阅读说明：本技术 一种振动增强脱附阴极 (Vibration-enhanced desorption cathode ) 是由 不公告发明人 于 2020-06-12 设计创作，主要内容包括：本发明提供了一种振荡增强脱附阴极,该阴极包括导电基底、尖锥、磁致伸缩部,磁致伸缩部置于导电基底内。应用时,在外加磁场的作用下,磁致伸缩部产生伸缩,从而带动导电基底和尖锥振荡,增强导电基底和尖锥的气体脱附能力,从而提高电解水制氢效率。本发明将磁致伸缩部置于导电基底内,磁致伸缩部不受电解液影响,具有使用方便、制氢效率高的优点,在电解水制氢领域具有重要的应用价值。(The invention provides an oscillation enhanced desorption cathode, which comprises a conductive substrate, a pointed cone and a magnetostrictive part, wherein the magnetostrictive part is arranged in the conductive substrate. When the device is applied, under the action of an external magnetic field, the magnetostrictive part stretches and contracts, so that the conductive substrate and the pointed cone are driven to oscillate, the gas desorption capacity of the conductive substrate and the pointed cone is enhanced, and the hydrogen production efficiency of electrolyzed water is improved. The magnetostrictive part is arranged in the conductive substrate, is not influenced by electrolyte, has the advantages of convenient use and high hydrogen production efficiency, and has important application value in the field of hydrogen production by electrolyzing water.)

1. An oscillation enhanced desorption cathode comprising: the device comprises a conductive substrate, a pointed cone and a magnetostrictive part; the number of the pointed cones is multiple, the pointed cones are arranged on the conductive substrate, and the magnetostrictive parts are arranged in the conductive substrate; when the device is applied, an external magnetic field is applied, the magnetostrictive part oscillates under the action of the external magnetic field to drive the conductive substrate and the pointed cone to oscillate, and the gas desorption capacity of the conductive substrate and the pointed cone is enhanced.

2. The oscillation enhanced desorption cathode of claim 1, wherein: the number of the magnetostrictive parts is more than one.

3. The oscillation enhanced desorption cathode of claim 2, wherein: the magnetostrictive portions have different thicknesses.

4. The oscillation enhanced desorption cathode of claim 2, wherein: the magnetostrictive portion is provided in a plurality of layers.

5. The vibration-enhanced desorption cathode of claim 4, wherein: the magnetostrictive parts are arranged in two layers.

6. The oscillation enhanced desorption cathode of claim 5, wherein: and the magnetostrictive part is small near the pointed cone.

7. The oscillation enhanced desorption cathode of claim 6, wherein: the pointed cones differ in diameter and height.

8. The oscillation enhanced desorption cathode of any one of claims 1-7, wherein: the conductive substrate and the pointed cone are made of nickel.

9. The oscillation enhanced desorption cathode of claim 8 wherein the material of the magnetostrictive portion is a nickel alloy, an iron-based alloy, a ferrite material.

10. The oscillation enhanced desorption cathode of claim 9, wherein: and a carbon nanotube layer is arranged at the top of the pointed cone.

Technical Field

The invention relates to the technical field of hydrogen production, in particular to a vibration-enhanced desorption cathode.

Background

Hydrogen appears on earth mainly in a compound state, and is the most widely distributed substance in the universe. Hydrogen energy is a secondary energy source. The hydrogen energy has the advantages of cleanness, no pollution, high combustion efficiency, transportability and the like, and is an ideal green energy source. Hydrogen energy has the potential to become an important energy source in the world's energy arena in the 21 st century. Because the earth has a lot of water resources, hydrogen energy is also a potential inexhaustible energy source, and the development and utilization of hydrogen energy are highly regarded by various countries. The hydrogen production by water electrolysis is the hydrogen production by water photolysis by utilizing solar energy to irradiate an anode, and is an important mode for obtaining hydrogen energy. However, the hydrogen desorption speed from the cathode surface is slow, so that the efficiency of the traditional hydrogen production by photolysis of water is limited. Improving the hydrogen desorption performance of the cathode is an important way for improving the hydrogen production by electrolyzing water.

Disclosure of Invention

In order to solve the above problems, the present invention provides an oscillation enhanced desorption cathode, which comprises a conductive substrate, a pointed cone, a magnetostrictive part; the plurality of pointed cones are arranged on the conductive substrate, and the magnetostrictive parts are arranged in the conductive substrate; when the device is applied, an external magnetic field is applied, the magnetostrictive part oscillates under the action of the external magnetic field to drive the conductive substrate and the pointed cone to oscillate, and the gas desorption capacity of the conductive substrate and the pointed cone is enhanced.

Further, the number of the magnetostrictive parts is more than one.

Further, the magnetostrictive parts differ in thickness.

Further, the magnetostrictive portion is provided in a plurality of layers.

Further, the magnetostrictive parts are provided in two layers.

Further, near the pointed cone, the magnetostrictive part has a small volume.

Further, the pointed cones vary in diameter and height.

Further, the material of the conductive substrate and the pointed cone is nickel.

Furthermore, the material of the magnetostrictive part is nickel alloy, iron-based alloy, ferrite material.

Furthermore, a carbon nanotube layer is arranged on the top of the pointed cone.

The invention has the beneficial effects that: the invention provides an oscillation enhanced desorption cathode, which comprises a conductive substrate, a pointed cone and a magnetostrictive part, wherein the magnetostrictive part is arranged in the conductive substrate. When the device is applied, under the action of an external magnetic field, the magnetostrictive part stretches and contracts, so that the conductive substrate and the pointed cone are driven to oscillate, the gas desorption capacity of the conductive substrate and the pointed cone is enhanced, and the hydrogen production efficiency of electrolyzed water is improved. The magnetostrictive part is arranged in the conductive substrate, is not influenced by electrolyte, has the advantages of convenient use and high hydrogen production efficiency, and has important application value in the field of hydrogen production by electrolyzing water.

The present invention will be described in further detail below with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic of an oscillating enhanced desorption cathode.

Fig. 2 is a schematic of yet another oscillating enhanced desorption cathode.

Figure 3 is a schematic of yet another oscillating enhanced desorption cathode.

Fig. 4 is a schematic of yet another oscillating enhanced desorption cathode.

In the figure: 1. a conductive substrate; 2. a pointed cone; 3. a magnetostrictive portion.

Detailed Description

To further explain the technical means and effects of the present invention adopted to achieve the intended purpose, the following detailed description of the embodiments, structural features and effects of the present invention will be made with reference to the accompanying drawings and examples.