Preparation method of metal oxide coating anode

A technology of oxide coating and anode, which is applied in the field of electrochemistry, can solve the problems of changing the living environment of marine organisms and the adverse effects of the marine environment, and achieve the effects of long service life, environmental friendliness and good stability

Active Publication Date: 2015-08-19
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, the sewage produced by working and living on marine facilities such as ships, oil platforms, and islands contains a large amount of organic matter. These organic matters cause eutrophication, change the living environment of marine organisms, and have adverse effects on the marine environment.

Method used

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  • Preparation method of metal oxide coating anode
  • Preparation method of metal oxide coating anode
  • Preparation method of metal oxide coating anode

Examples

Experimental program
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Effect test

Embodiment 1

[0017] The preparation method of the metal oxide coated anode involved in this embodiment includes three steps of substrate pretreatment, coating liquid preparation and coating anode preparation:

[0018] (1) Substrate pretreatment: select TA2 industrial pure titanium plate with a length, width and thickness of 140mm×110mm×3mm and a purity of 99% as the substrate material, and use corundum with a particle size of 120 μm to sandblast the titanium plate substrate and rinse it with distilled water to remove it Sand grains and metal shavings remaining on the surface of the substrate, put the titanium plate substrate into an acetone solution for degreasing, place it in an oxalic acid aqueous solution with a concentration of 10% by mass and a temperature of 90°C for 1 hour, and wait for the surface of the substrate to When the roughness Ra is 3.5 μm, take it out, clean it ultrasonically with distilled water, and then clean it with industrial alcohol for 2-3 times. After drying the su...

Embodiment 2

[0025] The preparation method of the metal oxide coated anode involved in this embodiment includes three steps of substrate pretreatment, coating liquid preparation and coating anode preparation:

[0026] (1) Substrate pretreatment: select TA2 industrial pure titanium plate of 140mm×110mm×3mm as the substrate material, use corundum with a particle size of 120 μm to sandblast the titanium plate substrate and rinse with distilled water to remove the sand particles and metal remaining on the substrate surface Chips, put the titanium plate substrate into acetone solution (concentration parameter) to remove oil, then place it in an oxalic acid aqueous solution with a concentration of 10% by mass and a temperature of 100°C for acid etching for 1 hour, until the surface roughness Ra of the substrate is 1.5 μm Take it out and clean it ultrasonically with distilled water, and then clean it with industrial alcohol for 2-3 times. After drying the substrate, immerse it in an anhydrous alco...

Embodiment 3

[0030] The preparation method of the metal oxide coated anode involved in this embodiment includes three steps of substrate pretreatment, coating liquid preparation and coating anode preparation:

[0031] (1) Substrate pretreatment: select TA2 industrial pure titanium plate of 140mm×110mm×3mm as the substrate material, use corundum with a particle size of 120 μm to sandblast the titanium plate substrate and rinse with distilled water to remove the sand particles and metal remaining on the substrate surface Chips, put the titanium plate substrate into acetone solution (concentration parameter) to remove oil, then place it in an oxalic acid aqueous solution with a concentration of 10% by mass and a temperature of 92°C for acid etching for 1 hour, until the surface roughness Ra of the substrate is 2 μm Take it out and ultrasonically clean it with distilled water, and then clean it with industrial alcohol for 2-3 times. After drying the substrate, immerse it in an anhydrous alcohol...

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Abstract

The invention belongs to the technical field of electrochemistry, and relates to a preparation method of a metal oxide coating anode. The anode prepared under the assistance of normal pressure plasma is suitable for degrading seawater sewage by electrolysis, preventing marine organisms from damage, implementing cathode protection and other electrochemical engineering occasions. The preparation method comprises the steps of substrate pretreatment, coating solution preparation and coating anode preparation. The method specifically comprises the following steps: adjusting a plasma discharge current and a jet gun motion speed to set values, jetting the prepared coating solution on the pretreated substrate surface in a coverage mode, drying the substrate in a drying box to form a coating on the substrate surface, and oxidizing the coating surface by plasma jet discharge; and repeating the jetting, drying and plasma oxidization steps 6-8 times, and sintering the substrate in a sintering furnace, thereby completing the coating anode preparation. The method has the advantages of simple preparation technique, reliable principle, low energy consumption and high efficiency. The prepared anode has the advantages of favorable stability, long service life and environment friendliness.

Description

Technical field: [0001] The invention belongs to the technical field of electrochemistry, and relates to a method for preparing a metal oxide coating anode. The anode prepared with the aid of atmospheric pressure plasma is suitable for electrochemical engineering occasions such as electrolysis of seawater sewage degradation, prevention of marine biofouling, and cathodic protection. . Background technique: [0002] At present, the sewage produced by working and living on marine facilities such as ships, oil platforms, and islands contains a large amount of organic matter. These organic matters cause eutrophication, change the living environment of marine organisms, and have adverse effects on the marine environment. In the prior art, the electrochemical oxidation method with multi-functionality, high flexibility, no pollution or less pollution, easy control and economy is generally used as the means of sewage treatment; the key to the treatment of domestic sewage by this elec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C20/08
Inventor 刘峰辛永磊李相波许立坤
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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