Apparatus for electrochemically generating hydrogen peroxide and method for producing hydrogen peroxide

Abstract

An apparatus for electrochemically generating hydrogen peroxide and a method for producing hydrogen peroxide belong to the field of electrochemistry. The apparatus includes a cathode electrode (2), an anode electrode (1), and a water-absorbing member (3). The anode electrode (1) is installed at a distance from the cathode electrode (2), and the water-absorbing member (3) is installed between the anode electrode (1) and the cathode electrode (2), and the water-absorbing member (3) is in close contact with the anode electrode (1) and the cathode electrode (2). When in use, liquid is absorbed into the water-absorbing member (3) and stored therein, thereby creating a circuit between the cathode electrode (2) and the anode electrode (1), electrolyzing the water to generate hydrogen peroxide, which is then released into the air to provide a sterilizing and disinfecting effect. The apparatus for electrochemically generating hydrogen peroxide can produce hydrogen peroxide by directly adsorbing water from the air, solving the problem of manually adding electrolyte in conventional hydrogen peroxide production apparatuses.

Description

Technical Field

[0001] Cross-reference to Related Applications This application claims priority to Chinese patent applications filed with the China National Intellectual Property Administration on June 29, 2023, with application number 202310787719.3 and title of invention "Device for Electrochemically Generating Hydrogen Peroxide and Control Method Thereof", filed with the China National Intellectual Property Administration on June 29, 2023, with application number 202321688771.5 and title of invention "Device for Electrochemically Producing Hydrogen Peroxide", filed with the China National Intellectual Property Administration on September 5, 2023, with application number 202311144859.5 and title of invention "Device for Electrochemically Generating Hydrogen Peroxide and Production Method of Hydrogen Peroxide", and filed with the China National Intellectual Property Administration on December 22, 2023, with application number 202311789540.8 and title of invention "Device for Electrochemically Generating Hydrogen Peroxide and Production Method of Hydrogen Peroxide", the entire contents of which are incorporated herein by reference.

[0002] This application relates to the technical field of electrochemistry, and specifically, to a device for electrochemically generating hydrogen peroxide and a production method of hydrogen peroxide.

Background Art

[0003] Hydrogen peroxide solution is widely used as an efficient, harmless and residue-free oxidant for sterilizing and disinfecting water and treating organic pollutants. In the conventional industry, the production of hydrogen peroxide requires the use of a large-scale, energy-intensive and complicated manufacturing process, and the transportation and storage facilities involve additional equipment costs and potential safety risks.

[0004] In the prior art, in order to avoid the costs and risks of storing and transporting hydrogen peroxide, a hydrogen peroxide production device that can be used immediately after production has been proposed. Usually, an anode electrode and a cathode electrode are installed in a reaction tank, and the electrolytic solution in the reaction tank is electrolyzed by applying an electric current to the anode electrode and the cathode electrode to generate hydrogen peroxide.

[0005] However, the above method requires manual addition of the electrolytic solution. [Overview of the project] [Problems that the invention aims to solve]

[0006] Therefore, the technical problem that this application aims to solve is to overcome the problem that conventional hydrogen peroxide production devices require manual addition of electrolyte, and to provide a device for electrochemically generating hydrogen peroxide and a method for producing hydrogen peroxide. [Means for solving the problem]

[0007] In one aspect, this application is, Cathode electrode and An anode electrode is installed at a distance from the cathode electrode, The present invention provides an apparatus for electrochemically generating hydrogen peroxide, comprising a water-absorbing member installed between the anode electrode and the cathode electrode and in close contact with the anode electrode and the cathode electrode.

[0008] The system further includes a cooling device that optionally cools the area between the anode electrode and the cathode electrode, thereby lowering the temperature between the anode electrode and the cathode electrode and condensing the liquid.

[0009] The anode electrode may optionally employ a heat-conducting material.

[0010] The anode electrode may be selected from one or more alloys of platinum, palladium, ruthenium, rhodium, iridium, osmium, and gold, or the anode electrode may be a boron-doped diamond thin film, or the anode electrode may be a glassy carbon electrode.

[0011] Optionally, a semiconductor cooling piece is placed in contact with the side of the anode electrode away from the cathode electrode.

[0012] The cathode electrode can optionally employ a porous conductive material.

[0013] A fan is optionally installed on the side of the cathode electrode away from the anode electrode.

[0014] The cathode electrode and the anode electrode are plate-shaped members installed horizontally, as selectable options.

[0015] The water-absorbing member is optionally a plate-like structure made of a porous water-retaining material, an ion exchange membrane, or a proton exchange membrane.

[0016] In another embodiment, the present application includes an apparatus for electrochemically generating hydrogen peroxide as described in any one of the above means, The steps include drawing liquid into the water-absorbing member and storing it, A current detection step that detects the operating current between the anode electrode and the cathode electrode and determines whether or not a predetermined current is reached, The present invention provides a method for producing hydrogen peroxide, which includes the step of producing hydrogen peroxide when the operating current between the anode electrode and the cathode electrode is greater than a predetermined current.

[0017] Selectively, by cooling toward the anode electrode, liquid is drawn into and stored in the water-absorbing member between the anode electrode and the cathode electrode.

[0018] Optionally, the method further includes a preliminary cooling step in which the cooling device cools toward the space between the anode electrode and the cathode electrode, thereby generating visible ice crystals on the surface of the anode electrode, and then turning off the cooling device.

[0019] If the operating current between the anode and cathode electrodes is less than a predetermined current, the pre-cooling and current detection steps are repeated as selectable.

[0020] In yet another aspect, this application is, Cathode electrode and An anode electrode is installed at a distance from the cathode electrode, Provided is an apparatus for electrochemically generating hydrogen peroxide, which includes a water absorption block installed between the anode electrode and the cathode electrode, with both ends connected to the anode electrode and the cathode electrode respectively.

[0021] Optionally, the anode electrode is made of one or more alloys of platinum, palladium, ruthenium, rhodium, iridium, osmium, and gold, or the anode electrode employs a boron-doped diamond thin film, or the anode electrode employs a glassy carbon electrode.

[0022] Optionally, the cathode electrode employs a porous conductive material.

[0023] Optionally, the cathode electrode is installed horizontally.

[0024] Optionally, the cathode electrode is a foamed nickel plate, a porous graphite plate, a sintered titanium plate, activated carbon felt, or carbon paper.

[0025] Optionally, the water absorption block employs a porous water-retaining material.

[0026] Optionally, the water absorption block is a rod-shaped body.

[0027] Optionally, the water absorption block is installed at multiple intervals between the anode electrode and the cathode electrode.

[0028] Optionally, it further includes a fan that blows air towards the water absorption block and / or towards the side of the cathode electrode away from the anode electrode.

[0029] Optionally, the anode electrode and the cathode electrode are plate-shaped members installed parallel to each other with a gap therebetween.

[0030] The technical solution of this application has the following advantages.

[0031] 1. The apparatus for electrochemically generating hydrogen peroxide according to this application works by drawing liquid into an absorbent member and storing it, thereby conducting a circuit between the cathode electrode and the anode electrode, electrolyzing the moisture to generate hydrogen peroxide, and releasing it into the air to perform a sterilizing and disinfecting action. The structure in which the absorbent member, anode electrode, and cathode electrode are in close contact reduces the internal resistance between the anode electrode and the cathode electrode, allowing a large electrolytic current to be generated with only a small amount of liquid, and thus increasing the efficiency of hydrogen peroxide generation. The apparatus for electrochemically generating hydrogen peroxide according to this application can produce hydrogen peroxide by directly adsorbing moisture from the air, which is more efficient than electrolyzing humid air in the gas phase, and solves the problem of manually adding electrolyte in conventional hydrogen peroxide production devices.

[0032] 2. The apparatus for electrochemically generating hydrogen peroxide according to this application provides an electrolytic raw material for hydrogen peroxide generation by lowering the temperature between the anode electrode and the cathode electrode through a cooling device that cools toward the space between the anode electrode and the cathode electrode, thereby condensing the liquid.

[0033] 3. The apparatus for electrochemically generating hydrogen peroxide according to this application has an anode electrode made of a heat-conducting material that can conduct heat.

[0034] 4. The apparatus for electrochemically generating hydrogen peroxide according to this application, when current is applied to a semiconductor cooling piece, decreases the temperature of its cold end, the cold end of the semiconductor cooling piece comes into contact with the side of the anode electrode away from the cathode electrode, and the temperature of the anode electrode is lowered by heat conduction between the semiconductor cooling piece and the anode electrode, and the heat is transferred toward the cathode electrode by the heat transfer characteristics of the anode electrode, lowering the temperature of the cathode electrode and the water-absorbing member, causing the liquid to condense, and providing an electrolytic raw material for hydrogen peroxide generation.

[0035] 5. The apparatus for electrochemically generating hydrogen peroxide according to this application can satisfy the conductivity requirements of the cathode electrode by employing a porous conductive material for the cathode electrode, and can also provide an electrolytic raw material for hydrogen peroxide generation by allowing the condensed liquid on the cathode electrode to permeate down to the water-absorbing material, and the generated hydrogen peroxide can diffuse into the air through the porous cathode electrode.

[0036] 6. The apparatus for electrochemically generating hydrogen peroxide according to this application sends the electrolytically generated hydrogen peroxide into the air by having a fan blow air to the side of the cathode electrode away from the anode electrode.

[0037] 7. The apparatus for electrochemically generating hydrogen peroxide according to this application employs a plate-shaped member in which the cathode electrode and anode electrode are installed horizontally, which is advantageous for storing liquid in the water-absorbing member and can prevent liquid leakage.

[0038] 8. The apparatus for electrochemically generating hydrogen peroxide according to this application is advantageous for liquid adsorption and storage by manufacturing the water-absorbing member from a porous water-retaining material, an ion exchange membrane, or a proton exchange membrane. The water-absorbing member is installed as a plate-like structure, allowing it to be in close contact with the anode electrode and the cathode electrode, which is advantageous for reducing the internal resistance between the anode electrode and the cathode electrode. Furthermore, the temperature of the anode electrode, the water-absorbing member, and the cathode electrode can be lowered by the thermal conduction of cold heat generated at the cold end of the semiconductor cooling piece.

[0039] 9. In the apparatus for electrochemically generating hydrogen peroxide according to this application, when the water absorption block absorbs moisture from the air, the resistance decreases, the circuit between the cathode electrode and the anode electrode conducts, and water is electrolyzed to generate hydrogen peroxide, which is then released into the air to exert a sterilizing and disinfecting effect. The apparatus for electrochemically generating hydrogen peroxide according to this application generates hydrogen peroxide directly from air, is more efficient than electrolyzing humid air in the gas phase, and solves the problem of manually adding electrolyte in conventional hydrogen peroxide production devices.

[0040] 10. The apparatus for electrochemically generating hydrogen peroxide according to this application can satisfy the conductivity requirements of the anode electrode and prevent water leakage from the anode electrode by using an anode electrode made of an alloy of one or more of platinum, palladium, ruthenium, rhodium, iridium, osmium, and gold, or by employing a boron-doped diamond thin film or a glassy carbon electrode.

[0041] 11. The apparatus for electrochemically generating hydrogen peroxide according to this application generates hydrogen peroxide by electrolyzing water to form hydrogen peroxide solution, and by employing a cathode electrode made of a porous conductive material, the hydrogen peroxide solution can be guided to the side of the cathode electrode away from the anode electrode and further diffused into the air.

[0042] 12. The apparatus for electrochemically generating hydrogen peroxide according to this application is advantageous in that the electrolyzed hydrogen peroxide solution is guided to the upper surface of the cathode electrode by a horizontally positioned cathode electrode.

[0043] 13. The apparatus for electrochemically generating hydrogen peroxide according to this application has a porous structure in which foamed nickel plate, porous graphite plate, sintered titanium plate, activated carbon felt, or carbon paper is used, and by manufacturing the cathode electrode from the above material, the conductivity requirements of the cathode electrode can be met, and it is also advantageous for the diffusion of electrolytically generated hydrogen peroxide into the air.

[0044] 14. The apparatus for electrochemically generating hydrogen peroxide according to this application employs a water-absorbing block made of a porous water-retaining material, which allows it to absorb moisture from the air and is advantageous for the diffusion of hydrogen peroxide generated after electrolysis into the air.

[0045] 15. In the apparatus for electrochemically generating hydrogen peroxide according to this application, the water-absorbing block is designed as a rod-shaped body, which allows a connection to be formed between the anode electrode and the cathode electrode. When the water-absorbing block absorbs moisture from the air, the resistance decreases, the circuit between the anode electrode and the cathode electrode becomes conductive, which is advantageous for the diffusion of hydrogen peroxide generated after electrolysis into the air.

[0046] 16. The apparatus for electrochemically generating hydrogen peroxide according to this application can improve the efficiency of water absorption and hydrogen peroxide diffusion by increasing the contact area between the water absorption blocks and air, through the placement of multiple water absorption blocks at intervals between the anode electrode and the cathode electrode.

[0047] 17. The apparatus for electrochemically generating hydrogen peroxide according to this application is characterized in that a fan blows air toward the water absorption block and / or cathode electrode, the generated airflow flows between the anode electrode and the cathode electrode and / or flows along the side of the cathode electrode away from the anode electrode, and delivers the hydrogen peroxide on the water absorption block and / or cathode electrode into the air.

[0048] 18. The apparatus for electrochemically generating hydrogen peroxide according to this application has an anode electrode and a cathode electrode installed parallel to each other as plate-shaped members, forming a gap that holds a water-absorbing block, which is advantageous for sufficient electrolysis of water and improves efficiency.

[0049] 19. The hydrogen peroxide production method according to this application employs an apparatus that uses a water-absorbing member to draw in and store liquid, thereby conducting a circuit between the cathode electrode and the anode electrode, detecting the operating current between the anode electrode and the cathode electrode, producing hydrogen peroxide when the operating current between the anode electrode and the cathode electrode is greater than a predetermined current, and continuously drawing in and storing liquid in the water-absorbing member to repeat the current detection process and electrochemically generate the hydrogen peroxide, thus having one of the above advantages.

[0050] 20. The hydrogen peroxide production method according to this application condenses moisture in the air into a liquid by cooling toward the anode electrode, and draws and stores the liquid in a water-absorbing member between the anode electrode and the cathode electrode, providing the electrodes with raw materials for generating hydrogen peroxide, thereby solving the problem of manually adding electrolyte in conventional hydrogen peroxide production devices.

[0051] 21. The hydrogen peroxide production method according to this application employs an apparatus that electrochemically generates the hydrogen peroxide, and therefore has one of the above advantages. The cooling device cools the area between the anode electrode and the cathode electrode, rapidly lowering the temperature between the anode electrode and the cathode electrode, rapidly condensing moisture in the air between the anode electrode and the cathode electrode, and when obvious ice crystals form on the surface of the anode electrode, the cooling device is turned off, the ice crystals on the surface of the anode electrode melt into water, the cathode electrode becomes wet, the anode electrode and the cathode electrode become conductive, the operating current between the anode electrode and the cathode electrode is detected, and if the operating current is greater than a predetermined current, it indicates that the amount of condensed water is sufficient to produce the required hydrogen peroxide concentration by electrolysis, and hydrogen peroxide is produced.

[0052] 22. The control method for an electrochemical hydrogen peroxide generating apparatus according to this application indicates that when the operating current between the anode electrode and the cathode electrode is less than a predetermined current, the amount of condensed water between the anode electrode and the cathode electrode is insufficient to generate the required hydrogen peroxide concentration, and the pre-cooling and current detection steps are repeated to rapidly condense moisture in the air and reach the required amount of condensed water.

[0053] To more clearly describe specific embodiments of this application or technical solutions of the prior art, the drawings that are necessary for describing specific embodiments or prior art will be briefly described below. Clearly, the drawings described below are some embodiments of this application, and those skilled in the art can obtain other drawings based on these without any creative work. [Brief explanation of the drawing]

[0054] [Figure 1] This is a schematic diagram of an embodiment of an apparatus for electrochemically generating hydrogen peroxide according to an embodiment of this application. [Figure 2] This is a schematic diagram of another embodiment of an apparatus for electrochemically generating hydrogen peroxide according to the embodiments of this application. [Figure 3]This is a flowchart showing the method for producing hydrogen peroxide. [Modes for carrying out the invention]

[0055] The technical solutions of this application will be described clearly and completely below with reference to the drawings, and obviously the embodiments described are some, but not all, embodiments of this application. All other embodiments that a person skilled in the art can obtain without creative work based on the embodiments of this application are within the scope of protection of this application.

[0056] Furthermore, the directions or positional relationships indicated in the description of this application by terms such as "center," "up," "down," "left," "right," "vertical," "horizontal," "inside," and "outside" are directions or positional relationships based on the illustrations and are merely for the convenience and simplification of the description of this application. They do not indicate or imply that such devices or elements necessarily have a specific direction or are configured and operated in a specific direction, and should be understood as not limiting this application. In addition, terms such as "first," "second," and "third" are used solely for explanatory purposes and should be understood as not indicating or implying relative importance.

[0057] In this application, unless otherwise explicitly stated or limited, terms such as “attachment,” “connection,” and “connection” should be understood in a broad sense, for example, as fixed connections, removable connections, or integral connections; mechanical connections, electrical connections, direct connections, indirect connections via an intermediate medium, or internal communication between two elements. Those skilled in the art will be able to understand the specific meaning of these terms in this application depending on the specific circumstances.

[0058] Furthermore, the technical features of the various embodiments of this application described below can be combined with each other, insofar as they do not contradict each other.

[0059] This embodiment provides an apparatus for electrochemically generating hydrogen peroxide, which can directly produce hydrogen peroxide from air for sterilization and disinfection.

[0060] As shown in Figure 1, this is a specific embodiment of the apparatus for electrochemically generating hydrogen peroxide according to this embodiment, and includes a cathode electrode 2, an anode electrode 1, and a water-absorbing member 3. The anode electrode 1 is installed at a distance from the cathode electrode 2, the water-absorbing member 3 is installed between the anode electrode 1 and the cathode electrode 2, and the water-absorbing member 3 is in close contact with the anode electrode 1 and the cathode electrode 2.

[0061] During use, the water-absorbing member 3 absorbs and stores liquid, thereby creating a circuit between the cathode electrode 2 and the anode electrode 1. This electrolyzes the moisture to produce hydrogen peroxide, which is then released into the air to provide a sterilizing and disinfecting effect. The structure in which the water-absorbing member 3, the anode electrode 1, and the cathode electrode 2 are in close contact reduces the internal resistance between the anode electrode 1 and the cathode electrode 2, allowing a large electrolytic current to be generated with only a small amount of liquid, thus increasing the efficiency of hydrogen peroxide production. The apparatus for electrochemically producing hydrogen peroxide according to this embodiment can produce hydrogen peroxide by directly adsorbing moisture from the air, which is more efficient than electrolyzing humid air in the gas phase, and solves the problem of manually adding electrolyte in conventional hydrogen peroxide production apparatuses.

[0062] Specifically, the first power supply 6 is electrically connected to the anode electrode 1 and the cathode electrode 2, the first power supply 6 employs low-voltage AC power, the anode electrode 1 is connected to the positive electrode of the first power supply 6, and the cathode electrode 2 is connected to the negative electrode of the first power supply 6.

[0063] As shown in Figure 1, the apparatus for electrochemically generating hydrogen peroxide according to this embodiment further includes a cooling device that cools toward the space between the anode electrode 1 and the cathode electrode 2, thereby lowering the temperature between the anode electrode 1 and the cathode electrode 2 and condensing the liquid. The cooling device cools toward the space between the anode electrode 1 and the cathode electrode 2, thereby lowering the temperature between the anode electrode 1 and the cathode electrode 2 and condensing the liquid, providing an electrolytic raw material for hydrogen peroxide generation. In one alternative embodiment, the cooling device may be omitted, and moisture from the air may be adsorbed by the water-absorbing member 3. A humidifier may also be installed to improve the humidity of the air.

[0064] As shown in Figure 1, in the apparatus for electrochemically generating hydrogen peroxide according to this embodiment, the anode electrode 1 is made of a heat-conducting material. The anode electrode 1 made of a heat-conducting material can conduct heat. Specifically, the anode electrode 1 may be made of an alloy of one or more of platinum, palladium, ruthenium, rhodium, iridium, osmium, and gold, or the anode electrode 1 may be made of a boron-doped diamond thin film, or the anode electrode 1 may be made of a glassy carbon electrode, thereby satisfying the requirements for conductivity and heat conduction of the anode electrode 1 and preventing the condensed liquid from leaking from the anode electrode 1.

[0065] As shown in Figure 1, in the apparatus for electrochemically generating hydrogen peroxide according to this embodiment, a semiconductor cooling piece 4 is installed in contact with the side of the anode electrode 1 away from the cathode electrode 2. When current is applied to the semiconductor cooling piece 4, the temperature of its cold end decreases, and the cold end of the semiconductor cooling piece 4 comes into contact with the side of the anode electrode 1 away from the cathode electrode 2. Heat conduction between the semiconductor cooling piece 4 and the anode electrode 1 lowers the temperature of the anode electrode 1, and the heat transfer characteristics of the anode electrode 1 allow the cold to be transferred toward the cathode electrode 2, lowering the temperature of the cathode electrode 2 and the water-absorbing member 3, causing the liquid to condense and providing an electrolytic raw material for hydrogen peroxide generation. Specifically, a second power supply 7 is electrically connected to the semiconductor cooling piece 4. In one alternative embodiment, the semiconductor cooling piece 4 may be replaced with a heat exchanger having a refrigerant, or with another cooling method that can exchange heat with the anode electrode 1.

[0066] As shown in Figure 1, in the apparatus for electrochemically generating hydrogen peroxide according to this embodiment, the cathode electrode 2 is made of a porous conductive material. The cathode electrode 2 made of a porous conductive material can satisfy the conductivity requirements of the cathode electrode 2, and can also allow the liquid condensed on the cathode electrode 2 to permeate down to the water-absorbing material, providing an electrolytic raw material for hydrogen peroxide generation, and the generated hydrogen peroxide can diffuse into the air through the porous cathode electrode 2. Specifically, the cathode electrode 2 is made of foamed nickel plate, porous graphite plate, sintered titanium plate, activated carbon felt, or carbon paper.

[0067] As shown in Figure 1, in the apparatus for electrochemically generating hydrogen peroxide according to this embodiment, a fan 5 is installed on the side of the cathode electrode 2 away from the anode electrode 1. The fan 5 blows air onto the side of the cathode electrode 2 away from the anode electrode 1, thereby distributing the electrolytically generated hydrogen peroxide into the air. In one alternative embodiment, the fan 5 may be installed in another position that allows air to flow on the side of the cathode electrode 2 away from the anode electrode 1.

[0068] As shown in Figure 1, in the apparatus for electrochemically generating hydrogen peroxide according to this embodiment, the cathode electrode 2 and the anode electrode 1 are horizontally mounted plate-shaped members. By employing horizontally mounted plate-shaped members for the cathode electrode 2 and the anode electrode 1, it is advantageous for storing liquid in the water-absorbing member 3 and prevents liquid leakage. In addition, as one alternative embodiment, the cathode electrode 2 may have other structures such as a grid or mesh.

[0069] As shown in Figure 1, in the apparatus for electrochemically generating hydrogen peroxide according to this embodiment, the water-absorbing member 3 is a plate-like structure made of a porous water-retaining material, an ion exchange membrane, or a proton exchange membrane. Manufacturing the water-absorbing member 3 from a porous water-retaining material, an ion exchange membrane, or a proton exchange membrane is advantageous for liquid adsorption and storage. The water-absorbing member 3 is installed as a plate-like structure, allowing it to be in close contact with the anode electrode 1 and the cathode electrode 2, which is advantageous for reducing the internal resistance between the anode electrode 1 and the cathode electrode 2. Furthermore, the temperature of the anode electrode 1, the water-absorbing member 3, and the cathode electrode 2 can be lowered by the thermal conduction of cold heat generated at the cold end of the semiconductor cooling piece 4. Specifically, porous water-absorbing materials are materials that can absorb moisture, such as fiber paper and cotton cloth. Ion exchange membranes and proton exchange membranes are more expensive than porous water-absorbing materials, but they have high conductivity. The water-absorbing member 3 is insulated before absorbing water and becomes conductive after absorbing water. Adding an appropriate amount of electrolyte to the water-absorbing member 3 reduces resistance and improves the conductivity of the water-absorbing member 3, allowing a large electrolytic current to be generated with only a small amount of liquid, thus increasing the efficiency of hydrogen peroxide production.

[0070] As shown in Figure 3, the hydrogen peroxide production method further provided by this embodiment further includes a pre-cooling step of drawing liquid into and storing it in a water-absorbing member 3 between the anode electrode 1 and the cathode electrode 2 by cooling toward the anode electrode 1. The cooling device condenses moisture in the air into liquid by cooling toward the anode electrode 1, drawing and storing the liquid in the water-absorbing member 3, providing the electrodes with raw materials for generating hydrogen peroxide, and solving the problem of manually adding electrolyte in conventional hydrogen peroxide production devices.

[0071] During pre-cooling, the operating current of the cooling device is adjusted to its maximum value, operating the cooling device at maximum power to rapidly lower the temperature, causing the temperature between the anode electrode 1 and the cathode electrode 2 to drop rapidly, and moisture in the air to condense or freeze quickly. If the operating current between the anode electrode 1 and the cathode electrode 2 is greater than a predetermined current, the operating current of the cooling device is adjusted to a set value to maintain a stable and continuous power supply, thereby balancing the consumption and replenishment of condensed water and ensuring the hydrogen peroxide concentration necessary for continuous production.

[0072] As shown in Figure 2, this is a specific embodiment of an apparatus for electrochemically producing another hydrogen peroxide according to this embodiment, and includes a cathode electrode 2, an anode electrode 1, and a water absorption block 8, wherein the anode electrode 1 is installed at a distance from the cathode electrode 2, the water absorption block 8 is installed between the anode electrode 1 and the cathode electrode 2, and both ends of the water absorption block 8 are connected to the anode electrode 1 and the cathode electrode 2, respectively.

[0073] When in use, the water-absorbing block 8 absorbs moisture from the air, reducing its resistance, which opens the circuit between the cathode electrode 2 and the anode electrode 1. This electrolyzes the water in the water-absorbing block 8 to produce hydrogen peroxide, which is then released into the air to provide a sterilizing and disinfecting effect. The apparatus for electrochemically producing hydrogen peroxide according to this application can directly produce hydrogen peroxide from air, is more efficient than electrolyzing humid air in the gas phase, and solves the problem of manually adding electrolyte in conventional hydrogen peroxide production apparatuses.

[0074] Specifically, the anode electrode 1 is electrically connected to the positive electrode of the first power supply 6, the cathode electrode 2 is electrically connected to the negative electrode of the first power supply 6, and the first power supply 6 employs low-voltage AC power.

[0075] As shown in Figure 2, in the apparatus for electrochemically producing hydrogen peroxide according to this embodiment, the anode electrode 1 is made of an alloy of one or more of platinum, palladium, ruthenium, rhodium, iridium, osmium, and gold, or the anode electrode 1 is made of a boron-doped diamond thin film, or the anode electrode 1 is made of a glassy carbon electrode. By manufacturing the anode electrode 1 from the above materials, the conductivity and thermal conductivity requirements of the anode electrode 1 can be met, and leakage of condensed water from the anode electrode 1 can be prevented.

[0076] As shown in Figure 2, in the apparatus for electrochemically producing hydrogen peroxide according to this embodiment, the cathode electrode 2 is made of a porous conductive material. Hydrogen peroxide is generated by electrolyzing water to form hydrogen peroxide solution, and by using the cathode electrode 2 made of a porous conductive material, the hydrogen peroxide solution can be guided to the side of the cathode electrode 2 away from the anode electrode 1 and further diffused into the air.

[0077] As shown in Figure 2, in the apparatus for electrochemically producing hydrogen peroxide according to this embodiment, the cathode electrode 2 is installed horizontally. The horizontally installed cathode electrode 2 is advantageous for guiding the hydrogen peroxide solution after electrolysis to the upper surface of the cathode electrode 2.

[0078] As shown in Figure 2, in the apparatus for electrochemically producing hydrogen peroxide according to this embodiment, the cathode electrode 2 is made of foamed nickel plate, porous graphite plate, sintered titanium plate, activated carbon felt, or carbon paper. Foamed nickel plate, porous graphite plate, sintered titanium plate, activated carbon felt, or carbon paper have a porous structure, and by manufacturing the cathode electrode 2 from one of these materials, the conductivity requirements of the cathode electrode 2 can be met, and it is also advantageous for the diffusion of electrolytically produced hydrogen peroxide into the air.

[0079] As shown in Figure 2, in the apparatus for electrochemically producing hydrogen peroxide according to this embodiment, the water-absorbing block 8 is made of a porous water-retaining material. By using a water-absorbing block 8 made of a porous water-retaining material, moisture from the air can be absorbed, which is advantageous for the diffusion of hydrogen peroxide produced after electrolysis into the air. Specifically, the water-absorbing block 8 may be made of ceramic fibers (ceramic filaments, glass fibers, etc.), organic fibers (polyester fibers, artificial fibers, nylon fibers, etc.), metal fibers (stainless steel fibers, copper fibers, titanium fibers, etc.), etc. Alternatively, as one possible embodiment, the water-absorbing block 8 may be made of a porous body obtained by sintering ceramic particles or metal particles, or a foamed body such as urethane resin or polystyrene resin.

[0080] As shown in Figure 2, in the apparatus for electrochemically producing hydrogen peroxide according to this embodiment, the water-absorbing block 8 is a rod-shaped body. By designing the water-absorbing block 8 as a rod-shaped body, a connection can be formed between the anode electrode 1 and the cathode electrode 2. When the water-absorbing block 8 absorbs moisture from the air, its resistance decreases, causing the circuit between the anode electrode 1 and the cathode electrode 2 to conduct, which is advantageous for the diffusion of hydrogen peroxide produced after electrolysis into the air. Alternatively, in one possible embodiment, the water-absorbing block 8 may be flake-shaped or in other shapes advantageous for water absorption and hydrogen peroxide diffusion.

[0081] As shown in Figure 2, in the apparatus for electrochemically producing hydrogen peroxide according to this embodiment, the water-absorbing blocks 8 are installed at multiple intervals between the anode electrode 1 and the cathode electrode 2. By installing multiple water-absorbing blocks 8 at intervals between the anode electrode 1 and the cathode electrode 2, the contact area between the water-absorbing blocks 8 and the air is increased, thereby improving the water absorption and hydrogen peroxide diffusion efficiency.

[0082] As shown in Figure 2, the apparatus for electrochemically producing hydrogen peroxide according to this embodiment further includes a fan 5 that supplies air toward the water absorption block 8 and / or toward the side of the cathode electrode 2 away from the anode electrode 1. The fan 5 supplies air toward the water absorption block 8 and / or the cathode electrode 2, and the generated airflow flows between the anode electrode 1 and the cathode electrode 2 and / or toward the side of the cathode electrode 2 away from the anode electrode 1, sending the hydrogen peroxide on the water absorption block 8 and / or the cathode electrode 2 into the air.

[0083] As shown in Figure 2, in the apparatus for electrochemically producing hydrogen peroxide according to this embodiment, the anode electrode 1 and the cathode electrode 2 are plate-shaped members installed parallel to each other and spaced apart. The anode electrode 1 and the cathode electrode 2 are installed parallel to each other as plate-shaped members, forming a gap that sandwiches the water absorption block 8, which is advantageous for sufficient electrolysis of water and improves efficiency. In one alternative embodiment, the cathode electrode 2 and the anode electrode 1 may have other structures such as a grid or mesh.

[0084] As shown in Figure 2, in the apparatus for electrochemically producing hydrogen peroxide according to this embodiment, when the water absorption block 8 absorbs moisture from the air during use, the resistance decreases, causing the circuit between the cathode electrode 2 and the anode electrode 1 to conduct, electrolyzing the water in the water absorption block 8 to produce hydrogen peroxide, and the fan 5 blows air to send the hydrogen peroxide into the air, thereby providing a sterilizing and disinfecting effect. The apparatus for electrochemically producing hydrogen peroxide according to this application can directly produce hydrogen peroxide from air, is more efficient than electrolyzing humid air in the gas phase, and solves the problem of manually adding electrolyte in conventional hydrogen peroxide production apparatuses.

[0085] How to use As shown in Figure 1, the apparatus for electrochemically generating hydrogen peroxide according to this embodiment, when in use, lowers the temperature of the anode electrode 1, the water-absorbing member 3, and the cathode electrode 2 by cooling and heat transfer by the semiconductor cooling piece 4, condenses moisture in the air into liquid, the water-absorbing member 3 adsorbs and stores the liquid, opens the circuit between the cathode electrode 2 and the anode electrode 1, electrolyzes the moisture to generate hydrogen peroxide, and releases it into the air to perform a sterilizing and disinfecting effect.

[0086] Furthermore, as shown in Figure 3, this embodiment further provides a method for producing hydrogen peroxide, employing the apparatus for electrochemically generating hydrogen peroxide as described in the above embodiment, and including the steps of: drawing liquid into and storing it in a water-absorbing member 3; detecting the operating current between the anode electrode 1 and the cathode electrode 2 and determining whether or not it reaches a predetermined current; and producing hydrogen peroxide if the operating current between the anode electrode 1 and the cathode electrode 2 is greater than the predetermined current.

[0087] During use, the water-absorbing member 3 absorbs and stores liquid, thereby conducting the circuit between the cathode electrode 2 and the anode electrode 1. The operating current between the anode electrode 1 and the cathode electrode 2 is detected. If the operating current between the anode electrode 1 and the cathode electrode 2 is greater than a predetermined current, hydrogen peroxide is produced. If the operating current between the anode electrode 1 and the cathode electrode 2 is less than a predetermined current, the current detection process is repeated by continuously absorbing and storing liquid in the water-absorbing member 3. The hydrogen peroxide production method according to this embodiment produces hydrogen peroxide by having the water-absorbing member 3 adsorb moisture from the air, solving the problem of manually adding electrolyte in conventional hydrogen peroxide production devices.

[0088] Furthermore, if the operating current between the anode electrode 1 and the cathode electrode 2 is greater than a predetermined current, the operating voltages of the cooling device, anode electrode 1, and cathode electrode 2 of the apparatus for electrochemically generating hydrogen peroxide as described in the above embodiment are reduced to make the operating current between the anode electrode 1 and the cathode electrode 2 equal to a predetermined value. This allows for the continuous and efficient generation of hydrogen peroxide, while avoiding increased energy consumption due to excessively high current, and phenomena such as material sintering and corrosion.

[0089] Clearly, the above embodiments are merely illustrative examples and do not limit the embodiments. Those skilled in the art can make various other modifications and changes based on the above description. It is neither necessary nor possible to list all embodiments here. Obvious modifications and changes derived therefrom are also covered within the scope of this application. [Explanation of Symbols]

[0090] 1. Anode electrode; 2. Cathode electrode; 3. Water-absorbing component; 4. Semiconductor cooling piece; 5. Fan; 6. First power supply; 7. Second power supply; 8. Water-absorbing block.

Claims

1. A device for electrochemically generating hydrogen peroxide, Cathode electrode (2), The anode electrode (1) is installed at a distance from the cathode electrode (2), An apparatus for electrochemically generating hydrogen peroxide, characterized by comprising a water-absorbing member (3) placed between the anode electrode (1) and the cathode electrode (2) and in close contact with the anode electrode (1) and the cathode electrode (2).

2. The apparatus for electrochemically generating hydrogen peroxide according to claim 1, further comprising a cooling device that cools toward the space between the anode electrode (1) and the cathode electrode (2) to lower the temperature between the anode electrode (1) and the cathode electrode (2) and condense the liquid.

3. The anode electrode (1) employs a heat-conducting material. The apparatus for electrochemically generating hydrogen peroxide according to claim 1, characterized in that the anode electrode (1) is selectively made of an alloy of one or more of platinum, palladium, ruthenium, rhodium, iridium, osmium, and gold, or the anode electrode (1) employs a boron-doped diamond thin film, or the anode electrode (1) employs a glassy carbon electrode.

4. The apparatus for electrochemically generating hydrogen peroxide according to claim 3, characterized in that a semiconductor cooling piece (4) is placed in contact with the side of the anode electrode (1) that is away from the cathode electrode (2).

5. The apparatus for electrochemically generating hydrogen peroxide according to claim 1, characterized in that the cathode electrode (2) employs a porous conductive material.

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

7. The apparatus for electrochemically generating hydrogen peroxide according to any one of claims 1 to 6, characterized in that the cathode electrode (2) and the anode electrode (1) are horizontally installed plate-shaped members.

8. The apparatus for electrochemically generating hydrogen peroxide according to claim 7, characterized in that the water-absorbing member (3) is a plate-like structure made of a porous water-retaining material, an ion exchange membrane, or a proton exchange membrane.

9. A method for producing hydrogen peroxide, comprising an apparatus for electrochemically generating hydrogen peroxide as described in any one of claims 1 to 8, The steps include: drawing liquid into the water-absorbing member (3) and storing it; A current detection step involves detecting the operating current between the anode electrode (1) and the cathode electrode (2) and determining whether or not a predetermined current is reached. A method for producing hydrogen peroxide, characterized by comprising the step of producing hydrogen peroxide when the operating current between the anode electrode (1) and the cathode electrode (2) is greater than a predetermined current.

10. The method for producing hydrogen peroxide according to claim 9, characterized in that liquid is drawn into and stored in a water-absorbing member (3) between the anode electrode (1) and the cathode electrode (2) by cooling toward the anode electrode (1).

11. The method for producing hydrogen peroxide according to claim 9, further comprising a pre-cooling step of turning off the cooling device, which generates visible ice crystals on the surface of the anode electrode (1) by cooling the area between the anode electrode (1) and the cathode electrode (2).

12. The method for producing hydrogen peroxide according to claim 11, characterized in that if the operating current between the anode electrode (1) and the cathode electrode (2) is less than a predetermined current, the pre-cooling and current detection steps are repeated.

13. A device for electrochemically generating hydrogen peroxide, Cathode electrode (2), The anode electrode (1) is installed at a distance from the cathode electrode (2), An apparatus for electrochemically generating hydrogen peroxide, characterized by comprising a water absorption block (8) installed between the anode electrode (1) and the cathode electrode (2), with both ends connected to the anode electrode (1) and the cathode electrode (2), respectively.

14. The apparatus for electrochemically generating hydrogen peroxide according to claim 13, characterized in that the anode electrode (1) is made of an alloy of one or more of platinum, palladium, ruthenium, rhodium, iridium, osmium, and gold, or the anode electrode (1) is a boron-doped diamond thin film, or the anode electrode (1) is a glassy carbon electrode.

15. The apparatus for electrochemically generating hydrogen peroxide according to claim 13, characterized in that the cathode electrode (2) is made of a porous conductive material.

16. The apparatus for electrochemically generating hydrogen peroxide according to claim 15, characterized in that the cathode electrode (2) is installed horizontally.

17. The apparatus for electrochemically generating hydrogen peroxide according to claim 13, characterized in that the cathode electrode (2) is a foamed nickel plate, a porous graphite plate, a sintered titanium plate, activated carbon felt, or carbon paper.

18. The apparatus for electrochemically generating hydrogen peroxide according to claim 13, characterized in that the water-absorbing block (8) is made of a porous water-retaining material.

19. The apparatus for electrochemically generating hydrogen peroxide according to claim 18, characterized in that the water absorption block (8) is a rod-shaped body.

20. The apparatus for electrochemically generating hydrogen peroxide according to claim 19, characterized in that the water absorption block (8) is installed at multiple intervals between the anode electrode (1) and the cathode electrode (2).

21. The apparatus for electrochemically generating hydrogen peroxide according to claim 13, further comprising a fan (5) that supplies air toward the water absorption block (8) and / or toward the side of the cathode electrode (2) away from the anode electrode (1).

22. The apparatus for electrochemically generating hydrogen peroxide according to any one of claims 13 to 21, characterized in that the anode electrode (1) and the cathode electrode (2) are plate-shaped members installed parallel to each other and spaced apart.

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