dipped in deionized water
Organic solvent in cellulose solution is replaced to form regenerated fiber hydrogel by deionized water completely；
(3) electro-deposition electrolyte is prepared
A perchloric acid hydrate sodium solution is prepared, conductive high polymer monomer is added, is then uniformly mixing to obtain electrolyte；Its
In, the conductive high polymer monomer is pyrroles or aniline；
(4) electrochemical deposition
It uses sodium perchlorate/pyrroles's mixed solution for electrolyte, the nickel foam mould brushed and have cellulose solution is respectively adopted
Plate, calomel electrode and platinum plate electrode carry out electrochemical deposition as working electrode, reference electrode and to electrode, will after the completion of deposition
Working electrode, which is immersed in liquor ferri trichloridi, etches away nickel foam template, is finally cleaned repeatedly with deionized water in can be obtained
Empty hydrogel flexible super capacitor electrode material；
Wherein, electrochemical deposition device therefor is electrochemical workstation；Electrochemical deposition mode is chronoamperometry, timing
Potentiometry or cyclic voltammetry.
Further, in step (1), polymeric matrix is successively immersed in front of water, methanol, dimethyl acetamide, needs to carry out
It filters cleaning and removes the solvent being attached on polymeric matrix, be then dipped into again in a kind of lower solvent.
Further, in step (2), the conductive mould material is nickel foam, and cleaning removal of impurities includes that it is used third respectively
Ketone, hydrochloric acid and deionized water are cleaned by ultrasonic 15 min removal of impurities, wherein concentration of hydrochloric acid used is 6 mol/L, it is preferred that step (2)
In, polymer solution is uniformly brushed repeatedly in nickel foam one side until another side soaks completely in brushing process, using banister brush
Until moistening polymer solution, it is preferred that in step (2), will brush, which has the nickel foam of cellulose solution to be placed in deionized water, is stirred
It mixes, and changed a deionized water every 4 hours, until displacing the organic solvent in cellulose solution completely, it is fine to form regeneration
Tie up hydrogel.
Further, further include that post-depositional working electrode is soaked in 1 mol/L liquor ferri trichloridi in step (4), use
In etching away nickel foam mould material and form it into hollow three dimensional pore structures.
Embodiment 1
A kind of preparation method of hollow hydrogel flexible super capacitor electrode material comprising following steps:
(1) prepared polymer Matrix Solution
Using cellulose as polymeric matrix, it is successively immersed in water, methanol, handles 1-1.5 h in dimethyl acetamide,
Then polymeric matrix is dissolved in using DMAc/LiCl solution to obtain the polymer matrix of 1-2 wt% in the solution of dicyandiamide solution
Liquid solution；Wherein, the ratio of the DMAc and LiCl is 92g: 8 g, and the concentration of cellulose is 1 wt%, when polymeric matrix according to
It is secondary to be immersed in front of water, methanol, dimethyl acetamide, it need to carry out filtering the solvent that cleaning removing is attached on polymeric matrix,
Then it is dipped into again in a kind of lower solvent；
(2) electro-deposition mould material is prepared
Using nickel foam as conductive mould material, clean after removal of impurities that (it includes that it is used to acetone, salt respectively that cleaning, which cleans,
Acid and deionized water are cleaned by ultrasonic 15 min removal of impurities, wherein concentration of hydrochloric acid used is 6 mol/L), then on conductive mould material
It uniformly brushes one layer of cellulose solution to be placed on soaking and stirring in deionized water and changed a deionized water every 4 hours, makes to gather
Polymer solution uniformly regenerates on conductive mould material skeleton surface forms polyalcohol hydrogel, and in brushing process, uses
Banister brush is uniformly brushed until another side complete wetting polymer solution repeatedly in nickel foam one side；Wherein cellulose solution
The organic solvent that need to be dipped in deionized water in cellulose solution is replaced to form regenerated cellulose water by deionized water completely
Gel；
(3) electro-deposition electrolyte is prepared
The perchloric acid hydrate sodium solution that 50 ml concentration are 0.3 mol/L is prepared, 2.5 ml pyrroles is added, then stirs
It mixes and uniformly obtains electrolyte；
(4) electrochemical deposition
It uses sodium perchlorate/pyrroles's mixed solution for electrolyte, the nickel foam mould brushed and have cellulose solution is respectively adopted
Plate, calomel electrode and platinum plate electrode carry out electrochemical deposition as working electrode, reference electrode and to electrode, will after the completion of deposition
Working electrode is soaked in 1 mol/L liquor ferri trichloridi, for etching away nickel foam mould material and forming it into hollow three
Pore structure is tieed up, finally being cleaned repeatedly with deionized water can be obtained hollow hydrogel flexible super capacitor electrode material；
Wherein, electrochemical deposition device therefor is electrochemical workstation；Electrochemical deposition mode is chronoamperometry, used
Voltage is 0.8 volt, and sedimentation time is 300 s.
As shown in Figure 1, wherein Fig. 1 a-c is SEM cross-section diagram of the doughnut hydrogel under different amplification,
It brushes to be placed on to regenerate in deionized water in nickel foam for cellulose solution can form one layer of fibre on nickel foam skeleton surface
Hydrogel film is tieed up, cellulose aquagel replicates nickel foam skeleton structure completely, obtains hollow water after etching away nickel foam
Gel, as seen from the figure, observation can find that cellulose surface is smooth under high magnification.
Fig. 1 d-f is SEM cross-section diagram of the hollow polypyrrole hydrogel under different multiples, and being can by electrochemical deposition
In one strata pyrroles's conductive layer of nickel foam area load, hollow interconnected conductive network knot is formed after etching away nickel foam
Structure, observation can find polypyrrole rough surface under high magnification.
Fig. 1 h-i is the hollow hydrogel electrode material for super capacitor (i.e. hollow cellulose/polypyrrole Compound Water of the present invention
Gel) SEM cross-section diagram under different amplification, wherein cellulose/polypyrrole composite hydrogel equally presents hollow porous
Structure, and a kind of class core-shell structure is formed it has been observed that cellulose aquagel film is covered in polypyrrole surface under high magnification.
Fig. 2 is the hollow hydrogel electrode material for super capacitor (i.e. hollow cellulose/polypyrrole compound water congealing of the present invention
Glue) mechanical performance figure, by Fig. 2 a it is found that hollow cellulose/polypyrrole composite hydrogel have certain flexibility and mechanical strength, can
Bending, curling, also can be made into different shape, by Fig. 2 b it is found that being added after cellulose, the mechanical performance of composite hydrogel obtains
It increasing considerably, ultimate tensile strength is improved from 21.7KPa to 183.6KPa, and elongation at break is improved from 14.7% to 19.4%,
Elasticity modulus is improved from 0.19MPa to 1.11MPa.
Fig. 3 is the hollow hydrogel electrode material for super capacitor (i.e. hollow cellulose/polypyrrole compound water congealing of the present invention
Glue) chemical property under bipolar electrode system, from Fig. 3 a it is found that the cyclic voltammetry curve of composite hydrogel is in good symmetrical
Rectangular-shaped, sweep speed is lower, and rectangular shape is more obvious, and shows that the internal resistance of electrode material is smaller and system is reversible, capacitor with
There is faster ionic adsorption/diffusion process between electrolyte, there is ideal capacitance behavior, Fig. 3 b is composite hydrogel in electrolyte
In charging and discharging curve, it is seen then that in burning voltage window ranges and under different current density, all charging and discharging curves have
Good symmetry, electrode potential change linearly at any time, and without obvious voltage drop, it is extremely low to illustrate that composite hydrogel has
Interior resistance and show ideal electrochemical capacitor characteristic.It is calculated under different current densities by the electric discharge branch of charging and discharging curve
Specific capacitance, as a result as shown in Figure 3c, when current density is 0.25 A/g, quality specific capacitance is 255 F/g, and with electric current
The increase of density, specific capacitance slowly reduce.Fig. 3 d be composite hydrogel carry out EIS test within the scope of 100kHz-0.01 Hz and
Obtained nyquist diagram.In low-frequency range, curve is substantially in a vertical line close to Y-axis, illustrates composite hydrogel
With good capacitance behavior.By the amplification illustration in nyquist diagram as it can be seen that in high-frequency range, nyquist plot and X
The intersection point of axis represents the equivalent series resistance of electrode, i.e. bath resistance, connection line resistance, carbon material resistance and carbon material is living
Property interface and electrolyte interface between contact resistance, as seen from the figure, composite hydrogel have lower equivalent resistance (1.22 Ω),
Electronics conduction velocity with higher between electrolyte and active material, the hollow hydrogel electrode material for super capacitor of the present invention
Strong hydrophilicity/the guarantor of (i.e. hollow cellulose/polypyrrole composite hydrogel) special hollow class core-shell structure and cellulose aquagel
It is aqueous, be conducive to absorption and the mass transfer of electrolyte, to improve chemical property.
Hollow hydrogel prepared by the present invention has the reason of good electrochemistry: interconnected polypyrrole network structure
Hydrogel is imparted with fabulous electric conductivity and fake capacitance；The special hollow class core-shell structure of composite hydrogel ensure that material
The high porosity of material forms the ion conduction pathway of lower resistance, the good mechanicalness of polypyrrole surface fiber hydrogel film
Can make hydrogel have certain intensity and flexibility, strong operability, meanwhile, super hydrophilic/water-retaining property of cellulose aquagel
The absorption permeability for accelerating electrolyte intermediate ion is conducive to improve conduction speed of the ion between polypyrrole layer and electrolyte interface
Rate.The above synergistic effect promotes the hollow hydrogel of preparation to have good chemical property, has in flexible electronic device field
There is great application prospect.
The above, the only present invention preferably several specific embodiments, but protection scope of the present invention is not limited to
In this, anyone skilled in the art within the technical scope of the present disclosure, technical side according to the present invention
Case and its inventive concept are subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of preparation method of hollow hydrogel flexible super capacitor electrode material, it is characterised in that: it includes following step
It is rapid:
(1) prepared polymer Matrix Solution
Using cellulose as polymeric matrix, it is successively immersed in water, methanol, handles 1-1.5 h in dimethyl acetamide, then
Polymeric matrix is dissolved in using DMAc/LiCl solution to obtain the cellulose solution of 1-2 wt% in the solution of dicyandiamide solution；
Wherein, the ratio of the DMAc and LiCl is g: 8-7 g of 92-93；
(2) electro-deposition mould material is prepared
Using nickel foam, copper mesh or iron net as conductive mould material, after being cleaned removal of impurities, then on conductive mould material uniformly
It brushes one layer of cellulose solution and is placed in deionized water and impregnate, keep cellulose solution uniform on conductive mould material skeleton surface
Form regenerated fiber hydrogel；
Wherein, the organic solvent that need to be dipped in deionized water in cellulose solution is replaced to be formed again by deionized water completely
Raw cellulose aquagel；
(3) electro-deposition electrolyte is prepared
A perchloric acid hydrate sodium solution is prepared, conductive high polymer monomer is added, is then uniformly mixing to obtain electrolyte；Wherein,
The conductive high polymer monomer is pyrroles or aniline；
(4) electrochemical deposition
Use sodium perchlorate/pyrroles or sodium perchlorate/aniline mixed solution for electrolyte, brushing, which is respectively adopted, cellulose solution
Nickel foam, copper mesh or iron net template, calomel electrode and platinum plate electrode as working electrode, reference electrode and to electrode carry out electricity
Working electrode is immersed in liquor ferri trichloridi after the completion of deposition and etches away nickel foam, copper mesh or iron net template by chemical deposition,
Finally being cleaned repeatedly with deionized water can be obtained hollow hydrogel flexible super capacitor electrode material；
Wherein, electrochemical deposition device therefor is electrochemical workstation；Electrochemical deposition mode is chronoamperometry, time-measuring electric potential
Method or cyclic voltammetry.
2. a kind of preparation method of hollow hydrogel flexible super capacitor electrode material according to claim 1, special
Sign is: in step (1), polymeric matrix is successively immersed in front of water, methanol, dimethyl acetamide, need to carry out suction filtration cleaning
The solvent being attached on polymeric matrix is removed, is then dipped into again in a kind of lower solvent.
3. a kind of preparation method of hollow hydrogel flexible super capacitor electrode material according to claim 1, special
Sign is: in step (1), the ratio of DMAc and LiCl in the DMAc/LiCl solution are 92 g: 8 g.
4. a kind of preparation method of hollow hydrogel flexible super capacitor electrode material according to claim 1, special
Sign is: in step (1), the concentration of cellulose solution is 1 wt%.
5. a kind of preparation method of hollow hydrogel flexible super capacitor electrode material according to claim 1, special
Sign is: in step (2), the conductive mould material be nickel foam, cleaning removal of impurities include it is used respectively acetone, hydrochloric acid and
Deionized water is cleaned by ultrasonic 15 min removal of impurities, wherein concentration of hydrochloric acid used is 6 mol/L.
6. a kind of preparation method of hollow hydrogel flexible super capacitor electrode material according to claim 5, special
Sign is: in step (2), cellulose solution is uniformly brushed directly in brushing process, using banister brush in nickel foam one side repeatedly
Until another side complete wetting cellulose solution.
7. a kind of preparation method of hollow hydrogel flexible super capacitor electrode material according to claim 6, special
Sign is: in step (2), will brush, which has the nickel foam of cellulose solution to be placed in deionized water, is stirred, and changes one every 4 hours
Secondary deionized water forms regenerated fiber hydrogel until displacing the organic solvent in cellulose solution completely.
8. a kind of preparation method of hollow hydrogel flexible super capacitor electrode material according to claim 1, special
Sign is: in step (3), the concentration and volume of a perchloric acid hydrate sodium of preparation are respectively 0.3 mol/L and 50 ml, when leading
When electric polymer monomer is pyrroles, the volume that the conductive high polymer monomer in a perchloric acid hydrate sodium is added is 2.5 ml.
9. a kind of preparation method of hollow hydrogel flexible super capacitor electrode material according to claim 1, special
Sign is: in step (4), when depositional model is chronoamperometry, applied voltage is 0.8 volt, and sedimentation time is 300 s.
10. a kind of preparation method of hollow hydrogel flexible super capacitor electrode material according to claim 1, special
Sign is: post-depositional working electrode is soaked in 1 mol/L liquor ferri trichloridi in step (4), for etch away nickel foam,
Copper mesh or iron net mould material and form it into hollow three dimensional pore structures.
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| CN109437147B (en) * | 2018-10-31 | 2020-12-29 | 石狮市川大先进高分子材料研究中心 | Preparation method of multifunctional carbon foam |
| CN110767470B (en) * | 2019-10-25 | 2020-10-27 | 华南理工大学 | Super capacitor based on anti-freezing hydrogel electrolyte and preparation method thereof |
| CN111320242B (en) * | 2020-03-12 | 2022-10-21 | 江苏美淼环保科技有限公司 | Hydrophilic self-supporting multi-level pore passage electro-adsorption electrode, preparation method and membrane casting solution |
| CN114892223B (en) * | 2022-04-19 | 2024-05-28 | 武汉理工大学 | Method for electrodepositing natural polymer film by using polyaniline/polyvinyl alcohol electrode |
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