CN105712448A - Preparation method of Nafion/porous carbon composite electrode material for capacitive adsorption desalting - Google Patents
Preparation method of Nafion/porous carbon composite electrode material for capacitive adsorption desalting Download PDFInfo
- Publication number
- CN105712448A CN105712448A CN201610107667.0A CN201610107667A CN105712448A CN 105712448 A CN105712448 A CN 105712448A CN 201610107667 A CN201610107667 A CN 201610107667A CN 105712448 A CN105712448 A CN 105712448A
- Authority
- CN
- China
- Prior art keywords
- porous carbon
- nafion
- electrode material
- combination electrode
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/4604—Treatment of water, waste water, or sewage by electrochemical methods for desalination of seawater or brackish water
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Molecular Biology (AREA)
- Health & Medical Sciences (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention provides a preparation method of a Nafion/porous carbon composite electrode material for capacitive adsorption desalting. The preparation method is characterized in that the method includes the step a, a porous carbon material is subjected to ultrasonic dispersion in water, a Nafion solution and an adhesion agent are added, pulp liquid is prepared in a mechanical stirring and blending mode, the pulp liquid stands still and stays overnight, after supernatant is removed, a flocculent mixture is formed through drying, the mixture is wetted with ethyl alcohol and then is pressed on an inert conductor in a rolling mode, and a Nafion/porous carbon composite electrode is obtained; or, the step b, a porous carbon material is subjected to ultrasonic dispersion in water, an adhesion agent is added, pulp liquid is prepared in a mechanical stirring and blending mode, the pulp liquid stands still and stays overnight, after supernatant is removed, the flocculent mixture is formed through drying, the mixture is wetted with ethyl alcohol and then is pressed on an inert conductor in a rolling mode, a porous carbon electrode is formed, the surface of the porous carbon electrode is coated with a Nafion solution, and the Nafion/porous carbon composite electrode material is obtained. The repelling effect of same ions in the capacitive desalting process can be effectively improved, current efficiency is improved, and energy consumption is reduced.
Description
Technical field
The preparation method that the invention belongs to capacitive adsorption desalination electrode, Nafion/ porous carbon combination electrode prepared by the present invention can effectively reduce same ion repulsive interaction, improves current efficiency, has efficient desalting effect.
Background technology
Capacitive adsorption desalting technology is the technology of a kind of outstanding advantage with efficient, energy-conservation and environmental protection, this technology is based on double layer capacity principle, under external power supply effect, in solution, the salt ion of solubility is adsorbed on on electrode charged on the contrary under electrostatic field, thus removing the purpose reaching desalinating saline water from water；In discharge process, by electric pole short circuit or reversal connection, ion desorption electrode regeneration energy also can be recycled further.Can be applicable to the aspects such as the desalination of sea water and bitter and water softening.Porous carbon materials has the advantages such as good chemical stability, abundant pore structure, higher reference area, thus prepared by the research and development that the porous carbon materials such as activated carbon, carbon nano-fiber, CNT, Graphene, carbon aerogels, mesoporous carbon have been widely used for electrode material.But in actual desalination processes, when electrode is applied power source charges, the while that the contrary lotus of electrode adsorption being electro-ionic, also consuming electric energy and repel in solution by same ion, ultimately resulting in energy consumption increases, and current efficiency reduces.
Many by porous carbon materials surface modified active functional group, increasing the modes such as ion exchange membrane and prepare the selectivity improving electrode both at home and abroad at present, improve current efficiency and the desalination speed of capacitive desalination device.Yu-JinKim et al. (Yu-JinKim, Jae-HwanChoi.Enhanceddesalinationefficiencyincapacitived eionizationwithanion-selectivemembrane.SeparationandPuri ficationTechnology71 (2010) 70-75) prepare membrane capacitance by increase cation exchange membrane in the capacitor, being effectively improved the ion selectivity of desalter, its current efficiency rises to 83.9%～91.3% from 35.5%～43.1%.
Nafion is a kind of cationite being made up of perfluorinated sulfonic acid ester, and the end of the chain is hydrophilic ionizing sulfonic group, and the Nafion of ionizing is electronegative, it is possible to intercept anion by electrical charge rejection, therefore cation has good selective penetrated property.
The present invention utilizes raw material based on porous carbon materials electrode, it is modified in electrode interior or surface by Nafion component.Utilize the unique ion selectivity of Nafion molecule and its end of the chain abundant sulfonic acid group that modified electrode is assembled into asymmetric capacitive desalination device, the ion selectivity of electrode can be improved on the one hand, reduce coion repelling effect, the sulfonic acid group that its surface is abundant on the other hand can be effectively improved its hydrophilic, promotes that ion is in the transmission of electrode surface.
Summary of the invention
It is an object of the invention to in capacitive adsorption desalination processes, the repulsive interaction of coion causes the reduction of current efficiency, the problem that desalting performance declines, it is provided that the preparation method of a kind of Nafion/ porous carbon combination electrode material.
In order to achieve the above object, the preparation method that the invention provides a kind of capacitive adsorption desalination Nafion/ porous carbon combination electrode material, it is characterised in that include
Step a: by porous carbon materials ultrasonic disperse in water, add Nafion solution and binding agent, mechanical agitation is blended prepares serosity, serosity stands overnight, after removing supernatant, drying formed cloud mixture, by mixture with ethanol wet roll-in on inert conductor, obtain Nafion/ porous carbon combination electrode；
Or, including step b: by porous carbon materials ultrasonic disperse in water, add binding agent, the blended serosity of preparing of mechanical agitation, serosity stands overnight, after removing supernatant, drying forms cloud mixture, mixture ethanol wet roll-in is formed porous carbon electrodes on inert conductor, utilizes high voltage electric field that Nafion solution is sprayed at porous carbon electrodes surface, obtain Nafion/ porous carbon combination electrode.
Preferably, the porous carbon materials in described step a and step b is one or more in activated carbon, electrically conductive graphite, CNT, carbon fiber and carbon aerogels.
Preferably, the water in described step a and step b is pure water.
Preferably, the mass fraction of the Nafion solution in described step a and step b is 5%, and solvent is the mixture of water and volatile organic matter.
Preferably, the Nafion solution in described step a and step b is Du Pont's Nafion5% coating solution.
Preferably, the binding agent in described step a and step b is mass percentage concentration be 6～10% politef (PTFE) emulsion, mass percentage concentration be 6～10% polyvinylidene fluoride emulsion, mass percentage concentration be 6～10% polyethylene emulsion and polypropylene emulsion that mass percentage concentration is 6～10% in one or more.
Preferably, described inert conductor is one or more in titanium net, graphite paper and nickel foam.
Preferably, in described step a, every gram of porous carbon materials adds the amount of Nafion solution is 0.2～2.5ml, by porous carbon materials in water in the dispersion liquid of ultrasonic disperse gained the concentration of porous carbon materials be 20～80mg/mL.
Preferably, described step b utilize the operating condition that Nafion solution is sprayed at porous carbon electrodes surface by high voltage electric field be: voltage is 15～25kV unidirectional current, syringe pump spraying flow is 0.8～1.2ml/h, needle diameter is 0.8～1.5mm, syringe needle and porous carbon electrodes surface distance are 10～30cm, spray time is 0.5～4h, and controlling ambient temperature is 20～30 DEG C, and relative humidity is 20～40%.
Preferably, the mechanical agitation in described step a and step b carries out under room temperature, normal pressure, and stir speed (S.S.) is 600r/min, and mixing time is 2～4h.
Preferably, the thickness of the Nafion/ porous carbon combination electrode in described step a and step b is 0.2-2mm.
The present invention, with Du Pont's Nafion5% coating solution for modifying agent, prepares Nafion/ porous carbon combination electrode material.Nafion molecule can improve the ion selectivity of electrode on the one hand, reduce coion repelling effect, contain abundant sulfonic acid group can be effectively improved its hydrophilic thus improving the current efficiency of capacitor, on the other hand Nafion molecular surface, promote that ion is in the transmission of electrode surface.By research, Nafion/ porous carbon combination electrode is used for negative pole and is assembled into asymmetric capacitive desalination device, it is possible to increase the adsorptive selectivity to ion, improve its desalting performance.
Compared with prior art, the invention has the beneficial effects as follows:
1. the electrode preparation method of the present invention carries out at normal temperatures and pressures, simple to operate.
2. there is due to Nafion molecule the ion selectivity of excellence and abundant sulfonic acid group, hence with Nafion solution, porous carbon materials is modified, it is possible to improve the ion selectivity of electrode simultaneously, promote that ion is in the diffusion of electrode surface and absorption.The combination electrode of present invention preparation used can assemble asymmetric capacitive desalination device as the negative pole of capacitive desalination device and carry out desalination, it is possible to reduces electrode surface coion and repels.The current efficiency being effectively improved common porous carbon electrode is low, the problem that energy consumption is high.
Accompanying drawing illustrates:
Fig. 1 is the SEM shape appearance figure of the Nafion/AC electrode of preparation in embodiment 1.
Fig. 2 is asymmetric capacitor (AC | | Nafion/AC) and symmetric capacitor (AC | | AC) electrical conductivity versus time curve under constant current charge-discharge pattern.
Fig. 3 is asymmetric capacitor (AC | | Nafion/AC-b) and symmetric capacitor (AC | | AC) electrical conductivity versus time curve under constant current charge-discharge pattern.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is expanded on further.Should be understood that these embodiments are merely to illustrate the present invention rather than restriction the scope of the present invention.In addition, it is to be understood that after having read the content that the present invention lectures, the present invention can be made various changes or modifications by those skilled in the art, and these equivalent form of values fall within the application appended claims limited range equally.
Comparative example
The preparation of pure activated carbon electrodes and symmetric capacitor desalination test: (controlled trial)
Taking activated carbon 2g ultrasonic disperse in 100ml pure water, add Du Pont 60%wtPTFE emulsion 0.24g, prepare serosity with the rotating speed blended 2h of 600r/min mechanical agitation under normal temperature and pressure, serosity stands overnight, after removing supernatant, dries and obtain mixture in 95 DEG C of baking ovens.Adding a small amount of ethanol 0.5mL moistening in gained mixture, roll-in in flakes and is pressed in titanium on the net, obtains pure activated carbon (AC) electrode.
Take the pure activated carbon electrodes of two panels and be assembled into symmetric capacitor (AC | | AC), in the NaCl solution of 500mg/L, arrange by voltage 1.2V, carry out constant current charge-discharge test.The single cycle desalination amount of the pure activated carbon AC electrode of experiment test is 4.4mg/g, and current efficiency is 38%.
Embodiment 1
Take activated carbon 2g ultrasonic disperse in 100ml pure water, it is added thereto to 2mlNafion5% solution (Du Pont's Nafion5% coating solution), Du Pont 60%wtPTFE emulsion 0.24g, serosity is prepared with the rotating speed blended 2h of 600r/min mechanical agitation under normal temperature and pressure, serosity stands overnight, after removing supernatant, dry in 95 DEG C of baking ovens and obtain cotton-shaped Nafion/ Mixture of Activated Carbon.Adding ethanol 0.5mL moistening in gained mixture, roll-in in flakes and is pressed in titanium on the net, obtains Nafion/ activated carbon (Nafion/AC-a) electrode that thickness is 0.3mm.Fig. 1 is the SEM shape appearance figure of Nafion/AC-a electrode.
With Nafion/AC-a electrode for negative pole, pure activated carbon electrodes is that positive pole is assembled into asymmetric capacitive desalination device (AC | | Nafion/AC-a), in the NaCl solution of 500mg/L, arranges by voltage 1.2V, carries out constant current charge-discharge test.Fig. 2 is asymmetric capacitor (AC | | Nafion/AC-a) and symmetric capacitor (AC | | AC) electrical conductivity versus time curve under constant current charge-discharge pattern.AC | | the single cycle desalination amount of Nafion/AC-a electrode is 8.2mg/g, and current efficiency is 58.8%.
Embodiment 2
Take activated carbon 2g ultrasonic disperse in 100ml pure water, it is added thereto to Du Pont 60%wtPTFE emulsion 0.24g, serosity is prepared with the rotating speed blended 2h of 600r/min mechanical agitation under normal temperature and pressure, serosity stands overnight, after removing supernatant, dry in 95 DEG C of baking ovens and obtain cotton-shaped Nafion/ Mixture of Activated Carbon.Ethanol 0.5mL moistening is added in gained mixture, roll-in in flakes and is pressed in titanium and forms porous carbon electrodes on the net, electrode slice thickness is 0.3mm, utilize high voltage electric field that Nafion solution is sprayed at porous carbon electrodes surface, voltage is 18kV unidirectional current, syringe pump spraying flow is 1.0ml/h, needle diameter is 0.8mm, syringe needle and porous carbon electrodes surface distance are 20cm, spray time is 2h, controlling ambient temperature is 25 DEG C, and relative humidity is 35%, obtains Nafion/ activated carbon (Nafion/AC-b) electrode that thickness is 0.3mm.
With Nafion/AC-b electrode for negative pole, pure activated carbon electrodes is that positive pole is assembled into asymmetric capacitive desalination device (AC | | Nafion/AC-b), in the NaCl solution of 500mg/L, arranges by voltage 1.2V, carries out constant current charge-discharge test.Fig. 3 is asymmetric capacitor (AC | | Nafion/AC-b) and symmetric capacitor (AC | | AC) electrical conductivity versus time curve under constant current charge-discharge pattern.
Claims (10)
1. the capacitive adsorption desalination preparation method of Nafion/ porous carbon combination electrode material, it is characterized in that, including step a: by porous carbon materials ultrasonic disperse in water, adding Nafion solution and binding agent, the blended serosity of preparing of mechanical agitation, serosity stands overnight, after removing supernatant, drying formed cloud mixture, by mixture with ethanol wet roll-in on inert conductor, obtain Nafion/ porous carbon combination electrode；Or, including step b: by porous carbon materials ultrasonic disperse in water, add binding agent, the blended serosity of preparing of mechanical agitation, serosity stands overnight, after removing supernatant, drying forms cloud mixture, mixture ethanol wet roll-in is formed porous carbon electrodes on inert conductor, utilizes high voltage electric field that Nafion solution is sprayed at porous carbon electrodes surface, obtain Nafion/ porous carbon combination electrode.
2. the capacitive adsorption desalination preparation method of Nafion/ porous carbon combination electrode material as claimed in claim 1, it is characterized in that, the porous carbon materials in described step a and step b is one or more in activated carbon, electrically conductive graphite, CNT, carbon fiber and carbon aerogels.
3. the capacitive adsorption desalination preparation method of Nafion/ porous carbon combination electrode material as claimed in claim 1, it is characterised in that the water in described step a and step b is pure water.
4. the capacitive adsorption desalination preparation method of Nafion/ porous carbon combination electrode material as claimed in claim 1, it is characterised in that the mass fraction of the Nafion solution in described step a and step b is 5%, and solvent is the mixture of water and volatile organic matter.
5. the capacitive adsorption desalination preparation method of Nafion/ porous carbon combination electrode material as claimed in claim 1, it is characterised in that the Nafion solution in described step a and step b is Du Pont's Nafion5% coating solution.
6. the capacitive adsorption desalination preparation method of Nafion/ porous carbon combination electrode material as claimed in claim 1, it is characterized in that, the binding agent in described step a and step b is mass percentage concentration be 6～10% ptfe emulsion, mass percentage concentration be 6～10% polyvinylidene fluoride emulsion, mass percentage concentration be 6～10% polyethylene emulsion and polypropylene emulsion that mass percentage concentration is 6～10% in one or more.
7. the capacitive adsorption desalination preparation method of Nafion/ porous carbon combination electrode material as claimed in claim 1, it is characterised in that described inert conductor is one or more in titanium net, graphite paper and nickel foam.
8. the capacitive adsorption desalination preparation method of Nafion/ porous carbon combination electrode material as claimed in claim 1, it is characterized in that, in described step a, every gram of porous carbon materials adds the amount of Nafion solution is 0.2～2.5ml, by porous carbon materials in water in the dispersion liquid of ultrasonic disperse gained the concentration of porous carbon materials be 20～80mg/mL.
9. the capacitive adsorption desalination preparation method of Nafion/ porous carbon combination electrode material as claimed in claim 1, it is characterized in that, described step b utilize the operating condition that Nafion solution is sprayed at porous carbon electrodes surface by high voltage electric field be: voltage is 15～25kV unidirectional current, syringe pump spraying flow is 0.8～1.2ml/h, needle diameter is 0.8～1.5mm, syringe needle and porous carbon electrodes surface distance are 10～30cm, spray time is 0.5～4h, controlling ambient temperature is 20～30 DEG C, and relative humidity is 20～40%.
10. the capacitive adsorption desalination preparation method of Nafion/ porous carbon combination electrode material as claimed in claim 1, it is characterized in that, mechanical agitation in described step a and step b carries out under room temperature, normal pressure, and stir speed (S.S.) is 600r/min, and mixing time is 2～4h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610107667.0A CN105712448B (en) | 2016-02-26 | 2016-02-26 | A kind of preparation method of the capacitive adsorption desalination porous carbon composite electrode materials of Nafion/ |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610107667.0A CN105712448B (en) | 2016-02-26 | 2016-02-26 | A kind of preparation method of the capacitive adsorption desalination porous carbon composite electrode materials of Nafion/ |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105712448A true CN105712448A (en) | 2016-06-29 |
| CN105712448B CN105712448B (en) | 2018-10-23 |
Family
ID=56156286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610107667.0A Active CN105712448B (en) | 2016-02-26 | 2016-02-26 | A kind of preparation method of the capacitive adsorption desalination porous carbon composite electrode materials of Nafion/ |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105712448B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107902729A (en) * | 2017-11-17 | 2018-04-13 | 吉林大学 | A kind of titanium-based mixes lanthanum lead dioxide electrode and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101122575A (en) * | 2007-09-13 | 2008-02-13 | 山西大学 | Complex film modified nickel electrode preparation method |
| CN101576530A (en) * | 2009-05-21 | 2009-11-11 | 北京化工大学 | Method for measuring dopamine by utilizing graphite nano-sheet/Nafion composite film to modify electrode |
| US20140346046A1 (en) * | 2011-03-23 | 2014-11-27 | Mespilus Inc. | Polarized Electrode for Flow-through Capacitive Deionization |
| CN104817144A (en) * | 2015-04-13 | 2015-08-05 | 东华大学 | Preparation method of polydopamine modified porous carbon electrode for capacitive deionization |
-
2016
- 2016-02-26 CN CN201610107667.0A patent/CN105712448B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101122575A (en) * | 2007-09-13 | 2008-02-13 | 山西大学 | Complex film modified nickel electrode preparation method |
| CN101576530A (en) * | 2009-05-21 | 2009-11-11 | 北京化工大学 | Method for measuring dopamine by utilizing graphite nano-sheet/Nafion composite film to modify electrode |
| US20140346046A1 (en) * | 2011-03-23 | 2014-11-27 | Mespilus Inc. | Polarized Electrode for Flow-through Capacitive Deionization |
| CN104817144A (en) * | 2015-04-13 | 2015-08-05 | 东华大学 | Preparation method of polydopamine modified porous carbon electrode for capacitive deionization |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107902729A (en) * | 2017-11-17 | 2018-04-13 | 吉林大学 | A kind of titanium-based mixes lanthanum lead dioxide electrode and preparation method thereof |
| CN107902729B (en) * | 2017-11-17 | 2020-02-07 | 吉林大学 | Titanium-based lanthanum-doped lead dioxide electrode and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105712448B (en) | 2018-10-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Wu et al. | High-performance electrode material for electric double-layer capacitor based on hydrothermal pre-treatment of lignin by ZnCl2 | |
| Zhao et al. | Performance comparison and energy consumption analysis of capacitive deionization and membrane capacitive deionization processes | |
| Luo et al. | Graphene bonded carbon nanofiber aerogels with high capacitive deionization capability | |
| Śliwak et al. | Nitrogen-containing chitosan-based carbon as an electrode material for high-performance supercapacitors | |
| Si et al. | Tunable N-doped or dual N, S-doped activated hydrothermal carbons derived from human hair and glucose for supercapacitor applications | |
| Liu et al. | ZnCl2 activated electrospun carbon nanofiber for capacitive desalination | |
| Na et al. | Novel egg white gel polymer electrolyte and a green solid-state supercapacitor derived from the egg and rice waste | |
| CN103979650B (en) | A kind of self-assembling technique prepares the method for electro-adsorption assembly | |
| CN103578788A (en) | Porous carbon combined electrode containing charge conductive nano-particles, preparation of porous carbon combined electrode and application of porous carbon combined electrode | |
| CN105540764A (en) | Preparation and application of electrodes of deionization module of asymmetric capacitor | |
| CN104674382B (en) | Preparation method of porous carbon nanofiber for capacitive deionization | |
| CN1934665A (en) | Preparation of electrode, obtained electrode and supercapacitor comprises the same | |
| Che et al. | Inverted capacitive deionization with highly enhanced stability performance utilizing ionic liquid-functionalized carbon electrodes | |
| Fan et al. | Easy fabrication and high electrochemical capacitive performance of hierarchical porous carbon by a method combining liquid-liquid phase separation and pyrolysis process | |
| CN104817144B (en) | A kind of preparation method of capacitive deionization poly-dopamine modified lithium porous carbon electrodes | |
| Yasin et al. | Design of novel electrode for capacitive deionization using electrospun composite titania/zirconia nanofibers doped-activated carbon | |
| Barcelos et al. | Insights on the role of interparticle porosity and electrode thickness on capacitive deionization performance for desalination | |
| Weng et al. | Carbon electrode with cross-linked and charged chitosan binder for enhanced capacitive deionization performance | |
| Asquith et al. | Cation exchange copolymer enhanced electrosorption | |
| CN107481864A (en) | It is a kind of to prepare high surface, the method for nitrogen oxygen codope carbon material and the application in ultracapacitor by raw material of organic matter | |
| Zhou et al. | Sustainable production of oxygen-rich hierarchically porous carbon network from corn straw lignin and silk degumming wastewater for high-performance electrochemical energy storage | |
| Cao et al. | Electrodeposition cobalt sulfide nanosheet on laser-induced graphene as capacitive deionization electrodes for uranium adsorption | |
| CN107104001B (en) | A method of adsorption of hydrolyzation polyimide molecule improves specific capacitance on the surface of graphene | |
| CN109979764A (en) | The preparation method of cellulose base ionic gel electrolyte for supercapacitor | |
| KR101526246B1 (en) | Composite Electrode For Water Treatment And Method For Manufacturing The Same And Water Treatment System |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |