Preparation method for titanium-based low-precious-metal-content oxide coating anode

A technology of oxide coating and precious metals, which is applied in the direction of electrodes, electrolytic processes, electrolytic components, etc., can solve the problems of poor stability and catalytic activity of anode materials, high production costs, etc., and achieve reduced production costs, stable performance, and current efficiency high effect

Inactive Publication Date: 2012-06-27
ZHEJIANG UNIV
View PDF6 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for preparing a titanium-based oxide coating anode with low precious metal content

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

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0010] Example 1:

[0011] The titanium plate after sandblasting is machined into a size of 10 mm×10 mm×1 mm and an effective area of ​​1.0 cm 2 After washing with clean water, place the sample in deionized water for ultrasonic cleaning for 10 minutes and take it out. After boiling 37% concentrated hydrochloric acid, put the sample into it and boil it for 2 minutes. After washing with clean water, place it in deionized water for ultrasonic cleaning. Wash for 10 minutes, take it out, and dry for later use. Then add tin tetrachloride (SnCl 4 ·5H 2 O), antimony trichloride (SbCl 3 ) Were dissolved in isopropanol (C 3 H 7 OH), the prepared SnCl concentration is 0.5M 4 ·5H 2 O solution and SbCl 3 Solution. The chloroiridic acid (H 2 IrCl 6 ·XH 2 O) and ruthenium trichloride (RuCl 3 ·XH 2 O) Dissolve in isopropanol and concentrated hydrochloric acid (HCl) with a volume ratio of 1:1 to prepare H with a concentration of 0.5M 2 IrCl 6 ·XH 2 O solution and RuCl 3 ·XH 2 O solution. SnCl 4 ...

Example Embodiment

[0012] Example 2:

[0013] The titanium plate after sandblasting is machined into a size of 20 mm×20 mm×1 mm and an effective area of ​​4.0 cm 2 After washing with clean water, place the sample in deionized water for ultrasonic cleaning for 10 minutes and take it out. After boiling 37% concentrated hydrochloric acid, put the sample into it and boil it for 2 minutes. After washing with clean water, place it in deionized water for ultrasonic cleaning. Wash for 10 minutes, take it out, and dry for later use. Then add tin tetrachloride (SnCl 4 ·5H 2 O), antimony trichloride (SbCl 3 ) Were dissolved in isopropanol (C 3 H 7 OH), the prepared SnCl concentration is 0.5M 4 ·5H 2 O solution and SbCl 3 Solution. The ruthenium trichloride (RuCl 3 ·XH 2 O) Dissolve in isopropanol and concentrated hydrochloric acid (HCl) with a volume ratio of 1:1 to prepare RuCl with a concentration of 0.5M 3 ·XH 2 O solution. SnCl 4 ·5H 2 O, SbCl 3 , RuCl 3 ·XH 2 The three O solutions are mixed to form an a...

Example Embodiment

[0014] Example 3:

[0015] The titanium plate after sandblasting is machined into a size of 10 mm×10 mm×1 mm and an effective area of ​​1.0 cm 2 After washing with clean water, place the sample in deionized water for ultrasonic cleaning for 10 minutes and take it out. After boiling 37% concentrated hydrochloric acid, put the sample into it and boil it for 2 minutes. After washing with clean water, place it in deionized water for ultrasonic cleaning. Wash for 10 minutes, take it out, and dry for later use. Then add tin tetrachloride (SnCl 4 ·5H 2 O), antimony trichloride (SbCl 3 ) Were dissolved in isopropanol (C 3 H 7 OH), the prepared SnCl concentration is 0.5M 4 ·5H 2 O solution and SbCl 3 Solution. The chloroiridic acid (H 2 IrCl 6 ·XH 2 O) and ruthenium trichloride (RuCl 3 ·XH 2 O) Dissolve in isopropanol and concentrated hydrochloric acid (HCl) with a volume ratio of 1:1 to prepare H with a concentration of 0.5M 2 IrCl 6 ·XH 2 O solution and RuCl 3 ·XH 2 O solution. SnCl 4 ...

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 preparation method for a titanium-based low-precious-metal-content oxide coating anode. The preparation method comprises the following steps of: performing sand blasting and polishing treatment on a titanium substrate, removing oil stain, and putting into deionized water for performing ultrasonic cleaning; preparing chloro-iridic acid, ruthenium trichloride, trichloride antimony and tin tetrachloride into a masking liquid under the condition that the mole percent of chloro-iridic, ruthenium trichloride or a mixture of chloro-iridic and ruthenium trichloride is 2.5-30 percent, the mole percent of trichloride antimony is 10-15 percent and the mole percent of tin tetrachloride is 60-87.5 percent, coating onto the titanium substrate, drying at the temperature of 70-90 DEG C for 5 minutes, sintering at the temperature of 500-550 DEG C for 5 minutes, repeating the process till an oxide coating is up to 1.5-2.0 mg/cm<2>, and sintering at the temperature of 500-550 DEG C for one hour. The anode provided by the invention can be widely applied in the fields of seawater electrolysis chlorine preparation, electroflotation, electroosmosis, electrodeionization and the like. The anode has stable performance and high current efficiency, the precious metal molar ratio is lowered to 2.5-30 percent, and the cost can be lowered remarkably.

Description

technical field [0001] The invention relates to a preparation method of an anode, in particular to a titanium-based low-precious metal content oxidation method for chlorine and oxygen analysis in water and wastewater treatment such as electrolytic seawater chlorine production, electric floatation, electrodialysis, and electrodeionization. Preparation method of material coated anode. Background technique [0002] Chlorine is a common disinfectant widely used in water and wastewater treatment. Typically, chlorine is produced by electrolysis of a saturated sodium chloride solution. In recent years, more and more scholars have begun to pay attention to the direct electrolysis of seawater to produce chlorine and hypochlorite. Using seawater as the electrolyte does not require the consumption of additional chemical reagents, which can significantly save costs, which is of great significance in coastal areas where seawater resources are abundant. Since the chloride ion concentra...

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
IPC IPC(8): C25B11/06C25B11/10
Inventor 陈雪明王斯文
Owner ZHEJIANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap