A kind of preparation method of high-efficiency electrode plate

An electrode plate and high-efficiency technology, applied in the field of electrode plates, can solve the problems of purification, decreased chlorine production efficiency, inability to poison electrodes, etc., and achieve the effects of improving oxygen evolution potential, prolonging service life, slowing diffusion and penetration

Active Publication Date: 2022-04-22
宜兴艾科森生态环卫设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Sewage treatment in ecological sanitation equipment is usually dominated by the traditional A / O process, and there are not many studies on electrochemical treatment of sewage. However, the efficiency of chlorine production will decrease with the extension of use time during the use of conventional active coating electrodes. In the case of rapid decline, although the coating loss rate is not large in the short term, the poisoning effect of sewage on the active coating prevents the electrode from purifying the water quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: a kind of preparation method of high-efficiency electrode plate,

[0020] (1) Preparation of base material: Titanium plate made of TA1 material is used as the base material, and the base material is degreasing;

[0021] (2) Surface treatment of the substrate: sand wash the degreasing substrate first, use 24-mesh white corundum sand for sand washing, clean and dry after sand washing, and then pickle and pickle after cleaning and drying. When pickling with 10% oxalic acid solution for 60min, pickling and then cleaning and drying to obtain the pretreated substrate;

[0022] (3) Coating the base layer: Brush the precursor solution A on the surface of the pretreated substrate, the precursor solution A is metal Ir and Ta, the molar ratio of Ir:Ta is 1.8:1, and the brushing amount is 1g / m2 2 , after brushing, place it in a high-temperature furnace and sinter to obtain a base substrate after being dried at 60 ° C, the sintering temperature in the high-temperature...

Embodiment 2

[0026] Embodiment 2: a kind of preparation method of high-efficiency electrode plate,

[0027] (1) Preparation of the base material: The titanium plate made of TA2 material is used as the base material, and the base material is degreasing;

[0028] (2) Surface treatment of the substrate: sand wash the degreasing substrate first, use 24-mesh white corundum sand for sand washing, clean and dry after sand washing, and then pickle and pickle after cleaning and drying. When pickling with 12% oxalic acid solution for 45min, pickling and then cleaning and drying to obtain the pretreated substrate;

[0029] (3) Coating the base layer: Brush the precursor liquid A on the surface of the pretreated substrate, the precursor liquid A is metal Ir and Ta, the molar ratio of Ir:Ta is 2.2:1, and the brushing amount is 3g / m2 2 , after brushing, place it in a high-temperature furnace to sinter and obtain the base substrate after being dried at 80 ° C, the sintering temperature in the high-tempe...

Embodiment 3

[0033] Embodiment 3: a kind of preparation method of high-efficiency electrode plate,

[0034] (1) Preparation of the base material: The titanium plate made of TA2 material is used as the base material, and the base material is degreasing;

[0035] (2) Surface treatment of the substrate: sand wash the degreasing substrate first, use 24-mesh white corundum sand for sand washing, clean and dry after sand washing, and then pickle and pickle after cleaning and drying. When pickling with 15% oxalic acid solution for 30~60min, pickling and then cleaning and drying to obtain the pretreated substrate;

[0036] (3) Coating the base layer: Brush the precursor liquid A on the surface of the pretreated substrate, the precursor liquid A is metal Ir and Ta, the molar ratio of Ir:Ta is 2.6:1, and the brushing amount is 5g / m2 2 , after brushing, place it in a high-temperature furnace to sinter and obtain the base substrate after being dried at 100 ° C, the sintering temperature in the high-t...

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Abstract

The invention discloses a method for preparing a high-efficiency electrode plate, which comprises the following steps: (1) preparation of a base material; (2) surface treatment of the base material; (3) coating of a base layer; (4) coating of an intermediate layer; (5) Coating the surface layer; (6) Sintering. In the present invention, the precursor solution A is used as the base layer to seal the base material, effectively improving the bonding force between the active components of the base layer and the base material, enhancing the electrical conductivity and passivation resistance of the base material, and making it Extend the life of the electrodes. Precursor solution B is used as the intermediate layer. On the one hand, the cracks of the coating are reduced, and the diffusion and penetration of oxygen generated during use into the substrate is further slowed down, thereby reducing or hindering the formation of a high-resistance layer; Oxygen evolution potential. The use of precursor solution C as the surface layer can effectively avoid the poisoning effect of sewage on the active coating.

Description

technical field [0001] The invention relates to the field of electrode plates, in particular to a preparation method of a high-efficiency electrode plate. Background technique [0002] The sewage treatment in ecological sanitation equipment is usually based on the traditional A / O process, and there are not many studies on the electrochemical treatment of sewage, while the conventional active coating electrode will appear in the use process. In the case of rapid decline, although the coating loss rate is not large in the short term, the poisoning effect of sewage on the active coating makes the electrode unable to purify the water quality. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a preparation method of a high-efficiency electrode plate. [0004] The innovation of the present invention is that in the present invention, the precursor liquid A is used as the base layer to seal the base material, which effectively improves the bondi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25B11/00C02F1/461
CPCC02F1/46109C02F2001/46138C02F2001/46142
Inventor 徐霞吴丽云潘准峰
Owner 宜兴艾科森生态环卫设备有限公司
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