CN108198699B - Self-supporting graphene film/polyaniline @ polyaniline composite electrode with hierarchical structure, preparation method and application - Google Patents
Self-supporting graphene film/polyaniline @ polyaniline composite electrode with hierarchical structure, preparation method and application Download PDFInfo
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- CN108198699B CN108198699B CN201711294079.3A CN201711294079A CN108198699B CN 108198699 B CN108198699 B CN 108198699B CN 201711294079 A CN201711294079 A CN 201711294079A CN 108198699 B CN108198699 B CN 108198699B
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- 229920000767 polyaniline Polymers 0.000 title claims abstract description 68
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 62
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 60
- 239000002131 composite material Substances 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000002121 nanofiber Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 15
- 239000003792 electrolyte Substances 0.000 claims abstract description 10
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 8
- 238000011065 in-situ storage Methods 0.000 claims abstract description 6
- 239000000178 monomer Substances 0.000 claims abstract description 6
- 238000003828 vacuum filtration Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 7
- 239000003990 capacitor Substances 0.000 claims description 7
- 239000008367 deionised water Substances 0.000 claims description 7
- 229910021641 deionized water Inorganic materials 0.000 claims description 7
- 238000004070 electrodeposition Methods 0.000 claims description 5
- 239000012286 potassium permanganate Substances 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- 230000003647 oxidation Effects 0.000 claims description 4
- 238000007254 oxidation reaction Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 2
- 238000004108 freeze drying Methods 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 239000002356 single layer Substances 0.000 claims 2
- 239000000126 substance Substances 0.000 claims 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims 1
- 239000007864 aqueous solution Substances 0.000 claims 1
- 229910017604 nitric acid Inorganic materials 0.000 claims 1
- 230000001590 oxidative effect Effects 0.000 claims 1
- 239000007772 electrode material Substances 0.000 abstract description 20
- 239000000463 material Substances 0.000 abstract description 4
- 239000000835 fiber Substances 0.000 abstract description 2
- 238000005234 chemical deposition Methods 0.000 abstract 1
- 230000002194 synthesizing effect Effects 0.000 abstract 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- 238000006722 reduction reaction Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 2
- 238000000840 electrochemical analysis Methods 0.000 description 2
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 2
- 229940071870 hydroiodic acid Drugs 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- MIOPJNTWMNEORI-GMSGAONNSA-N (S)-camphorsulfonic acid Chemical compound C1C[C@@]2(CS(O)(=O)=O)C(=O)C[C@@H]1C2(C)C MIOPJNTWMNEORI-GMSGAONNSA-N 0.000 description 1
- LCPVQAHEFVXVKT-UHFFFAOYSA-N 2-(2,4-difluorophenoxy)pyridin-3-amine Chemical compound NC1=CC=CN=C1OC1=CC=C(F)C=C1F LCPVQAHEFVXVKT-UHFFFAOYSA-N 0.000 description 1
- 229910021607 Silver chloride Inorganic materials 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000002484 cyclic voltammetry Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/32—Carbon-based
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
- H01G11/22—Electrodes
- H01G11/30—Electrodes characterised by their material
- H01G11/48—Conductive polymers
-
- 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)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Carbon And Carbon Compounds (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
The invention relates to a preparation method of a self-supporting graphene/polyaniline @ polyaniline flexible composite electrode material, which comprises the steps of firstly carrying out vacuum filtration on graphene oxide to form a self-supporting flexible carrier, then synthesizing polyaniline nano-fibers on the surface of the graphene oxide nano-fibers by an in-situ polymerization method, and finally growing polyaniline nano-whiskers of 40-50nm on the polyaniline fibers in an electrolyte containing aniline monomers by constant potential chemical deposition to obtain a graphene film-based hierarchical composite structure. The preparation method effectively increases the conductivity of the polyaniline nanofiber network, and simultaneously improves the wettability of the flexible composite electrode to the electrolyte, so that the composite material shows good electrochemical performance, and has good application prospect in the field of supercapacitor materials.
Description
Technical Field
the invention belongs to the field of new energy materials, and mainly relates to preparation of a self-supporting graphene film/polyaniline @ polyaniline hierarchical structure composite electrode which can be used as an electrode material of a super capacitor.
background
as a novel energy storage device, the flexible super capacitor has the advantages of high volume power density, portability, low price, safety and the like, and has very important application value in the field of wearable electronic devices in the future. However, the energy density of the flexible capacitor is still low at present, which severely restricts the commercial application of the flexible capacitor. Therefore, the development of flexible electrode materials with high specific capacity is a difficult point of current research. Therefore, a more reasonable composite electrode structure is required to be designed to break through the original electrochemical performance of the electrode material, so that the electrode material has the mechanical strength of bearing bending or folding while the performance of the electrode material is kept, and the loss of the electrochemical performance caused by stress strain is avoided.
Among a plurality of electrode materials, graphene materials with a two-dimensional structure have the characteristics of abundant specific surface area, ideal electric conductivity, high strength, excellent flexibility and the like, so that the graphene materials become an attractive choice in a self-supporting flexible matrix. Although the research on the graphene electrode material has advanced to some extent, the graphene electrode material has a serious problem of agglomeration and stacking in the preparation process, so that the actual capacity and the theoretical capacity are still far from each other and the practical commercial application is still carried out. At present, the difference between the theoretical performance and the actual performance of the graphene-based electrode material is mainly shortened by designing a reasonable structure and improving a preparation method of the electrode material.
the polyaniline has low cost, environmental friendliness, outstanding conductive property (the conductivity is 100-; the conductivity of polyaniline in different doping states is greatly different and is in three redox states of a complete reduction state, an intermediate state and a complete oxidation state respectively, wherein the two states of the complete reduction state and the complete oxidation state are conductive states and can be applied to electrode active materials; at present, the synthesis method of the polyaniline in three different states is relatively thoroughly researched and mainly related to monomer concentration, dopant species, polymerization time and the like in the synthesis process;
Disclosure of Invention
in order to overcome the defects of poor stability and low specific capacity of polyaniline conductive polymer materials in electrode materials, the invention aims to provide a method for preparing a graphene self-supporting film as a substrate and constructing a polyaniline fiber composite electrode material with a three-dimensional hierarchical structure on the surface of the graphene self-supporting film so as to overcome the performance limitation of polyaniline in the electrode materials.
The invention forms a self-supporting graphene film by a vacuum filtration method of graphene dispersion liquid, and constructs a hierarchical structure of polyaniline on the graphene film by a two-step method. The mutual connection between the polyaniline nanofibers builds a conductive network, and the formed hierarchical composite structure effectively increases the contact area between the polyaniline and the electrolyte, further optimizes the conductive network, ensures an ideal gap structure and effectively increases the ion/electron transmission rate. Therefore, the specific capacity, the energy density and the cycling stability of the obtained polyaniline/graphene composite electrode are greatly improved.
the invention is realized by the following technical routes:
A preparation method of a self-supporting graphene film/polyaniline @ polyaniline hierarchical structure composite electrode comprises the following steps:
vacuum-filtering the prepared graphene oxide by using a Hummers method to form a film, and reducing the graphene oxide film into a redox graphene film under the reduction action of hydroiodic acid;
After the obtained self-supporting film is cut into 1 multiplied by 2cm, a polyaniline nano-fiber structure is grown on the surface of the obtained graphene film by an in-situ polymerization method by using 0.1mol/L ammonium persulfate as an initiator;
And (3) immersing the obtained graphene film/polyaniline array in electrolyte containing aniline monomer by using a three-electrode system, and carrying out constant-voltage electrochemical deposition for 5-30min at a potential of 0.8V.
the concentration of aniline in the electrolyte is 0.05-0.2mol/L, and the concentration of sulfuric acid is 0.05-0.2 mol/L.
The self-supporting graphene film/polyaniline @ polyaniline composite electrode with the hierarchical structure is applied to a super capacitor.
the graphene film/polyaniline nano hierarchical structure prepared by the in-situ polymerization and electrodeposition method has the following remarkable characteristics:
1. According to the preparation route, firstly, the graphene oxide solution is subjected to vacuum filtration to form a film and then reduced, so that the problem of agglomeration of graphene in the reduction reaction process is effectively avoided, and the flexibility of the graphene is kept.
2. On the basis of the support film, polyaniline nano-fibers are assembled on the surface of the graphene film by using an in-situ polymerization method, so that the addition of an additional binder is avoided, the internal resistance of the electrode material is effectively reduced, then, polyaniline nano-whiskers grow on the polyaniline nano-fibers by using a constant-voltage electrodeposition method, a polyaniline conductive network is further perfected, and meanwhile, the proper porosity is also kept, so that the full contact between the electrode material and an electrolyte is ensured.
3. The composite electrode obtained by the invention shows excellent performance in electrochemical tests, and shows that the composite electrode has very wide application prospect in the field of electrode materials of super capacitors.
Drawings
Fig. 1 is a scanning electron microscope picture of a graphene film.
fig. 2 is a scanning electron microscope picture of the graphene film/polyaniline composite electrode.
Fig. 3 and 4 are scanning electron microscope pictures (low magnification and high magnification) of the graphene film/polyaniline @ polyaniline hierarchical structure.
Fig. 5 is a graph of electrochemical performance test of the graphene film/polyaniline in example 1.
fig. 6 is an electrochemical performance test chart of the graphene film/polyaniline @ polyaniline in example 2.
Detailed description of the invention
The present invention is further illustrated by the following examples, but the scope of the present invention is not limited to the examples. Other variations and modifications which may occur to those skilled in the art without departing from the spirit and scope of the invention are intended to be included within the scope of the invention.
First, a preparation route of the graphene film is explained: graphene oxide was prepared by a modified Hummers method. Firstly, weighing 1.0g of graphite and 1.0g of sodium nitrate, grinding uniformly, adding into a 1L beaker, slowly adding 60mL of concentrated sulfuric acid under an ice bath condition, and fully stirring; weighing 6.0g of potassium permanganate, adding the potassium permanganate into the beaker in batches within 3 hours, maintaining ice bath conditions, transferring the potassium permanganate into a 35 ℃ oil bath pot to heat and stir for more than 10 hours after the potassium permanganate is completely added, then adding 150mL of deionized water at 50-60 ℃, stirring for 2 hours, centrifuging to obtain graphene oxide precipitate, finally washing the graphene oxide precipitate to be neutral by using 5% hydrochloric acid solution and a large amount of deionized water, and freeze-drying to obtain graphene oxide powder;
Dissolving the obtained graphene oxide powder in deionized water to prepare 0.5mg/mL solution, taking 50mL of the graphene oxide solution, carrying out vacuum filtration to form a membrane, adding 20mL of hydroiodic acid (57%) at the temperature of 90 ℃, reducing for 2h, taking out, cutting into the size of 1 x 2cm, washing with deionized water and ethanol, and drying for later use.
Example 1:
Immersing the cut graphene film into 40mL of 0.1M camphorsulfonic acid solution, adding 0.6mmol of aniline monomer, fully stirring, adding 20mL of 0.1M sodium persulfate solution to initiate aniline monomer polymerization, reacting for 6 hours at room temperature, taking out a sample, washing the sample with a large amount of deionized water and ethanol, and then drying the sample in a vacuum oven at intervals to obtain a sample 1 marked as graphene/polyaniline;
Example 2:
Preparing 0.1M sulfuric acid and 0.1M aniline solution, wherein the ratio of water to ethanol is 1:1, immersing the sample 1 (graphene film/polyaniline) obtained in the above example 1 into the electrolyte, performing constant voltage electrodeposition for 10min at a voltage of 0.8V, then washing with deionized water and drying to obtain a sample 2, which is marked as graphene/polyaniline @ polyaniline.
carrying out morphology characterization on the graphene/polyaniline and graphene/polyaniline @ polyaniline composite electrode material by using a field emission scanning electron microscope (JSM-4800);
The composite electrode materials in the embodiments 1 and 2 were dried and directly used as working electrodes, 1M sodium sulfate solution was prepared as electrolyte, platinum sheet was used as counter electrode, Ag/AgCl electrode was used as reference electrode to form a three-electrode system, electrochemical tests were performed at chenhua CHI660E electrochemical workstation, and the cyclic voltammetry test voltage interval was selected to be-0.1-0.9V, and the results are shown in fig. 5 and 6. Under the scanning speed of 5mV/s, the specific capacity of graphene/polyaniline is 568.3F/g, the specific capacity of graphene/polyaniline @ polyaniline is 735.4F/g, and the specific capacities under different scanning speeds are shown in the following table:
| Current density | 5mv/s | 10mv/s | 20mv/s | 30mv/s | 50mv/s |
| Example 1 | 568.3F/g | 543.2F/g | 513.3F/g | 488.6F/g | 430.8F/g |
| Example 2 | 735.4F/g | 603.4F/g | 550.0F/g | 525.8F/g | 506.7F/g |
Claims (3)
1. a preparation method of a self-supporting graphene film/polyaniline @ polyaniline hierarchical structure composite electrode is characterized by comprising the following steps:
Utilizing a Hummers method to oxidize and peel off commercial graphite flakes into single-layer graphene through the oxidation action of nitric acid and potassium permanganate, then washing the single-layer graphene with a large amount of hydrochloric acid and deionized water, preparing a graphene aqueous solution with a certain concentration after freeze drying, and then utilizing a vacuum filtration method to obtain a self-supporting graphene film;
growing polyaniline nanofibers on the surface of the graphene film through in-situ chemical oxidative polymerization; the time of the in-situ chemical oxidation polymerization is 4-10h, and the dosage of aniline is 0.3-0.9 mmol;
A three-electrode system is adopted, a constant potential electrochemical deposition method is utilized, and the graphene film loaded with the polyaniline nanofibers is immersed in electrolyte containing aniline monomers, so that the polyaniline nanowhiskers can vertically grow on the surfaces of the polyaniline nanofibers;
the polyaniline nano-fiber uniformly and vertically grows on a graphene film to form a polyaniline nano-fiber array structure, the diameter of the polyaniline nano-fiber is 100-120nm, and the height of the polyaniline nano-fiber array is 40-50 nm; the array formed by the polyaniline nanofibers uniformly grows on the surface of the graphene film; at the same time, polyaniline nano-whiskers with the size of 40-50nm are uniformly grown on the polyaniline nano-fibers;
The concentration of sulfuric acid in the electrolyte is 0.05-0.2mol/L, and the concentration of aniline is 0.05-0.2 mol/L.
2. A self-supporting graphene film/polyaniline @ polyaniline composite electrode with a hierarchical structure is characterized by being obtained by the preparation method of claim 1.
3. The application of the self-supporting graphene film/polyaniline @ polyaniline composite electrode with the hierarchical structure as claimed in claim 2, wherein the graphene film/polyaniline @ polyaniline composite electrode with the hierarchical structure is applied to a super capacitor.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103137342A (en) * | 2013-02-06 | 2013-06-05 | 燕山大学 | Grapheme-polyaniline super capacitor electrode material and preparation method thereof |
| CN103337377A (en) * | 2013-06-14 | 2013-10-02 | 哈尔滨工业大学 | Preparation method for well-organized high-capacity self-supporting film based on epitaxial growth of polyaniline on graphene surface |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103137342A (en) * | 2013-02-06 | 2013-06-05 | 燕山大学 | Grapheme-polyaniline super capacitor electrode material and preparation method thereof |
| CN103337377A (en) * | 2013-06-14 | 2013-10-02 | 哈尔滨工业大学 | Preparation method for well-organized high-capacity self-supporting film based on epitaxial growth of polyaniline on graphene surface |
Non-Patent Citations (2)
| Title |
|---|
| Electropolymerization of Aniline Over Chenmically Converted Graphene Systematic Study and Effect of Dopant;Hassan H.K.;《International Journal of Electrochemical science》;20121101;全文 * |
| 石墨烯／聚苯胺复合材料的制备、电化学性能及机理研究;王义师;《中国优秀硕士学位论文全文数据库工程科技I辑2013年第6期》;20130615;第B020-35页 * |
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