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A preparation method of simplified energy-saving catalytic plate

An energy-saving, polar plate technology, applied in chemical instruments and methods, electrodes, chemical industry, etc., can solve the problems of low coating adhesion, low catalytic efficiency, low production efficiency, etc., with fast speed and simple preparation method , the effect of improving efficiency

Inactive Publication Date: 2020-09-15
HIGH TECH RES INST NANJING UNIV LIANYUNGANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are various kinds of catalytic plates, and the preparation methods are also various, but the general steps are generally prepared by selecting the substrate, preparing the coating solution, immersing the substrate in the coating solution, coating heat treatment, etc., but in the preparation There is a big defect in the process, that is, when the substrate is immersed in the coating solution and then taken out for coating heat treatment, the coating solution will continuously flow down from the substrate, resulting in low adhesion of the coating, which needs to be repeated. Multiple times of substrate immersion-coating heat treatment steps lead to low production efficiency and energy consumption. Not only that, when the wastewater is catalyzed by the electrode plate, there is often a loud catalytic sound, and the catalytic efficiency is low.

Method used

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Examples

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Comparison scheme
Effect test

Embodiment 1

[0023] A method for preparing a simplified energy-saving catalytic pole plate, the steps are as follows: 1. Pretreatment: firstly, the titanium substrate is polished, and then dipped in a chemical solution, which may be NaOH solution. 2. Preparation of coating solution: prepare a coating solution containing Sn, Sb, and Ce, the molar concentration ratio of Sn, Sb, and Ce can be controlled at 10:1:3, and the pH value of the coating solution is controlled at 1. 3. Preparation of preparation liquid: get the powder of epoxy resin, acetone and nickel foam into water and stir to form a preparation liquid. Control the weight parts of each component and water in the preparation liquid to be epoxy resin 0.8, acetone 1 , nickel foam 2, water 5.8, control the mass ratio of the preparation liquid and the coating liquid to 1:12, and the stirring time of epoxy resin, acetone, foam nickel powder into the water is 20min. 4. Preparation of mixed solution: Mix and stir the above-mentioned coatin...

Embodiment 2

[0025] A method for preparing a simplified energy-saving catalytic pole plate, the steps are as follows: 1. Pretreatment: firstly, the titanium substrate is polished, and then dipped in a chemical solution, which may be NaOH solution. 2. Preparation of coating solution: Prepare a coating solution containing Sn, Sb, and Ce. The molar concentration ratio of Sn, Sb, and Ce can be controlled at 10:1:3, and the pH value of the coating solution is controlled at 2. Three, prepare preparation liquid: get the powder material of epoxy resin, acetone, nickel foam three and drop into water and stir, form preparation liquid, control each component and the weight part of water in the preparation liquid to be epoxy resin 1.1, acetone 0.9 in turn , foamed nickel 2.1, water 6.1, control the mass ratio of the preparation liquid and the coating liquid to 1:11, the stirring time of epoxy resin, acetone, and foamed nickel powder into the water is 24min. 4. Preparation of mixed solution: Mix and st...

Embodiment 3

[0027] A method for preparing a simplified energy-saving catalytic pole plate, the steps are as follows: 1. Pretreatment: firstly, the titanium substrate is polished, and then dipped in a chemical solution, which may be NaOH solution. 2. Preparation of coating solution: Prepare a coating solution containing Sn, Sb, and Ce. The molar concentration ratio of Sn, Sb, and Ce can be controlled at 10:1:3, and the pH value of the coating solution is controlled at 3. 3. Preparation of preparation solution: put the powder of epoxy resin, acetone and nickel foam into water and stir to form a preparation solution, and control the weight parts of each component and water in the preparation solution to be epoxy resin 1, acetone 1 , nickel foam 2, water 6, control the mass ratio of the preparation solution and the coating solution to 1:10, and the stirring time of epoxy resin, acetone, and nickel foam into the water is 25 minutes. 4. Preparation of mixed solution: Mix and stir the above-ment...

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PUM

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Abstract

The invention discloses a preparation method for a simplified energy-saving catalyzing polar plate. The method comprises the following steps: 1) pre-treating; 2) preparing a coating solution; 3) preparing a modulating solution; 4) preparing a mixing solution; and 5) thermally treating the coating. According to the invention, the modulating solution is added and epoxy resin, acetone and foamed nickel are mutually harmonious allocated, so that the whole coating solution has the characteristics of viscosity, dispersity, adsorbability and high surface energy, the adhesive rate of the coating solution on a substrate is high, the catalyzing efficiency is guaranteed, the preparation method is simplified, the energy is saved and the emission is reduced.

Description

technical field [0001] The invention relates to the field of wastewater catalysis, in particular to a preparation method of a simplified energy-saving catalytic plate. Background technique [0002] At present, in terms of research on high-efficiency electrocatalytic electrodes, since H. Beer developed the DSA electrode, it has rapidly attracted attention because of its good stability and catalytic activity, and has been widely used in many fields, such as Ti-based RuO 2 coating, IrO 2 The coating is used in the chlor-alkali industry, sulfuric acid industry, etc. S.Stucki et al. developed coated SnO 2 -Sb 2 o 5 The titanium-based electrode obtained a higher oxygen evolution potential. B.Correa-Loza found that coating IrO on titanium base 2 , made of SnO 2 -Sb 2 o 5 / IrO 2 / Ti electrode can make its life can be greatly increased. Starting from the perspective of anode materials, Comninells proposed two different direct oxidation pathways, and concluded that to impro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25B11/10C02F101/34
CPCC02F1/4672C02F2001/46142C02F2101/345Y02P20/10
Inventor 徐根华
Owner HIGH TECH RES INST NANJING UNIV LIANYUNGANG