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A kind of preparation method of carbon fiber titanium base lead dioxide electrode

A lead dioxide and carbon fiber technology, applied in electrodes, electrolysis components, electrolysis process, etc., can solve the problems of low current efficiency, anode failure, hindering normal production, etc., and achieve the effect of strengthening life and improving corrosion resistance.

Active Publication Date: 2022-05-24
宝鸡钛普锐斯钛阳极科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] A lot of research has been done on the requirements of anode materials, but it is found that traditional lead and lead-based alloys have problems such as low current efficiency, easy dissolution of the anode, and lead pollution of the zinc coating.
During the long-term electrolysis of metal-coated electrodes such as stainless steel and aluminum, new ecological oxygen atoms and acidic liquids will diffuse to the substrate surface along the pores of the coating, forming an oxide insulating layer or etching the substrate, resulting in anode failure
The short life of traditional stainless steel anodes hampers normal production

Method used

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  • A kind of preparation method of carbon fiber titanium base lead dioxide electrode
  • A kind of preparation method of carbon fiber titanium base lead dioxide electrode
  • A kind of preparation method of carbon fiber titanium base lead dioxide electrode

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Effect test

Embodiment 1

[0031] The preparation method of the carbon fiber titanium-based lead dioxide electrode, the specific steps include:

[0032] Step 1. The carbon fiber cloth is subjected to hot air oxidation and liquid phase oxidation to obtain a treated carbon fiber cloth; wherein the carbon fiber cloth is oxidized by hot air at a temperature of 450 ° C for 30 minutes; the carbon fiber after hot air oxidation is arranged in a volume ratio of 2:1. In the mixed acid solution of nitric acid and concentrated sulfuric acid, the temperature is 80 ℃ of liquid phase oxidation treatment for 30min; wherein the concentration of concentrated nitric acid mass percentage is 65~68%, and the mass percentage concentration of concentrated sulfuric acid is 95~98%;

[0033] Step 2. Cut the carbon fiber cloth processed in step 1 into 2×3cm 2 , after cutting, the carbon fiber cloth is superimposed layer by layer, and the layers are bonded with conductive resin glue, and the layers are bonded to make a 3mm carbon f...

Embodiment 2

[0041] The preparation method of the carbon fiber titanium-based lead dioxide electrode comprises the following specific steps:

[0042]Step 1. The carbon fiber cloth is subjected to hot air oxidation and liquid phase oxidation to obtain a treated carbon fiber cloth; wherein the carbon fiber cloth is oxidized by hot air at a temperature of 450 ° C for 30 minutes; the carbon fiber after hot air oxidation is arranged in a volume ratio of 4:1. In the mixed acid solution of nitric acid and concentrated sulfuric acid, the temperature is 80 ℃ of liquid phase oxidation treatment for 30min; wherein the concentration of concentrated nitric acid mass percentage is 65~68%, and the mass percentage concentration of concentrated sulfuric acid is 95~98%;

[0043] Step 2. Cut the carbon fiber cloth processed in step 1 into 2×3cm 2 , After cutting, the carbon fiber cloth is superimposed layer by layer, and the layers are bonded with conductive resin glue, and the layers are bonded to make a 5m...

Embodiment 3

[0050] The preparation method of the carbon fiber titanium-based lead dioxide electrode comprises the following specific steps:

[0051] Step 1. The carbon fiber cloth is subjected to hot air oxidation and liquid phase oxidation to obtain a treated carbon fiber cloth; wherein the carbon fiber cloth is oxidized by hot air at a temperature of 450 ° C for 30 minutes; the carbon fiber after hot air oxidation is arranged in a volume ratio of 3:1. In the mixed acid solution of nitric acid and concentrated sulfuric acid, the temperature is 80 ℃ of liquid phase oxidation treatment for 30min; wherein the concentration of concentrated nitric acid mass percentage is 65~68%, and the mass percentage concentration of concentrated sulfuric acid is 95~98%;

[0052] Step 2. Cut the carbon fiber cloth processed in step 1 into 2×3cm 2 , After cutting, the carbon fiber cloth is superimposed layer by layer, and the layers are bonded with conductive resin glue, and the layers are bonded to make a 4...

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Abstract

The invention relates to a preparation method of a carbon fiber titanium-based lead dioxide electrode, belonging to the technical field of preparation methods of anode materials. The carbon fiber cloth is processed by hot air oxidation and liquid phase oxidation; the treated carbon fiber cloth is cut into 2×3cm 2 After cutting, the carbon fiber cloth is superimposed layer by layer with conductive resin glue, and the multi-layers are bonded to form a fiber board A, which is dried for later use; the obtained carbon fiber board A is polished with coarse to fine sandpaper, then rinsed, washed, and dried for later use. It is carbon fiber plate B; carbon fiber plate B is used as cathode, titanium sheet is used as anode, electrodeposited in electrolyte A, after the deposition is completed, the cathode is rinsed and dried to obtain carbon fiber titanium C; carbon fiber titanium C is used as anode, stainless steel is used as cathode, lead nitrate Electrodeposition is carried out for the electrolyte, and a carbon fiber titanium-based lead dioxide electrode is prepared. The carbon fiber titanium-based lead dioxide electrode can reduce the quality and resistivity of the anode electrode, improve the corrosion resistance performance, and prolong the service life of the electrode.

Description

technical field [0001] The invention relates to a preparation method of a carbon fiber titanium-based lead dioxide electrode, and belongs to the technical field of preparation methods of anode materials. Background technique [0002] Zinc electrodeposition is a key step in wet electrolysis and the core content of the electrochemical reaction system. The selection and preparation of electrode substrate materials is an important problem in the wet electrolysis industry and the field of electrochemistry. Because anode materials are required to have good electrical conductivity, mechanical strength, processability, electrocatalytic activity and corrosion resistance; can work in environments with strong oxidizing properties and high current density; long service life and low cost. [0003] In response to the requirements of anode materials, people have conducted a lot of research, but found that traditional lead and lead-based alloys have problems such as low current efficiency, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25C7/02C25C1/16
CPCC25C7/02C25C1/16
Inventor 刘建华胡长宇许磊张蔓赵国振
Owner 宝鸡钛普锐斯钛阳极科技有限公司