CN112331488A - Method for preparing flexible supercapacitor based on MXene and cotton fabric composite material - Google Patents
Method for preparing flexible supercapacitor based on MXene and cotton fabric composite material Download PDFInfo
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- 239000004744 fabric Substances 0.000 title claims abstract description 81
- 229920000742 Cotton Polymers 0.000 title claims abstract description 78
- 239000002131 composite material Substances 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- 238000002791 soaking Methods 0.000 claims abstract description 11
- 239000011248 coating agent Substances 0.000 claims abstract description 10
- 238000000576 coating method Methods 0.000 claims abstract description 10
- 239000011245 gel electrolyte Substances 0.000 claims abstract description 10
- 238000001035 drying Methods 0.000 claims abstract description 8
- 238000009990 desizing Methods 0.000 claims abstract description 7
- 238000010521 absorption reaction Methods 0.000 claims abstract description 4
- 238000011049 filling Methods 0.000 claims abstract description 4
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 239000000243 solution Substances 0.000 claims description 20
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 239000003990 capacitor Substances 0.000 claims description 17
- 239000000725 suspension Substances 0.000 claims description 14
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 12
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000002360 preparation method Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- 229910009819 Ti3C2 Inorganic materials 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- PQXKHYXIUOZZFA-UHFFFAOYSA-M lithium fluoride Chemical compound [Li+].[F-] PQXKHYXIUOZZFA-UHFFFAOYSA-M 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical compound OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 claims description 4
- 239000002135 nanosheet Substances 0.000 claims description 4
- -1 polyethylene terephthalate Polymers 0.000 claims description 4
- 238000007790 scraping Methods 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 239000011259 mixed solution Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 239000006228 supernatant Substances 0.000 claims description 3
- 238000001291 vacuum drying Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 239000003792 electrolyte Substances 0.000 abstract description 7
- 239000007772 electrode material Substances 0.000 abstract description 4
- 238000004146 energy storage Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000005530 etching Methods 0.000 description 4
- 239000003575 carbonaceous material Substances 0.000 description 3
- 238000003763 carbonization Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical group N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000001000 micrograph Methods 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 238000006479 redox reaction Methods 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000003775 Density Functional Theory Methods 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 229910052757 nitrogen Chemical group 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/84—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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
The invention discloses a method for preparing a flexible supercapacitor based on an MXene and cotton fabric composite material, which comprises the following steps: 1) desizing the cotton fabric to remove impurities on the surface of the cotton fabric and enhance the moisture absorption performance of the cotton fabric; 2) soaking cotton fabrics in MXene colloidal solution, and performing filling treatment by using a press roller to obtain an MXene/cotton fabric composite material with uniform soaking; 3) placing the MXene/cotton fabric composite material into a tubular furnace for heat treatment to obtain a carbonized MXene/cotton fabric electrode; 4) and coating the two carbonized MXene/cotton fabric electrodes in a gel electrolyte in parallel and drying to obtain the flexible supercapacitor. The invention takes MXene/cotton fabric composite material as electrode material and H3PO3The PVA gel is an all-solid-state flexible supercapacitor prepared from electrolyte, and has high specific capacitance and stable charge-discharge cycle performance.
Description
Technical Field
The invention relates to the field of capacitor preparation processes, in particular to a method for preparing a flexible supercapacitor based on an MXene and cotton fabric composite material.
Background
In recent years, with global warming and rapid reduction of petroleum and coal resources, environmental protection, advanced and stable energy systems become the current research hotspots. The super capacitor has irreplaceable functions in the aspect of energy storage due to the advantages of high energy density, high volume capacitance, long cycle times and the like. Supercapacitors are generally classified into electric double layer capacitors and pseudocapacitive capacitors according to the capacitive reaction mechanism. The energy storage mechanism of the double-layer capacitor is that the large specific surface area of the carbon material is used as a load, and the interface of an electrode and an electrolyte absorbs/desorbs counter ions under the action of electrochemical polarity so as to achieve the effects of energy storage and energy release. The multifunctional carbon material has the advantages of good conductivity, high chemical stability, good cycle performance and the like, but has lower energy density, and greatly limits the energy storage capacity of the carbon material. The energy storage mechanism of the pseudo-capacitor is that the electrode material contains active sites capable of generating oxidation reduction, and rapid and reversible oxidation reduction reaction is generated on the surfaces of the electrode and the electrolyte to achieve the effects of energy storage and energy release. Can provide higher energy density than a double-capacitor, and attracts people's attention.
Disclosure of Invention
The invention aims to provide a method for preparing a flexible supercapacitor based on an MXene and cotton fabric composite material aiming at the defects in the prior art, so as to solve the problems in the prior art.
The technical problem solved by the invention can be realized by adopting the following technical scheme:
a method for preparing a flexible supercapacitor based on an MXene and cotton fabric composite material comprises the following steps:
1) desizing the cotton fabric to remove impurities on the surface of the cotton fabric and enhance the moisture absorption performance of the cotton fabric;
2) soaking cotton fabrics in MXene colloidal solution, and performing filling treatment by using a press roller to obtain an MXene/cotton fabric composite material with uniform soaking;
3) placing the MXene/cotton fabric composite material into a tubular furnace for heat treatment to obtain a carbonized MXene/cotton fabric electrode;
4) and coating the two carbonized MXene/cotton fabric electrodes in a gel electrolyte in parallel and drying to obtain the flexible supercapacitor.
Further, the desizing treatment process of the cotton fabric is as follows:
preparing a 5% NaOH solution, heating to boil, putting the cotton fabric into the NaOH solution, keeping the temperature for 30 minutes, and then cleaning with clear water to remove the slurry on the surface of the cotton fabric.
Further, the preparation process of the MXene/cotton fabric composite material is as follows:
1) preparation of MXene suspension
Mixing 1 g of Ti3AlC3Slowly adding the mixture into a mixed solution containing 20ml of hydrochloric acid and lithium fluoride, stirring for 45 hours at 40 ℃, then washing the acid suspension with deionized water for 5-8 times, and centrifuging at 8000rpm until the pH is 6; finally, the powder was sonicated in water for 6 hours and centrifuged at 3500rpm for 5 minutes to yield stable dark green Ti3C2Tx supernatant;
2) soaked cotton fabric
Soaking the desized cotton fabric into MXene turbid liquid fully, then performing squeezing by two closely contacted press rollers, removing redundant MXene turbid liquid by squeezing, uniformly coating MXene nanosheets on the surface of the fabric, and performing vacuum drying to obtain an MXene/cotton fabric composite material;
furthermore, the concentration gradient difference of the MXene suspension is 2-14%.
Further, the MXene/cotton fabric composite material is put into a tube furnace for heat treatment at the temperature of 1200 ℃.
Further, the preparation process of the step 5) is as follows:
firstly, 3g of PVA powder is added into 30g of water, and the mixture is continuously magnetically stirred for 6 hours at the temperature of 90 ℃ until the solution is clear; then will beThe clear solution is put into the normal temperature environment, and 1Mol/L H is slowly added inwards3PO3Stirring the solution for 10min to obtain H3PO3PVA gel electrolyte; then H is introduced3PO3The PVA gel electrolyte is placed on a PET plate, a first working electrode is placed on the PET plate, H3PO3/PVA gel is uniformly coated on the working electrode by scraping, and the working electrode is dried for 1 hour at normal temperature in a vacuum oven; symmetrically placing a second working electrode, uniformly coating H3PO3/PVA gel by scraping, and drying for 1H at normal temperature in a vacuum oven; and finally, packaging the super capacitor by using a PET (polyethylene terephthalate) plate to obtain the all-solid-state flexible super capacitor.
Drawings
FIG. 1 is a schematic diagram of the preparation of carbonized MXene/cotton fabric.
FIG. 2 is a scanning electron microscope image of impregnated MXene/cotton fabric.
FIG. 3 is a scanning electron microscope image of carbonized MXene/cotton fabric.
Fig. 4 is a CV graph of the composite material under the same MXene content and different carbonization temperatures.
Fig. 5 is a CV graph of different MXene contents at the same carbonization temperature.
Fig. 6 is a summary chart of specific capacitance of different charring temperatures and different MXene contents.
Fig. 7 is a CV graph of the electrode under the optimal process at different scanning rates.
Fig. 8 is a schematic diagram of 10000 charge-discharge cycles of the capacitor under the optimal process.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Referring to fig. 1 to 4, the method for preparing the flexible supercapacitor based on the MXene and cotton fabric composite material comprises the following steps:
1) desizing the cotton fabric to remove impurities on the surface of the cotton fabric and enhance the moisture absorption performance of the cotton fabric;
2) soaking cotton fabrics in MXene colloidal solution, and performing filling treatment by using a press roller to obtain an MXene/cotton fabric composite material with uniform soaking;
3) placing the MXene/cotton fabric composite material into a tubular furnace for heat treatment to obtain a carbonized MXene/cotton fabric electrode;
4) and coating the two carbonized MXene/cotton fabric electrodes in a gel electrolyte in parallel and drying to obtain the flexible supercapacitor.
The desizing treatment process of the cotton fabric is as follows:
preparing a 5% NaOH solution, heating to boil, putting the cotton fabric into the NaOH solution, keeping the temperature for 30 minutes, and then cleaning with clear water to remove the slurry on the surface of the cotton fabric.
The preparation process of the MXene/cotton fabric composite material is as follows:
1) preparation of MXene suspension
Mixing 1 g of Ti3AlC3Slowly adding the mixture into a mixed solution containing 20ml of hydrochloric acid and lithium fluoride, stirring for 45 hours at 40 ℃, then washing the acid suspension with deionized water for 5-8 times, and centrifuging at 8000rpm until the pH is 6; finally, the powder was sonicated in water for 6 hours and centrifuged at 3500rpm for 5 minutes to yield stable dark green Ti3C2Tx supernatant;
2) soaked cotton fabric
Soaking the desized cotton fabric into MXene turbid liquid fully, then performing squeezing by two closely contacted press rollers, removing redundant MXene turbid liquid by squeezing, uniformly coating MXene nanosheets on the surface of the fabric, and performing vacuum drying to obtain an MXene/cotton fabric composite material;
in the embodiment, the MXene nanosheets are combined to the cotton fabric in an impregnation mode, the structure of the MXene/cotton fabric composite material is adjusted by controlling the concentration of the MXene suspension, and the most stable electrochemical performance of the electrode is achieved by selecting the concentration gradient difference of the MXene suspension from 2% to 14%.
In this example, the MXene/cotton fabric composite was placed in a tube furnace for heat treatment at 1200 ℃. The experimental result proves that the higher the heat treatment temperature is, the lower the resistance of the carbonized composite material is, and the larger the specific capacitance is, so that the carbonized composite material is more suitable for being used as an electrode material of a capacitor of a super capacitor, and therefore, the heat treatment temperature is selected to be 1200 ℃.
The preparation process of the step 5) is as follows:
firstly, 3g of PVA powder is added into 30g of water, and the mixture is continuously magnetically stirred for 6 hours at the temperature of 90 ℃ until the solution is clear; then the clear solution is put into the normal temperature environment, and 1Mol/L H is slowly added inwards3PO3Stirring the solution for 10min to obtain H3PO3PVA gel electrolyte; then H is introduced3PO3The PVA gel electrolyte is placed on a PET plate, a first working electrode is placed on the PET plate, and H is evenly coated on the working electrode3PO3Drying PVA gel for 1h in a vacuum oven at normal temperature; symmetrically placing a second working electrode, and uniformly coating H3PO3Drying PVA gel for 1h in a vacuum oven at normal temperature; and finally, packaging the super capacitor by using a PET (polyethylene terephthalate) plate to obtain the all-solid-state flexible super capacitor.
The MXene suspension in the invention is obtained by selective etching of MAX precursor, and the general formula of the MXene suspension is Mn +1XnTx (n is 1-3), wherein M represents early transition metal (such as Sc, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo and the like), X represents carbon or nitrogen element, and Tx represents surface termination (such as hydroxyl, oxygen or fluorine). The chemical strength of M-A is more active than that of M-X, and the A element can be selectively etched in the etching solution containing fluorine ions. After the element A is etched, the residual M end is exposed in the etching solution and combined with free ions to form-OH, -O, -F terminals, and finally MXene suspension is formed.
Referring to fig. 5 to 8, the MXene suspension of the present invention is Ti3C2TXIt is made of Ti3ALC2Selectively etching Al element as precursor to obtain Ti3C2TX。Ti3C2TXIn the electrolyte, the surface functional groups of the electrolyte generate bonding/debonding activities among the electrolytes to generate reversible redox reactions, thereby presenting pseudocapacitance characteristics. The density functional theory and experiment prove that the chemical properties of MXene are mainly shown in the tableThe surface termination determines that the electrochemical performance of MXene is significantly enhanced after high temperature annealing because annealing reduces the number of surface-F groups. High levels of-O-terminated surfaces and low levels of-OH and-F-terminated surfaces indicate a better suitability for use in supercapacitors because such structures can provide higher capacity.
The method realizes the good combination of the cotton fabric and the MXene simply and conveniently by an impregnation method, and the carbonization process can ensure that the cotton fabric can be used as an excellent matrix material of the super capacitor, and simultaneously can also remove a proper amount of-OH and-F groups on the surface of the MXene, thereby being beneficial to improving the capacitance of the MXene.
The invention takes MXene/cotton fabric composite material as electrode material and H3PO3The PVA gel is an all-solid-state flexible supercapacitor prepared from electrolyte, and has high specific capacitance and stable charge-discharge cycle performance.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A method for preparing a flexible supercapacitor based on MXene and cotton fabric composite materials is characterized by comprising the following steps:
1) desizing the cotton fabric to remove impurities on the surface of the cotton fabric and enhance the moisture absorption performance of the cotton fabric;
2) soaking cotton fabrics in MXene colloidal solution, and performing filling treatment by using a press roller to obtain an MXene/cotton fabric composite material with uniform soaking;
3) placing the MXene/cotton fabric composite material into a tubular furnace for heat treatment to obtain a carbonized MXene/cotton fabric electrode;
4) and coating the two carbonized MXene/cotton fabric electrodes in a gel electrolyte in parallel and drying to obtain the flexible supercapacitor.
2. The method for preparing a flexible supercapacitor based on an MXene and cotton fabric composite material according to claim 1, wherein the desizing process of the cotton fabric is as follows:
preparing a 5% NaOH solution, heating to boil, putting the cotton fabric into the NaOH solution, keeping the temperature for 30 minutes, and then cleaning with clear water to remove the slurry on the surface of the cotton fabric.
3. The method for preparing the flexible supercapacitor based on the MXene and cotton fabric composite material according to claim 1, wherein the MXene/cotton fabric composite material is prepared by the following process:
1) preparation of MXene suspension
Mixing 1 g of Ti3AlC3Slowly adding the mixture into a mixed solution containing 20ml of hydrochloric acid and lithium fluoride, stirring for 45 hours at 40 ℃, then washing the acid suspension with deionized water for 5-8 times, and centrifuging at 8000rpm until the pH is 6; finally, the powder was sonicated in water for 6 hours and centrifuged at 3500rpm for 5 minutes to yield stable dark green Ti3C2Tx supernatant;
2) soaked cotton fabric
Soaking the desized cotton fabric into MXene turbid liquid fully, then performing squeezing by two closely contacted press rollers, removing redundant MXene turbid liquid by squeezing, uniformly coating MXene nanosheets on the surface of the fabric, and performing vacuum drying to obtain the MXene/cotton fabric composite material.
4. The method for preparing the flexible supercapacitor based on the MXene and cotton fabric composite material according to claim 3, wherein the concentration gradient difference of the MXene suspension is 2% -14%.
5. The method for preparing the flexible supercapacitor based on the MXene and cotton fabric composite material according to claim 1, wherein the MXene/cotton fabric composite material is put into a tube furnace for heat treatment at a temperature of 1200 ℃.
6. The method for preparing the flexible supercapacitor based on the MXene and cotton fabric composite material according to claim 1, wherein the preparation process of the step 5) is as follows:
firstly, 3g of PVA powder is added into 30g of water, and the mixture is continuously magnetically stirred for 6 hours at the temperature of 90 ℃ until the solution is clear; then the clear solution is put into the normal temperature environment, and 1Mol/L H is slowly added inwards3PO3Stirring the solution for 10min to obtain H3PO3PVA gel electrolyte; then H is introduced3PO3The PVA gel electrolyte is placed on a PET plate, a first working electrode is placed on the PET plate, H3PO3/PVA gel is uniformly coated on the working electrode by scraping, and the working electrode is dried for 1 hour at normal temperature in a vacuum oven; symmetrically placing a second working electrode, uniformly coating H3PO3/PVA gel by scraping, and drying for 1H at normal temperature in a vacuum oven; and finally, packaging the super capacitor by using a PET (polyethylene terephthalate) plate to obtain the all-solid-state flexible super capacitor.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115701463A (en) * | 2021-08-02 | 2023-02-10 | 安徽璜峪电磁技术有限公司 | Composite material constructed by multilevel structure and preparation method and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106350997A (en) * | 2016-08-08 | 2017-01-25 | 青岛大学 | Preparation method of manganese dioxide/graphene composite carbided cotton fabric |
| CN108630448A (en) * | 2018-05-04 | 2018-10-09 | 东华大学 | A kind of stable flexible fabric shape ultracapacitor and its preparation and application |
| CN109003836A (en) * | 2018-08-13 | 2018-12-14 | 湖北汽车工业学院 | A kind of preparation method based on MXene flexible fabric electrode and its application in supercapacitor |
| CN110085445A (en) * | 2019-05-23 | 2019-08-02 | 南京邮电大学 | A kind of flexible super capacitor and preparation method thereof |
| CN110726496A (en) * | 2019-10-11 | 2020-01-24 | 东华大学 | MXene coated textile force-sensitive sensor and preparation method thereof |
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- 2020-07-24 CN CN202010723785.0A patent/CN112331488A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106350997A (en) * | 2016-08-08 | 2017-01-25 | 青岛大学 | Preparation method of manganese dioxide/graphene composite carbided cotton fabric |
| CN108630448A (en) * | 2018-05-04 | 2018-10-09 | 东华大学 | A kind of stable flexible fabric shape ultracapacitor and its preparation and application |
| CN109003836A (en) * | 2018-08-13 | 2018-12-14 | 湖北汽车工业学院 | A kind of preparation method based on MXene flexible fabric electrode and its application in supercapacitor |
| CN110085445A (en) * | 2019-05-23 | 2019-08-02 | 南京邮电大学 | A kind of flexible super capacitor and preparation method thereof |
| CN110726496A (en) * | 2019-10-11 | 2020-01-24 | 东华大学 | MXene coated textile force-sensitive sensor and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115701463A (en) * | 2021-08-02 | 2023-02-10 | 安徽璜峪电磁技术有限公司 | Composite material constructed by multilevel structure and preparation method and application thereof |
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