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

Method for preparing high specific surface diamond electrode

A diamond electrode, high specific surface technology, applied in the direction of electrodes, electrolysis process, electrolysis components, etc., can solve the problems of poor catalytic oxidation ability of organic matter, loss of electrocatalytic performance, reduction of oxidation current efficiency, etc., to achieve short preparation time, Prepare fast, easy-to-handle effects

Inactive Publication Date: 2009-02-04
WUHAN INSTITUTE OF TECHNOLOGY
View PDF0 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some electrode materials currently used have many deficiencies, such as graphite electrodes, which have poor catalytic oxidation ability for organic matter and low current efficiency [3]; noble metal materials such as Pt, Au and other electrodes have high cost and are easily absorbed by sulfur-containing organic matter and other substances. Poisoned to lose its electrocatalytic performance, resulting in a decrease in oxidation current efficiency, it is difficult to apply in practical work[4]

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
  • Method for preparing high specific surface diamond electrode
  • Method for preparing high specific surface diamond electrode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The preparation method of high specific surface diamond electrode, it comprises the steps:

[0038] 1) Cleaning of metal electrodes:

[0039] Soak the metal tungsten electrode surface with dilute NaOH solution (mass concentration is 10%) for 2 minutes to remove the oil stain on the metal tungsten electrode surface; rinse it with clean water after taking it out, and then put the metal tungsten electrode in dilute HCl solution (mass Concentration is 5%), soaked in 2 minutes, to remove the oxide on the metal tungsten electrode surface;

[0040] 2) Preparation of conductive diamond film:

[0041] Deposit a conductive diamond film on the surface of the metal electrode by chemical vapor deposition on the metal electrode after step 1) cleaning (degreasing and rust removal), and the thickness is controlled at 160 microns;

[0042] The metal tungsten electrode is supported by alumina so that the diamond film can be deposited on both the front and back sides;

[0043] The spec...

Embodiment 2

[0053] The preparation method of high specific surface diamond electrode, it comprises the steps:

[0054] 1) Cleaning of metal electrodes:

[0055] Soak the metal molybdenum electrode surface with dilute potassium hydroxide solution (mass concentration is 20%) for 1 minute to remove the oil stain on the metal electrode surface; rinse it with clear water after taking it out, then place the metal molybdenum electrode in dilute hydrochloric acid solution ( Mass concentration is 20%), soaked in 1 minute, to remove the oxide of metal molybdenum electrode surface;

[0056] 2) Preparation of conductive diamond film:

[0057] The metal molybdenum electrode after step 1) cleaning (removing oil and rust) utilizes the known chemical vapor deposition method to deposit a layer of conductive diamond film on the surface of the metal electrode, and the thickness is controlled at 10 microns;

[0058] 3) Prepare a solid etching material on the surface of the conductive diamond film:

[0059...

Embodiment 3

[0065] The preparation method of high specific surface diamond electrode, it comprises the steps:

[0066] 1) Cleaning of metal electrodes:

[0067] Soak the metal titanium electrode surface with a mixed solution of dilute sodium hydroxide and potassium hydroxide (mass concentration is 5%) for 5 minutes to remove the oil stain on the metal titanium electrode surface; rinse it with clear water after taking it out, and then put the metal titanium electrode Be placed in dilute hydrochloric acid solution (mass concentration is 5%) and soak for 5 minutes, to remove oxides on the surface of metal titanium electrodes;

[0068] 2) Preparation of conductive diamond film:

[0069] Deposit a layer of conductive diamond film on the surface of the metal electrode using the known chemical vapor deposition method on the metal titanium electrode after step 1) cleaning (degreasing and rust removal), and the thickness is controlled at 300 microns;

[0070] 3) Prepare a solid etching material ...

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

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the field of diamond electrode preparation. A preparation method of the high-specific surface diamond electrode is characterized by comprising the following steps: (1) the metal electrode is cleaned; (2) conductive diamond film is prepared; (3) solid etching material is prepared on the surface of the conductive diamond film; (4) the diamond film surface is corroded through a plasma auxiliary solid contact method; (5) residual solid etching material on the diamond film surface is dissolved by acid solution, to obtain the high-specific surface diamond electrode. The preparation method has the advantages of large-area preparation, easy operation, short time in preparation, etc.

Description

technical field [0001] The invention belongs to the field of diamond electrode preparation, in particular to a method for preparing a porous diamond electrode with a high specific surface area. Background technique [0002] CVD diamond film is a new type of functional material with a series of unique physical and chemical properties, such as high hardness, high thermal conductivity, low coefficient of friction, good biocompatibility, etc., making it widely used in microelectronics, microsensors, micromachines, High-tech fields such as micro-opto-electromechanical systems and biological implants have broad application prospects [1]. In today's society, "energy saving and emission reduction" has become the theme of the times, and wastewater treatment is one of the important measures. Biochemical methods are difficult to remove organic pollutants, so electrochemical catalysis is needed, and the electrode is the core of the electrocatalytic process, which determines the electro...

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): C25B11/04C23C16/27
Inventor 满卫东汪建华谢鹏孙蕾陈朋余学超
Owner WUHAN INSTITUTE OF TECHNOLOGY
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