CN108417409B - A kind of preparation method of titanium dioxide electrode material for super capacitor - Google Patents
A kind of preparation method of titanium dioxide electrode material for super capacitor Download PDFInfo
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 239000003990 capacitor Substances 0.000 title claims abstract description 26
- 239000007772 electrode material Substances 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- 239000004408 titanium dioxide Substances 0.000 title claims abstract description 18
- 239000000243 solution Substances 0.000 claims abstract description 53
- 239000002253 acid Substances 0.000 claims abstract description 40
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 29
- 239000002131 composite material Substances 0.000 claims abstract description 27
- 229910003002 lithium salt Inorganic materials 0.000 claims abstract description 26
- 159000000002 lithium salts Chemical class 0.000 claims abstract description 26
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 24
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 18
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 16
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000011259 mixed solution Substances 0.000 claims abstract description 8
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910017604 nitric acid Inorganic materials 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims abstract description 7
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims abstract description 5
- 239000007787 solid Substances 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000007540 photo-reduction reaction Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 2
- 239000012153 distilled water Substances 0.000 claims description 2
- 150000002739 metals Chemical class 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000006479 redox reaction Methods 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 241001062009 Indigofera Species 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- 230000002195 synergetic effect Effects 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 5
- 229910002804 graphite Inorganic materials 0.000 description 5
- 239000010439 graphite Substances 0.000 description 5
- 229920000128 polypyrrole Polymers 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 229920001940 conductive polymer Polymers 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 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
- 239000003575 carbonaceous material Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000002322 conducting polymer Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 206010011224 Cough Diseases 0.000 description 1
- 229910020881 PMo12O40 Inorganic materials 0.000 description 1
- 229910020628 SiW12O40 Inorganic materials 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000002070 nanowire Substances 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000002210 silicon-based material Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 229910052721 tungsten Inorganic materials 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
- H01G11/46—Metal oxides
-
- 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
- H01G11/50—Electrodes characterised by their material specially adapted for lithium-ion capacitors, e.g. for lithium-doping or for intercalation
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
The invention discloses a kind of preparation methods of titanium dioxide electrode material for super capacitor, and butyl titanate and isopropanol are configured to mixed solution, and nitric acid is added and stirs to obtain TiO2Colloidal solution；Polyoxometallic acid lithium salts is added in nitric acid solution, TiO is added into2In colloidal solution, polyoxometallic acid lithium salts-TiO is formed2The solution of composite material；It irradiates, stir under ultraviolet light, be reduced into heteropoly blue, add graphene oxide solution, form polyoxometallic acid lithium salts-TiO2Graphene composite material solution；Cleaned drying is made.Its diversion sub-feature for playing polyoxometallic acid lithium salts of the present invention, the conductive sub-feature and TiO of graphene2Bigger serface characteristic.Three's synergistic effect sufficiently promotes the performance of supercapacitor.
Description
Technical field
The present invention relates to supercapacitor technologies field more particularly to a kind of titanium dioxide electrode material for super capacitor
Preparation method.
Background technique
Performance of the supercapacitor is excellent, is a kind of novel energy-storing between traditional capacitor and traditional chemical cell
Element.There are specific capacity more higher than traditional capacitor, the specific power bigger than common batteries, and has temperature on probation wide, electric discharge
The features such as power is big, using safety and stability.Supercapacitor is widely used in numerous areas in recent years.
The active material of supercapacitor working electrode is current as the main factor for determining performance of the supercapacitor
One of research hotspot of supercapacitor.Carbon-based material, metal oxide materials, conducting polymer materials and composite material are mesh
The preceding main active substances applied to supercapacitor working electrode.Graphene is the outstanding person of carbon-based material, in recent years
To tremendous expansion.Ferrous oxide is a kind of semiconductor material of class silicon materials, has energy storage to enrich, cheap, chemical property
The advantages that stablizing, because of its poorly conductive, constrains its development in supercapacitor.
Separately having Chinese patent notification number is CN107195464A, and 2017.9.22 discloses a kind of lithium ion super capacitor
The preparation method of electrode material, the electrode material are graphene/polypyrrole/titanium dioxide ternary nano linear array composite material,
It is that graphite oxide, titanium dioxide granule are prepared into dispersion liquid respectively；Ammonium persulfate is dissolved in sulfuric acid solution again, preparation oxidation
Agent solution；Pyrrole monomer is added in graphite oxide dispersion, adds oxidizing agent solution, reaction obtains graphite oxide/poly- pyrrole
Cough up nano-wire array compound；Graphite oxide/polypyrrole nano line array compound is mixed with titanium oxide dispersion, is added
Oxidizing agent solution, reaction obtain graphite oxide/polypyrrole/titanium dioxide ternary nano linear array compound；Oxidation stone therein
Ink is reduced to graphene, obtains graphene/polypyrrole/titanium dioxide ternary nano linear array compound.Foregoing invention is previously mentioned
Graphene, conductive polymer polypyrrole is the excellent conductive material of electronic conduction, and the electrode material of preparation is mainly needle
Electronic conduction is promoted, does not consider the promotion of ion conduction.
Summary of the invention
In order to overcome the drawbacks of the prior art, the present invention provides a kind of systems of titanium dioxide electrode material for super capacitor
The capacitor electrode material of Preparation Method, this method preparation will greatly promote the performance of supercapacitor.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is that:
A kind of preparation method of titanium dioxide electrode material for super capacitor, which comprises the steps of:
(1) butyl titanate and isopropanol are configured to mixed solution, the nitre of 70% concentration is then added into mixed solution
Acid stirs to get stable transparent TiO2Colloidal solution；
(2) polyoxometallic acid lithium salts is added in nitric acid solution, and is configured to pH value=1-5 acid solution；It will configure
Acid solution configured TiO is added2In colloidal solution, polyoxometallic acid lithium salts-TiO is formed2The solution of composite material；
(3) by resulting polyoxometallic acid lithium salts-TiO2The solution of composite material is irradiated under ultraviolet light, is stirred, and is made
Photo-reduction occurs for polyoxometallic acid lithium salts at heteropoly blue, forms heteropoly blue lithium salts-TiO2The solution of composite material；
(4) in heteropoly blue lithium salts-TiO2Graphene oxide solution is added in the solution of composite material, it is anti-that redox occurs
It answers, heteropoly blue lithium salts is oxidized to polyoxometallic acid lithium salts, and graphene oxide is reduced into redox graphene, is formed mostly golden
Belong to oxygen acid lithium salts-TiO2Graphene composite material solution；
(5) by the polyoxometallic acid lithium salts-TiO of preparation2The cleaning of graphene composite material solution, drying are made described
Electrode material for super capacitor.
Gained composite material is prepared into super capacitor slurry, is coated in nickel foam, and carries out tabletting, cut-parts, group
It dresses up supercapacitor and carries out volume test.
The mass ratio of the butyl titanate and isopropanol is 1:1.
Agitating mode in the step (1) are as follows: after being first stirred at room temperature 2 hours, 80 DEG C are then heated to, after
Continuous stirring 4 hours, obtains stable transparent TiO2Colloidal solution.
It in the step (3), irradiates 8 hours under ultraviolet light, and is stirred in irradiation.
By polyoxometallic acid lithium salts-TiO in the step (5)2Graphene composite material solution is filtered, with distillation
Water and alcohol successively clean the solid on strainer, until colourless, then will dry under solid in an oven 80 degrees Celsius.
The invention has the following advantages that
1, TiO in the present invention2Colloidal particle is both sexes, and particle surface is positively or negatively charged, depends on surrounding and is situated between
The pH value of matter.In the present invention, due to TiO2Particle is positively charged in acidic aqueous solution, thus negatively charged polyacid and
Positively charged TiO2Can by the electrostatic attraction between opposite charges species it is spontaneous assemble.
2, the composite material has excellent electronic conduction because of the effect of graphene, and because of the effect of polyoxometallic acid lithium salts
There is excellent lithium ion conduction, be prepared into electrode material for super capacitor, electrolyte uses the acidity containing lithium ion
Solution, while using the porous structure of titanium dioxide itself, the performance of supercapacitor will be greatly promoted.
3, polyoxometallic acid lithium salts of the present invention is Li3XY12O40, Li4XY12O40One or more of mixture；X
Refer to any one in two kinds of elements of P, Si；Y refers to any one in two kinds of elements of Mo, W, and polyoxometallate series structure is most steady
Fixed, resource is sufficient, and production cost is low.
Specific embodiment
Below with reference to embodiment, the present invention is further elaborated, but the present invention is not limited to following embodiment, the sides
Method is conventional method unless otherwise instructed, and the material can be gotten from open business unless otherwise instructed.
Embodiment 1
A kind of preparation method of titanium dioxide electrode material for super capacitor, includes the following steps:
(1) butyl titanate and isopropanol 1:1 in mass ratio are configured to mixed solution, are then added into mixed solution
The nitric acid of 70% concentration after this mixed solution is stirred 2 hours at room temperature, is heated to 80 DEG C, continues stirring 4 hours, obtains
Stable transparent TiO2Colloidal solution.
(2) by polyoxometallic acid lithium salts Li3PW12O40It is added in nitric acid solution, and is configured to pH value=1-5 acid solution.
Configured TiO is added dropwise in configured acid solution2In colloidal solution, polyoxometallic acid lithium salts Li is formed3PW12O4-
TiO2The solution of composite material.
(3) by resulting polyoxometallic acid lithium salts Li3PW12O4- TiO2The solution of composite material irradiates 8 under ultraviolet light
Hour, it is stirred in irradiation, makes polyoxometallic acid lithium salts that photo-reduction occur into Li3PW12O4Heteropoly blue forms heteropoly blue lithium salts
Li3PW12O4-TiO2The solution of composite material.
(4) heteropoly blue lithium salts Li3PW12O4-TiO2Graphene oxide solution is added in the solution of composite material, makes to have also
The heteropoly blue lithium salts Li of original work3PW12O4Redox reaction, heteropoly blue lithium occurs with the graphene oxide with oxidation
Salt Li3PW12O4It is oxidized to polyoxometallic acid lithium salts, graphene oxide is reduced into redox graphene, forms more metals
Oxygen acid lithium salts Li3PW12O4- TiO2Graphene composite material.
(5) by the polyoxometallic acid lithium salts-TiO of preparation2Graphene composite material solution is filtered, with distilled water and
Alcohol successively cleans the solid on strainer, until colourless, then will dry under solid in an oven 80 degrees Celsius, and institute is made
State electrode material for super capacitor.
Using test: gained electrode material for super capacitor is prepared into super capacitor slurry, is coated in nickel foam,
And tabletting is carried out, cut-parts are assembled into supercapacitor and carry out volume test.
By test capacity divided by active matter quality, the specific capacity (F/g) of electrode material is obtained.
Embodiment 2
Preparation method and test method only change polyoxometallic acid lithium salts into Li with embodiment 13PMo12O40。
Embodiment 3
Preparation method and test method only change polyoxometallic acid lithium salts into Li with embodiment 14SiMo12O40。
Embodiment 4
Preparation method and test method only change conducting polymer monomer into Li with embodiment 14SiW12O40。
Comparative example 1
Polyoxometallate is not added, directly with the TiO prepared2Colloidal solution is reacted with graphene oxide, then
Filtering is washed, drying, and is prepared into electrode material for super capacitor and is carried out assembling test.
Comparative example 2
Not containing graphene in composite material, directly with the TiO prepared2Colloidal solution and polyoxometallic acid lithium salts carry out anti-
It answers, refilters, wash, drying, and be prepared into electrode material for super capacitor and carry out assembling test.
By above-described embodiment 1-4 and comparative example, gained capacitor does volume test, and calculates specific capacity result and be detailed in
Table:
Specific capacity comparison can be seen that from table, is higher than using the electrode material specific capacity of three kinds of Material claddings and uses two kinds of materials
Expect compound specific capacity, shows that both polyoxometallic acid lithium salts and graphene have effect to specific capacity is improved.
Claims (6)
1. a kind of preparation method of titanium dioxide electrode material for super capacitor, which comprises the steps of:
(1) butyl titanate and isopropanol are configured to mixed solution, the nitric acid that 70% concentration is then added into mixed solution stirs
It mixes to obtain stable transparent TiO2Colloidal solution；
(2) polyoxometallic acid lithium salts is added in nitric acid solution, and is configured to pH value=1-5 acid solution；By configured acid
Property solution configured TiO is added2In colloidal solution, polyoxometallic acid lithium salts-TiO is formed2The solution of composite material；
(3) by resulting polyoxometallic acid lithium salts-TiO2The solution of composite material is irradiated under ultraviolet light, is stirred, and makes more metals
Photo-reduction occurs for oxygen acid lithium salts at heteropoly blue, forms heteropoly blue lithium salts-TiO2The solution of composite material；
(4) in heteropoly blue lithium salts-TiO2Graphene oxide solution is added in the solution of composite material, redox reaction occurs, it is miscellaneous
More indigo plant lithium salts are oxidized to polyoxometallic acid lithium salts, and graphene oxide is reduced into redox graphene, form multi-metal oxygen
Sour lithium salts-TiO2Graphene composite material solution；
(5) by the polyoxometallic acid lithium salts-TiO of preparation2The cleaning of graphene composite material solution, drying, are made the super electricity
Container electrode material.
2. a kind of preparation method of titanium dioxide electrode material for super capacitor according to claim 1, it is characterised in that:
The mass ratio of the butyl titanate and isopropanol is 1:1.
3. a kind of preparation method of titanium dioxide electrode material for super capacitor according to claim 1, it is characterised in that:
Agitating mode in the step (1) are as follows: after being first stirred at room temperature 2 hours, be then heated to 80 DEG C, continue stirring 4
Hour, obtain stable transparent TiO2Colloidal solution.
4. a kind of preparation method of titanium dioxide electrode material for super capacitor according to claim 1, it is characterised in that:
It in the step (3), irradiates 8 hours under ultraviolet light, and is stirred in irradiation.
5. a kind of preparation method of titanium dioxide electrode material for super capacitor according to claim 1, it is characterised in that:
By polyoxometallic acid lithium salts-TiO in the step (5)2Graphene composite material solution is filtered, with distilled water and alcohol
Then the solid successively cleaned on strainer will dry until colourless under solid in an oven 80 degrees Celsius.
6. a kind of preparation method of titanium dioxide electrode material for super capacitor according to claim 1, it is characterised in that:
The polyoxometallic acid lithium salts is Li3XY12O40, Li4XY12O40One or more of mixture；X refers to two kinds of members of P, Si
Any one in element；Y refers to any one in two kinds of elements of Mo, W.
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| CN201810252766.7A CN108417409B (en) | 2018-03-26 | 2018-03-26 | A kind of preparation method of titanium dioxide electrode material for super capacitor |
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| CN201810252766.7A CN108417409B (en) | 2018-03-26 | 2018-03-26 | A kind of preparation method of titanium dioxide electrode material for super capacitor |
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| CN110803745B (en) * | 2019-12-16 | 2022-04-01 | 嘉兴市众盛环保科技有限公司 | Polyoxometallate composite particle electrode and preparation method and application thereof |
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| CN104051734B (en) * | 2014-06-16 | 2016-06-01 | 中国东方电气集团有限公司 | A kind of polyoxometallate carbon nanotube lithium battery electrode materials and its preparation method |
| DE102015218433A1 (en) * | 2015-09-25 | 2017-03-30 | Robert Bosch Gmbh | Hybrid supercapacitor |
| CN106298270B (en) * | 2016-11-02 | 2018-08-03 | 江苏尊道科技有限公司 | A kind of positive plate of Asymmetric Supercapacitor and its preparation method and application |
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