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
- Publication number
- CN108417409B CN108417409B CN201810252766.7A CN201810252766A CN108417409B CN 108417409 B CN108417409 B CN 108417409B CN 201810252766 A CN201810252766 A CN 201810252766A CN 108417409 B CN108417409 B CN 108417409B
- Authority
- CN
- China
- Prior art keywords
- solution
- lithium salts
- tio
- acid lithium
- 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.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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 OR LIGHT-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 OR LIGHT-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
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810252766.7A CN108417409B (en) | 2018-03-26 | 2018-03-26 | A kind of preparation method of titanium dioxide electrode material for super capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810252766.7A CN108417409B (en) | 2018-03-26 | 2018-03-26 | A kind of preparation method of titanium dioxide electrode material for super capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108417409A CN108417409A (en) | 2018-08-17 |
| CN108417409B true CN108417409B (en) | 2019-10-15 |
Family
ID=63132804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810252766.7A Active CN108417409B (en) | 2018-03-26 | 2018-03-26 | A kind of preparation method of titanium dioxide electrode material for super capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108417409B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109887646B (en) * | 2019-03-08 | 2021-07-06 | 宁波石墨烯创新中心有限公司 | Electrode and manufacturing method thereof |
| 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 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102745676B (en) * | 2012-07-05 | 2014-03-12 | 吉林大学 | Method for preparing graphene and polyoxometalate composite through electrochemical reduction |
| 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 |
-
2018
- 2018-03-26 CN CN201810252766.7A patent/CN108417409B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108417409A (en) | 2018-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5580327B2 (en) | Vanadium battery | |
| Ryu et al. | Catalytic effects of B/N-co-doped porous carbon incorporated with ketjenblack nanoparticles for all-vanadium redox flow batteries | |
| CN103480406B (en) | A kind of nitrogen-doped graphene/nitrogen-doped carbon nanometer pipe/cobaltosic oxide extrusion coating paper and preparation method thereof | |
| Liu et al. | Impedance of Al-substituted α-nickel hydroxide electrodes | |
| CN103928690B (en) | A kind of visible light photocatalysis fuel cell and preparation method thereof | |
| CN104409222A (en) | Preparation method for ternary composites of graphene/manganese dioxide nanosheet /polyaniline nanorod | |
| Matheswaran et al. | A binder-free Ni 2 P 2 O 7/Co 2 P 2 O 7 nanograss array as an efficient cathode for supercapacitors | |
| CN108417409B (en) | A kind of preparation method of titanium dioxide electrode material for super capacitor | |
| Jia et al. | A membrane-less Na ion battery-based CAPMIX cell for energy extraction using water salinity gradients | |
| CN106783201B (en) | A kind of molybdenum sulfide/ferric oxide composite material and its preparation method and application | |
| CN102768902A (en) | Method for manufacturing organic electrolytic capacitor | |
| CN109860643A (en) | A kind of oxygen reduction electro-catalyst and preparation method thereof of aromatic diazo salt surface modification MXene Supported Pt Nanoparticles | |
| JP2014130778A (en) | Stationary vanadium redox battery | |
| CN107512740B (en) | A kind of lithium ion battery negative material FeVO4The preparation method of nano wire | |
| Galal et al. | Effect of redox electrolyte on the specific capacitance of SrRuO3–reduced graphene oxide nanocomposites | |
| Ge et al. | Electrochemical performance of MoO3-RuO2/Ti in H2SO4 electrolyte as anodes for asymmetric supercapacitors | |
| CN109786126B (en) | Preparation method and application of water system high-voltage electrode material | |
| Liu et al. | Improving the performance of negative electrode for vanadium redox flow battery by decorating bismuth hydrogen edetate complex on carbon felt | |
| Chen et al. | A low-cost neutral aqueous redox flow battery with dendrite-free tin Anode | |
| CN107742584A (en) | One seed nucleus nucleocapsid trielement composite material Co3O4/PANI/MnO2Preparation method and use | |
| Lee et al. | A novel cathodic electrolyte based on H 2 C 2 O 4 for a stable vanadium redox flow battery with high charge–discharge capacities | |
| CN103613171A (en) | Preparation method of stainless steel wire mesh electrode loading single-walled carbon nanotubes | |
| CN105609329A (en) | Positive/negative electrode material for high-performance asymmetric capacitor and preparation method for positive/negative electrode material | |
| CN104291310A (en) | Method for preparing supercapacitor-use porous carbon by using urea-formaldehyde resin and citrate | |
| CN109273280B (en) | Flexible composite electrode material and preparation method and application 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |