CN114105260A - Anti-corrosion Ti-based anode electrode material and preparation method and application thereof - Google Patents

Anti-corrosion Ti-based anode electrode material and preparation method and application thereof Download PDF

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CN114105260A
CN114105260A CN202111621188.8A CN202111621188A CN114105260A CN 114105260 A CN114105260 A CN 114105260A CN 202111621188 A CN202111621188 A CN 202111621188A CN 114105260 A CN114105260 A CN 114105260A
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graphene oxide
acid
corrosion
anode electrode
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张国亮
毛静雯
许炉生
孟琴
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Zhejiang University of Technology ZJUT
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Abstract

The invention provides an anticorrosive Ti-based anode electrode material and application thereof in electrochemical reduction of nitrate in water. Preparing a graphene oxide/polyaniline compound by an in-situ polymerization method, coating the prepared graphene oxide/polyaniline compound on a Ti electrode plate, and drying; and finally, coating a BTA layer on the surface of the graphene oxide/polyaniline/Ti pole piece in a spin coating mode to finally form the BTA modified graphene oxide/polyaniline/Ti pole piece. The BTA modified graphene oxide-polyaniline composite material has the advantages of large specific surface area, high temperature resistance, corrosion resistance, high strength and good conductivity, and can be applied to the fields of electrochemical catalysis, anti-corrosion materials, heat conduction materials, lithium ion batteries, supercapacitors, military aerospace materials and the like.

Description

Anti-corrosion Ti-based anode electrode material and preparation method and application thereof
(I) technical field
The invention belongs to the field of industrial wastewater treatment and electrode corrosion prevention, and particularly relates to an anticorrosive Ti-based anode electrode material, a preparation method thereof and application thereof in reduction of nitrate nitrogen.
(II) background of the invention
The nitrate content in the stainless steel electroplating wastewater is high, and the serious harm to human bodies is easily caused. Nitrate itself has no direct harm to human body, but can be converted into nitrite through the action of nitrate reducing bacteria, the toxicity of nitrite is 11 times higher than that of nitrate, nitrite can convert ferrous iron of hemoglobin in blood into ferric iron, so as to generate denatured erythrocyte which no longer has oxygen carrying capacity, and the denatured erythrocyte and hemoglobin for transporting oxygen in blood form methemoglobin, thus seriously affecting the blood oxygen transportation function of human body, even causing respiratory failure of human body. In addition, nitrate and nitrite can be combined with various nitrogen-containing compounds to form nitrosoamine and nitrosoamide which are "three-cause" substances, can induce various tumor diseases, such as brain, respiratory tract, thyroid, intestinal tract, skin and nerve skeleton system, and the nitrate can also cause pathological changes of aquatic organisms such as fish, and influence the aquatic ecosystem, so that attention must be paid to nitrate removal.
For the increasingly serious nitrate pollution problem, domestic and foreign scholars propose a series of treatment methods aiming at nitrate pollution. At present, the conventional treatment techniques for nitrate mainly include physical, biological and chemical treatment techniques. The physical treatment technology has high treatment efficiency on the nitrate in the underground water, the experimental operation is simple and easy to control, but the treatment cost is high, the nitrate is only transferred or concentrated and is not completely removed, and secondary pollution is likely to be caused. The biological treatment technology has high removal efficiency, good stability and relatively low treatment cost, but the reactor has large volume and slow treatment period and is easily influenced by the surrounding environment, so the method has a plurality of limitations in practical application. The chemical method for treating the nitrate in the underground water has the advantages of non-toxic and easily obtained materials, quick reaction and the like, but the method cannot completely convert the nitrate into non-toxic and harmless nitrogen, can generate pollutants such as metal ions and the like to cause secondary pollution to the environment, and has limited application prospect.
The electrochemical treatment technology for removing the nitrate is a process of reducing the nitrate into products such as nitrogen, ammonia and the like by applying an external current and depending on the electrolytic reaction on the surface of an electrode in the reaction process by taking a metal or nonmetal material as a cathode. Compared with physical, biological and chemical treatment technologies, the electrochemical technology has the advantages of high treatment efficiency, simplicity and convenience in operation, low energy consumption, environmental friendliness and the like, and is generally concerned. Experts and scholars have conducted a great deal of scientific research on the mechanism of electrochemical removal of nitrate and the influence of various factors. In nitrate reduction systems, NaCl is often added to the solution as an electrolyte to increase the current density and enhance the reduction capacity, but metal electrodes are more severely corroded in Cl-containing media. The key problem in electrochemical reduction of nitrate nitrogen is the preparation of inexpensive corrosion-resistant metal anodes.
Disclosure of the invention
In order to overcome the problems in the prior art, the invention provides an anticorrosive Ti-based anode electrode material, a preparation method thereof and application thereof in reducing nitrate nitrogen.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the preparation of an anticorrosive Ti-based anode electrode material is used for reducing nitrate nitrogen, a cheap Ti electrode is selected for an anode, a novel anticorrosive material is coated on the anode, a copper electrode is selected for a cathode, nitrate is effectively removed in an electrochemical reaction tank, and the preparation method relates to the idea that the preparation method specifically comprises the following steps:
preparing an anticorrosive coating, namely adding an aniline monomer into a graphene oxide solution, preparing a polyaniline-graphene oxide composite material by a solution polymerization method, coating the prepared anticorrosive coating on a Ti electrode plate, and introducing a typical organic corrosion inhibitor Benzotriazole (BTA) by a spin coating method.
In a first aspect, the invention provides an anticorrosive Ti-based anode electrode material, which is prepared according to the following method:
(1) uniformly dispersing graphene oxide in a solvent A to obtain a graphene oxide dispersion liquid; adding aqueous solution of aniline and 0.1-2mol/L (preferably 1.5mol/L) acid, adding a free radical initiator under stirring, reacting for 2-12 h at 20-60 ℃ (preferably 25 ℃) for in-situ polymerization, and carrying out aftertreatment on the obtained reaction liquid to obtain a polyaniline-graphene oxide composite material;
the solvent A is one or more of water, ethanol, ethylene glycol, isopropanol, N-butanol, N-dimethylformamide, acetone and toluene (preferably water or ethanol); the acid in the acid water solution is one or a mixture of two of inorganic acid and organic acid; the mass ratio of the graphene oxide to the aniline to the radical initiator is 1: 5-40: 5-20 (preferably 1:10: 7.5); the mass ratio of the aniline to the acid aqueous solution is 1: 1-5 (preferably 1: 2);
(2) mixing and grinding the polyaniline-graphene oxide composite material obtained in the step (1), a conductive agent and a binder uniformly, adding a solvent B to prepare a slurry, coating the slurry on a Ti pole piece, and drying (drying at 50-120 ℃ for 6-18 h, preferably drying at 80 ℃ for 8h in vacuum) to obtain an electrode pole piece; the mass ratio of the polyaniline-graphene oxide composite material to the conductive agent to the binder is 80-95: 12: 3-10 (preferably 84: 12: 6); the conductive agent is one or a mixture of more than two of acetylene black, carbon nano tubes, carbon nano wires, carbon black KS-6 and carbon black SP; the binder is polyvinylidene fluoride (PVDF) or Polytetrafluoroethylene (PTFE);
(3) and (3) spin-coating 0.1-1 mol/L (preferably 0.2mol/L) isopropanol solution of benzotriazole on the surface of the electrode piece in the step (2), and drying to obtain the anticorrosive Ti-based anode electrode material.
Further, the volume of the solvent A in the step (1) is 0.5-3 mL/mg (preferably 1mL/mg) based on the mass of the graphene oxide.
Further, in the step (1), the inorganic acid is one or a mixture of two of hydrogen chloride, sulfuric acid, phosphoric acid and nitric acid (preferably hydrogen chloride); the organic acid is one or a mixture of two of acetic acid, tartaric acid, citric acid, oxalic acid and sulfamic acid.
Preferably, the free radical initiator in the step (1) is one or a mixture of more than two of sodium persulfate, potassium persulfate, ammonium persulfate, azobisisobutyronitrile, benzoyl peroxide, tert-butyl peroxybenzoate and tert-butyl hydroperoxide.
Further, the post-treatment in the step (1) is as follows: and centrifuging the reaction solution, taking the precipitate, centrifuging and washing the precipitate with pure water, and drying the precipitate in vacuum at 30-80 ℃ (preferably at 60 ℃) to obtain the polyaniline-graphene oxide composite material.
Further, in the step (2), the solvent B is one or a mixture of more than two of water, ethanol, methanol, n-butanol and isopropanol.
Further, the volume of the solvent B in the step (2) is 20-60 mL/g (preferably 30mL/g) based on the mass of the conductive agent.
Further, in the step (3), the drying temperature is 50-80 ℃, and the vacuum drying time is 1-6 hours.
Furthermore, the spin-coating speed in the step (3) is 2000-5000 rpm, and the spin-coating time is 20-60 s.
The graphene oxide used in the present invention was prepared by a modified Hummers method:
NaNO is reacted under ice-bath condition (0-5 deg.C)3Adding natural crystalline flake graphite and the natural crystalline flake graphite into a 98% concentrated sulfuric acid solution, uniformly stirring, adding potassium permanganate, continuously stirring for 2 hours under an ice bath condition, transferring the obtained mixture into an oil bath at 35 ℃ for reaction for 1-2 hours, adding deionized water, raising the temperature to 80-100 ℃ for reaction for 30 minutes, adding 30 wt% of hydrogen peroxide to remove residual potassium permanganate after the obtained mixed solution is cooled to room temperature, centrifuging, sequentially centrifugally washing the obtained precipitate with dilute hydrochloric acid and deionized water, and performing vacuum drying at 30-60 ℃ to obtain the graphene oxide; the NaNO3The mass ratio of the natural crystalline flake graphite to the potassium permanganate is 1:1: 4; the volume of the concentrated sulfuric acid solution is 20-50 ml/g based on the mass of the natural crystalline flake graphite; the volume ratio of the deionized water to the concentrated sulfuric acid is 1-1.5: 1; the volume ratio of the hydrogen peroxide to the concentrated sulfuric acid is 0.05-0.1: 1.
in a second aspect, the invention also provides an application of the anti-corrosion Ti-based anode electrode material in reduction of nitrate nitrogen. In particular to the application in reducing nitrate nitrogen in chlorine-containing wastewater.
The chlorine-containing wastewater can cause serious corrosion to common electrodes, and the electrode provided by the invention has excellent corrosion resistance, and further realizes the improvement of nitrate degradation effect under the corrosion-resistant precursor.
Specifically, the application is as follows: and (3) taking the anticorrosive Ti-based anode electrode material as an anode, a copper electrode as a cathode, and waste water containing chloride ions and nitrate radicals as electrolyte, and carrying out electrolytic reduction at constant voltage.
The concentration of chloride ions in the wastewater is 5-20 g/L, and the concentration of nitrogen in nitrate radical is 1.5-2 g/L.
Preferably, the chloride ion is added in the form of sodium chloride.
In the invention, the connection between the waste water pool and the electrolytic tank adopts a backflow type, the waste water is lifted by a peristaltic pump and flows in from the bottom of the electrolytic tank, and the waste water after electrolytic treatment flows out from the upper part of the electrolytic tank and flows back to the effluent collecting device.
The electrochemical treatment of the pickling wastewater mainly comprises two catalytic reactions, namely 1) strong oxidizing substances (hypochlorous acid, hydroxyl free radicals and the like) and ammonia Nitrogen (NH) in the wastewater are generated by utilizing an anode area of an electrolytic cell4 +,NH3·H2O) reaction to N2Thereby achieving the purpose of sewage denitrification. 2) Nitrate and Nitrite (NO) in the sewage are removed by utilizing a cathode of an electrochemical reactor3 -，NO2 -) Reduction to NH4 +And then reacts with the strong oxidizing substance generated in the anode region to generate harmless N2。
Electrochemical reaction process near the cathode:
Figure BDA0003438073920000031
Figure BDA0003438073920000032
Figure BDA0003438073920000033
Figure BDA0003438073920000034
under the condition that chloride ions or hypochlorite ions exist in the system, ammonia nitrogen which is the product of electrochemical reduction is indirectly oxidized into harmless gas nitrogen by active chlorine, namely, the chloride ions in the solution are oxidized into C12，C12Dissolving in water to generate HClO, C1O with strong oxidizing property-And oxidizing and removing ammonia nitrogen generated in the wastewater. The main reaction mechanism is shown in formulas (5) to (11):
electrochemical reaction history near the anode:
2Cl-→Cl2+2e- (5)
Cl2+H2O→HClO+H++Cl- (6)
HClO→ClO-+H+ (7)
-OH-e-→·OH (8)
Figure BDA0003438073920000041
Figure BDA0003438073920000042
Figure BDA0003438073920000043
compared with the prior art, the invention has the beneficial effects that:
(1) double anti-corrosion layers are designed for the first time, namely, graphene oxide/polyaniline and benzotriazole are introduced in sequence, so that the anode material has better anti-corrosion property;
(2) preparing a graphene oxide/polyaniline composite material by using a graphene oxide in-situ polymerized aniline monomer, so that polyaniline and graphene oxide are firmly combined, and the stability of the first anticorrosive layer is improved; meanwhile, due to the special electrical and optical properties of polyaniline, the doped Ti-based anode has excellent conductivity and electrochemical performance, and the degradation effect of nitrate is further improved under the anticorrosion condition;
(3) the typical organic corrosion inhibitor Benzotriazole (BTA) introduced into the second anticorrosive layer has good anticorrosive performance particularly for metal in halogen medium, and the introduction mode of spin coating is simple, rapid and efficient, and has good amplification prospect.
(IV) description of the drawings
Fig. 1 is a scanning electron micrograph of polyaniline-graphene oxide in example 1 of the present invention.
(V) detailed description of the preferred embodiments
The present invention will be described in detail below with reference to specific examples, but the present invention is not limited to the following examples, and various modifications and implementations are included within the technical scope of the present invention without departing from the content and scope of the present invention.
The graphene oxide in this embodiment is prepared by the following method:
under ice bath condition, 1.5g of NaNO3And 1.5g of natural flake graphite added to 69ml of 98% concentrated H2SO4To the solution and the mixture is stirred well. Then 6g KMnO4Added into the system and stirred for 2 hours under the ice-bath condition. The mixture was transferred to an oil bath at 35 ℃ for 1 h. Then, 92ml of deionized water was added to the mixed solution, and the temperature of the reaction system was raised to 98 ℃ for 30 min. After the mixed solution was cooled to room temperature, 6ml of 30 wt% H was added2O2Centrifuging to remove residual KMnO4. The centrifuged lower precipitate was washed with 1 wt% dilute hydrochloric acid and then with deionized water. And finally, drying the graphene oxide particles in vacuum at 50 ℃ to obtain the graphene oxide.
Example 1:
(1) preparation of polyaniline-graphene oxide composite material
Weighing 1g of prepared graphene oxide, dispersing the graphene oxide in 1L of pure water, performing ultrasonic dispersion, adding 10g of aniline monomer and 20ml of hydrochloric acid solution with the concentration of 1.5mol/L, adding 7.5g of ammonium persulfate during stirring, and stirring for 2 hours at 25 ℃ to complete in-situ polymerization. Then washed by pure water and centrifuged, and dried in vacuum at 60 ℃.
(2) Ti electrode plate coated polyaniline-graphene oxide composite material
Weighing 1.4g of polyaniline-graphene oxide composite material, 0.2g of acetylene black and 0.1g of polytetrafluoroethylene respectively, mixing and grinding the materials into fine powder in a mortar, adding 6ml of ethanol to prepare slurry into paste, coating the paste on a Ti pole piece, and drying the paste in vacuum at 80 ℃ for 8 hours.
(3) Benzotriazole (BTA) modified polyaniline-graphene oxide/Ti electrode
0.2mol/L of isopropanol solution of BTA is prepared, the BTA solution is coated on the surface of the electrode plate for 30s at the speed of 4000rpm, and vacuum drying is carried out for 4h at the temperature of 60 ℃.
Example 2:
(1) preparation of polyaniline-graphene oxide composite material
Weighing 1g of prepared graphene oxide, dispersing the graphene oxide in 1L of pure water, performing ultrasonic dispersion, adding 25g of aniline monomer and 20ml of hydrochloric acid solution with the concentration of 1.5mol/L, adding 7.5g of ammonium persulfate during stirring, and stirring for 2 hours at 25 ℃ to complete in-situ polymerization. Then washed by pure water and centrifuged, and dried in vacuum at 60 ℃.
(2) Ti electrode plate coated polyaniline-graphene oxide composite material
Weighing 1.4g of polyaniline-graphene oxide composite material, 0.2g of acetylene black and 0.1g of polytetrafluoroethylene respectively, mixing and grinding the materials into fine powder in a mortar, adding 6ml of ethanol to prepare slurry into paste, coating the paste on a Ti pole piece, and drying the paste in vacuum at 80 ℃ for 8 hours.
(3) Benzotriazole (BTA) modified polyaniline-graphene oxide/Ti electrode
0.2mol/L of isopropanol solution of BTA is prepared, the BTA solution is coated on the surface of the electrode plate for 30s at the speed of 4000rpm, and vacuum drying is carried out for 4h at the temperature of 60 ℃.
Example 3:
(1) preparation of polyaniline-graphene oxide composite material
Weighing 1g of the graphene oxide prepared above, dispersing in 1L of pure water, performing ultrasonic dispersion, adding 10g of aniline monomer and 20ml of hydrochloric acid solution with the concentration of 1.5mol/L, adding 7.5g of ammonium persulfate during stirring, and stirring at 25 ℃ for 2h to complete in-situ polymerization. Then washed by pure water and centrifuged, and dried in vacuum at 60 ℃.
(2) Ti electrode plate coated polyaniline-graphene oxide composite material
Weighing 1.5g of polyaniline-graphene oxide composite material, 0.2g of acetylene black and 0.08g of polytetrafluoroethylene respectively, mixing and grinding the materials into fine powder in a mortar, adding 6ml of ethanol to prepare slurry into paste, coating the paste on a Ti pole piece, and drying the paste in vacuum at 80 ℃ for 8 hours. .
(3) Benzotriazole (BTA) modified polyaniline-graphene oxide/Ti electrode
0.2mol/L of isopropanol solution of BTA is prepared, the BTA solution is coated on the surface of the electrode plate for 30s at the speed of 4000rpm, and vacuum drying is carried out for 4h at the temperature of 60 ℃.
Example 4:
(1) preparation of polyaniline-graphene oxide composite material
Weighing 1g of prepared graphene oxide, dispersing the graphene oxide in 1L of pure water, performing ultrasonic dispersion, adding 10g of aniline monomer and 20ml of hydrochloric acid solution with the concentration of 1.5mol/L, adding 7.5g of ammonium persulfate during stirring, and stirring for 2 hours at 25 ℃ to complete in-situ polymerization. Then washed by pure water and centrifuged, and dried in vacuum at 60 ℃.
(2) Ti electrode plate coated polyaniline-graphene oxide composite material
Weighing 1.4g of polyaniline-graphene oxide composite material, 0.2g of acetylene black and 0.1g of polytetrafluoroethylene respectively, mixing and grinding the materials into fine powder in a mortar, adding 6ml of ethanol to prepare slurry into paste, coating the paste on a Ti pole piece, and drying the paste in vacuum at 80 ℃ for 8 hours.
(3) Benzotriazole (BTA) modified polyaniline-graphene oxide/Ti electrode
0.8mol/L of BTA solution in isopropanol is prepared, the BTA solution is coated on the surface of the electrode plate for 30s at the speed of 4000rpm, and vacuum drying is carried out for 4h at the temperature of 60 ℃.
Comparative example 1:
(1) preparation of polyaniline-graphene oxide composite material
Weighing 1g of prepared graphene oxide, dispersing the graphene oxide in 1L of pure water, performing ultrasonic dispersion, adding 10g of aniline monomer and 20ml of hydrochloric acid solution with the concentration of 1.5mol/L, adding 7.5g of ammonium persulfate during stirring, and stirring for 2 hours at 25 ℃ to complete in-situ polymerization. Then washed by pure water and centrifuged, and dried in vacuum at 60 ℃.
(2) Ti electrode plate coated polyaniline-graphene oxide composite material
Weighing 1.4g of polyaniline-graphene oxide composite material, 0.2g of acetylene black and 0.1g of polytetrafluoroethylene respectively, mixing and grinding the materials into fine powder in a mortar, adding 6ml of ethanol to prepare slurry into paste, coating the paste on a Ti pole piece, and drying the paste in vacuum at 80 ℃ for 8 hours.
Comparative example 2:
(1) ti electrode plate coated with BTA material
0.2mol/L of isopropanol solution of BTA is prepared, the BTA solution is coated on the surface of the Ti electrode plate in a spinning mode at the speed of 4000rpm for 30s, and vacuum drying is carried out for 4h at the temperature of 60 ℃.
1500ppm NO is prepared3 --N simulated wastewater (1.625 g of potassium nitrate dried at 110 ℃ was weighed and dissolved in 150mL of deionized water) while adding 2g of NaCl solids. The conductivity of the Benzotriazole (BTA) -modified polyaniline-graphene oxide/Ti electrode prepared by the technical scheme of the invention is measured at room temperature by adopting a four-probe method by taking the anticorrosive Ti-based electrode as an anode material and a copper electrode as a cathode material and performing catalytic reduction at a constant voltage of 10V to prepare a nitrate solution containing high-concentration Cl-, and the specific test results are shown in the following table 1:
TABLE 1 Performance test Table
Electrode for electrochemical cell Reduction ratio after 120 min% Corrosion voltage/mV Corrosion current/. mu.A
Example 1 57.22％ 541.9 5.5
Example 2 69.2％ 523.6 5.1
Example 3 59.1％ 533.8 5.4
Example 4 34.7％ 556.5 7.2
Comparative example 1 20.6％ 582.3 14.9
Comparative example 2 27.3％ 578.1 15.7
Ti electrode 22.1％ 1216.6 33.9

Claims (10)

1. An anti-corrosion Ti-based anode electrode material is characterized by being prepared according to the following method:
(1) uniformly dispersing graphene oxide in a solvent A to obtain a graphene oxide dispersion liquid; adding aqueous solution of aniline and 0.1-2mol/L acid, adding a free radical initiator under stirring, reacting at 20-60 ℃ for 2-12 h to carry out in-situ polymerization, and carrying out aftertreatment on the obtained reaction liquid to obtain a polyaniline-graphene oxide composite material;
the solvent A is one or a mixture of more than two of water, ethanol, ethylene glycol, isopropanol, N-butanol, N-dimethylformamide, acetone and toluene; the acid in the acid water solution is one or a mixture of two of inorganic acid and organic acid; the mass ratio of the graphene oxide to the aniline to the free radical initiator is 1: 5-40: 5-20; the mass ratio of the aniline to the acid aqueous solution is 1: 1-5;
(2) mixing and grinding the polyaniline-graphene oxide composite material obtained in the step (1), a conductive agent and a binder uniformly, adding a solvent B to prepare slurry, coating the slurry on a Ti pole piece, and drying to obtain an electrode pole piece; the mass ratio of the polyaniline-graphene oxide composite material to the conductive agent to the binder is 80-95: 12: 3-10; the conductive agent is one or a mixture of more than two of acetylene black, carbon nano tubes, carbon nano wires, carbon black KS-6 and carbon black SP; the binder is polyvinylidene fluoride or polytetrafluoroethylene;
(3) and (3) spin-coating 0.1-1 mol/L isopropanol solution of benzotriazole on the surface of the electrode piece in the step (2), and drying to obtain the anticorrosive Ti-based anode electrode material.
2. The corrosion-resistant Ti-based anode electrode material according to claim 1, wherein: in the step (1), the volume of the solvent A is 0.5-3 mL/mg based on the mass of the graphene oxide.
3. The corrosion-resistant Ti-based anode electrode material according to claim 1, wherein: in the step (1), the inorganic acid is one or a mixture of two of hydrogen chloride, sulfuric acid, phosphoric acid and nitric acid.
4. The corrosion-resistant Ti-based anode electrode material according to claim 1, wherein: in the step (1), the organic acid is one or a mixture of two of acetic acid, tartaric acid, citric acid, oxalic acid and sulfamic acid.
5. The corrosion-resistant Ti-based anode electrode material according to claim 1, wherein: the free radical initiator in the step (1) is one or a mixture of more than two of sodium persulfate, potassium persulfate, ammonium persulfate, azobisisobutyronitrile, benzoyl peroxide, tert-butyl peroxybenzoate and tert-butyl hydroperoxide.
6. The corrosion-resistant Ti-based anode electrode material according to claim 1, wherein the post-treatment in the step (1) is: and centrifuging the reaction solution, taking the precipitate, centrifuging and washing the precipitate with pure water, and drying the precipitate in vacuum at the temperature of 30-80 ℃ to obtain the polyaniline-graphene oxide composite material.
7. The corrosion-resistant Ti-based anode electrode material according to claim 1, wherein: in the step (2), the solvent B is one or a mixture of more than two of water, ethanol, methanol, n-butanol and isopropanol.
8. The corrosion-resistant Ti-based anode electrode material according to claim 1, wherein: the volume of the solvent B in the step (2) is 20-60 mL/g based on the mass of the conductive agent.
9. The corrosion-resistant Ti-based anode electrode material according to claim 1, wherein: the spin-coating speed in the step (3) is 2000-5000 rpm, and the spin-coating time is 20-60 s.
10. Use of the corrosion-resistant Ti-based anode electrode material of claim 1 for reducing nitrate nitrogen.
CN202111621188.8A 2021-12-28 2021-12-28 Anti-corrosion Ti-based anode electrode material and preparation method and application thereof Pending CN114105260A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101527202A (en) * 2009-04-24 2009-09-09 南京理工大学 Oxidized grapheme/polyaniline super capacitor composite electrode material and preparation method and application thereof
CN105513818A (en) * 2015-12-28 2016-04-20 宁国市龙晟柔性储能材料科技有限公司 Preparation method of graphene-polyaniline supercapacitor electrode material
CN108163934A (en) * 2018-02-27 2018-06-15 湖北君集水处理有限公司 A kind of system and method that electrolysis nitrogen is carried out using rhodium electrode
CN108597890A (en) * 2018-04-23 2018-09-28 上海应用技术大学 A kind of polyaniline/graphene/nickel manganese hydroxide electrode material for super capacitor and preparation method thereof
CN111106245A (en) * 2019-12-03 2020-05-05 华东师范大学 Perovskite battery for inhibiting electrode corrosion and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101527202A (en) * 2009-04-24 2009-09-09 南京理工大学 Oxidized grapheme/polyaniline super capacitor composite electrode material and preparation method and application thereof
CN105513818A (en) * 2015-12-28 2016-04-20 宁国市龙晟柔性储能材料科技有限公司 Preparation method of graphene-polyaniline supercapacitor electrode material
CN108163934A (en) * 2018-02-27 2018-06-15 湖北君集水处理有限公司 A kind of system and method that electrolysis nitrogen is carried out using rhodium electrode
CN108597890A (en) * 2018-04-23 2018-09-28 上海应用技术大学 A kind of polyaniline/graphene/nickel manganese hydroxide electrode material for super capacitor and preparation method thereof
CN111106245A (en) * 2019-12-03 2020-05-05 华东师范大学 Perovskite battery for inhibiting electrode corrosion and preparation method thereof

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