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IrO2-Ta2O5 anode with TiN nanotube middle layer

An iro2-ta2o5, nanotube technology, applied in electrodes, coatings, surface reaction electrolytic coatings, etc., can solve the problems of reduced electrode life, low electrocatalytic activity of the coating anode, low heat generation, etc., and achieves excellent performance and low preparation cost. , combined with a strong effect

Active Publication Date: 2020-11-13
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the electrochemical production of oxygen evolution reaction such as high-speed electroplating and PCB electroplating and other production lines, the titanium-based IrO2 parts that withstand high current 2 -Ta 2 o 5 The electrocatalytic activity of the coated anode is low, the heat generation is serious, and the electrode life is greatly reduced

Method used

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  • IrO2-Ta2O5 anode with TiN nanotube middle layer

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Embodiment 1

[0048] The IrO with TiN nanotube interlayer provided by the present embodiment 2 -Ta 2 o 5 Nano-coated anode material, with Ti as the substrate (specifically TA2 titanium), and IrO on the surface 2 -Ta 2 o 5 nanocoating while IrO 2 -Ta 2 o 5 An intermediate layer of TiN nanotubes is prepared between the nano-coating and the Ti substrate; the specific preparation steps are described as follows.

[0049] (1) Preparation of TiO 2 nanotube

[0050] First, the titanium substrate is polished, and then the anodic oxidation method is used to prepare and form TiO on the surface of the titanium substrate. 2 nanotube layer; when prepared, will contain TiO 2 The titanium substrate of the nanotube layer is alternately rinsed with deionized water and ethanol and ultrasonically treated to remove the electrolyte and debris remaining on the surface, rinsed and dried in a nitrogen flow for later use;

[0051] Preparation of TiO by anodic oxidation 2 For the nanotube layer, the refer...

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Abstract

The invention belongs to the technical field of electrochemical anode manufacture, and relates to preparation of a titanium-based insoluble anode, in particular to an IrO2-Ta2O5 anode with a TiN nanotube middle layer. According to the anode material, Ti serves as a matrix, an IrO2-Ta2O5 nano-coating is prepared on the surface, and meanwhile a TiN nanotube middle layer is prepared between the IrO2-Ta2O5 nano coating and the Ti matrix. The anode product provided by the invention has the characteristics of large specific surface area, excellent electrical conductivity, thermal conductivity, corrosion resistance and the like, and the TiN nanotube middle layer is firmly combined with the IrO2-Ta2O5 coating and the titanium substrate. The IrO2-Ta2O5 coating has obvious crystal grains, the size of the crystal grains is 40-100 nm, and the electrocatalytic activity and the service life of the IrO2-Ta2O5 coating are obviously superior to those of a common titanium-based IrO2-Ta2O5 coating anode.

Description

technical field [0001] This application belongs to the technical field of electrochemical anode manufacturing, and relates to the preparation of a titanium-based insoluble anode, and further specifically relates to an IrO2 with a TiN nanotube intermediate layer. 2 -Ta 2 o 5 anode. Background technique [0002] As a solid heterogeneous catalyst, anode materials are widely used in electrochemical applications such as new energy batteries, supercapacitors, electroplating, chlor-alkali industry, corrosion protection, and electrolytic oxidation wastewater treatment. However, with the rapid development of industry, as well as many factors such as the improvement of material performance requirements and environmental protection requirements, the anode materials in traditional electrochemical applications such as lead alloy anodes and graphite anodes have been difficult to meet the high overpotential and high Performance requirements such as electrocatalytic activity, high stabil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B11/06C25D11/26C23C18/12
CPCC25D11/26C23C18/1254C23C18/1216Y02E60/36
Inventor 闫镇威谭兆钧冯在强唐明奇王文李刚张占哲
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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