Titanium-based positive electrode with high oxygen evolution overpotential and preparing method thereof

An oxygen evolution overpotential and electrode technology, which is applied in the field of anode electrodes, can solve the problems of low oxygen evolution overpotential, etc., and achieve the effects of improving oxygen evolution overpotential and improving physical and chemical properties.

Inactive Publication Date: 2016-04-20
周检
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a titanium-based anode with a high oxygen evolution overpotential and a preparation method thereof to solve the problem that the oxygen evolution overpotential of the existing anode electrode used for electrochemical catalytic oxidation is low

Method used

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  • Titanium-based positive electrode with high oxygen evolution overpotential and preparing method thereof
  • Titanium-based positive electrode with high oxygen evolution overpotential and preparing method thereof
  • Titanium-based positive electrode with high oxygen evolution overpotential and preparing method thereof

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Embodiment 1

[0024] This embodiment includes the following steps:

[0025] Step (1), as attached figure 1 As shown, choose a thickness of 0.5mm and an area of ​​9cm 2 The titanium plate is used as the titanium substrate, and the surface of the titanium plate is processed by sandblasting process, and the size of the sand grains is 300 mesh. Put the sandblasted titanium plate into the alcohol solution for ultrasonic cleaning for 10 minutes, then corrode the cleaned titanium plate with 10% oxalic acid for 30 minutes, then rinse the corroded titanium plate with deionized water, and finally The titanium plate was blown dry with nitrogen gas.

[0026] Step (2), weigh the SnCl of 8.0g 4 ·5H 2 O and put it into 50mL of alcohol, and use a magnetic stirrer to fully stir to obtain a clear and uniform solution.

[0027] Step (3), weigh 0.20g of CuNO 3 And put it into the solution obtained in step 2, and use a magnetic stirrer to fully stir to obtain a clear and uniform solution.

[0028] Step (...

Embodiment 2

[0032] This embodiment includes the following steps:

[0033] Step (1), as attached figure 1 As shown, choose a thickness of 0.5mm and an area of ​​9cm 2 The titanium mesh is used as the titanium substrate, and the surface of the titanium plate is processed by sandblasting, and the size of the sand particles is 300 mesh. Put the sandblasted titanium plate into the alcohol solution for ultrasonic cleaning for 10 minutes, then corrode the cleaned titanium mesh with 18% hydrochloric acid for 30 minutes, then rinse the corroded titanium mesh with deionized water, and finally use The titanium plate was blown dry with nitrogen gas.

[0034] Step (2), weigh the SnCl of 8.0g 4 ·5H 2 O, and put it into the ethanol of 50mL, utilize magnetic stirrer to carry out thorough stirring to obtain clear and homogeneous solution.

[0035] Step (3), weigh 0.1g of CuNO 3 And put it into the solution obtained in step 2, and use a magnetic stirrer to fully stir to obtain a clear and uniform sol...

Embodiment 3

[0040] This embodiment includes the following steps:

[0041] Step (1), as attached figure 1 As shown, a titanium plate with a thickness of 1 mm and an area of ​​9 cm2 is selected as the titanium substrate, and the surface of the titanium plate is processed by sandblasting, and the size of the sand grains is 300 mesh. Put the sandblasted titanium plate into the alcohol solution for ultrasonic cleaning for 10 minutes, then corrode the cleaned titanium plate with 10% oxalic acid for 30 minutes, then rinse the corroded titanium plate with deionized water, and finally The titanium plate was blown dry with nitrogen gas.

[0042] Step (2), weigh the SnCl of 7.0g 2 2H 2 O and put it into 50mL of alcohol, and use a magnetic stirrer to fully stir to obtain a clear and uniform solution.

[0043] Step (3), weigh the CuNO of 0.08g 3And put it into the solution obtained in step 2, and use a magnetic stirrer to fully stir to obtain a clear and uniform solution.

[0044] Step (4), pick...

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Abstract

The invention discloses a titanium-based positive electrode with a high oxygen evolution overpotential and a preparing method thereof. A Cu-doped SnO2 film layer and a titanium substrate are arranged in the electrode from outside to inside. According to the preparing method, the titanium substrate which is subjected to decontamination and TiO2 removal treatment and is in any geometrical shape is coated with a precursor solution containing Sn and Cu, and high-temperature annealing is carried out to form the titanium-based Cu-doped SnO2 positive electrode. By means of Cu element doping, physical and chemical properties of a SnO2 film are changed, and the high oxygen evolution potential of the positive electrode exceeds 2.6 V (vs NHE).

Description

technical field [0001] The invention belongs to the field of anode electrodes for electrochemical oxidation treatment of industrial waste water, and relates to a titanium-based anode electrode with high oxygen evolution overpotential and a preparation method thereof. Background technique [0002] With the rapid development of my country's economy, the problem of industrial organic wastewater pollution is becoming more and more serious, which directly threatens the health of our people, especially the toxic and harmful organic substances contained in water, such as phenols, benzenes, polycyclic aromatic hydrocarbons, etc., which are carcinogenic , teratogenic hazard organic matter. Electrochemical catalytic oxidation treatment of organic wastewater is considered to be the most promising next-generation organic wastewater treatment process because it can effectively degrade high-concentration, toxic and harmful organic substances that are difficult to degrade by microorganisms ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/461C02F1/72C02F101/30
CPCC02F1/4672C02F1/725C02F2001/46138C02F2101/30
Inventor 周检
Owner 周检
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