CN111268673A - Preparation method of supercapacitor electrode material taking foamed nickel as template - Google Patents

Preparation method of supercapacitor electrode material taking foamed nickel as template Download PDF

Info

Publication number
CN111268673A
CN111268673A CN202010087235.4A CN202010087235A CN111268673A CN 111268673 A CN111268673 A CN 111268673A CN 202010087235 A CN202010087235 A CN 202010087235A CN 111268673 A CN111268673 A CN 111268673A
Authority
CN
China
Prior art keywords
carbon material
electrode material
foamed nickel
nickel sheet
supercapacitor electrode
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010087235.4A
Other languages
Chinese (zh)
Inventor
任鹏刚
侯鑫
戴忠
靳彦岭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xian University of Technology
Original Assignee
Xian University of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xian University of Technology filed Critical Xian University of Technology
Priority to CN202010087235.4A priority Critical patent/CN111268673A/en
Publication of CN111268673A publication Critical patent/CN111268673A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00Carbon; Compounds thereof
    • C01B32/20Graphite
    • C01B32/205Preparation
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00Carbon; Compounds thereof
    • C01B32/05Preparation or purification of carbon not covered by groups C01B32/15, C01B32/20, C01B32/25, C01B32/30
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/22Electrodes
    • H01G11/24Electrodes 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/22Electrodes
    • H01G11/30Electrodes characterised by their material
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/22Electrodes
    • H01G11/30Electrodes characterised by their material
    • H01G11/32Carbon-based
    • H01G11/44Raw materials therefor, e.g. resins or coal
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/13Energy storage using capacitors

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Electric Double-Layer Capacitors Or The Like (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

The invention discloses a preparation method of a supercapacitor electrode material taking foam nickel as a template, which comprises the following steps: firstly, mixing glacial acetic acid, deionized water and chitosan, and ultrasonically stirring to obtain a chitosan solution; turning over and drying the foam nickel sheet in a chitosan solution, then putting the foam nickel sheet into a tubular furnace for carbonization, then putting the foam nickel sheet into a nitric acid solution for soaking and washing to obtain a primary untreated carbon material; then the carbon material and AgNO which are not treated preliminarily are mixed3Mixing with deionized water, ultrasonic dispersing, drying, and dissolving in N2The carbonization is carried out under the atmosphere,obtaining the carbon material. In the method, chitosan is used as a carbon source, and simultaneously the chitosan can also be used as a nitrogen source to carry out nitrogen doping on the carbon material, and the specific surface area of the carbon material is improved by using foamed nickel as a template to prepare the carbon material containing a layered microstructure; the surface is coated with silver, so that the conductivity of the carbon material is improved, and the electrochemical performance of the carbon material is enhanced.

Description

Preparation method of supercapacitor electrode material taking foamed nickel as template
Technical Field
The invention belongs to the technical field of electrode material preparation, and particularly relates to a preparation method of a supercapacitor electrode material taking foamed nickel as a template.
Background
Supercapacitors, also known as electrochemical capacitors, are a new type of energy storage device between a battery and a flat capacitor. Supercapacitors have higher energy densities than conventional capacitors, and higher power densities than batteries. In addition, the super capacitor has excellent performances such as high charging and discharging speed, long service life, good safety performance, small pollution and the like, so the super capacitor becomes a novel energy storage device which is concerned all over the world.
The super capacitor can be divided into two types according to an energy storage mechanism, one type adopts electrode materials with high specific surface area, and energy is stored by forming an interface double electric layer electrostatic capacitance between an electrode and electrolyte, namely the double electric layer capacitance; the other type adopts transition metal oxide or macromolecule conducting polymer as electrode material, and the active substance is subjected to underpotential deposition on the surface of the electrode or in a two-dimensional or quasi-two-dimensional space in a bulk phase to generate rapid and reversible chemical adsorption/desorption or oxidation/reduction reaction so as to generate specific capacitance higher than the electric double layer capacitance, namely Faraday pseudo capacitance.
The carbon-based material is widely researched in the application of the super capacitor, and comprises an activated carbon material, graphene and derivatives thereof, a carbon nanotube, template carbon and the like, wherein the energy density of the super capacitor is increased by increasing the specific surface area and the porosity of the carbon-based material and doping heteroatoms. How to improve the conductivity of the carbon material so as to make the carbon material have more excellent electrochemical performance becomes a difficult problem to be solved.
Disclosure of Invention
The invention aims to provide a preparation method of a supercapacitor electrode material taking foamed nickel as a template, which solves the problem of poor electrochemical performance of the capacitor electrode material in the prior art.
The invention adopts the technical scheme that a preparation method of a supercapacitor electrode material taking foam nickel as a template is implemented according to the following steps:
step 1, mixing glacial acetic acid, deionized water and chitosan, and ultrasonically stirring for 1-4h to obtain a chitosan solution;
step 2, turning the foam nickel sheet in the chitosan solution for 10-100 times, and then drying the foam nickel sheet;
step 3, putting the foamed nickel sheet obtained in the step 2 into the chitosan solution again, turning over for 10-100 times, and drying;
step 4, putting the foam nickel sheet obtained in the step 3 into a tubular furnace for carbonization, then soaking the carbonized foam nickel sheet in a nitric acid solution for 6-12h, and finally washing the obtained material with deionized water to be neutral to obtain a primary untreated carbon material;
step 5, mixing the carbon material and AgNO which are not treated in step 43Mixing with deionized water, performing ultrasonic dispersion for 1-4h, and drying to obtain a treated carbon material;
and 6, carbonizing the carbon material treated in the step 5 to obtain the carbon material, namely the supercapacitor electrode material.
The present invention is also characterized in that,
in the step 1, the mass ratio of the glacial acetic acid to the deionized water to the chitosan is 0.5-1: 100: 1-6.
In the step 2, the thickness of the foam nickel sheet is 1-3mm, and the foam nickel sheet is a rectangular foam nickel sheet with the side length of 30-100 mm.
In the step 2 and the step 3, the drying temperature is 50-100 ℃, and the drying time is 2-6 h.
In step 4, the carbonization conditions are as follows: in N2Heating to 1000-1400 ℃ at the speed of 1-5 ℃/min in the atmosphere, preserving the heat for 60-180 min, and cooling to room temperature; n is a radical of2The flow rate of (A) is 40-60 mL/min.
In the step 5, the drying temperature is 50-100 ℃, and the drying time is 24 hours.
In step 5, the carbon material and AgNO which are not treated preliminarily3And deionized water in a mass ratio of 3-50: 1: 10 to 100.
In step 6, the strips are carbonizedThe parts are as follows: in N2Heating to 350-500 ℃ at the speed of 1-10 ℃/min in the atmosphere, preserving the heat for 60-300 min, and cooling to room temperature; n is a radical of2The flow rate of (A) is 40-60 mL/min.
The invention has the beneficial effects that:
in the method, chitosan is used as a carbon source, and simultaneously the chitosan can also be used as a nitrogen source to carry out nitrogen doping on the carbon material, and the specific surface area of the carbon material is improved by using foamed nickel as a template to prepare the carbon material containing a layered microstructure; the effect of improving the specific surface area is achieved by taking the metal Ni as the template, meanwhile, the graphitization degree of the carbon material can be improved by the metal, and the electrochemical performance of the material is further improved. In addition, the carbon material prepared by the method of the invention has the advantages that the surface is coated with silver, so that the conductivity of the carbon material is improved, and the electrochemical performance of the carbon material is enhanced.
Drawings
FIG. 1 is a Scanning Electron Microscope (SEM) image of the electrode material ANIC of the super capacitor obtained in example 1 of the present invention;
FIG. 2 is a Scanning Electron Microscope (SEM) image of the electrode material NIC of the supercapacitor obtained in the control group;
FIG. 3 is an X-ray energy spectrum (EDS) diagram of the supercapacitor electrode material obtained in example 3 of the present invention;
FIG. 4 is a constant current charge-discharge test spectrum (GCD) of the electrode material ANIC of the super capacitor obtained in example 1 of the present invention;
fig. 5 is a comparative group of supercapacitor electrode material NIC constant current charge-discharge test spectrogram (GCD);
FIG. 6 is an ANIC Electrochemical Impedance Spectroscopy (EIS) spectrum of the supercapacitor electrode material obtained in example 1 of the present invention;
fig. 7 is an Electrochemical Impedance Spectroscopy (EIS) chart of the electrode material NIC of the supercapacitor obtained from the control group.
Detailed Description
The present invention will be described in detail with reference to the following detailed description and accompanying drawings.
The invention relates to a preparation method of a supercapacitor electrode material taking foamed nickel as a template, which is implemented according to the following steps:
step 1, mixing glacial acetic acid, deionized water and chitosan, and ultrasonically stirring for 1-4h to obtain a chitosan solution;
the mass ratio of the glacial acetic acid to the deionized water to the chitosan is 0.5-1: 100: 1 to 6;
step 2, turning over the foam nickel sheet in the chitosan solution for 10-100 times, and then drying the foam nickel sheet in a forced air oven at the drying temperature of 50-100 ℃ for 2-6 h;
the thickness of the foam nickel sheet is 1-3mm, and the foam nickel sheet is a rectangular foam nickel sheet with the side length of 30-100 mm;
step 3, placing the foamed nickel sheet obtained in the step 2 into the chitosan solution again, turning the foamed nickel sheet for 10-100 times, and placing the foamed nickel sheet into a forced air oven to dry, wherein the drying temperature is 50-100 ℃, and the drying time is 2-6 hours;
step 4, putting the foam nickel sheet obtained in the step 3 into a tubular furnace for carbonization, then soaking the carbonized foam nickel sheet in a nitric acid solution for 6-12h, then carrying out suction filtration, and finally washing the obtained material with deionized water to be neutral to obtain a primary untreated carbon material;
the carbonization conditions are as follows: in N2Heating to 1000-1400 ℃ at the speed of 1-5 ℃/min in the atmosphere, preserving the heat for 60-180 min, and cooling to room temperature; n is a radical of2The flow rate of the water is 40-60 mL/min;
step 5, mixing the carbon material and AgNO which are not treated in step 43Mixing with deionized water, ultrasonically dispersing for 1-4h, and then drying in a forced air oven at 50-100 ℃ for 24h to obtain a treated carbon material;
preliminary untreated carbon material, AgNO3And deionized water in a mass ratio of 3-50: 1: 10 to 100 parts;
step 6, putting the carbon material treated in the step 5 into a tubular furnace for carbonization to obtain a carbon material, namely a super capacitor electrode material;
the carbonization conditions are as follows: in N2Heating to 350-500 ℃ at the speed of 1-10 ℃/min in the atmosphere, preserving the heat for 60-300 min, and cooling to room temperature; n is a radical of2The flow rate of (A) is 40-60 mL/min.
Example 1
First, 6 pieces of nickel foam having a length and a width of 60mm by 40mm were cut out on 3mm thick nickel foam with a blade. Weighing 1ml of glacial acetic acid solution, adding 99ml of deionized water, weighing 2g of chitosan, adding the chitosan into the solution, carrying out ultrasonic stirring for 2 hours, then pouring the chitosan solution into a culture dish, clamping the cut foam nickel sheet by using steel tweezers, repeatedly turning over the foam nickel sheet in the culture dish, drying the foam nickel sheet in a blast oven for 4 hours after the turning over is finished, then putting the dried foam nickel sheet into the culture dish containing the chitosan solution again, repeating the previous step of operation, and drying the foam nickel sheet in the blast oven for 4 hours after the turning over is finished. Transferring the dried sample into a corundum boat, then putting the corundum boat into a tube furnace, setting a temperature rise program, wherein the temperature rise speed is 5 ℃/min, the temperature is raised to 1200 ℃, the temperature is kept for 2h, nitrogen is introduced, and the nitrogen flow rate is 40 ml/min; and after carbonization, putting the product into nitric acid for soaking for 8 hours, then carrying out suction filtration, washing the suction filtration product with deionized water, and washing to be neutral. Then weighing the prepared carbon powder and AgNO3And (3) adding 15: 1, adding 50ml of deionized water, performing ultrasonic dispersion for 2 hours, then placing the mixture into a blast oven for drying for 24 hours, then transferring the dried sample into a corundum boat, then placing the corundum boat into a tubular furnace, introducing nitrogen, setting a heating program at a heating rate of 5 ℃/min and heating to 500 ℃, and keeping the temperature for 3 hours, wherein the nitrogen flow rate is 40 ml/min; cooling and taking out the product; the silver coated carbon material was named ANIC. As a control group, the carbon material without silver coating under the same experimental conditions was named NIC.
Uniformly mixing the obtained carbon material with conductive carbon black and polytetrafluoroethylene dispersion (PTFE), stirring the mixture into slurry by taking an ethanol solvent as a diluent, and mixing active substances according to the mixing ratio: conductive carbon black: PTFE 85:10: 5; uniformly coating the mud mixture on the surface of the foamed nickel under certain pressure, wherein the coating amount is about 2-3mg, and drying. And after drying, assembling two electrodes with similar loads into a sandwich structure by taking Woltmann filter paper as a diaphragm, and performing hot pressing under the pressure of 5MPa to form the supercapacitor.
Fig. 1 is an ANIC scanning electron microscope image, which shows that the surface of the carbon material is successfully coated with the nano silver particles, so that the electrochemical performance of the material is improved, and the surface of the carbon material has a certain micropore and layered structure, so that the specific surface area of the carbon material is increased, and the effect of increasing the electric double layer capacitance is achieved.
Fig. 4 and 5 show GCD curves of ANIC and NIC, respectively, both curves presenting symmetrical isosceles triangles, illustrating that ANIC electrodes have good reversibility in application. The charge-discharge time of the ANIC electrode is obviously longer than that of the NIC electrode, which shows that the AEC has higher specific capacitance by coating silver, the performance of the electrode is improved to a certain extent, and the AEC specific capacitance 76F g is obtained by calculation-148F g above EC-1
Example 2
First, 6 pieces of nickel foam having a length and a width of 40mm x 40mm were cut out on 3mm thick nickel foam with a blade. Weighing 1ml of glacial acetic acid solution, adding 99ml of deionized water, weighing 2g of chitosan, adding the chitosan into the solution, carrying out ultrasonic stirring for 3 hours, then pouring the chitosan solution into a culture dish, clamping the cut foam nickel sheet by using steel tweezers, repeatedly turning over the foam nickel sheet in the culture dish, drying the foam nickel sheet in a blast oven for 4 hours after the turning over is finished, then putting the dried foam nickel sheet into the culture dish containing the chitosan solution again, repeating the previous step of operation, and drying the foam nickel sheet in the blast oven for 4 hours after the turning over is finished. Transferring the dried sample into a corundum boat, then putting the corundum boat into a tube furnace, setting a temperature rise program, wherein the temperature rise speed is 5 ℃/min, the temperature is raised to 1200 ℃, the temperature is kept for 2h, nitrogen is introduced, and the nitrogen flow rate is 40 ml/min; and after carbonization, putting the product into nitric acid for soaking for 8 hours, then carrying out suction filtration, washing the suction filtration product with deionized water, and washing to be neutral. Then weighing the prepared carbon powder, and adding no AgNO3Adding 50ml of deionized water, placing the mixture into a blast oven for drying for 24 hours, transferring the dried sample into a corundum boat, placing the corundum boat into a tube furnace, introducing nitrogen at the nitrogen flow rate of 40ml/min, setting a temperature rise program, wherein the temperature rise speed is 5 ℃/min, raising the temperature to 500 ℃, and preserving the temperature for 3 hours; the product was taken out after cooling. As a control group, the carbon material without silver coating under the same experimental conditions was named NIC.
Uniformly mixing the obtained carbon material with conductive carbon black and polytetrafluoroethylene dispersion (PTFE), stirring the mixture into slurry by taking an ethanol solvent as a diluent, and mixing active substances according to the mixing ratio: conductive carbon black: and (3) uniformly coating the pasty mixture on the surface of the foamed nickel under certain pressure, wherein the coating amount is about 2-3mg, and drying. And after drying, assembling two electrodes with similar loads into a sandwich structure by taking Woltmann filter paper as a diaphragm, and performing hot pressing under the pressure of 5MPa to form the supercapacitor.
It can be seen from fig. 2 that the carbon material has many micropores distributed over the surface, indicating that the obtained carbon material successfully has a similar structure by using the nickel foam as a template, thereby increasing the electrochemical performance of the material.
Fig. 6 and 7 are ac impedance diagrams of two electrodes fabricated, and in a high frequency region, the intercept of the diagrams on the x axis is called equivalent resistance, including electrolyte resistance, active material, substrate internal resistance, and contact resistance of the active material and a current collector. Meanwhile, the ion transfer capability of the electrode material can be clearly observed through the slope of the image, and the larger the slope is, the larger the ion transfer capability is. The equivalent resistance of ANIC is about 0.3 omega and is less than the equivalent resistance of NIC 2.3 omega, which shows that ANIC has better ion transfer capability. Meanwhile, due to the appearance of a small semicircle image of a high-frequency area caused by the formation of a double electric layer of the electrode and the electrolyte, the diameter of the small semicircle represents the transfer resistance of electrons, and the fact that the diameter of the semicircle of the ANIC is obviously smaller than that of the NIC can be observed, which indicates that the electron transfer resistance of the ANIC is smaller and is more favorable for the rapid passing of the electrons.
Example 3
This example compares to example 2: 2g of chitosan, AgNO mixed with carbon powder3The mass ratio of the carbon powder to the mass increase of (1) is 5:1, the other points are the same as in example 1. Fig. 3 is an EDS diagram of the carbon material, from which the structure of the carbon material surface coated with silver can be seen, and it is obvious that silver and the carbon material are well combined, thereby achieving the purpose of improving the electrochemical performance.

Claims (8)

1. A preparation method of a supercapacitor electrode material taking foamed nickel as a template is characterized by comprising the following steps:
step 1, mixing glacial acetic acid, deionized water and chitosan, and ultrasonically stirring for 1-4h to obtain a chitosan solution;
step 2, turning the foam nickel sheet in the chitosan solution for 10-100 times, and then drying the foam nickel sheet;
step 3, putting the foamed nickel sheet obtained in the step 2 into the chitosan solution again, turning over for 10-100 times, and drying;
step 4, putting the foam nickel sheet obtained in the step 3 into a tubular furnace for carbonization, then soaking the carbonized foam nickel sheet in a nitric acid solution for 6-12h, and finally washing the obtained material with deionized water to be neutral to obtain a primary untreated carbon material;
step 5, mixing the carbon material and AgNO which are not treated in step 43Mixing with deionized water, performing ultrasonic dispersion for 1-4h, and drying to obtain a treated carbon material;
and 6, carbonizing the carbon material treated in the step 5 to obtain the carbon material, namely the supercapacitor electrode material.
2. The method for preparing the supercapacitor electrode material taking the foamed nickel as the template according to claim 1, wherein in the step 1, the mass ratio of the glacial acetic acid to the deionized water to the chitosan is 0.5-1: 100: 1-6.
3. The method for preparing the supercapacitor electrode material taking the foamed nickel as the template in the step 2, wherein the thickness of the foamed nickel sheet is 1-3mm, and the foamed nickel sheet is a rectangular foamed nickel sheet with the side length of 30-100 mm.
4. The method for preparing the supercapacitor electrode material taking the foamed nickel as the template according to claim 1, wherein in the step 2 and the step 3, the drying temperature is 50-100 ℃, and the drying time is 2-6 h.
5. The method for preparing the supercapacitor electrode material taking the foamed nickel as the template according to the claim 1, wherein in the step 4, the carbonization conditions are as follows: in N2In the atmosphereRaising the temperature to 1000-1400 ℃ at the speed of 1-5 ℃/min, preserving the temperature for 60-180 min, and cooling to room temperature; n is a radical of2The flow rate of (A) is 40-60 mL/min.
6. The preparation method of the supercapacitor electrode material taking the foamed nickel as the template according to claim 1, wherein in the step 5, the drying temperature is 50-100 ℃ and the drying time is 24 hours.
7. The method for preparing the supercapacitor electrode material taking the foam nickel as the template according to claim 1, wherein in the step 5, the carbon material and AgNO which are not processed preliminarily are adopted3And deionized water in a mass ratio of 3-50: 1: 10 to 100.
8. The method for preparing the supercapacitor electrode material taking the foamed nickel as the template according to the claim 1, wherein in the step 6, the carbonization conditions are as follows: in N2Heating to 350-500 ℃ at the speed of 1-10 ℃/min in the atmosphere, preserving the heat for 60-300 min, and cooling to room temperature; n is a radical of2The flow rate of (A) is 40-60 mL/min.
CN202010087235.4A 2020-02-11 2020-02-11 Preparation method of supercapacitor electrode material taking foamed nickel as template Pending CN111268673A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010087235.4A CN111268673A (en) 2020-02-11 2020-02-11 Preparation method of supercapacitor electrode material taking foamed nickel as template

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010087235.4A CN111268673A (en) 2020-02-11 2020-02-11 Preparation method of supercapacitor electrode material taking foamed nickel as template

Publications (1)

Publication Number Publication Date
CN111268673A true CN111268673A (en) 2020-06-12

Family

ID=70993785

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010087235.4A Pending CN111268673A (en) 2020-02-11 2020-02-11 Preparation method of supercapacitor electrode material taking foamed nickel as template

Country Status (1)

Country Link
CN (1) CN111268673A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113955751A (en) * 2021-11-09 2022-01-21 重庆科技学院 Self-supporting porous dendritic graphite foam, preparation method and application

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104036973A (en) * 2014-06-24 2014-09-10 福州大学 Nitrogen-rich foam carbon electrode material for super capacitor and preparing method of nitrogen-rich foam carbon electrode material
WO2018001206A1 (en) * 2016-06-27 2018-01-04 济南圣泉集团股份有限公司 Graphene-based hierarchical porous capacitive carbon and preparation method therefor, and capacitor
CN109888222A (en) * 2019-02-26 2019-06-14 淮安新能源材料技术研究院 A kind of N doping porous carbon and preparation method thereof of silver nano-grain package
CN110015660A (en) * 2018-11-19 2019-07-16 华南理工大学 A kind of porous carbon nanosheet of Ag doping lignin and preparation method thereof and the application in electrode material for super capacitor
CN110085441A (en) * 2019-04-28 2019-08-02 江苏理工学院 A kind of Cu-Ag/ carbon nano-fiber composite material and its preparation method and application
CN110176364A (en) * 2019-05-21 2019-08-27 同济大学 A method of high nitrogen doped micropore-mesopore carbon material is prepared using chitosan
CN110551435A (en) * 2019-07-26 2019-12-10 罗苗苗 preparation method of composite carbon-based electric heating coating

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104036973A (en) * 2014-06-24 2014-09-10 福州大学 Nitrogen-rich foam carbon electrode material for super capacitor and preparing method of nitrogen-rich foam carbon electrode material
WO2018001206A1 (en) * 2016-06-27 2018-01-04 济南圣泉集团股份有限公司 Graphene-based hierarchical porous capacitive carbon and preparation method therefor, and capacitor
CN110015660A (en) * 2018-11-19 2019-07-16 华南理工大学 A kind of porous carbon nanosheet of Ag doping lignin and preparation method thereof and the application in electrode material for super capacitor
CN109888222A (en) * 2019-02-26 2019-06-14 淮安新能源材料技术研究院 A kind of N doping porous carbon and preparation method thereof of silver nano-grain package
CN110085441A (en) * 2019-04-28 2019-08-02 江苏理工学院 A kind of Cu-Ag/ carbon nano-fiber composite material and its preparation method and application
CN110176364A (en) * 2019-05-21 2019-08-27 同济大学 A method of high nitrogen doped micropore-mesopore carbon material is prepared using chitosan
CN110551435A (en) * 2019-07-26 2019-12-10 罗苗苗 preparation method of composite carbon-based electric heating coating

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
HASSAN, S ET AL.: "Synthesis of MnO2-chitosan nanocomposite by one-step electrodeposition for electrochemical energy storage application", 《JOURNAL OF POWER SOURCES》, vol. 246, 14 July 2013 (2013-07-14), pages 68 - 73, XP028739879, DOI: 10.1016/j.jpowsour.2013.06.085 *
PATIL, DS ET AL.: "Polyaniline based electrodes for electrochemical supercapacitor: Synergistic effect of silver, activated carbon and polyaniline", 《JOURNAL OF ELECTROANALYTICAL CHEMISTRY》, vol. 724, 24 April 2014 (2014-04-24), pages 21 - 28, XP028849626, DOI: 10.1016/j.jelechem.2014.04.006 *
刘宏芳等编: "《交叉学科研究生高水平课程系列教材 纳米材料化学与器件》", 31 July 2019, 华中科技大学出版社, pages: 89 *
翟学成等: "抗菌型载银壳层结构球粒活性炭", 《福州大学学报(自然科学版)》, vol. 42, no. 2, 30 April 2014 (2014-04-30), pages 313 - 316 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113955751A (en) * 2021-11-09 2022-01-21 重庆科技学院 Self-supporting porous dendritic graphite foam, preparation method and application
CN113955751B (en) * 2021-11-09 2023-12-22 重庆科技学院 Self-supporting porous dendritic graphite foam, preparation method and application

Similar Documents

Publication Publication Date Title
Liu et al. Ultrafine nickel–cobalt alloy nanoparticles incorporated into three-dimensional porous graphitic carbon as an electrode material for supercapacitors
CN108630920A (en) A kind of nano-metal-oxide/MXene heterojunction structure composite material and preparation methods
CN102923698A (en) Preparation method for three-dimensional porous graphene for supercapacitor
CN110479340B (en) Nano cobalt/nitrogen doped graphene composite material and preparation method thereof
CN108831759B (en) Graphene/chitosan porous carbon composite material and preparation method and application thereof
CN111883371B (en) Flexible self-supporting electrode of supercapacitor and preparation method and application thereof
Pu et al. Hydrothermal synthesis of N-doped graphene/Fe2O3 nanocomposite for supercapacitors
CN109449012B (en) Preparation method of foamed nickel-loaded nano carbon material aerogel composite electrode material
CN109003827B (en) Preparation method and application of spongy graphene/nickel-cobalt sulfide composite material
CN112786869B (en) Preparation method of ferric oxide/spiral carbon nanofiber composite anode material
CN112794310B (en) Potassium ion battery anode material and preparation method and application thereof
Li et al. In situ electrochemical rapid growth NiCo-LDH as a high-performance electrode material for all-solid-state flexible hybrid supercapacitors
CN111268673A (en) Preparation method of supercapacitor electrode material taking foamed nickel as template
CN109360739B (en) Preparation method of nickel/nickel oxide loaded carbon nanofiber electrode material
TWI434453B (en) Modification of artificial graphite as a lithium battery anode material preparation method
Chakrabarti et al. Scaling to practical pouch cell supercapacitor: Electrodes by electrophoretic deposition
CN113903601A (en) Preparation method and application of net-shaped ZIF-67 derivative/graphene composite electrode material
CN113838677A (en) N-doped porous carbon composite hollow NiCo2O4Preparation and application of electrode material
Wu et al. Nickel cobaltite nanoflakes grown around nickel foam-supported expanded mesocarbon microbeads for battery-like electrochemical capacitors
CN111341567A (en) 3D poplar catkin derived carbon-supported NiCo-LDH nanosheet supercapacitor and preparation method thereof
CN114597377B (en) Silicon-carbon composite anode material, anode and lithium secondary battery
CN112017871B (en) Composite electrode material and preparation method and application thereof
CN111223684B (en) Preparation method of coffee-grounds-based supercapacitor electrode material
CN113380556B (en) Nano flaky conductive agent
TWI772686B (en) Preparation method of silicon/reduced wrinkled graphene oxide/carbon composite anode material and its application in energy storage system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20200612