CN119400603B - All-solid-state light super capacitor based on carbon-rich carbon nitride conjugated polymer and preparation method thereof - Google Patents
All-solid-state light super capacitor based on carbon-rich carbon nitride conjugated polymer and preparation method thereofInfo
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- CN119400603B CN119400603B CN202411538532.0A CN202411538532A CN119400603B CN 119400603 B CN119400603 B CN 119400603B CN 202411538532 A CN202411538532 A CN 202411538532A CN 119400603 B CN119400603 B CN 119400603B
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- 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
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- 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
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- 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
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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
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Abstract
The invention relates to an all-solid-state light super capacitor based on carbon-rich carbon nitride conjugated polymer, which belongs to the technical field of solar photoelectric conversion and energy storage and comprises first conductive glass and second conductive glass, wherein one surface of the first conductive glass is provided with a first titanium dioxide nanocrystalline mesoporous film, one surface of the second conductive glass is provided with a second titanium dioxide nanocrystalline mesoporous film, carbon-rich carbon nitride conjugated polymer is arranged between the first titanium dioxide nanocrystalline mesoporous film and the second titanium dioxide nanocrystalline mesoporous film, and the outer sides of the first titanium dioxide nanocrystalline mesoporous film, the second titanium dioxide nanocrystalline mesoporous film and the carbon-rich carbon nitride conjugated polymer are sealed through insulating sealant. The invention also provides a preparation method of the all-solid-state light super capacitor.
Description
Technical Field
The invention belongs to the technical field of solar photoelectric conversion and energy storage, and relates to an all-solid-state light super capacitor based on carbon-rich carbon nitride conjugated polymer and a preparation method thereof.
Background
The light super capacitor is a device which induces photo-generated charge under illumination and stores the photo-generated charge, and releases the photo-generated charge to form current when needed. The prior art has the following problems:
(1) The photogenerated charge storage capacity is not high. The existing optical super capacitor is mainly formed by sharing a counter electrode between a photovoltaic electrode and an energy storage electrode. Light is absorbed through the photovoltaic material to generate photo-generated charge, which is then input to the energy storage electrode material for charge storage. The mechanism needs to be matched with the voltage window and the current between the photovoltaic electrode and the energy storage electrode, otherwise, great internal electronic loss can be generated, the photoelectric conversion and charge storage efficiency can be reduced, and the photo-generated charge storage capacity can be seriously affected.
(2) Problems with the use of electrolytes. Electrolytes are used in existing photo supercapacitors to facilitate photo-generated charge separation or to stabilize stored charges. Because the super capacitor uses huge surface to store charge, and the active surface comes from the nano Kong Huo mesoporous structure of the electrode material, only the liquid electrolyte can achieve good infiltration effect. However, the organic solvent in the liquid electrolyte is liable to burn or explode due to overheating, causing a problem of safety. If a solid electrolyte is used, the electrolyte and the electrode material are in a poor contact state in the small space, and therefore the surface activity is greatly affected, resulting in a serious decrease in the storage capacity. Meanwhile, as the light super capacitor needs to be exposed for a long time, the liquid electrolyte is easy to volatilize, the difficulty of device encapsulation can be increased, and the performance stability is reduced.
Disclosure of Invention
In view of the above, the present invention is directed to an all-solid-state optical super capacitor based on carbon-rich carbon nitride conjugated polymer and a preparation method thereof, wherein the all-solid-state optical super capacitor without electrolyte is prepared with Gao Guangsheng charge storage capacity.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The all-solid-state light super capacitor based on the carbon-rich carbon nitride conjugated polymer comprises first conductive glass and second conductive glass, wherein a first titanium dioxide nanocrystalline mesoporous film is arranged on a conductive surface of the first conductive glass, a second titanium dioxide nanocrystalline mesoporous film is arranged on a conductive surface of the second conductive glass, the carbon-rich carbon nitride conjugated polymer is arranged between the first titanium dioxide nanocrystalline mesoporous film and the second titanium dioxide nanocrystalline mesoporous film, and the outer sides of the first titanium dioxide nanocrystalline mesoporous film, the second titanium dioxide nanocrystalline mesoporous film and the carbon-rich carbon nitride conjugated polymer are sealed through insulating sealant.
In another aspect, the invention provides a method for preparing an all-solid-state optical supercapacitor based on a carbon-rich carbon nitride conjugated polymer, comprising the following steps:
S1, preparing a carbon-rich carbon nitride conjugated polymer;
s2, sintering titanium dioxide nanocrystalline mesoporous films on the conductive surfaces of the two pieces of conductive glass to obtain a conductive glass-TiO 2 nanocrystalline mesoporous film composite electrode;
S3, uniformly coating carbon-rich carbon nitride conjugated polymer on the surfaces of the titanium dioxide nanocrystalline mesoporous films of the two composite electrodes;
and S4, adopting insulating sealant to relatively bond the two composite electrodes coated with the carbon-rich carbon nitride conjugated polymer together, and obtaining the all-solid-state optical super capacitor.
Further, the preparation steps of the carbon nitride-rich conjugated polymer are as follows:
s11, mixing dicyandiamide, citric acid and deionized water according to a mass ratio of 1:1.9:60 to obtain a reactant;
S12, introducing reactants into a hydrothermal reaction kettle, and carrying out hydrothermal reaction at 200 ℃ for 3 hours to obtain a precursor;
S13, hermetically storing the precursor in an ammonia atmosphere at room temperature for 3-14 months for curing reaction to obtain an aqueous solution of the carbon-rich carbon nitride conjugated polymer;
and S14, freeze-drying the aqueous solution of the carbon-rich carbon nitride conjugated polymer at the temperature of-80 ℃ and the vacuum degree of below 30Pa to obtain the carbon-rich carbon nitride conjugated polymer solid material.
The area of the titanium dioxide nanocrystalline film is 3cm multiplied by 3cm to 9cm multiplied by 9cm, and the thickness is 10 mu m to 30 mu m.
In step S3, uniformly mixing 10-100 mg of carbon-rich carbon nitride conjugated polymer with 1-10 mu l of deionized water to prepare slurry, and uniformly coating the slurry on the surfaces of TiO 2 on the two conductive glass-TiO 2 nanocrystalline mesoporous film composite electrodes by a doctor-blading method.
The invention has the beneficial effects of (1) material property. The prior art uses two materials, photovoltaic and energy storage materials, for photo-generated charge generation and storage. The invention adopts a material, namely carbon-rich carbon nitride conjugated polymer with double functions of light absorption and charge storage to realize the generation and storage of photo-generated charge. The device has the advantages of greatly simplifying the structure of the device, avoiding the matching and coordination problem between two materials, realizing high-level coordination, effectively reducing the internal electronic loss and the electronic transmission loss between electrodes and improving the photo-generated charge storage capacity. (2) device structural aspects. And the electrolyte is not adopted, so that a series of problems caused by the electrolyte are completely avoided. Such as unstable performance due to volatilization and leakage of the electrolyte, unsafe use due to flammability of the electrolyte, etc. The all-solid-state device is more beneficial to long-term stability and safety of use, and the integration with other functional devices is also greatly improved. (3) photogenerated charge storage performance. The single battery can obtain photo-generated charge storage capacity not lower than 170mC cm -2, the working voltage window is-2.5V, a remarkable color change effect appears in the photo-charge-discharge process, and the photo-generated charge storage battery has a visual energy storage characteristic.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in the following preferred detail with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of an optical supercapacitor;
FIG. 2 is a flow chart of a process for fabricating an optical super capacitor;
FIG. 3 is a typical Cyclic Voltammetry (CV) curve of an all-solid-state light supercapacitor and its color change at different potentials;
FIG. 4 is a typical charge-discharge curve of an all-solid state light supercapacitor;
FIG. 5 is a graph of the energy band structure relationship between titanium dioxide (TiO 2) and carbon-rich carbon nitride Conjugated Polymer (CPCN) in an all-solid state optical supercapacitor;
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the illustrations provided in the following embodiments merely illustrate the basic idea of the present invention by way of illustration, and the following embodiments and features in the embodiments may be combined with each other without conflict.
It should be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present invention by way of illustration, and only the components related to the present invention are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.
In the following description, numerous details are set forth in order to provide a more thorough explanation of embodiments of the present invention, it will be apparent, however, to one skilled in the art that embodiments of the present invention may be practiced without these specific details, in other embodiments, well-known structures and devices are shown in block diagram form, rather than in detail, in order to avoid obscuring the embodiments of the present invention.
As shown in fig. 1, the invention provides an all-solid-state optical super capacitor based on carbon-rich carbon nitride conjugated polymer, which uses conductive glass (FTO or ITO) as a conductive substrate and an optical window, uses a titanium dioxide nanocrystalline mesoporous film as an electron transmission material and a charge storage auxiliary material, uses carbon-rich carbon nitride Conjugated Polymer (CPCN) as a light absorption and photogeneration charge storage material, and uses insulating sealant as an insulating spacer between two pieces of conduction band glass. Thus, the all-solid-state photogenerated charge storage device is prepared by adopting a symmetrical capacitor structure without electrolyte, namely conductive glass// TiO 2//CPCN//TiO2// conductive glass.
As shown in fig. 2, the preparation process flow of the optical super capacitor is as follows:
① Preparing the carbon-rich carbon nitride conjugated polymer.
② And sintering a titanium dioxide (TiO 2) nanocrystalline mesoporous film with a certain thickness on the conductive glass to obtain the conductive glass/TiO 2 nanocrystalline mesoporous film composite electrode.
③ Uniformly coating carbon-rich carbon nitride Conjugated Polymer (CPCN) on the surfaces of TiO 2 of the two composite electrodes for standby.
④ And (3) relatively bonding the two composite electrodes loaded with CPCN together by adopting insulating sealant to obtain the all-solid-state optical super capacitor with the structure of conductive glass// TiO 2//CPCN//TiO2// conductive glass.
As shown in FIG. 3, when the cyclic voltammetry characteristic test is carried out under illumination, the typical CV curve of the all-solid-state light super capacitor is characterized in that two remarkable positive current peaks are arranged in the range of-0.6V to 0.6V, one short positive current peak is arranged in the range of 0.6V to 2.5V, one negative current peak is arranged in the range of 0.6V to 0V, and two negative current peaks are arranged in the range of 0V to-1.2V. The working voltage window is-2.5V. With voltage changes, the device will exhibit a reversible color change from blue to golden to blue.
As shown in FIG. 4, when constant current charge-discharge (GCD) test is performed under illumination, the typical GCD curve of the all-solid-state light super capacitor is characterized in that ① charging voltage ranges from-0.6V to 2.5V, and discharging voltage ranges from 0.6V to-2.5V. ② During charging, 2 linear segments of voltage varying with the amount of stored charge appear on the GCD curve, and during discharging, 1 linear segment of voltage varying with the amount of discharged charge appears on the GCD curve. ③ Coulombic efficiency is greater than 100%.
As shown in FIG. 5, the energy band structure relationship of the titanium dioxide and the carbon-rich carbon nitride conjugated polymer adopted by the invention is that the band gap value of the titanium dioxide is 3.22eV, the band gap value of the carbon-rich carbon nitride conjugated polymer is 1.74eV, the conduction band bottom energy value of the titanium dioxide is higher than the LUMO orbit energy value of the carbon-rich carbon nitride conjugated polymer, and the valence band top energy value of the titanium dioxide is higher than the HOMO orbit energy value of the carbon-rich carbon nitride conjugated polymer.
Example 1
An all-solid-state optical supercapacitor based on carbon-rich carbon nitride conjugated polymer, the manufacturing process of which comprises the following steps:
(1) Preparation of carbon-rich carbon nitride conjugated polymer
Dicyandiamide, citric acid and deionized water are mixed in a mass ratio of 1:1.9:60 to obtain a reactant. The reactants are led into a hydrothermal reaction kettle to carry out hydrothermal reaction at 200 ℃ for 3 hours, and precursors are obtained. And (3) hermetically preserving the precursor for 8 months under the room temperature condition and in an ammonia atmosphere to perform curing reaction to obtain the carbon-nitride-rich conjugated polymer aqueous solution. And freeze-drying the carbon-rich carbon nitride conjugated polymer aqueous solution at the temperature of-80 ℃ and the vacuum degree of below 30Pa to obtain the carbon-rich carbon nitride conjugated polymer solid material.
(2) Preparation of conductive glass/TiO 2 nanocrystalline mesoporous film composite electrode
And cleaning the two pieces of FTO conductive glass for standby. And respectively sintering the titanium dioxide nanocrystals on the two pieces of FTO conductive glass to obtain the two conductive glass/TiO 2 nanocrystal mesoporous film composite electrodes with the same area and thickness. The area of the titanium dioxide nanocrystalline film is 3cm multiplied by 3cm, and the thickness is 20 mu m.
(3) Assembly of all-solid-state optical super capacitor based on carbon-rich carbon nitride conjugated polymer
10Mg of carbon nitride-rich conjugated polymer was uniformly mixed with a small amount of deionized water (about 1. Mu.l) to prepare a thick slurry. And uniformly coating the slurry on the surfaces of TiO 2 on the two conductive glass/TiO 2 nanocrystalline mesoporous film composite electrodes by adopting a knife coating method. And then, coating a proper amount of sealing insulating glue on the edges of the two electrodes coated with the carbon-rich carbon-nitride conjugated polymer, and relatively compacting the electrodes, and after the insulating glue is solidified, obtaining the all-solid-state optical super capacitor based on the carbon-rich carbon-nitride conjugated polymer.
The all-solid-state light super capacitor based on the carbon-rich carbon nitride conjugated polymer manufactured through the steps can obtain 167mC cm -2 of photo-generated charge storage capacity under the irradiation of an AM1.5 simulated solar light source.
Example 2
An all-solid-state optical supercapacitor based on carbon-rich carbon nitride conjugated polymer, the manufacturing process of which comprises the following steps:
(1) Preparation of carbon-rich carbon nitride conjugated polymer
Dicyandiamide, citric acid and deionized water are mixed in a mass ratio of 1:1.9:60 to obtain a reactant. The reactants are led into a hydrothermal reaction kettle to carry out hydrothermal reaction at 200 ℃ for 3 hours, and precursors are obtained. And (3) hermetically preserving the precursor for 3 months under the room temperature condition and in an ammonia atmosphere to perform curing reaction to obtain the carbon-nitride-rich conjugated polymer aqueous solution. And freeze-drying the carbon-rich carbon nitride conjugated polymer aqueous solution at the temperature of-80 ℃ and the vacuum degree of below 30Pa to obtain the carbon-rich carbon nitride conjugated polymer solid material.
(2) Preparation of conductive glass/TiO 2 nanocrystalline mesoporous film composite electrode
And cleaning the two pieces of FTO conductive glass for standby. And respectively sintering the titanium dioxide nanocrystals on the two pieces of FTO conductive glass to obtain the two conductive glass/TiO 2 nanocrystal mesoporous film composite electrodes with the same area and thickness. The area of the titanium dioxide nanocrystalline film is 6cm multiplied by 6cm, and the thickness is 30 mu m.
(3) Assembly of all-solid-state optical super capacitor based on carbon-rich carbon nitride conjugated polymer
50Mg of carbon nitride-rich conjugated polymer was uniformly mixed with a small amount of deionized water (about 5. Mu.l) to prepare a thick slurry. And uniformly coating the slurry on the surfaces of TiO 2 on the two conductive glass/TiO 2 nanocrystalline mesoporous film composite electrodes by adopting a knife coating method. And then, coating a proper amount of sealing insulating glue on the edges of the two electrodes coated with the carbon-rich carbon-nitride conjugated polymer, and relatively compacting the electrodes, and after the insulating glue is solidified, obtaining the all-solid-state optical super capacitor based on the carbon-rich carbon-nitride conjugated polymer.
The all-solid-state light super capacitor based on the carbon-rich carbon nitride conjugated polymer manufactured through the steps can obtain the photo-generated charge storage capacity of 174mC cm -2 under the irradiation of AM1.5 simulated sunlight.
Example 3
An all-solid-state optical supercapacitor based on carbon-rich carbon nitride conjugated polymer, the manufacturing process of which comprises the following steps:
(1) Preparation of carbon-rich carbon nitride conjugated polymer
Dicyandiamide, citric acid and deionized water are mixed in a mass ratio of 1:1.9:60 to obtain a reactant. The reactants are led into a hydrothermal reaction kettle to carry out hydrothermal reaction at 200 ℃ for 3 hours, and precursors are obtained. And (3) sealing and preserving the precursor in an ammonia atmosphere at room temperature for 14 months to perform curing reaction to obtain the carbon-nitride-rich conjugated polymer aqueous solution. And freeze-drying the carbon-rich carbon nitride conjugated polymer aqueous solution at the temperature of-80 ℃ and the vacuum degree of below 30Pa to obtain the carbon-rich carbon nitride conjugated polymer solid material.
(2) Preparation of conductive glass/TiO 2 nanocrystalline mesoporous film composite electrode
And cleaning the two pieces of FTO conductive glass for standby. And respectively sintering the titanium dioxide nanocrystals on the two pieces of FTO conductive glass to obtain the two conductive glass/TiO 2 nanocrystal mesoporous film composite electrodes with the same area and thickness. The area of the titanium dioxide nanocrystalline film is 9cm multiplied by 9cm, and the thickness is 10 mu m.
(3) Assembly of all-solid-state optical super capacitor based on carbon-rich carbon nitride conjugated polymer
100Mg of carbon nitride-rich conjugated polymer was uniformly mixed with a small amount of deionized water (about 10. Mu.l) to prepare a thick slurry. And uniformly coating the slurry on the surfaces of TiO 2 on the two conductive glass/TiO 2 nanocrystalline mesoporous film composite electrodes by adopting a knife coating method. And then, coating a proper amount of sealing insulating glue on the edges of the two electrodes coated with the carbon-rich carbon-nitride conjugated polymer, and relatively compacting the electrodes, and after the insulating glue is solidified, obtaining the all-solid-state optical super capacitor based on the carbon-rich carbon-nitride conjugated polymer.
The all-solid-state light super capacitor based on the carbon-rich carbon nitride conjugated polymer manufactured by the steps can obtain 177mC cm -2 of photo-generated charge storage capacity under the irradiation of AM1.5 simulated sunlight.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present invention, which is intended to be covered by the claims of the present invention.
Claims (4)
1. The all-solid-state light super capacitor based on the carbon-rich carbon nitride conjugated polymer is characterized by comprising a first conductive glass and a second conductive glass, wherein a first titanium dioxide nanocrystalline mesoporous film is arranged on a conductive surface of the first conductive glass, a second titanium dioxide nanocrystalline mesoporous film is arranged on a conductive surface of the second conductive glass, the carbon-rich carbon nitride conjugated polymer is arranged between the first titanium dioxide nanocrystalline mesoporous film and the second titanium dioxide nanocrystalline mesoporous film, the outer sides of the first titanium dioxide nanocrystalline mesoporous film, the second titanium dioxide nanocrystalline mesoporous film and the carbon-rich carbon nitride conjugated polymer are sealed through insulating sealant, and the carbon-rich carbon nitride conjugated polymer is prepared by the following steps:
s11, mixing dicyandiamide, citric acid and deionized water according to a mass ratio of 1:1.9:60 to obtain a reactant;
S12, introducing reactants into a hydrothermal reaction kettle, and carrying out hydrothermal reaction at 200 ℃ for 3 hours to obtain a precursor;
S13, hermetically storing the precursor in an ammonia atmosphere at room temperature for 3-14 months for curing reaction to obtain an aqueous solution of the carbon-rich carbon nitride conjugated polymer;
and S14, freeze-drying the aqueous solution of the carbon-rich carbon nitride conjugated polymer at the temperature of-80 ℃ and the vacuum degree of below 30Pa to obtain the carbon-rich carbon nitride conjugated polymer solid material.
2. The preparation method of the all-solid-state optical super capacitor based on the carbon-rich carbon nitride conjugated polymer is characterized by comprising the following steps of:
S1, preparing a carbon-rich carbon nitride conjugated polymer;
s2, sintering titanium dioxide nanocrystalline mesoporous films on the conductive surfaces of the two pieces of conductive glass to obtain a conductive glass-TiO 2 nanocrystalline mesoporous film composite electrode;
S3, uniformly coating carbon-rich carbon nitride conjugated polymer on the surfaces of the titanium dioxide nanocrystalline mesoporous films of the two composite electrodes;
S4, adopting insulating sealant to relatively bond the two composite electrodes coated with the carbon-rich carbon nitride conjugated polymer together to obtain the all-solid-state light super capacitor without adopting electrolyte;
The preparation method of the carbon-rich carbon nitride conjugated polymer comprises the following steps:
s11, mixing dicyandiamide, citric acid and deionized water according to a mass ratio of 1:1.9:60 to obtain a reactant;
S12, introducing reactants into a hydrothermal reaction kettle, and carrying out hydrothermal reaction at 200 ℃ for 3 hours to obtain a precursor;
S13, hermetically storing the precursor in an ammonia atmosphere at room temperature for 3-14 months for curing reaction to obtain an aqueous solution of the carbon-rich carbon nitride conjugated polymer;
and S14, freeze-drying the aqueous solution of the carbon-rich carbon nitride conjugated polymer at the temperature of-80 ℃ and the vacuum degree of below 30Pa to obtain the carbon-rich carbon nitride conjugated polymer solid material.
3. The method for preparing the all-solid-state optical super capacitor based on the carbon-rich carbon nitride conjugated polymer, which is disclosed in claim 2, is characterized in that the area of the titanium dioxide nanocrystalline film is 3cm multiplied by 9cm, and the thickness is 10-30 μm.
4. The preparation method of the all-solid-state optical super capacitor based on the carbon-rich carbon nitride conjugated polymer, which is disclosed in claim 2, is characterized in that in the step S3, 10-100 mg of the carbon-rich carbon nitride conjugated polymer and 1-10 mu l of deionized water are uniformly mixed to prepare slurry, and the slurry is uniformly coated on the surfaces of TiO 2 on the two conductive glass-TiO 2 nanocrystalline mesoporous thin film composite electrodes by a doctor blade method.
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| CN117101722A (en) * | 2023-08-26 | 2023-11-24 | 化学与精细化工广东省实验室潮州分中心 | A polymer-carbon nitride composite powder material and its preparation method |
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| CN117101722A (en) * | 2023-08-26 | 2023-11-24 | 化学与精细化工广东省实验室潮州分中心 | A polymer-carbon nitride composite powder material and its preparation method |
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