CN107026029A - A kind of graphene oxide doped Co anderson heteropoly acids prepare the method and its application of super capacitor material - Google Patents

A kind of graphene oxide doped Co anderson heteropoly acids prepare the method and its application of super capacitor material Download PDF

Info

Publication number
CN107026029A
CN107026029A CN201710332725.4A CN201710332725A CN107026029A CN 107026029 A CN107026029 A CN 107026029A CN 201710332725 A CN201710332725 A CN 201710332725A CN 107026029 A CN107026029 A CN 107026029A
Authority
CN
China
Prior art keywords
graphene
graphene oxide
super capacitor
anderson
capacitor material
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
CN201710332725.4A
Other languages
Chinese (zh)
Inventor
卢德力
张小杰
林静静
韩生
翟永彦
余焓
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.)
Shanghai Institute of Technology
Original Assignee
Shanghai Institute 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 Shanghai Institute of Technology filed Critical Shanghai Institute of Technology
Priority to CN201710332725.4A priority Critical patent/CN107026029A/en
Publication of CN107026029A publication Critical patent/CN107026029A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H01G11/84Processes for the manufacture of hybrid or EDL capacitors, or components thereof
    • H01G11/86Processes for the manufacture of hybrid or EDL capacitors, or components thereof specially adapted for electrodes
    • 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
    • H01G11/36Nanostructures, e.g. nanofibres, nanotubes or fullerenes
    • 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)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Nanotechnology (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Electric Double-Layer Capacitors Or The Like (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

The present invention relates to super capacitor material field, the method that specifically a kind of graphene oxide doped Co anderson heteropoly acids prepare super capacitor material comprises the following steps:Co anderson heteropoly acids are taken to dissolve in the solution of graphene oxide, solution is stirred evenly using ultrasonic wave, mixed solution is put into pyroreaction kettle, reaction obtains graphene post, further take out graphene post, remove the ion dissociated in graphene, dry graphene, graphene, carbon black and polytetrafluoroethylene (PTFE) are pressed 8:1:1 ratio grinding, that is, be made super capacitor material;The present invention is compared with the existing technology, its easy control of reaction conditions, preparation process is relatively simple, obtained product quality stability is fine, be conducive to industrialized production, improve the chemical property of the grapheme material of ultracapacitor in itself and simplify its preparation technology, improve the chemical property of grapheme material.

Description

A kind of graphene oxide doped Co-anderson heteropoly acids prepare super capacitor equipment The method and its application of material
[technical field]
The present invention relates to super capacitor material field, specifically a kind of graphene oxide doped Co-anderson Heteropoly acid prepares the method and its application of super capacitor material.
[background technology]
Ultracapacitor is also known as electrochemical capacitor, double layer capacitor, by realizing positive and negative charge point on interface From carrying out energy storage.It is a kind of electrochemical element, and irreversible chemical reaction does not occur for its thermal energy storage process, therefore with outstanding Cyclical stability;Its energy storage occur on interface, by diffusion limit smaller, therefore have higher energy density.From Since the patent for the Section 1 ultracapacitor that nineteen fifty-seven declares, ultracapacitor is constantly weeded out the old and bring forth the new, at present not only technology day Crescent is different, and application is also more and more extensive.
Graphene is found so far, in scientific research and industrial circle developing new direction.Graphene is most thin two-dimentional material Material, with high intensity, great specific surface area and high conductance.It is super that graphene as these advantages possesses preparation The ability of level capacitor, and capacitor performance can be greatly improved.At present, new material is paid attention in the research for improving capacitor performance Material synthesis, and applied to the preparation of capacitor, energy storage and the energy density of ultracapacitor are improved with this.
Polyacid compound huge number, can be divided into heteropoly acid and the major class of isopolyacid two according to hetero atom is whether there is in its composition. Heteropoly acid has various structure and composition, and wherein anderson types heteropoly acid has good redox ability.Therefore, if Co-anderson heteropoly acids can be introduced during redox graphene, the ability by means of its charge and discharge electronics improves super electricity Container energy storage, raising charge/discharge rates and cyclical stability, will have very important significance.
[content of the invention]
Present invention aim to solve above-mentioned deficiency and to provide a kind of graphene oxide doped Co-anderson miscellaneous The method that polyacid prepares super capacitor material, improves the grapheme material of ultracapacitor chemical property in itself and letter Change its preparation technology, and easy control of reaction conditions, preparation process is relatively simple, obtained product quality stability very well, has Beneficial to industrialized production.
A kind of graphene oxide doped Co-anderson heteropoly acids are designed to achieve the above object prepares super capacitor equipment The method of material, comprises the following steps:1) Co-anderson heteropoly acids are taken to dissolve in graphene oxide solution, in temperature 10-45 DEG C, ultrasonic mixing is uniform under power 100-200W, frequency 15-20Hz;2) mixed solution is put into pyroreaction kettle, HTHP 12h is reacted, redox graphene obtains graphene post;3) take out step 2) obtained by graphene post, soaked with deionized water 48h, removes the ion dissociated in graphene, dries graphene;4) graphene, carbon black and polytetrafluoroethylene (PTFE) are pressed 8:1:1 ratio Example grinding, that is, be made super capacitor material.
Further, step 1) in, appropriate graphene oxide solution is first taken, deionized water is added, ultrasound dissipates oxidation stone Black alkene, prepares 4g/L graphene oxide solution, then takes Co-anderson heteropoly acids to dissolve in the graphene oxide solution, should The concentration of heteropoly acid is 0.1-0.8mol/L, and ultrasound stirs evenly 30-40min.
Further, step 1) in, the structure of the Co-anderson heteropoly acids adulterated is Anderson crystal formations.
Further, step 2) in, the temperature control of high-temperature high-voltage reaction is and every in the temperature rise period at 100-260 DEG C Minute heating is no more than 10 DEG C.
Further, step 3) in, graphene post is washed with deionized more than 2 times.
Further, step 3) in, graphene is dried by the way of drying, the temperature control of drying is at 60-80 DEG C.
Further, step 3) in, graphene is dried by the way of lyophilized, lyophilized time control is in more than 48h.
Present invention also offers a kind of super capacitor material obtained using above-mentioned preparation method in ultracapacitor The application of middle aspect.
The super capacitor material have improve ultracapacitor chemical property, the chemical property include than Electric capacity, cyclical stability and charge/discharge rates.
The present invention is compared with the existing technology, sharp by taking Co-anderson heteropoly acids to dissolve in the solution of graphene oxide Solution is stirred evenly with ultrasonic wave, mixed solution is put into pyroreaction kettle, reaction obtains graphene post, further takes out graphene post, go Fall the ion dissociated in graphene, dry graphene, graphene, carbon black and polytetrafluoroethylene (PTFE) are pressed 8:1:1 ratio grinding, from And super capacitor material is prepared, its easy control of reaction conditions, preparation process is relatively simple, obtained product quality stability Very well, be conducive to industrialized production, improve the chemical property of the grapheme material of ultracapacitor in itself and simplify its system Standby technique, improves the chemical property of grapheme material, is worthy of popularization.
[brief description of the drawings]
Fig. 1 is the IR Characterization figure of Co-anderson heteropoly acids of the present invention;
Fig. 2 is graphene oxide doped Co-anderson heteropoly acids capacitor (1 of the present invention:0.05) SEM figures;
Fig. 3 is graphene oxide doped Co-anderson heteropoly acids capacitor (1 of the present invention:0.1) SEM figures;
Fig. 4 is graphene oxide doped Co-anderson heteropoly acids capacitor (1 of the present invention:0.2) SEM figures;
Fig. 5 is the charge and discharge electrograph of super capacitor material in the embodiment of the present invention 2.
[embodiment]
The invention provides the side that a kind of graphene oxide doped Co-anderson heteropoly acids prepare super capacitor material Method, comprises the following steps:1) Co-anderson heteropoly acids are taken to dissolve in graphene oxide solution, in 10-45 DEG C of temperature, power Ultrasonic mixing is uniform under 100-200W, frequency 15-20Hz;2) mixed solution is put into pyroreaction kettle, high-temperature high-voltage reaction 12h, redox graphene obtains graphene post;3) take out step 2) obtained by graphene post, with deionized water soak 48h, Remove the ion dissociated in graphene, dry graphene;4) graphene, carbon black and polytetrafluoroethylene (PTFE) are pressed 8:1:1 ratio is ground Mill, that is, be made super capacitor material.Wherein, step 1) in, appropriate graphene oxide solution is first taken, deionized water is added, surpassed Sound dissipates graphene oxide, prepares 4g/L graphene oxide solution, then take Co-anderson heteropoly acids to dissolve in the graphite oxide In alkene solution, the concentration of the heteropoly acid is 0.1-0.8mol/L, and ultrasound stirs evenly 30-40min, it is ensured that Dispersion of Solute Matter is uniform;Mixed The structure of miscellaneous Co-anderson heteropoly acids is Anderson crystal formations, and the Co-anderson heteropoly acids that adulterate are to improve super The performance of capacitor.Step 2) in, the temperature control of high-temperature high-voltage reaction is and per minute in the temperature rise period at 100-260 DEG C Heating is no more than 10 DEG C.Step 3) in, graphene post is washed with deionized more than 2 times, more than 48h is soaked, and dry stone The mode of black alkene post is not limited;Mode according to drying dries graphene, and the temperature control of drying is at 60-80 DEG C;According to jelly Dry mode dries graphene, then lyophilized time control is in more than 48h.
Present invention also offers a kind of super capacitor material obtained using above-mentioned preparation method in ultracapacitor The application of middle aspect, the super capacitor material has the chemical property for improving ultracapacitor, such as specific capacitance, stable circulation Property and charge/discharge rates.
Technical scheme is further described with reference to specific embodiment, but the invention is not restricted to following Embodiment.
Embodiment 1
15ml graphene oxide solutions are taken, 85ml deionized waters are added, ultrasound is put into 30 minutes and dissipates graphene oxide.Claim Co-anderson heteropoly acid 0.05g are taken, above-mentioned 25mL graphene oxide solution is dissolved in.Solution is in 10-45 DEG C of temperature, power Ultrasound stirs evenly 30-40min under 100-200W, frequency 15-20Hz, it is ensured that Dispersion of Solute Matter is uniform;Mixed solution is put into high temperature anti- Kettle is answered, high-temperature high-voltage reaction 12h is carried out at 180 DEG C, reaction obtains graphene post;Graphene post is taken out, is soaked with deionized water 48h is steeped, removes the ion dissociated in graphene, drying or lyophilized graphene;Graphene, carbon black and polytetrafluoroethylene (PTFE) are pressed 8: 1:1 ratio grinding, prepares super capacitor material.
Embodiment 2
15ml graphene oxide solutions are taken, 85ml deionized waters are added, ultrasound is put into 30 minutes and dissipates graphene oxide.Claim Co-anderson heteropoly acid 0.1g are taken, above-mentioned 25mL graphene oxide solution is dissolved in.Solution is in 10-45 DEG C of temperature, power Ultrasound stirs evenly 30-40min under 100-200W, frequency 15-20Hz, it is ensured that Dispersion of Solute Matter is uniform;Mixed solution is put into high temperature anti- Kettle is answered, high-temperature high-voltage reaction 12h is carried out at 180 DEG C, reaction obtains graphene post;Graphene post is taken out, is soaked with deionized water 48h is steeped, removes the ion dissociated in graphene, drying or lyophilized graphene;Graphene, carbon black and polytetrafluoroethylene (PTFE) are pressed 8: 1:1 ratio grinding, prepares super capacitor material.Drawn a conclusion through charge-discharge test, the specific capacitance of the material reaches 1285C/g, such as Fig. 5.
Embodiment 3
15ml graphene oxide solutions are taken, 85ml deionized waters are added, ultrasound is put into 30 minutes and dissipates graphene oxide.Claim Co-anderson heteropoly acid 0.2g are taken, above-mentioned 25mL graphene oxide solution is dissolved in.Solution is in 10-45 DEG C of temperature, power Ultrasound stirs evenly 30-40min under 100-200W, frequency 15-20Hz, it is ensured that Dispersion of Solute Matter is uniform;Mixed solution is put into high temperature anti- Kettle is answered, high-temperature high-voltage reaction 12h is carried out at 260 DEG C, reaction obtains graphene post;Graphene post is taken out, is soaked with deionized water 48h is steeped, removes the ion dissociated in graphene, drying or lyophilized graphene;Graphene, carbon black and polytetrafluoroethylene (PTFE) are pressed 8: 1:1 ratio grinding, prepares super capacitor material.
Embodiment 4
15ml graphene oxide solutions are taken, 85ml deionized waters are added, ultrasound is put into 30 minutes and dissipates graphene oxide.Claim Co-anderson heteropoly acid 0.2g are taken, above-mentioned 25mL graphene oxide solution is dissolved in.Solution is in 10-45 DEG C of temperature, power Ultrasound stirs evenly 30-40min under 100-200W, frequency 15-20Hz, it is ensured that Dispersion of Solute Matter is uniform;Mixed solution is put into high temperature anti- Kettle is answered, high-temperature high-voltage reaction 12h is carried out at 100 DEG C, reaction obtains graphene post;Graphene post is taken out, is soaked with deionized water 48h is steeped, removes the ion dissociated in graphene, drying or lyophilized graphene;Graphene, carbon black and polytetrafluoroethylene (PTFE) are pressed 8: 1:1 ratio grinding, prepares super capacitor material.
In summary, the graphene super capacitor material of a kind of Co-anderson heteropoly acids doping of the present invention, Among the above embodiments, observe obtained super capacitor material and be uniformly dispersed, and capacitor high rate performance is improved A lot, its specific capacitance has reached 1285C/g, and course of reaction is simple, and preparation condition is easily controlled, it is easy to operated, can Realize industrialized production.
The present invention is simultaneously not limited to the embodiments described above limitation, other any Spirit Essences and principle without departing from the present invention Lower made change, modification, replacement, combination, simplification, should be equivalent substitute mode, be included in the protection model of the present invention Within enclosing.

Claims (9)

1. a kind of method that graphene oxide doped Co-anderson heteropoly acids prepare super capacitor material, it is characterised in that Comprise the following steps:
1) Co-anderson heteropoly acids are taken to dissolve in graphene oxide solution, in 10-45 DEG C of temperature, power 100-200W, frequency Ultrasonic mixing is uniform under 15-20Hz;
2) mixed solution is put into pyroreaction kettle, high-temperature high-voltage reaction 12h, redox graphene obtains graphene post;
3) take out step 2) obtained by graphene post, with deionized water soak 48h, remove in graphene dissociate ion, dry Graphene;
4) graphene, carbon black and polytetrafluoroethylene (PTFE) are pressed 8:1:1 ratio grinding, that is, be made super capacitor material.
2. the method as described in claim 1, it is characterised in that:Step 1) in, appropriate graphene oxide solution is first taken, addition is gone Ionized water, ultrasound dissipates graphene oxide, prepares 4g/L graphene oxide solution, then take Co-anderson heteropoly acids to dissolve in In the graphene oxide solution, the concentration of the heteropoly acid is 0.1-0.8mol/L, and ultrasound stirs evenly 30-40min.
3. the method as described in claim 1, it is characterised in that:Step 1) in, the knot of the Co-anderson heteropoly acids adulterated Structure is Anderson crystal formations.
4. the method as described in claim 1, it is characterised in that:Step 2) in, the temperature control of high-temperature high-voltage reaction is in 100- 260 DEG C, and in the temperature rise period, heating per minute is no more than 10 DEG C.
5. the method as described in claim 1, it is characterised in that:Step 3) in, by graphene post be washed with deionized 2 times with On.
6. the method as described in claim 1, it is characterised in that:Step 3) in, graphene is dried by the way of drying, is dried Temperature control at 60-80 DEG C.
7. the method as described in claim 1, it is characterised in that:Step 3) in, graphene is dried by the way of lyophilized, is freezed Time control in more than 48h.
8. a kind of graphene oxide doped Co-anderson heteropoly acids as any one of claim 1 to 7 prepare super The application of the super capacitor material that the method for capacitor material is obtained aspect in ultracapacitor.
9. application as claimed in claim 8, it is characterised in that:The super capacitor material, which has, improves ultracapacitor Chemical property, the chemical property includes specific capacitance, cyclical stability and charge/discharge rates.
CN201710332725.4A 2017-05-12 2017-05-12 A kind of graphene oxide doped Co anderson heteropoly acids prepare the method and its application of super capacitor material Pending CN107026029A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710332725.4A CN107026029A (en) 2017-05-12 2017-05-12 A kind of graphene oxide doped Co anderson heteropoly acids prepare the method and its application of super capacitor material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710332725.4A CN107026029A (en) 2017-05-12 2017-05-12 A kind of graphene oxide doped Co anderson heteropoly acids prepare the method and its application of super capacitor material

Publications (1)

Publication Number Publication Date
CN107026029A true CN107026029A (en) 2017-08-08

Family

ID=59529152

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710332725.4A Pending CN107026029A (en) 2017-05-12 2017-05-12 A kind of graphene oxide doped Co anderson heteropoly acids prepare the method and its application of super capacitor material

Country Status (1)

Country Link
CN (1) CN107026029A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107578924A (en) * 2017-09-07 2018-01-12 上海应用技术大学 A kind of electrode material for super capacitor based on graphene-supported Cr Anderson heteropoly acids and preparation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102745676A (en) * 2012-07-05 2012-10-24 吉林大学 Method for preparing graphene and polyoxometalate composite through electrochemical reduction
CN103913492A (en) * 2014-03-26 2014-07-09 青岛大学 Keggin type heteropoly acid-polypyrrole-graphene composite material modified electrode as well as preparation method and application thereof
CN105097290A (en) * 2015-07-02 2015-11-25 华南师范大学 Method for preparing candle carbon-doped metal compound electrode active material on current collector and application of candle carbon in preparation of electrode active material
CN105870430A (en) * 2016-06-20 2016-08-17 扬州大学 Method for preparing three-dimensional graphene-phosphotungstate
CN106449128A (en) * 2016-09-28 2017-02-22 东南大学 Integrated heteropolyacid-modified polyaniline/titanium nitride core-shell nanowire array composite material and preparation method and application thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102745676A (en) * 2012-07-05 2012-10-24 吉林大学 Method for preparing graphene and polyoxometalate composite through electrochemical reduction
CN103913492A (en) * 2014-03-26 2014-07-09 青岛大学 Keggin type heteropoly acid-polypyrrole-graphene composite material modified electrode as well as preparation method and application thereof
CN105097290A (en) * 2015-07-02 2015-11-25 华南师范大学 Method for preparing candle carbon-doped metal compound electrode active material on current collector and application of candle carbon in preparation of electrode active material
CN105870430A (en) * 2016-06-20 2016-08-17 扬州大学 Method for preparing three-dimensional graphene-phosphotungstate
CN106449128A (en) * 2016-09-28 2017-02-22 东南大学 Integrated heteropolyacid-modified polyaniline/titanium nitride core-shell nanowire array composite material and preparation method and application thereof

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CHEMPUBSOC: "Covalent Attachment of Anderson-Type Polyoxometalates to Single-Walled Carbon Nanotubes Gives Enhanced Performance Electrodes for Lithium Ion Batteries", 《CHEMPUBSOC》 *
徐学勤等: "Anderson结构杂多配合物的研究进展", 《化学通报》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107578924A (en) * 2017-09-07 2018-01-12 上海应用技术大学 A kind of electrode material for super capacitor based on graphene-supported Cr Anderson heteropoly acids and preparation method thereof

Similar Documents

Publication Publication Date Title
CN105118688B (en) A kind of preparation method and applications of bacteria cellulose/activated carbon fiber/graphene film material
CN105175761B (en) A kind of preparation method and applications of bacteria cellulose/polyaniline/graphene film material
CN105140042B (en) A kind of preparation method and applications of bacteria cellulose/activated carbon fiber/CNT membrane material
CN107055532B (en) A kind of absorbent charcoal composite material and preparation method thereof loading graphene
CN105355450B (en) A kind of preparation method and applications of nitrogen-doped carbon fiber/nitrogen-doped graphene/bacteria cellulose membrane material
CN106430186A (en) Preparation method and application of sweet potato leaf based active carbon
CN108109853A (en) The preparation method and application of superelevation specific surface porous carbon biomass electrode material
CN106683905A (en) Preparation method of porous nanometer trinickel disulfide film electrode
CN106145101B (en) A kind of bigger serface nitrogen-doped graphene and preparation method thereof
CN106745529A (en) A kind of TiO2Class electricity Fenton work negative electrode of electro-catalysis activated hydrogen peroxide and preparation method and application
CN107230560A (en) A kind of method that microwave radiation prepares titanium dioxide/stratiform carbon composite
CN108183243A (en) A kind of microbiological fuel cell magnetic three-dimensional gel ball anode material and preparation method
CN105405675B (en) A kind of Ag/Co (OH)2Nano-array film electrode material for super capacitor and preparation method thereof
CN108950736A (en) Nanoporous carbon fiber and preparation method thereof
CN106971855A (en) A kind of nickel ferrite based magnetic loaded nanoparticle electrode material and preparation method and purposes
CN108172420A (en) Nano carbon balls fiber hybrid aerogel electrode material for super capacitor and its preparation method and application
CN106915741A (en) The preparation method of improved graphene oxide
CN108910880A (en) Porous laminated absorbent charcoal material and preparation method thereof for supercapacitor
CN105321726A (en) High-magnification active carbon and active graphene composite electrode material and preparation method thereof
CN108219453B (en) A kind of preparation method of three-dimensional porous grapheme/polyaniline composite material
CN106169378A (en) A kind of Co3o4@Entermorpha porous carbon fiber surpasses the preparation method holding electrode material
CN105836855A (en) Preparation method and application of graphene gas diffusion electrode
CN107026029A (en) A kind of graphene oxide doped Co anderson heteropoly acids prepare the method and its application of super capacitor material
CN110033955A (en) A kind of preparation method based on graphene building nickel cobalt mine binary composite
CN106206072B (en) The method that maize straw prepares activated carbon/Platinum Nanoparticles/polyaniline composite material

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: 20170808