CN107180945A - Preparation and its performance of the single-walled carbon nanotube with graphene microchip nanometer combined electrode - Google Patents
Preparation and its performance of the single-walled carbon nanotube with graphene microchip nanometer combined electrode Download PDFInfo
- Publication number
- CN107180945A CN107180945A CN201710511240.1A CN201710511240A CN107180945A CN 107180945 A CN107180945 A CN 107180945A CN 201710511240 A CN201710511240 A CN 201710511240A CN 107180945 A CN107180945 A CN 107180945A
- Authority
- CN
- China
- Prior art keywords
- carbon nanotube
- walled carbon
- graphene
- graphene microchip
- preparation
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M2004/021—Physical characteristics, e.g. porosity, surface area
-
- 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
- Y02E60/10—Energy storage using batteries
Abstract
The present invention is mutually to be combined the different structure of same element, on the graphene that three-dimensional CNT is laid in two dimension, forms the bigger three-dimensional structure of specific surface area.First by single-walled carbon nanotube（SWCNTs）Carry out acidification, single-walled carbon nanotube is avoided to occur agglomeration, it is sufficiently mixed with appropriate graphene microchip in absolute ethyl alcohol again, add dispersant, binding agent mixing, agitated ultrasound obtains stablizing solution, finally pass through spin coating, the process, the electrode prepared such as magnetization and heat treatment on matrix.The invention provides the thought and method that the different structure of same element be combined with each other, it is intended under the conditions of magnetized by CNT straight uniform, be regularly arranged in graphene microchip.Preparation technology is simple, can manufacture, the electrode specific surface area made is big, it is to avoid occurring in transmitting procedure for carrier is compound, and along the direction of CNT, carrier spread speed faster, with good electrode performance.
Description
Technical field
The invention belongs to the electrode field in battery, the structure-structure for being related to a kind of SWCNTs and graphene microchip is multiple
The thought of conjunction and the preparation method of composite Nano electrode.
Background technology
Electrode is an important part in battery.With the development of science and technology, the species of battery is more and more, the field of application
Also it is more and more extensive.In order that the performance of battery becomes more superior, people continue to optimize each part of battery, enable battery
Multiple utilization is enough reached, charging is fast, and power consumption is slow, the advantages of electric energy savings amount is big, provide and more comfortably, easily give birth to for us
It is living.
Graphene is a kind of single layer of carbon atom material of two-dimensional structure, and conductive energy is good, specific surface area is big and environment
A series of advantages such as close friend.Graphene self-discovery has just won extensive concern, be one kind by carbon atom with sp2Hybridized orbit group
It is in the flat film of honeycomb lattice, the two-dimensional material of only one of which carbon atom thickness into hexangle type.Graphene be in the world most it is thin but
It is also most hard nano material, thermal conductivity factor is up to 5300 W/mK, higher than CNT and diamond, its electricity under normal temperature
Transport factor is more than 15000 cm2/ Vs, but it is higher than CNT or silicon crystal, and resistivity about 10-6Ω cm, compare copper
Or silver is lower.Graphene is adapted to manufacture transparent touch screen, even tabula rasa, solar cell.
CNT can regard that graphene sheet layer curling is formed as, therefore can be divided into according to the number of plies of graphene film：It is single
Wall carbon nano tube（SWCNTs）And multi-walled carbon nanotube（MWCNTs）, multi-walled pipes are when initially forming, between layers very
Easily become Trapping Centers and capture various defects, thus be generally covered with the defect of duck eye sample on the tube wall of multi-walled pipes.With many walls
Pipe is compared, and the distribution of single-walled pipe diameter is small, and defect is few, with higher uniformity consistency.CNT is used as one
Dimension nano material, lightweight, hexagonal structure connection is perfect, with many abnormal mechanics, electricity and chemical property.In recent years
With going deep into for CNT and nano materials research, its wide application prospect is also constantly shown.
Therefore, it is proposed to which graphene is combined with SWCNTs, the thinking of structure-structure composite is formed, makes SWCNTs orderly
Regular is emitted on graphene synusia, and along SWCNTs direction, forms uniform and stable electric current.
The content of the invention
A kind of big, the high conduction performance it is an object of the invention to provide specific surface area, carrier transport is stable, being capable of batch
The SWCNTs of production and the nano combined electrode of graphene microchip.The single-walled carbon nanotube that the present invention is provided is received with graphene microchip
The preparation method of rice combination electrode, carries out acidification, and pass through vacuum with deionized water dilution by single armed CNT first
Suction filtration machine suction filtration, until PH stops obtaining the SWCNTs of acidification after suction filtration, drying when being 7.Then appropriate SWCNTs is taken
It is dissolved in absolute ethyl alcohol, is mixed with dispersant, adhesive with graphene, finally passes through spin coating and heat treatment etc. on matrix
Process, that is, obtain electrode.The present invention is proposed by the different structure of same element mutually compound thought, by face structure and body
Structure is mutually combined, and forms specific surface area greatly, and regular compound between structure and structure, carrier transport speed is fast, prepares
Technique is simple, Stability Analysis of Structures, is adapted to mass production.
In order to realize the purpose of foregoing invention, the present invention is achieved using following technical scheme：
The preparation method of single-walled carbon nanotube and graphene microchip nanometer combined electrode, it comprises the following steps：
（1）By SWCNTs in dense H2SO4With dense HNO3（Volume ratio is 6-1:1）Middle ultrasonic vibration 1h, the SWCNTs is with mixing
The volume ratio 1 of acid:10-100；With deionized water dilution by being filtered by vacuum machine suction filtration, until PH stops suction filtration when being 7, dry
The SWCNTs of acidification is obtained afterwards；
（2）According to mass ratio it is 1 by the SWCNTs in step (1) and graphene：1-30 ratio is added in absolute ethyl alcohol,
And add appropriate OP emulsifying agents and do dispersant, ethyl cellulose is to be obtained after binding agent prepares aaerosol solution, ultrasonic vibration 1h
Stablizing solution；
（3）The aaerosol solution prepared is deposited in substrate, uniform SWCNTs membrane electrodes are made after drying；
（4）After good membrane electrode to be prepared is dried, the glass basis for scribbling film is put into Muffle furnace and is heat-treated 2 h, is obtained
To single-walled carbon nanotube and graphene microchip nanometer combined electrode.
Further, in the step (2) SWCNTs and the mass ratio of absolute ethyl alcohol is 1:8-36.
Further, the OP emulsifying agents in the step (2) are 5-15 phr in the consumption of absolute ethyl alcohol medium size.
Further, the ethanol solution concentration of the ethyl cellulose in the step (2) is 0.5-3g/ml.
Further, the coating method in the step (3) is one kind of spin-coating method, knife coating and silk screen print method.
Further, the matrix in the step (3) is one kind in glass, ceramics and metal.
Further, the heat treatment temperature in the step (4) is 200-800 DEG C.
Embodiment
Single-walled carbon nanotube described in the present embodiment comprises the following steps with graphene microchip nanometer combined electrode method：
1st, by the dense H of 30 ml2SO4With the dense HNO of 10 ml3Mixing, the h of ultrasonic vibration 1 in mixed solution is added to by 2 g SWCNTs
Afterwards, until PH stops suction filtration when being 7, dried after 8 h, obtained at 70 DEG C by being filtered by vacuum machine suction filtration with deionized water dilution
To the SWCNTs of acidification；
2nd, the mg of SWCNTs 20 and 40 mg graphene microchips of acidification is taken to be added in 20 ml absolute ethyl alcohol, ultrasound shake
0.5 h is swung, the OP emulsifying agents for adding 1.4 ml do dispersant, continue the h of ultrasonic vibration 0.5, adding 0.2 g ethyl celluloses is
Binding agent obtains stablizing solution after preparing aaerosol solution, ultrasonic vibration 1h；
3rd, by spin-coating method, by above-mentioned solution, uniformly coating on the glass substrate, treats that it dries, 2h is sintered at 400 DEG C, most
Single-walled carbon nanotube and graphene microchip nanometer combined electrode needed for obtaining eventually.
Claims (6)
1. the preparation method of single-walled carbon nanotube and graphene microchip composite Nano electrode, it is characterised in that it includes following step
Suddenly：
(1) by a certain amount of single-walled carbon nanotube in dense H2SO4With dense HNO3（Volume ratio is 6-1:1）After middle ultrasonic vibration 1h,
With deionized water dilution by being filtered by vacuum machine suction filtration, until PH stops obtaining the single wall of acidification after suction filtration, drying when being 7
CNT;
(2) mg of single-walled carbon nanotube 20 after acidifying, and a certain amount of nano-graphene is taken to be added in absolute ethyl alcohol, and
Appropriate OP emulsifying agents are added as dispersant, ethyl cellulose is prepared as binding agent and obtained after aaerosol solution, ultrasonic vibration 1h
To stablizing solution;
(3) by spin-coating method, by above-mentioned solution, uniformly coating on the glass substrate, is dried, and sintering obtains uniform single wall
CNT and graphene microchip nanometer combined electrode.
2. the preparation method of the single-walled carbon nanotube and graphene microchip composite nano materials according to claims 1,
Characterized in that, the single-walled carbon nanotube in the step (1) is 6-1 in volume ratio:1 dense H2SO4With dense HNO3It is middle to carry out acid
Change is handled.
3. the preparation method of the single-walled carbon nanotube and graphene microchip composite nano materials according to claims 1,
Characterized in that, the mass ratio of the SWCNTs and graphene in the step (1) are 1：1-30.
4. the preparation method of the SWCNTs and graphene microchip composite nano materials according to claims 1, its feature
It is, the mass ratio of SWCNTs and absolute ethyl alcohol in the step (1) are 1:8-36.
5. the preparation method of the SWCNTs and graphene microchip composite nano materials according to claims 1, its feature
It is, the OP emulsifying agents in the step (1) are 5-15 phr in the consumption of absolute ethyl alcohol medium size.
6. the preparation method of the SWCNTs and graphene microchip composite nano materials according to claims 1, its feature
It is, the ethanol solution concentration of the ethyl cellulose in the step (1) is 0.5-3g/ml.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710511240.1A CN107180945A (en) | 2017-06-29 | 2017-06-29 | Preparation and its performance of the single-walled carbon nanotube with graphene microchip nanometer combined electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710511240.1A CN107180945A (en) | 2017-06-29 | 2017-06-29 | Preparation and its performance of the single-walled carbon nanotube with graphene microchip nanometer combined electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107180945A true CN107180945A (en) | 2017-09-19 |
Family
ID=59844560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710511240.1A Pending CN107180945A (en) | 2017-06-29 | 2017-06-29 | Preparation and its performance of the single-walled carbon nanotube with graphene microchip nanometer combined electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107180945A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108091878A (en) * | 2017-12-05 | 2018-05-29 | 四川华昆能源有限责任公司 | A kind of preparation method of lithium-sulfur cell graphene carbon nanotube composite conducting skeleton |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103108923A (en) * | 2010-07-12 | 2013-05-15 | 韩华石油化学株式会社 | Conductive coating composition and method for manufacturing a conductive layer using same |
-
2017
- 2017-06-29 CN CN201710511240.1A patent/CN107180945A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103108923A (en) * | 2010-07-12 | 2013-05-15 | 韩华石油化学株式会社 | Conductive coating composition and method for manufacturing a conductive layer using same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108091878A (en) * | 2017-12-05 | 2018-05-29 | 四川华昆能源有限责任公司 | A kind of preparation method of lithium-sulfur cell graphene carbon nanotube composite conducting skeleton |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zhao et al. | A review of studies using graphenes in energy conversion, energy storage and heat transfer development | |
| Hu et al. | MXene-coated silk-derived carbon cloth toward flexible electrode for supercapacitor application | |
| Li et al. | High performance solid-state flexible supercapacitor based on Fe 3 O 4/carbon nanotube/polyaniline ternary films | |
| CN104319372B (en) | Convenient method for preparing binder-free stannic oxide/carbon fibrofelt for negative pole of high-performance lithium ion battery | |
| CN105098160B (en) | The hollow porous carbon of a kind of doped graphene/silicon nanofiber lithium cell cathode material and preparation method thereof | |
| Sharifi et al. | based devices for energy applications | |
| Niu et al. | Electrophoretic Build‐Up of Alternately Multilayered Films and Micropatterns Based on Graphene Sheets and Nanoparticles and their Applications in Flexible Supercapacitors | |
| CN103935994B (en) | A kind of self-supporting redox graphene paper and preparation method thereof | |
| US8722442B2 (en) | Nitrogen-doped transparent graphene film and manufacturing method thereof | |
| Liu et al. | High performance all-carbon thin film supercapacitors | |
| CN103787328A (en) | Modified grapheme preparation method | |
| Wang et al. | Layered g-C3N4@ reduced graphene oxide composites as anodes with improved rate performance for lithium-ion batteries | |
| CN106025242B (en) | Lithium ion battery silicon alloy nano wire composite negative pole material and preparation method thereof | |
| US20140166496A1 (en) | Method for producing shaped graphene sheets | |
| CN105967172B (en) | A kind of preparation method of the foldable graphene film of large area | |
| Xu et al. | Effective design of MnO2 nanoparticles embedded in laser-induced graphene as shape-controllable electrodes for flexible planar microsupercapacitors | |
| CN104777197B (en) | A kind of molybdenum oxide nanobelt/graphene composite material and its application in terms of hydrogen sensitive element is prepared | |
| CN105220214B (en) | A kind of preparation method of graphene film | |
| Jiang et al. | Robust and durable flexible micro-supercapacitors enabled by graphene nanoscrolls | |
| CN104927073A (en) | Self-assembly preparation method of gas-liquid interface of silver nanowire/graphene polymer composite film | |
| CN106783210B (en) | The preparation method of the hollow super electric material of nucleocapsid ZnCo2O4-RGO flexibilities | |
| CN109181654A (en) | A kind of graphene-based composite heat conduction film and preparation method thereof and its application | |
| CN108461299A (en) | The preparation method of flexible carbon foam@nickel Al bimetal layered oxide@graphene combination electrode materials | |
| Li et al. | Self‐healing microsupercapacitors with size‐dependent 2D MXene | |
| CN109904415A (en) | A kind of nano-silicon-graphene aerogel is composite porous and preparation method thereof |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170919 |