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A Ti-based SB-SNO doped with Gd 2 Catalytic pole plate and preparation method thereof

A technology of gd-sb-sno2 and sb-sno2, which is applied in the field of structure and preparation of catalytic plates, can solve the problems of low catalytic efficiency and low oxygen evolution potential, so as to increase the oxygen evolution potential, increase the catalytic area, and improve the catalytic performance. efficiency effect

Active Publication Date: 2016-09-28
南京华创环境技术研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies of the above-mentioned prior art, the problems solved by the present invention are: low catalytic efficiency, low oxygen evolution potential

Method used

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  • A Ti-based SB-SNO doped with Gd <sub>2</sub> Catalytic pole plate and preparation method thereof
  • A Ti-based SB-SNO doped with Gd <sub>2</sub> Catalytic pole plate and preparation method thereof

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Embodiment 1

[0020] Such as figure 1 As shown, a Gd-doped Ti-based Sb-SnO 2 Catalytic plate, including titanium substrate 1, Gd-Sb-SnO 2 coating. Gd-Sb-SnO 2 Coated by Sb-SnO 2 coating and Gd coating composition. The titanium base 1 has a cylindrical structure. A plurality of alternate annular grooves 11 are provided on the side of the titanium base 1 . Gd-Sb-SnO 2 The coating wraps around the outside of the titanium base 1 . Sb-SnO 2 The mass fraction ratio of coating and Gd coating is: 30:1. There are four annular grooves 11 .

[0021] A Gd-doped Ti-based Sb-SnO 2 The preparation method of the catalytic pole plate is as follows: 1. Firstly, the titanium substrate is polished, and then soaked with a chemical solution. 2. Prepare the coating solution containing Sn, Sb and Gd. 3. Seal multiple annular grooves on the titanium substrate with multiple heat-resistant rings. 4. Immerse the titanium substrate 1 treated in step 3 in the coating liquid in step 2, and then perform coat...

Embodiment 2

[0023] Such as figure 1 As shown, a Gd-doped Ti-based Sb-SnO 2 Catalytic plate, including titanium substrate 1, Gd-Sb-SnO 2 coating. Gd-Sb-SnO 2 Coated by Sb-SnO 2 coating and Gd coating composition. The titanium base 1 has a cylindrical structure. A plurality of alternate annular grooves 11 are provided on the side of the titanium base 1 . Gd-Sb-SnO 2 The coating wraps around the outside of the titanium base. Sb-SnO 2 The mass fraction ratio of coating and Gd coating is: 50:1. There are 6 annular grooves.

[0024] A Gd-doped Ti-based Sb-SnO 2 The preparation method of the catalytic pole plate is as follows: 1. Firstly, the titanium substrate is polished, and then soaked with a chemical solution. 2. Prepare the coating solution containing Sn, Sb and Gd. 3. Seal multiple annular grooves on the titanium substrate with multiple heat-resistant rings. 4. Immerse the titanium substrate treated in step 3 in the coating solution in step 2, and then perform coating heat t...

Embodiment 3

[0026] Such as figure 1 As shown, a Gd-doped Ti-based Sb-SnO 2 Catalytic plate, including titanium substrate 1, Gd-Sb-SnO 2 coating. Gd-Sb-SnO 2 Coated by Sb-SnO 2 coating and Gd coating composition. The titanium base 1 has a cylindrical structure. A plurality of alternate annular grooves 11 are provided on the side of the titanium base 1 . Gd-Sb-SnO 2 The coating wraps around the outside of the titanium base. Sb-SnO 2 The mass fraction ratio of coating and Gd coating is: 70:1. There are 8 annular grooves.

[0027] A Gd-doped Ti-based Sb-SnO 2The preparation method of the catalytic pole plate is as follows: 1. Firstly, the titanium substrate is polished, and then soaked with a chemical solution. 2. Prepare the coating solution containing Sn, Sb and Gd. 3. Seal multiple annular grooves on the titanium substrate with multiple heat-resistant rings. 4. Immerse the titanium substrate treated in step 3 in the coating solution in step 2, and then perform coating heat tr...

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Abstract

The invention discloses a Gd-doped titanium-based Sb-SnO2 catalytic plate and a preparation method thereof, comprising a titanium substrate and a Gd-Sb-SnO2 coating; the titanium substrate has a cylindrical structure; the titanium substrate A plurality of alternate annular grooves are arranged on the side of the titanium substrate; the Gd-Sb-SnO2 coating is wrapped around the outer side of the titanium substrate. The preparation steps are as follows: 1. First, polish the titanium substrate, and then immerse it in a chemical solution; 2. Prepare a coating solution containing Sn, Sb, and Gd; 4. Submerge the titanium matrix processed in step 3 in the coating liquid in step 2, and then carry out coating heat treatment; 5. Take out the titanium matrix in step 4, and remove the coating on the annular groove Heat-resistant ring belt; 6. Submerge the titanium substrate in step 5 in the coating liquid in step 2, and perform coating heat treatment. The invention greatly improves the catalytic efficiency. The "ring sawtooth" Gd-Sb-SnO2 coating greatly improves the oxygen evolution potential.

Description

technical field [0001] The invention relates to a catalytic pole plate for waste water, in particular to a structure and a preparation method of the catalytic pole 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 imp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25B11/02C25B11/04C25B11/10C02F1/467
CPCC02F1/46109C02F1/4672C02F2001/46142C02F2001/46152
Inventor 徐根华
Owner 南京华创环境技术研究院有限公司