Titanium-based beta-MnO2-RuO2 composite coating anode plate and preparation method and application thereof

A composite coating and anode plate technology, applied in the coating, metal material coating process, electrodes, etc., can solve the problems of high cell voltage and short life, and achieve low cell voltage, long service life and excellent catalytic activity Effect

Active Publication Date: 2018-12-18
KUNMING HENDERA SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the problems of high cell voltage and short service life of this type of coating in actual use limit its large-scale application.

Method used

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  • Titanium-based beta-MnO2-RuO2 composite coating anode plate and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1: as figure 1 As shown, the titanium-based β-MnO in this example 2 -RuO 2 Composite coated anode plate, including titanium-clad copper conductive beam 1, titanium mesh substrate 2, silicone sleeve 3, conductive head 4, silicone sleeve 3 sets are set at the left and right ends of titanium-clad copper conductive beam 1, titanium-clad copper conductive beam 1 end The bottom end of the head exposes copper as the conductive head 4, the conductive head 4 is connected to an external power supply, the titanium mesh substrate 2 is fixed on the lower end of the titanium-clad copper conductive beam 1, and the titanium mesh substrate 2 is sequentially coated with a gradient Ir-Ta-Sn-SbOx Interlayer and β-MnO 2 -RuO 2 Composite surface active layer; the thickness of the gradient Ir-Ta-Sn-SbOx intermediate layer is 5µm, β-MnO 2 -RuO 2 The thickness of the composite surface active layer is 150µm; the titanium mesh substrate 2 is a diamond-shaped mesh structure with a ...

Embodiment 2

[0041] Example 2: Titanium-based β-MnO of this example 2 -RuO 2 Composite coated anode plate, including titanium-clad copper conductive beam, titanium mesh substrate, silicone sleeve, conductive head, the silicone sleeve set is set at the left and right ends of the titanium-clad copper conductive beam, and the bottom end of the titanium-clad copper conductive beam is exposed as copper. Conductive head, the conductive head is connected to an external power supply, and the titanium mesh substrate is fixed at the lower end of the titanium-clad copper conductive beam. The titanium mesh substrate is coated with a gradient Ir-Ta-Sn-SbOx intermediate layer and β-MnO in sequence. 2 -RuO 2 Composite surface active layer; the thickness of the gradient Ir-Ta-Sn-SbOx intermediate layer is 8µm, β-MnO 2 -RuO 2The thickness of the composite surface active layer is 200µm; the titanium mesh substrate 2 is a porous structure with a thickness of 5mm and a pore diameter of 8mm;

[0042] Titan...

Embodiment 3

[0051] Embodiment 3: Titanium-based β-MnO of this embodiment 2 -RuO 2 Composite coated anode plate, including titanium-clad copper conductive beam, titanium mesh substrate, silicone sleeve, conductive head, the silicone sleeve set is set at the left and right ends of the titanium-clad copper conductive beam, and the bottom end of the titanium-clad copper conductive beam is exposed as copper. Conductive head, the conductive head is connected to an external power supply, and the titanium mesh substrate is fixed at the lower end of the titanium-clad copper conductive beam. The titanium mesh substrate is coated with a gradient Ir-Ta-Sn-SbOx intermediate layer and β-MnO in sequence. 2 -RuO 2 Composite surface active layer; the thickness of the gradient Ir-Ta-Sn-SbOx middle layer is 15µm, β-MnO 2 -RuO 2 The thickness of the composite surface active layer is 150 µm; the titanium mesh substrate 2 is a porous structure with a thickness of 5 mm and a pore diameter of 8 mm;

[0052] ...

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Abstract

The invention relates to a titanium-based beta-MnO2-RuO2 composite coating anode plate and a preparation method and application thereof, and belongs to the technical field of anode plates in wet metallurgy. The titanium-based beta-MnO2-RuO2 composite coating anode plate comprises a titanium clad copper conducting beam, a titanium net matrix, silica gel cases and a conducting head. The left end andthe right end of the titanium clad copper conducting beam are sleeved with the silica gel cases, the conducting head is fixedly arranged at the bottom end of the titanium clad copper conducting beamand externally connected with a power source, the titanium net matrix is fixedly arranged at the lower end of the titanium clad copper conducting beam, and the titanium net matrix is sequentially coated with a gradient Ir-Ta-Sn-SbOx interlayer and a beta-MnO2-RuO2 composite surface active layer. The titanium-based beta-MnO2-RuO2 composite coating anode plate has excellent catalytic performance andlong service life, the cell voltage is low in the electrolytic process, it is effectively avoided that in the using process of a titanium matrix, oxygen is generated, so that a TiO2 film is generated, and titanium-based metal oxide anode passivation fails, environmental friendliness is achieved, and the defect that the cost of a precious metal oxide coating is too high is overcome.

Description

technical field [0001] The invention relates to a titanium-based β-MnO 2 -RuO 2 The composite coating anode plate and its preparation method and application belong to the technical field of anode plate in hydrometallurgy. Background technique [0002] Titanium-based metal oxide anode, also known as "Dimentionally Stable Anode" (Dimentionally Stable Anode, DSA), it generally uses metal titanium as the substrate, and coats the surface of the substrate with high catalytic Coated electrodes of active metal oxides. The research on DSA began in the middle of the 20th century, and has been widely used in electrochemical industries such as chlor-alkali industry, hydrometallurgy, electroplating, water treatment, electrosynthesis, and pollutant degradation. In the field of sewage treatment, the electrocatalytic oxidation method has strong oxidation and reduction capabilities, consumes less chemicals, and can recover valuable substances such as metals. Therefore, it has been applie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25C7/02C23C18/12
CPCC23C18/1216C25C7/02
Inventor 陈步明黄惠郭忠诚
Owner KUNMING HENDERA SCI & TECH
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