Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Pretreatment method of titanium substrate for electrode

A titanium base and pretreatment technology, which is applied in the field of environmental protection wastewater treatment, can solve problems such as difficulty in meeting requirements, and achieve the effects of improving electrode life, easy bonding, and increasing bonding force

Inactive Publication Date: 2021-08-17
陕西榆能集团能源化工研究院有限公司 +1
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to various limitations, the current titanium substrate pretreatment process is still difficult to meet the requirements. It is of practical application value to develop a new and efficient titanium substrate pretreatment technology to improve the bonding force between the electrode catalyst and the titanium substrate.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Pretreatment method of titanium substrate for electrode
  • Pretreatment method of titanium substrate for electrode
  • Pretreatment method of titanium substrate for electrode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Put the titanium mesh in 10% oxalic acid solution and boil for 60min. The surface of the titanium mesh base forms an uneven honeycomb pitted surface, such as figure 1 shown. Put the above-mentioned titanium substrate boiled with oxalic acid in the electrolyte, wherein the volume ratio of ethylene glycol to water is 5:1, and the mass concentration of ammonium fluoride is 0.5%. The titanium mesh boiled with oxalic acid is used as the anode, and another titanium Use a net as the cathode, keep the distance between the two electrodes 2cm, electrolyze for 2.5h at a voltage of 30V, and obtain a surface structure such as figure 2 Shown is a titanium substrate whose surface has a nanotube array structure but is partially covered by inclusions. The titanium substrate was ultrasonically cleaned in 3% hydrochloric acid solution for 1 min to obtain the following image 3 In the titanium substrate with the structure shown, the substrate is covered by a neat array of titanium nano...

Embodiment 2

[0040] Place the titanium sheet in 15% oxalic acid solution and boil for 10 minutes. Put the above-mentioned titanium substrate boiled with oxalic acid in the electrolyte, wherein the volume ratio of ethylene glycol to water is 10:1, and the mass concentration of ammonium fluoride is 1.0%. The titanium sheet boiled with oxalic acid is used as the anode, and the platinum sheet is used as the cathode. , keep the distance between the two electrodes 1cm, electrolyze at 70V for 0.5h. The titanium substrate was ultrasonically cleaned in 3% hydrochloric acid solution for 10 minutes, and the substrate was covered by a tidy array of titanium nanotubes, and this structure was the pretreated titanium substrate.

Embodiment 3

[0042] Place the titanium rod in 2% oxalic acid solution and boil for 30min. Put the above-mentioned titanium substrate boiled with oxalic acid in the electrolyte, wherein the volume ratio of ethylene glycol to water is 2:1, and the mass concentration of ammonium fluoride is 0.8%. The titanium rod boiled with oxalic acid is used as the anode, and the stainless steel sheet is used as the cathode , keep the distance between the two electrodes 5cm, electrolyze at 50V for 1h. The titanium substrate was ultrasonically cleaned in 3% hydrochloric acid solution for 5 minutes, and the substrate was covered by a neat array of titanium nanotubes, and this structure was the pretreated titanium substrate.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a pretreatment method of a titanium substrate for an electrode. The method comprises the steps: boiling the titanium substrate in an acid or alkali solution for 10-60 minutes, cleaning the titanium substrate, carrying out anodic oxidation etching on the titanium substrate, and cleaning the titanium substrate after etching to obtain a titanium substrate of which the surface is provided with a regular titanium nanotube array structure. According to the method, after the titanium substrate is pretreated, the surface roughness of the titanium substrate is greatly improved, and a surface catalyst even can be diffused into a nanotube, so that the binding force between the surface of the titanium substrate and a catalyst layer is greatly improved, and the service life of the electrode is further prolonged.

Description

technical field [0001] The invention belongs to the technical field of environmental protection wastewater treatment, in particular to a pretreatment method for a titanium substrate for an electrode. Background technique [0002] Electrode materials are widely used in many fields such as electroplating, metallurgy, environmental protection, energy, chemical synthesis, etc., and titanium substrates are often used as carriers and current collectors for electrode catalysts in the field of electrode materials due to their excellent stability and good conductivity . Therefore, when used as a carrier and a current collector, it is often necessary to have a relatively strong binding force between the electrode catalyst and the substrate titanium to prevent the catalyst layer from falling off the electrode surface, thereby affecting the life of the electrode. [0003] Traditional measures to improve the binding force between electrode catalysts and titanium substrates include acid-...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C25F3/08
CPCC25F3/08
Inventor 高生辉高峰李立郝巧娥王云海卢传旭蔡文芳
Owner 陕西榆能集团能源化工研究院有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com