Preparation method of high-conductivity alloy catalytic electrode and prepared electrode

A catalytic electrode, high conductivity technology, applied in the field of environmental catalysis and electrochemistry, can solve the problems of high contact resistance between the coating and the substrate, excessive thermal stress of the coating, peeling of the surface coating, etc., to overcome the current efficiency and electrical energy. Low efficiency, long service life, organic reduction effect

Pending Publication Date: 2021-11-30
安徽康菲尔检测科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention lies in the problems of high cell voltage, low current efficiency, high contact resistance between the coating and the substrate, and excessive thermal stress between the coatings in the electrocatalysis process, resulting in peeling off of the surface coating.

Method used

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  • Preparation method of high-conductivity alloy catalytic electrode and prepared electrode
  • Preparation method of high-conductivity alloy catalytic electrode and prepared electrode
  • Preparation method of high-conductivity alloy catalytic electrode and prepared electrode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0087] see figure 1 , the preparation process of this embodiment includes:

[0088] 1) Preparation of highly conductive matrix material

[0089] 11) Put the base material in 3×10 5 Under Pa air pressure, use 120μm particle size corundum for sandblasting to form a certain rough surface on the surface, rinse with deionized water and ultrasonic for 30min, and dry it for later use;

[0090] 12) Cook the polished base material in a 10% NaOH (KOH) solution for 1 hour, perform deoiling treatment, wash it clean, and dry it at room temperature for later use;

[0091] 13) Cook the base material treated in step 12) in 10% oxalic acid or hydrochloric acid or sulfuric acid or nitric acid solution for 1 hour, perform corrosion treatment, and rinse;

[0092] 14) The base material processed in step 13) is heated in N 2 Heating is carried out in the atmosphere at a heating temperature of 650° C. for 2 hours to form an anti-corrosion conductive film layer.

[0093] 2) Preparation of highly...

Embodiment 2

[0121] see figure 2 , the preparation coating structure of the present embodiment comprises:

[0122] 1) Preparation of highly conductive matrix material

[0123] 11) Place the base material at 3.5×10 5Under Pa air pressure, use 1350μm particle size corundum for sandblasting to form a certain rough surface on the surface, wash it clean, and dry it for later use;

[0124] 12) Cook the polished base material in a 15% NaOH (KOH) solution for 1.5 hours, perform deoiling treatment, wash it clean, and dry it at room temperature for later use;

[0125] 13) Cook the base material treated in step 12) in 15% oxalic acid solution for 1.5 hours, perform corrosion treatment, and rinse;

[0126] 14) The base material processed in step 13) is heated in N 2 Heating is carried out in the atmosphere at a heating temperature of 500° C. for 1.5 hours to form an anti-corrosion conductive film layer.

[0127] 2) Preparation of highly conductive base layer

[0128] 21) Electrodeposition of co...

Embodiment 3

[0153] see Figure 6 , the coating sewage degradation activity of the preparation of the present embodiment comprises:

[0154] 1) Preparation of highly conductive matrix material

[0155] 11) Put the base material in 4×10 5 Under Pa air pressure, use 150μm particle size corundum for sandblasting treatment to form a certain rough surface on the surface, wash it clean, and dry it for later use;

[0156] 12) Cook the polished base material in a 20% NaOH (KOH) solution for 2 hours, perform deoiling treatment, wash it clean, and dry it at room temperature for later use;

[0157] 13) Cook the base material treated in step 12) in 20% oxalic acid or hydrochloric acid or sulfuric acid or nitric acid solution for 2 hours, perform corrosion treatment, and rinse;

[0158] 14) The base material processed in step 13) is heated in N 2 Heating is carried out in the atmosphere at a heating temperature of 300° C. for 1 hour to form an anti-corrosion conductive film layer.

[0159] 2) Prep...

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Abstract

The invention relates to a preparation method of a high-conductivity alloy catalytic electrode and a prepared electrode, and the preparation method comprises the following steps: treating a titanium-based material or other valve-type metal by adopting a conductive substrate pretreatment method, washing the titanium-based material or other valve-type metal with deionized water, performing ultrasonic treatment, and performing airing for later use; carrying out nano electro-deposition on the prepared conductive base material, and then conducting cleaning and airing for later use; using the obtained conductive base layer to prepare a conductive middle layer, wherein rare earth elements are doped in the conductive middle layer; and continuously manufacturing a catalyst layer on the obtained conductive middle layer, and conducting roasting for multiple times to obtain the alloy electrode with high conductivity, stability and catalytic activity. In the manufacturing process, base material electric conduction treatment is adopted, the base layer is made into a metal material with good electric conduction and thermal stress by adopting a nano electro-deposition technology, and the catalytic layer is made into a compact alloy material with a long life cycle by adopting a thermal decomposition method; and in addition, a multi-layer composite sintering and electro-deposition method is adopted, so that the base material forms a semiconductor oxide such as TiO2 and loses efficacy.

Description

technical field [0001] The invention provides a method for preparing a high-conductivity alloy catalytic electrode, which belongs to the field of environmental catalysis and electrochemistry. Background technique [0002] Conductive catalytic electrodes are often used in the chlor-alkali industry, battery industry, electrolytic metallurgy, and environmental electrocatalysis industries. At present, the electrode materials used in the battery industry and environmental electrocatalysis are mostly valve-type metal alloy electrodes because of their good catalytic performance and stability. And has been widely used. However, in practice, it has been found that the catalytic plate of the valve-type metal substrate will have low conductivity stability during use, and the contact resistance will increase significantly during use. The direct phenomenon is that the temperature of the electrolyte increases. In turn, the catalytic system is unstable; in addition, it also causes the ele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/461C02F101/30
CPCC02F1/46109C02F2001/46142C02F2101/30
Inventor 彭旭王光应潘有春魏彤
Owner 安徽康菲尔检测科技有限公司
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