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A Bionic Wetting Gradient Cone Cluster Electrode

A wetting and gradient technology, applied in the direction of electrodes, electrode shapes/types, electrolytic components, etc., can solve problems such as bubble adhesion, achieve the effect of improving gas production efficiency and broad application prospects

Active Publication Date: 2022-04-26
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problem of bubble adhesion in the hydrogen evolution reaction system. By using the bionic wettability gradient cone cluster electrode, the hydrogen bubbles can be generated at the tip area of ​​the cone array in the hydrogen evolution reaction, grow up and coalesce with each other, and flow toward the cone. After reaching the bottom of the conical array, the hydrogen bubbles can be effectively absorbed, preventing the bubbles from re-entering the electrolyte, effectively improving the gas production efficiency, and reducing safety hazards in industrial production

Method used

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  • A Bionic Wetting Gradient Cone Cluster Electrode
  • A Bionic Wetting Gradient Cone Cluster Electrode
  • A Bionic Wetting Gradient Cone Cluster Electrode

Examples

Experimental program
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Effect test

Embodiment 1

[0055] Such as figure 1 As shown, a bionic wettability gradient cone cluster electrode includes several bionic wettability gradient cone electrodes 1 arranged in clusters and a bubble transport area 2 between each bionic wettability gradient cone electrode 1;

[0056] The biomimetic wettability gradient tapered electrode 1 includes a metal rod 11 and a metal cone 12 arranged on the upper end of the metal rod 11. The metal cone 12 includes a hydrophobic region 121 at the tip and a superhydrophobic region 122 adjacent to the metal rod 11. And the transition zone 123 between the hydrophobic zone 121 and the superhydrophobic zone 122;

[0057] The hydrophobic region 121 is used for electrolysis to generate bubbles, the surface of the superhydrophobic region 122 and the transition region 123 are covered with hydrophobic particles, and the transition region 123 is used to make the bubbles leave the hydrophobic region 121 and transport the bubbles to the superhydrophobic region 122; ...

Embodiment 2

[0060] Such as figure 1 As shown, a bionic wettability gradient cone cluster electrode includes several bionic wettability gradient cone electrodes 1 arranged in clusters and a bubble transport area 2 between each bionic wettability gradient cone electrode 1;

[0061] The biomimetic wettability gradient tapered electrode 1 includes a metal rod 11 and a metal cone 12 arranged on the upper end of the metal rod 11. The metal cone 12 includes a hydrophobic region 121 at the tip and a superhydrophobic region 122 adjacent to the metal rod 11. And the transition zone 123 between the hydrophobic zone 121 and the superhydrophobic zone 122;

[0062] The hydrophobic region 121 is used for electrolysis to generate bubbles, the surface of the superhydrophobic region 122 and the transition region 123 are covered with hydrophobic particles, and the transition region 123 is used to make the bubbles leave the hydrophobic region 121 and transport the bubbles to the superhydrophobic region 122; ...

Embodiment 3

[0066] Such as figure 1 As shown, a bionic wettability gradient cone cluster electrode includes several bionic wettability gradient cone electrodes 1 arranged in clusters and a bubble transport area 2 between each bionic wettability gradient cone electrode 1;

[0067] The biomimetic wettability gradient tapered electrode 1 includes a metal rod 11 and a metal cone 12 arranged on the upper end of the metal rod 11. The metal cone 12 includes a hydrophobic region 121 at the tip and a superhydrophobic region 122 adjacent to the metal rod 11. And the transition zone 123 between the hydrophobic zone 121 and the superhydrophobic zone 122;

[0068] The hydrophobic region 121 is used for electrolysis to generate bubbles, the surface of the superhydrophobic region 122 and the transition region 123 are covered with hydrophobic particles, and the transition region 123 is used to make the bubbles leave the hydrophobic region 121 and transport the bubbles to the superhydrophobic region 122; ...

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Abstract

The invention provides a bionic wettability gradient cone cluster electrode, which includes several bionic wettability gradient cone electrodes arranged in clusters and a bubble delivery area between each bionic wettability gradient cone electrode; the bionic wettability gradient cone electrode The metal cone of the shaped electrode includes a hydrophobic area, a super-hydrophobic area and a transition area; the hydrophobic area is used for electrolysis to generate bubbles, the surface of the super-hydrophobic area and the transition area is covered with hydrophobic particles, and the transition area is used to make the air bubbles leave the hydrophobic area and transport the air bubbles to superhydrophobic region. The present invention aims to solve the problem of bubble adhesion in the hydrogen evolution reaction system. By using the bionic wettability gradient cone cluster electrode, the hydrogen bubbles can be generated in the tip area of ​​the cone array in the hydrogen evolution reaction, grow up and coalesce with each other, and flow toward the cone. After reaching the bottom of the conical array, the hydrogen bubbles can be effectively absorbed, preventing the bubbles from entering the electrolyte again, effectively improving the gas production efficiency, and reducing safety hazards in industrial production.

Description

technical field [0001] The invention relates to the technical field of electrolysis or electrophoresis technology and the equipment used therein, in particular to a bionic wettable gradient cone cluster electrode. Background technique [0002] With the depletion of traditional fossil energy and the increasing awareness of environmental protection, hydrogen, as a clean, high energy density and sustainable energy, is favored by people and widely used, such as fuel for rockets, automobiles and aircraft . Electrolysis of water can directly or indirectly convert other forms of energy into hydrogen energy. It has the advantages of easy-to-obtain raw materials, simple operation, and high-purity hydrogen production, so it has become a research hotspot. However, the marketization of the electrolytic hydrogen production industry still faces many problems. Among them, the adhesion of bubbles on the electrode surface is the main bottleneck that plagues the development of the electrode ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25B11/02C25B11/04C25B1/04C25F3/14
CPCC25B11/02C25B11/04C25B1/04C25F3/14Y02E60/36
Inventor 张金科于存明
Owner BEIHANG UNIV