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Preparation method and application of high-activity stable anode material

A stable anode and high-activity technology, applied in chemical instruments and methods, water/sludge/sewage treatment, water/sewage treatment, etc., can solve the problems of lack of reliable solutions and achieve good reusability and efficient generation The effect of enhanced capacity and wide electrochemical window

Pending Publication Date: 2022-06-28
苏州仕净科技股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the electrode is the core of the electrocatalytic reaction system, and the research and development of highly active, stable, and reusable anode materials has become the key to this technology, but there is currently a lack of reliable solutions

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  • Preparation method and application of high-activity stable anode material
  • Preparation method and application of high-activity stable anode material
  • Preparation method and application of high-activity stable anode material

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preparation example Construction

[0042] A preparation method of a highly active and stable anode material of the present invention, refer to figure 1 , the method includes the following steps:

[0043] 1) Anode titanium substrate pretreatment: the titanium substrate is subjected to a series of pretreatments such as grinding, organic solvent cleaning, degreasing, and etching treatment;

[0044] 2) Preparation of coating solution: the coating solution includes Sb ion, Sn ion and hydroxyimidazole ionic liquid, and the specific method is:

[0045] 2-1) SnCl 4 ·5H 2 O and Sb 2 O 3 Completely dissolve with a small amount of hydrochloric acid, and then prepare an anhydrous ethanol coating solution with a Sn ion concentration of 1.0 to 1.5 mol / L and a molar ratio of Sn:Sb=100:10 to 100:5;

[0046] 2-2) Add an appropriate amount of polyethylene glycol to the anhydrous ethanol coating solution and mix evenly, then add hydroxyimidazole ionic liquid, and mix evenly to obtain a coating solution. The content of the hy...

Embodiment 1

[0057] A method for preparing a highly active and stable anode material, comprising the following steps:

[0058] 1) Anode titanium substrate pretreatment: the titanium substrate is subjected to a series of pretreatments such as grinding, organic solvent cleaning, degreasing, and etching treatment;

[0059] 2) Prepare the coating solution:

[0060] 2-1) SnCl 4 ·5H 2 O and Sb 2 O 3 Completely dissolve with a small amount of hydrochloric acid, and then prepare an anhydrous ethanol coating solution with a Sn ion concentration of 1.0 mol / L and a molar ratio of Sn:Sb=100:5;

[0061] 2-2) Add an appropriate amount of polyethylene glycol to the anhydrous ethanol coating solution and mix well, and then add 1-butyl-3-ethylhydroxyimidazolium methanesulfonate ionic liquid [OHpbim][CH 3 SO 3 ], and evenly mixed to obtain a coating solution, the content of 1-butyl-3-ethylhydroxyimidazolium methanesulfonate ionic liquid in the coating solution is 40 mg / L.

[0062] 3) Apply the coatin...

Embodiment 2

[0067] A method for preparing a highly active and stable anode material, comprising the following steps:

[0068] 1) Anode titanium substrate pretreatment: the titanium substrate is subjected to a series of pretreatments such as grinding, organic solvent cleaning, degreasing, and etching treatment;

[0069] 2) Prepare the coating solution:

[0070] 2-1) SnCl 4 ·5H 2 O and Sb 2 O 3 Completely dissolve with a small amount of hydrochloric acid, and then prepare an anhydrous ethanol coating solution with a Sn ion concentration of 1.0 mol / L and a molar ratio of Sn:Sb=100:10;

[0071] 2-2) Add an appropriate amount of polyethylene glycol to the anhydrous ethanol coating solution and mix well, and then add 1-butyl-3-ethylhydroxyimidazolium methanesulfonate ionic liquid [OHpbim][CH 3 SO 3], and evenly mixed to obtain a coating solution, the content of 1-butyl-3-ethylhydroxyimidazolium methanesulfonate ionic liquid in the coating solution is 40 mg / L.

[0072] 3) Apply the coatin...

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Abstract

The invention discloses a preparation method and application of a high-activity stable anode material. The method comprises the following steps: 1) pretreating an anode matrix; 2) preparing a coating solution, wherein the coating solution comprises Sb ions, Sn ions and hydroxyl imidazole ionic liquid; and 3) uniformly brushing the prepared coating solution on the surface of the pretreated anode matrix, heating to volatilize the surface solvent, then carrying out thermal oxidation at 300-400 DEG C, and cooling to obtain the high-activity stable anode material. On the basis of a coating thermal decomposition method, a high-activity stable anode material is prepared through a high-performance ionic liquid modified SnO2 electrode, Sb and imidazole ionic liquid are adopted for doping modification, the obtained anode electrode shows excellent electrochemical performance and high OH free radical generation capacity, the anode electrode is applied to oxidative degradation of coking wastewater, and the electrochemical performance of the anode electrode is greatly improved. Good electrooxidation degradation performance is shown.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a preparation method and application of a highly active and stable anode material. Background technique [0002] The entire coking industry chain process, including coke refining, gas purification and coking product recovery process, will produce a large amount of coking wastewater. Coking wastewater is characterized by high concentration of organic matter and very complex composition, among which the content of phenol and its derivatives usually accounts for more than half, and also contains benzene and its derivatives, polycyclic and heterocyclic organic compounds, etc., so it is used as a kind of wastewater. Industrial wastewater containing a variety of refractory pollutants has attracted much attention in the field of industrial water treatment. At present, domestic coking wastewater is still mainly treated by biochemical methods, but the degradation efficiency ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/461C02F1/72C02F101/30
CPCC02F1/46109C02F1/4672C02F2101/30C02F2001/46142Y02E60/10
Inventor 董仕宏吴倩辛丰何文
Owner 苏州仕净科技股份有限公司
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