Device for electrochemically generating hydrogen peroxide and control method thereof

Abstract

The invention provides a device for electrochemically generating hydrogen peroxide and a control method thereof, and belongs to the technical field of electrochemistry, the device comprises a cathode electrode, an anode electrode and a refrigeration device; the anode electrode and the cathode electrode are arranged at an interval; the refrigerating device is used for refrigerating between the anode electrode and the cathode electrode, so that the temperature between the anode electrode and the cathode electrode is reduced, and liquid is condensed. Heat conduction occurs between the refrigerating device and the anode electrode, so that the temperature between the anode electrode and the cathode electrode is reduced, moisture in air is condensed between the anode electrode and the cathode electrode to form condensed water, and the condensed water enables a circuit of the cathode electrode and the anode electrode to be conducted; the condensed water is electrolyzed to generate hydrogen peroxide, and the hydrogen peroxide is released into air to play a role in sterilization and disinfection; according to the device for electrochemically generating hydrogen peroxide and the control method thereof, hydrogen peroxide can be directly prepared from air.

Description

Technical Field

[0001] The present invention relates to the field of electrochemical technology, and in particular to a device for electrochemically generating hydrogen peroxide and a control method thereof. Background Art

[0002] As an efficient, harmless and residue-free oxidant, hydrogen peroxide solution is widely used in the sterilization and disinfection of water bodies and the treatment of organic pollutants. The existing industrial production of hydrogen peroxide requires the use of large-scale, energy-intensive and cumbersome preparation processes, and transportation and storage facilities have additional equipment costs and potential safety hazards.

[0003] In the prior art, in order to avoid the cost and risk of storing and transporting hydrogen peroxide, a ready-to-use hydrogen peroxide production device is proposed. Usually, an anode electrode and a cathode electrode are arranged in a reaction tank, and the electrolyte in the reaction tank is electrolyzed by energizing the anode electrode and the cathode electrode to produce hydrogen peroxide.

[0004] However, the above method requires artificial addition of electrolyte. Summary of the invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problem that the hydrogen peroxide production device in the prior art needs to manually add electrolyte, thereby providing a device for electrochemically generating hydrogen peroxide and a control method thereof.

[0006] In order to solve the above technical problems, the present invention provides a device for electrochemically generating hydrogen peroxide, comprising:

[0007] cathode electrode;

[0008] an anode electrode, wherein the anode electrode and the cathode electrode are spaced apart from each other;

[0009] The refrigeration device provides cooling between the anode electrode and the cathode electrode to reduce the temperature between the anode electrode and the cathode electrode to condense the liquid.

[0010] Optionally, the anode electrode is made of a heat-conducting and electrically-conductive material.

[0011] Optionally, the refrigeration device includes: a semiconductor refrigeration plate, which is closely connected to a side of the anode electrode away from the cathode electrode.

[0012] Optionally, a second power supply is further included, and the semiconductor cooling plate is electrically connected to the second power supply.

[0013] Optionally, the cathode electrode is made of a porous conductive material.

[0014] Optionally, the cathode electrode is arranged horizontally.

[0015] Optionally, a fan is provided on a side of the cathode electrode away from the anode electrode.

[0016] Optionally, the anode electrode and the cathode electrode are plate-shaped materials that are arranged in parallel and at intervals.

[0017] The present invention provides a control method for the above-mentioned device for electrochemically generating hydrogen peroxide, comprising the following steps:

[0018] Pre-cooling: cooling between the anode electrode and the cathode electrode by means of a refrigeration device, so that obvious ice crystals appear on the surface of the anode electrode, and then shutting down the refrigeration device;

[0019] Detecting current, detecting the working current between the anode electrode and the cathode electrode, and judging whether the preset current is reached;

[0020] If the operating current between the anode electrode and the cathode electrode is greater than the preset current, hydrogen peroxide is produced.

[0021] Optionally, if the operating current between the anode electrode and the cathode electrode is less than a preset current, the pre-cooling and current detection steps are repeated.

[0022] The technical solution of the present invention has the following advantages:

[0023] 1. In the electrochemical device for producing hydrogen peroxide provided by the present invention, heat conduction occurs between the refrigeration device and the anode electrode, so that the temperature between the anode electrode and the cathode electrode is reduced, and moisture in the air condenses between the anode electrode and the cathode electrode to form condensed water. The condensed water causes the cathode electrode and the anode electrode to conduct the circuit, and the condensed water is electrolyzed to produce hydrogen peroxide, which is released into the air to play a sterilization and disinfection role. The electrochemical device for producing hydrogen peroxide provided by the present invention can directly produce hydrogen peroxide from the air, and has a higher efficiency than electrolyzing humid air in the gas phase, thereby solving the problem that the hydrogen peroxide production device in the prior art needs to manually add electrolyte.

[0024] 2. The electrochemical hydrogen peroxide generating device provided by the present invention adopts a heat-conducting and conductive material to make the anode electrode. When the conductivity requirements of the anode electrode are met, heat is transferred between the refrigeration device and the anode electrode, so that the temperature of the anode electrode is reduced, which is conducive to the condensation of moisture in the air on the anode electrode.

[0025] 3. In the device for electrochemically producing hydrogen peroxide provided by the present invention, the temperature of the cold end of the semiconductor refrigeration plate decreases after the heat is energized. The cold end of the semiconductor refrigeration plate is attached to the side of the anode electrode away from the cathode electrode. Heat is conducted between the semiconductor refrigeration plate and the anode electrode, so that the temperature of the anode electrode is reduced, which is conducive to the condensation of moisture in the air between the anode electrode and the cathode electrode to form condensed water, thereby making the circuit between the anode electrode and the cathode electrode conductive and performing an electrolysis reaction.

[0026] 4. In the electrochemical hydrogen peroxide generating device provided by the present invention, the semiconductor refrigeration plate is continuously powered by a second power source, so that the anode electrode is kept at a low temperature, which is conducive to the condensation of condensed water.

[0027] 5. The electrochemical hydrogen peroxide generating device provided by the present invention electrolyzes water to generate hydrogen peroxide to form hydrogen peroxide. The cathode electrode made of porous conductive material can guide the hydrogen peroxide to the side of the cathode electrode away from the anode electrode, and then diffuse it into the air.

[0028] 6. The device for electrochemically generating hydrogen peroxide provided by the present invention has a horizontally arranged cathode electrode, which is conducive to conducting the electrolyzed hydrogen peroxide to the upper surface of the cathode electrode.

[0029] 7. In the electrochemical hydrogen peroxide generating device provided by the present invention, a fan is arranged on the side of the cathode electrode away from the anode electrode to blow air on the upper surface of the cathode electrode, thereby further bringing the hydrogen peroxide into the air.

[0030] 8. In the electrochemical hydrogen peroxide generating device provided by the present invention, the anode electrode and the cathode electrode are arranged in parallel and spaced apart to form a gap, and the plate profile is more conducive to the accumulation of condensed water in the gap, so that the cathode electrode and the anode electrode are conductive, thereby electrolyzing the condensed water condensed in the gap.

[0031] 9. The control method of the electrochemical hydrogen peroxide production device provided by the present invention uses a refrigeration device to cool the space between the anode electrode and the cathode electrode, so that the temperature between the anode electrode and the cathode electrode is rapidly reduced, and the moisture in the air is rapidly condensed between the anode electrode and the cathode electrode. When obvious ice crystals appear on the surface of the anode electrode, the refrigeration device is shut down, the ice crystals on the surface of the anode electrode melt into water, the cathode electrode is moistened, the anode electrode and the cathode electrode are turned on, and the working current between the anode electrode and the cathode electrode is detected. If the working current is greater than the preset current, it means that the amount of condensed water is sufficient to electrolyze and produce the required hydrogen peroxide concentration, and hydrogen peroxide is produced. Since the above-mentioned electrochemical hydrogen peroxide production device is used, any of the above-mentioned advantages is possessed.

[0032] 10. In the control method of the electrochemical hydrogen peroxide generating device provided by the present invention, if the working current between the anode electrode and the cathode electrode is less than the preset current, it means that the amount of condensed water between the anode electrode and the cathode electrode is insufficient to produce the required hydrogen peroxide concentration, and the steps of pre-cooling and current detection are repeated to quickly condense the moisture in the air so that the condensed water reaches the required amount. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 A schematic diagram of an embodiment of a device for electrochemically generating hydrogen peroxide provided in an embodiment of the present invention;

[0035] Figure 2 It is a flow chart of the control method;

[0036] Figure 3 A schematic diagram of another embodiment of an apparatus for electrochemically generating hydrogen peroxide.

[0037] Description of reference numerals:

[0038] 1. cathode electrode; 2. anode electrode; 3. refrigeration device; 4. first power supply; 5. second power supply; 6. fan; 7. condensed water; 8. water absorption block. DETAILED DESCRIPTION

[0039] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0043] Example 1

[0044] This embodiment provides an electrochemical hydrogen peroxide production device that can directly produce hydrogen peroxide from the air, which is used to produce hydrogen peroxide for sterilization and disinfection.

[0045] like Figure 1 As shown, a specific implementation of an electrochemical hydrogen peroxide generating device provided in this embodiment includes: a cathode electrode 1, an anode electrode 2 and a refrigeration device 3; the anode electrode 2 is spaced apart from the cathode electrode 1; the refrigeration device 3 cools between the anode electrode 2 and the cathode electrode 1 to reduce the temperature between the anode electrode 2 and the cathode electrode 1 to condense the liquid.

[0046] When in use, heat conduction occurs between the refrigeration device 3 and the anode electrode 2, so that the temperature between the anode electrode 2 and the cathode electrode 1 is reduced, and the moisture in the air condenses between the anode electrode 2 and the cathode electrode 1 to form condensed water 7. The condensed water 7 makes the circuit between the cathode electrode 1 and the anode electrode 2 conductive, and the condensed water 7 is electrolyzed to produce hydrogen peroxide, which is released into the air to play a sterilization and disinfection role. The electrochemical hydrogen peroxide production device provided by the present invention can directly produce hydrogen peroxide from the air, and has higher efficiency than the electrolysis of humid air in the gas phase, which solves the problem that the hydrogen peroxide production device in the prior art needs to manually add electrolyte.

[0047] Specifically, the anode electrode 2 and the cathode electrode 1 are electrically connected to a first power supply 4 , the first power supply 4 uses low-voltage alternating current, the anode electrode 2 is connected to the positive electrode of the first power supply 4 , and the cathode electrode 1 is connected to the negative electrode of the first power supply 4 .

[0048] like Figure 1As shown, in the device for electrochemically generating hydrogen peroxide provided in this embodiment, the anode electrode 2 is made of a heat-conducting and conductive material. When the anode electrode 2 is made of a heat-conducting and conductive material and the conductivity requirement of the anode electrode 2 is met, the heat is conducted between the refrigeration device 3 and the anode electrode 2, so that the temperature of the anode electrode 2 is reduced, which is conducive to the condensation of moisture in the air on the anode electrode 2. Specifically, the anode electrode 2 is made of an alloy of one or more of platinum, palladium, ruthenium, rhodium, iridium, osmium, and gold, or the anode electrode 2 is made of a boron-doped diamond film, or the anode electrode 2 is a glassy carbon electrode, which can meet the conductivity and heat conduction requirements of the anode electrode 2 and prevent the condensed water 7 from leaking from the anode electrode 2.

[0049] like Figure 1 As shown, in the device for electrochemically generating hydrogen peroxide provided in this embodiment, the refrigeration device 3 includes: a semiconductor refrigeration sheet, which is attached to the side of the anode electrode 2 away from the cathode electrode 1. After the semiconductor refrigeration sheet is powered on, the temperature of the cold end is reduced, and the cold end of the semiconductor refrigeration sheet is attached to the side of the anode electrode 2 away from the cathode electrode 1. The heat conduction between the semiconductor refrigeration sheet and the anode electrode 2 reduces the temperature of the anode electrode 2, which is conducive to the condensation of moisture in the air between the anode electrode 2 and the cathode electrode 1 to form condensed water 7, so that the circuit between the anode electrode 2 and the cathode electrode 1 is connected to perform an electrolysis reaction. In addition, as an alternative embodiment, the refrigeration device 3 can also be provided with a heat exchanger with a refrigeration medium, or other refrigeration methods that can exchange heat with the anode electrode 2.

[0050] like Figure 1 As shown, the electrochemical hydrogen peroxide generating device provided in this embodiment further includes a second power source 5, and the semiconductor refrigeration sheet is electrically connected to the second power source 5. The semiconductor refrigeration sheet is continuously powered by the second power source 5, so that the anode electrode 2 is kept at a low temperature, which is conducive to the condensation of condensed water 7. Specifically, the second power source 5 uses low-voltage alternating current.

[0051] like Figure 1 As shown, in the electrochemical hydrogen peroxide generating device provided in this embodiment, the cathode electrode 1 is made of porous conductive material. Water is electrolyzed to generate hydrogen peroxide to form hydrogen peroxide. The cathode electrode 1 made of porous conductive material can guide the hydrogen peroxide to a side of the cathode electrode 1 away from the anode electrode 2, and then diffuse into the air.

[0052] like Figure 1As shown, in the electrochemical hydrogen peroxide generating device provided in this embodiment, the cathode electrode 1 is arranged horizontally. The horizontally arranged cathode electrode 1 is conducive to the hydrogen peroxide after electrolysis to be conducted to the upper surface of the cathode electrode 1. Specifically, the cathode electrode 1 is a foam nickel plate, a porous graphite plate, a sintered titanium plate, an activated carbon felt or a carbon paper. The foam nickel plate, the porous graphite plate, the sintered titanium plate, the activated carbon felt or the carbon paper has a porous structure. The cathode electrode 1 is made of the above materials, which can meet the conductivity requirements of the cathode electrode 1 and facilitate the diffusion of the hydrogen peroxide generated by electrolysis into the air.

[0053] like Figure 1 As shown, in the electrochemical hydrogen peroxide generating device provided in this embodiment, a fan 6 is provided on the side of the cathode electrode 1 away from the anode electrode 2. The fan 6 is provided on the side of the cathode electrode 1 away from the anode electrode 2, and the fan 6 blows air on the upper surface of the cathode electrode 1 to further bring hydrogen peroxide into the air. In addition, as an alternative embodiment, the fan 6 can also be provided at other positions where wind can blow over the upper surface of the cathode electrode 1.

[0054] like Figure 1 As shown, in the electrochemical hydrogen peroxide generating device provided in this embodiment, the anode electrode 2 and the cathode electrode 1 are plate-shaped materials arranged in parallel and spaced apart. The anode electrode 2 and the cathode electrode 1 are arranged in parallel and spaced apart to form a gap, and the plate-shaped material is more conducive to the aggregation of condensed water 7 in the gap, and the cathode electrode 1 and the anode electrode 2 are connected through the condensed water 7, so as to electrolyze the condensed water 7 condensed in the gap. In addition, as an alternative embodiment, the cathode electrode 1 can also be other structures such as a grid shape and a mesh shape.

[0055] How to use

[0056] like Figure 1 As shown, the electrochemical hydrogen peroxide generating device provided in this embodiment is connected to the second power supply 5 when in use, the refrigeration device 3 cools down, heat conduction occurs between the refrigeration device 3 and the anode electrode 2, so that the temperature between the anode electrode 2 and the cathode electrode 1 is reduced, and moisture in the air condenses between the anode electrode 2 and the cathode electrode 1 to form condensed water 7, and the condensed water 7 makes the cathode electrode 1 and the anode electrode 2 circuit conductive, and the condensed water 7 is electrolyzed to generate hydrogen peroxide, which is conducted to the upper surface of the cathode electrode 1 through the cathode electrode 1, and the hydrogen peroxide is brought into the air by the fan 6 to play a sterilization and disinfection role; the electrochemical hydrogen peroxide generating device provided by the present invention can directly produce hydrogen peroxide from the air, and has a higher efficiency than electrolyzing humid air in the gas phase, and solves the problem that the hydrogen peroxide production device in the prior art needs to manually add electrolyte.

[0057] In addition, if Figure 2 As shown, this embodiment also provides a control method for an electrochemical hydrogen peroxide generating device, comprising the following steps: pre-cooling, cooling the space between the anode electrode 2 and the cathode electrode 1 by means of a refrigeration device 3, causing obvious ice crystals to appear on the surface of the anode electrode 2, and shutting down the refrigeration device; detecting current, detecting the working current between the anode electrode 2 and the cathode electrode 1, and determining whether a preset current is reached; if the working current between the anode electrode 2 and the cathode electrode 1 is greater than the preset current, hydrogen peroxide is produced.

[0058] When in use, the refrigeration device 3 cools the space between the anode electrode 2 and the cathode electrode 1, so that the temperature between the anode electrode 2 and the cathode electrode 1 is rapidly reduced, and the moisture in the air is rapidly condensed between the anode electrode 2 and the cathode electrode 1. When obvious ice crystals appear on the surface of the anode electrode 2, the refrigeration device 3 is shut down, and the ice crystals on the surface of the anode electrode 2 melt into water, and the cathode electrode 1 is moistened, so that the anode electrode 2 and the cathode electrode 1 are turned on, and the working current between the anode electrode 2 and the cathode electrode 1 is detected. If the working current is greater than the preset current, it means that the amount of condensed water is sufficient to electrolyze and produce the required hydrogen peroxide concentration, and hydrogen peroxide is produced. The control method of the device for electrochemically producing hydrogen peroxide provided by the present invention rapidly condenses the moisture in the air between the anode electrode 2 and the cathode electrode 1 through pre-cooling, and determines whether the required amount of condensed water is reached by detecting the current, so as to ensure the required hydrogen peroxide concentration.

[0059] It should be noted that, during pre-cooling, the working current of the refrigeration device 3 is adjusted to the maximum value, so that the refrigeration device 3 works at maximum power and cools down quickly, so that the temperature between the anode electrode 2 and the cathode electrode 1 drops rapidly, and the moisture in the air condenses rapidly or even freezes; when the working current between the anode electrode 2 and the cathode electrode 1 is greater than the preset current, the working current of the refrigeration device is adjusted to the set value, maintaining a stable and continuous power supply to achieve a balance between the consumption and replenishment of condensed water, thereby ensuring the continuous production of the required hydrogen peroxide concentration.

[0060] In the control method of the device for electrochemically generating hydrogen peroxide provided in this embodiment, if the working current between the anode electrode 2 and the cathode electrode 1 is less than the preset current, the pre-cooling and current detection steps are repeated. When the working current between the anode electrode 2 and the cathode electrode 1 is less than the preset current, the refrigeration device 3 is adjusted to the maximum power for rapid refrigeration, and when obvious ice crystals appear on the surface of the anode electrode 2, the refrigeration device 3 is shut down. When the surface of the cathode electrode 1 is wet, the current is detected again, and the above steps are repeated until the working current between the anode electrode 2 and the cathode electrode 1 is greater than the preset current, and the production of hydrogen peroxide begins.

[0061] Example 2

[0062] This embodiment provides a device for electrochemically generating hydrogen peroxide, and its structure is substantially the same as that in Embodiment 1, except that:

[0063] like Figure 3 As shown, in the electrochemical device for generating hydrogen peroxide provided in the embodiment, a water absorbent block 8 is arranged between the anode electrode 2 and the cathode electrode 1, and a plurality of the water absorbent blocks 8 are arranged at intervals between the anode electrode 2 and the cathode electrode 1 to increase the contact area between the water absorbent blocks 8 and the air, and the water absorbent blocks 8 are made of a porous water-retaining material to form a rod-shaped body. When in use, the second power supply 5 is turned on to reduce the temperature of the cold end of the refrigeration device 3, and heat conduction occurs between the refrigeration device 3 and the anode electrode 2, so that the temperature of the anode electrode 2 is reduced, and the moisture in the air condenses into condensed water on the anode electrode 2. After the water absorption block 8 absorbs the condensed water on the anode electrode 2 and the moisture in the air, the resistance is reduced, so that the circuit between the cathode electrode 1 and the anode electrode 2 is connected, and the condensed water is electrolyzed to produce hydrogen peroxide, and the hydrogen peroxide is brought into the air by blowing through the fan 6 to play a sterilization and disinfection role; the electrochemical device for preparing hydrogen peroxide from the air provided by the present invention can prepare hydrogen peroxide directly from the air, and has a higher efficiency than that of electrolyzing humid air in the gas phase, and solves the problem that the hydrogen peroxide production device in the prior art needs to manually add electrolyte.

[0064] Specifically, the water-absorbing block 8 can be formed into a rod-shaped body by using ceramic fibers (ceramic filaments, glass fibers, etc.), organic fibers (polyester fibers, synthetic fibers, nylon fibers, etc.), metal fibers (stainless steel fibers, copper fibers, titanium fibers, etc.); or a porous body formed by sintering ceramic particles or metal particles into a rod-shaped body, or a foamed body such as urethane resin or styrene resin into a rod-shaped body, etc. In addition, as an alternative embodiment, the water-absorbing block 8 can also be in a sheet shape or other shapes that are conducive to water absorption and diffusion of hydrogen peroxide.

[0065] Obviously, the above embodiments are merely examples for clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the present invention.

Claims

1. A device for electrochemically generating hydrogen peroxide, characterized in that: include: A cathode electrode (1); an anode electrode (2), the anode electrode (2) being arranged at a distance from the cathode electrode (1); The refrigeration device (3) cools the space between the anode electrode (2) and the cathode electrode (1) so as to reduce the temperature between the anode electrode (2) and the cathode electrode (1) and condense the liquid.

2. The device for electrochemically generating hydrogen peroxide according to claim 1, characterized in that: The anode electrode (2) is made of heat-conducting and electrically-conductive material.

3. The device for electrochemically generating hydrogen peroxide according to claim 1, characterized in that: The refrigeration device (3) comprises: a semiconductor refrigeration plate, which is closely connected to a side of the anode electrode (2) away from the cathode electrode (1).

4. The device for electrochemically generating hydrogen peroxide according to claim 3, characterized in that: It also includes a second power source (5), and the semiconductor cooling plate is electrically connected to the second power source (5).

5. The device for electrochemically generating hydrogen peroxide according to claim 1, characterized in that: The cathode electrode (1) is made of a porous conductive material.

6. The device for electrochemically generating hydrogen peroxide according to claim 5, characterized in that: The cathode electrode (1) is arranged horizontally.

7. The device for electrochemically generating hydrogen peroxide according to claim 5, characterized in that: A fan (6) is provided on a side of the cathode electrode (1) away from the anode electrode (2).

8. The device for electrochemically generating hydrogen peroxide according to any one of claims 1 to 7, characterized in that: The anode electrode (2) and the cathode electrode (1) are plate-shaped materials arranged in parallel and at intervals.

9. A method for controlling an electrochemical hydrogen peroxide generating device according to any one of claims 1 to 8, characterized in that: The following steps are involved: Pre-cooling, cooling between the anode electrode (2) and the cathode electrode (1) by means of a refrigeration device (3), causing obvious ice crystals to appear on the surface of the anode electrode (2), and then shutting down the refrigeration device (3); Detecting current, detecting the working current between the anode electrode (2) and the cathode electrode (1), and determining whether a preset current has been reached; If the operating current between the anode electrode (2) and the cathode electrode (1) is greater than a preset current, hydrogen peroxide is produced.

10. The control method of the device for electrochemically generating hydrogen peroxide according to claim 9, characterized in that: If the operating current between the anode electrode (2) and the cathode electrode (1) is less than the preset current, the pre-cooling and current detection steps are repeated.

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