A reactor assembly and piezoelectric synergistic electrocatalytic reaction device
By employing a dual-chamber structure and ultrasonic oscillators to refresh active sites in the electrocatalytic hydrogen production device, combined with piezoelectric potential energy to drive electron separation, the problems of electrode passivation and high electron recombination rate are solved, achieving high catalytic activity and energy utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING PERFECTLIGHT SCI & TECH
- Filing Date
- 2025-05-26
- Publication Date
- 2026-06-02
AI Technical Summary
In existing electrocatalytic hydrogen production technologies, the adsorption of bubbles on the electrode surface leads to passivation of reactive active sites, increases overpotential, and results in a high electron-hole recombination rate on the catalyst surface, which in turn reduces energy utilization.
The reactor assembly and piezoelectric synergistic electrocatalytic reaction device are adopted, including an anode assembly, a cathode assembly, a diaphragm and an ultrasonic transducer, forming a dual-chamber structure. The ultrasonic transducer is connected to the electrode assembly. The ultrasonic waves generate mechanical stress to refresh the active sites, and combined with the piezoelectric potential energy, the electron and hole separation is driven to promote electron transfer.
It effectively avoids catalyst passivation, improves catalytic activity, reduces electron-hole recombination rate, enhances redox reaction efficiency, and improves energy utilization.
Smart Images
Figure CN224313675U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrocatalysis technology, specifically to a reactor component and a piezoelectric synergistic electrocatalytic reaction device. Background Technology
[0002] With the escalating global energy crisis and environmental pollution, developing efficient and green catalytic technologies has become a crucial goal for the scientific community. Electrocatalysis under ultrasonic fields is a novel catalytic method that has emerged in recent years. Its core lies in using mechanical stress (such as ultrasound, natural vibration, and water flow fluctuations) to induce a polarized electric field within piezoelectric materials, promoting the separation of electron-hole pairs and thus enhancing the efficiency of redox reactions. By driving the reaction with mechanical energy (such as ultrasound, natural vibration, and water flow fluctuations), it converts mechanical energy into chemical energy, providing innovative solutions for environmental governance and energy conversion.
[0003] Electrolysis of water to produce hydrogen is a technology that uses electricity to split water into hydrogen and oxygen, and is a core pathway for achieving "green hydrogen" production. By applying an external current, water molecules undergo an electrochemical reaction, producing oxygen (O2) at the anode and hydrogen (H2) at the cathode. The key advantages of this technology are the high purity of the hydrogen and zero carbon emissions (if powered by renewable energy), making it a crucial component of future clean energy systems.
[0004] Currently, existing electrocatalytic hydrogen production technologies face the following bottlenecks:
[0005] (1) Adsorption of bubbles on the electrode surface leads to passivation of reactive sites and an increase in overpotential;
[0006] (2) The high electron-hole recombination rate on the catalyst surface leads to a decrease in energy utilization. Utility Model Content
[0007] The purpose of this invention is to provide a reactor component and a piezoelectric synergistic electrocatalytic reaction device to solve the aforementioned technical problems in the prior art; the preferred technical solutions among the various technical solutions provided by this invention can produce numerous technical effects, as detailed below.
[0008] To achieve the above objectives, the present invention provides the following technical solution:
[0009] This utility model provides a reactor assembly, including an anode assembly, a diaphragm, a cathode assembly, and ultrasonic transducers, wherein: the anode assembly and the cathode assembly are respectively disposed on both sides of the diaphragm, and both the anode assembly and the cathode assembly are provided with a liquid inlet and a liquid outlet; the number of ultrasonic transducers is set to two, and the two ultrasonic transducers are respectively connected to the anode assembly and the cathode assembly.
[0010] Preferably, the anode assembly includes an anode plate and a first electrode, and the cathode assembly includes a cathode plate and a second electrode, wherein: the anode plate and the cathode plate are disposed opposite to each other on both sides of the diaphragm, the anode plate and the cathode plate are detachably connected, the first electrode is disposed between the anode plate and the diaphragm, and the second electrode is disposed between the cathode plate and the diaphragm.
[0011] Preferably, the anode plate has a first flow channel on its end face facing the first electrode, and a first inlet and a first outlet are respectively connected to the two ends of the first flow channel on the anode plate, and a first terminal is provided on the anode plate; the cathode plate has a second flow channel on its end face facing the second electrode, and a second inlet and a second outlet are respectively connected to the two ends of the second flow channel on the cathode plate, and a second terminal is provided on the cathode plate.
[0012] Preferably, the anode assembly includes a first sealing ring, and a first sealing groove is provided on the end face of the anode plate outside the first flow channel, with the first sealing ring disposed in the first sealing groove; the cathode assembly includes a second sealing ring, and a second sealing groove is provided on the end face of the cathode plate outside the second flow channel, with the second sealing ring disposed in the second sealing groove.
[0013] Preferably, the anode assembly includes a first sealing gasket disposed between the anode plate and the diaphragm, and a first receiving groove adapted to the first electrode is provided through the middle of the first sealing gasket, and the first electrode is disposed in the first receiving groove; the cathode assembly includes a second sealing gasket disposed between the cathode plate and the diaphragm, and a second receiving groove adapted to the second electrode is provided through the middle of the second sealing gasket, and the second electrode is disposed in the second receiving groove.
[0014] Preferably, the reactor assembly further includes two connectors, and the two ultrasonic transducers are respectively connected to the anode assembly and the cathode assembly through the two connectors.
[0015] This invention provides a piezoelectric synergistic catalytic reaction device, comprising any of the aforementioned reactor components.
[0016] Preferably, the piezoelectric synergistic electrocatalytic reaction device includes a control system, which is electrically connected to the reactor assembly.
[0017] Preferably, the control system includes a power supply component, a power adjustment board, a transducer drive board, and a temperature display board, wherein the power adjustment board, the transducer drive board, and the temperature display board are all electrically connected to the power supply component, and the transducer drive board is connected to the corresponding ultrasonic transducer.
[0018] Preferably, the piezoelectric synergistic electrocatalytic reaction device includes a heat exchanger for cooling the piezoelectric synergistic electrocatalytic reaction device.
[0019] The reactor assembly and piezoelectric synergistic electrocatalytic reaction device provided by this utility model have at least the following beneficial effects:
[0020] The reactor assembly includes an anode assembly, a diaphragm, a cathode assembly, and an ultrasonic transducer. The anode assembly and the cathode assembly are respectively disposed on both sides of the diaphragm, forming a dual-chamber electrode tank structure separated by the diaphragm, which enables independent reactions of the cathode and anode.
[0021] Both the anode and cathode assemblies are provided with inlets and outlets. Two ultrasonic transducers are connected to the anode and cathode assemblies respectively. During operation, the electrolyte enters the anode and cathode assemblies through their respective inlets and flows out through their respective outlets. During this process, the catalytic electrode and electrolyte come into contact. Under the mechanical stress generated by the electrode, voltage, and ultrasound, redox reactions occur and are rapidly desorbed and separated. The reaction products are mixed in the electrolyte and flow out with it, facilitating subsequent gas-liquid separation externally. In this process, the ultrasonic transducers provide ultrasound to generate periodic mechanical stress, keeping the catalyst in a dynamic strain state, thereby continuously refreshing surface active sites and preventing catalyst passivation. Simultaneously, under the action of mechanical stress, the adsorbed substances on the electrode surface can be rapidly desorbed, promoting electron transfer and improving catalytic activity.
[0022] This invention utilizes an anode assembly, a cathode assembly, and a diaphragm to form a dual-chamber structure separated by the diaphragm, enabling independent reactions at the anode and cathode. Two ultrasonic transducers effectively prevent catalyst passivation and facilitate rapid desorption of adsorbed substances on the electrode assembly surface, promoting electron transfer and enhancing catalytic activity.
[0023] This invention employs piezoelectric catalysis, where piezoelectric potential energy drives electrons and holes to move forward in opposite directions, thereby reducing the electron-hole recombination rate on the surface and improving the electron supply efficiency at low catalytic active sites. It can also be coupled with other energy forms such as light, heat, and electric fields to achieve synergistic effects of multiple mechanisms, breaking through the efficiency bottleneck of single catalytic technologies. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 This is a schematic diagram of the structure of this utility model;
[0026] Figure 2 This is a schematic diagram of the assembly from one perspective of this utility model;
[0027] Figure 3 This is an assembly diagram from another perspective of this utility model;
[0028] Figure 4 This is a schematic diagram of the structure of the anode plate / cathode plate of this utility model;
[0029] Figure 5 This is a schematic diagram of the structure of the first sealing gasket / second sealing gasket of this utility model;
[0030] Figure 6 This is a circuit diagram of the control system of this utility model.
[0031] Figure Labels
[0032] 1. Anode assembly; 11. Anode plate; 111. First flow channel; 112. First sealing groove; 12. First electrode; 13. First sealing ring; 14. First sealing gasket; 141. First receiving groove; 2. Cathode assembly; 21. Cathode plate; 211. Second flow channel; 212. Second sealing groove; 22. Second electrode; 23. Second sealing ring; 24. Second sealing gasket; 241. Second receiving groove; 3. Ultrasonic transducer; 31. First ultrasonic transducer; 32. Second ultrasonic transducer; 4. Diaphragm; 5. First connector; 6. Second connector; 7. Control system; 71. Power supply assembly; 72. First power adjustment board; 73. First transducer drive board; 74. Second power adjustment board; 75. Second transducer drive board; 76. Temperature display board. Detailed Implementation
[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0034] Example 1:
[0035] This utility model provides a reactor assembly, referenced Figures 1 to 5 As shown, the reactor assembly includes an anode assembly 1, a cathode assembly 2, an ultrasonic transducer 3, and a diaphragm 4.
[0036] The anode assembly 1 and the cathode assembly 2 are respectively arranged on both sides of the diaphragm 4, forming a double-chamber structure separated by the diaphragm 4 in the middle, so that the anode and cathode can react independently; both the anode assembly 1 and the cathode assembly 2 are provided with liquid inlet and liquid outlet.
[0037] The number of ultrasonic transducers 3 is set to two, namely the first ultrasonic transducer 31 and the second ultrasonic transducer 32. The first ultrasonic transducer 31 is connected to the anode assembly 1, and the second ultrasonic transducer 32 is connected to the cathode assembly 2.
[0038] During operation, under the action of the external circulation pump, the electrolyte enters the anode assembly 1 and the cathode assembly 2 through the corresponding inlet, and then flows out through the corresponding outlet.
[0039] As the electrolyte flows through the reactor assembly, the catalytic electrode comes into contact with the electrolyte. Under the mechanical stress generated by the electrode, voltage, and ultrasound, redox reactions occur respectively, and the electrolyte is rapidly desorbed and separated. The reaction products are mixed in the circulating electrolyte, forming a gas-liquid fluid that flows out with the electrolyte and is then separated externally.
[0040] In the aforementioned process, the first ultrasonic transducer 31 and the second ultrasonic transducer 32 can provide ultrasonic waves to generate periodic mechanical stress, so that the catalyst is in a dynamic strain state, continuously refreshing the surface active sites and avoiding catalyst passivation. At the same time, under the action of mechanical stress, the adsorbed substances on the electrode surface can be rapidly desorbed, promoting electron transfer and thus improving catalytic activity.
[0041] Example 2:
[0042] Example 2 is based on Example 1:
[0043] like Figures 1 to 5 As shown, the anode assembly 1 includes an anode plate 11 and a first electrode 12, and the cathode assembly 2 includes a cathode plate 21 and a second electrode 22.
[0044] The anode plate 11 and the cathode plate 21 are disposed opposite each other on both sides of the diaphragm 4. The anode plate 11 and the cathode plate 21 are detachably connected. The first electrode 12 corresponds to the middle position of the anode plate 11 and is disposed between the anode plate 11 and the diaphragm 4. The second electrode 22 corresponds to the middle position of the cathode plate 21 and is disposed between the cathode plate 21 and the diaphragm 4.
[0045] The anode plate 11 and the cathode plate 21 provide conductivity on the one hand, and promote solution flow on the other.
[0046] The first electrode 12 and the second electrode 22 are used to enhance charge separation and provide additional potential regulation.
[0047] As an optional implementation, a first flow channel 111 is provided at the middle position on the end face of the anode plate 11 facing the first electrode 12, and a first liquid inlet and a first liquid outlet are respectively provided on the anode plate 11 and connected to the two ends of the first flow channel 111.
[0048] A second flow channel 211 is provided at the middle position on the end face of the cathode plate 21 facing the second electrode 22. A second liquid inlet and a second liquid outlet are respectively provided on the cathode plate 21 and connected to the two ends of the second flow channel 211.
[0049] Both the first flow channel 111 and the second flow channel 211 are micro-sized flow channels. During operation, the electrolyte can flow at high speed in the flow channels and carry the product out of the reactor. At the same time, the anode plate 11 is provided with a first terminal and the cathode plate 21 is provided with a second terminal for the input of electrical energy, and current can be applied to form a circuit.
[0050] As an optional implementation, the anode assembly 1 includes a first sealing ring 13. A first sealing groove 112 is provided on the end face of the anode plate 11 around the outer side of the first flow channel 111. The first sealing ring 13 is disposed in the first sealing groove 112 and is securely installed.
[0051] The cathode assembly 2 includes a second sealing ring 23. A second sealing groove 212 is provided on the end face of the cathode plate 21 outside the second flow channel 211. The second sealing ring 23 is disposed in the second sealing groove 212 and is installed securely.
[0052] As an optional implementation, the anode assembly 1 includes a first sealing gasket 14, the shape of which is adapted to the shape of the anode plate 11, and is disposed between the anode plate 11 and the diaphragm 4. A first receiving groove 141 adapted to the first electrode 12 is disposed through the middle of the first sealing gasket 14, and the first electrode 12 is disposed in the first receiving groove 141.
[0053] The cathode assembly 2 includes a second sealing gasket 24, the shape of which is adapted to the shape of the cathode plate 21. It is disposed between the cathode plate 21 and the diaphragm 4. A second receiving groove 241 adapted to the second electrode 22 is disposed through the middle of the second sealing gasket 24. The second electrode 22 is disposed in the second receiving groove 241.
[0054] The first sealing ring 13, the second sealing ring 23, the first sealing gasket 14, and the second sealing gasket 24 work together to achieve a significant sealing effect.
[0055] As an optional implementation, the reactor assembly further includes two connectors, namely a first connector 5 and a second connector 6.
[0056] The first ultrasonic transducer 31 is connected to the anode plate 11 via the first connector 5, and the second ultrasonic transducer 32 is connected to the cathode plate 21 via the second connector 6.
[0057] As an optional implementation, the anode plate 11, the first sealing gasket 14, the second sealing gasket 24 and the cathode plate 21 are provided with connecting holes at corresponding positions, and threaded fasteners pass through the connecting holes, thereby realizing the detachable connection of the anode plate 11, the first sealing gasket 14, the second sealing gasket 24 and the cathode plate 21.
[0058] Example 3
[0059] Example 3 is based on Example 2:
[0060] This invention provides a piezoelectric synergistic electrocatalytic reaction device, referenced... Figures 1 to 6 As shown, the piezoelectric synergistic electrocatalytic reaction device includes the reactor assembly.
[0061] The piezoelectric synergistic electrocatalytic reaction device also includes a control system 7, which is electrically connected to the reactor assembly. Specifically, the control system 7 is electrically connected to the ultrasonic transducer 3 and is used to control the operation of the ultrasonic transducer 3.
[0062] As an optional implementation, the control system 7 includes a power supply component 71, a power adjustment board, an oscillator drive board, a temperature display board 76, and a keypad. The power adjustment board, the oscillator drive board, the temperature display board 76, and the keypad are all electrically connected to the power supply component 71, and the oscillator drive board is connected to the corresponding ultrasonic oscillator 3.
[0063] With this configuration, the control system 7 can control the ultrasonic transducer 3 to operate according to the set power and frequency, and can further control the running time and operating temperature.
[0064] Specifically, the number of the power adjustment board, the oscillator drive board, and the keypad board are all set to two, namely a first power adjustment board 72, a first oscillator drive board 73, a second power adjustment board 74, a second oscillator drive board 75, a first keypad board, and a second keypad board. The control system 7 also includes a first power switch and a second power switch for corresponding ultrasonic oscillator switches, as well as a first potentiometer and a second potentiometer electrically connected to the first power adjustment board 72 and the second power adjustment board 74, respectively.
[0065] As an optional implementation, the piezoelectric synergistic electrocatalytic reaction device includes a heat exchanger for cooling the piezoelectric synergistic electrocatalytic reaction device, so that the device operates within a reasonable temperature range.
[0066] The heat exchanger is existing technology, so its detailed structure and accompanying drawings will not be described in detail.
[0067] In the description of this application, it should be understood that the terms "upper", "lower", "inner", "outer", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0068] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" or "several" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0069] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0070] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A reactor assembly, characterized by, Includes an anode assembly, a diaphragm, a cathode assembly, and an ultrasonic transducer, wherein: The anode assembly and the cathode assembly are respectively disposed on both sides of the diaphragm, and both the anode assembly and the cathode assembly are provided with a liquid inlet and a liquid outlet; The number of ultrasonic transducers is set to two, and the two ultrasonic transducers are respectively connected to the anode assembly and the cathode assembly.
2. The reactor assembly of claim 1, wherein, The anode assembly includes an anode plate and a first electrode, and the cathode assembly includes a cathode plate and a second electrode, wherein: The anode plate and the cathode plate are disposed opposite each other on both sides of the diaphragm. The anode plate and the cathode plate are detachably connected. The first electrode is disposed between the anode plate and the diaphragm, and the second electrode is disposed between the cathode plate and the diaphragm.
3. The reactor assembly of claim 2, wherein, A first flow channel is provided on the end face of the anode plate facing the first electrode. A first liquid inlet and a first liquid outlet are respectively provided on the anode plate and connected to the two ends of the first flow channel. A first terminal is provided on the anode plate. A second flow channel is provided on the end face of the cathode plate facing the second electrode. A second liquid inlet and a second liquid outlet are respectively provided on the cathode plate and connected to the two ends of the second flow channel. A second terminal is provided on the cathode plate.
4. The reactor assembly of claim 3, wherein, The anode assembly includes a first sealing ring, and a first sealing groove is provided on the end face of the anode plate on the outer side of the first flow channel, and the first sealing ring is disposed in the first sealing groove; The cathode assembly includes a second sealing ring, and a second sealing groove is provided on the end face of the cathode plate on the outer side of the second flow channel, and the second sealing ring is disposed in the second sealing groove.
5. The reactor assembly of claim 3, wherein, The anode assembly includes a first sealing gasket disposed between the anode plate and the diaphragm. A first receiving groove adapted to the first electrode is provided through the middle of the first sealing gasket, and the first electrode is disposed in the first receiving groove. The cathode assembly includes a second sealing gasket disposed between the cathode plate and the diaphragm. A second receiving groove adapted to the second electrode is provided through the middle of the second sealing gasket, and the second electrode is disposed in the second receiving groove.
6. The reactor assembly according to claim 2, characterized in that, The reactor assembly also includes two connectors, and the two ultrasonic transducers are respectively connected to the anode assembly and the cathode assembly through the two connectors.
7. A piezoelectric synergistic electrocatalytic reaction device, characterized in that, Includes the reactor assembly described in any one of claims 1 to 6.
8. The piezoelectric synergistic electrocatalytic reaction device according to claim 7, characterized in that, The piezoelectric synergistic electrocatalytic reaction device includes a control system, which is electrically connected to the reactor assembly.
9. The piezoelectric synergistic electrocatalytic reaction device according to claim 8, characterized in that, The control system includes a power supply component, a power regulation board, an oscillator drive board, and a temperature display board, wherein: The power adjustment board, the vibrator drive board, and the temperature display board are all electrically connected to the power supply component, and the vibrator drive board is connected to the corresponding ultrasonic vibrator.
10. The piezoelectric synergistic electrocatalytic reaction device according to claim 7, characterized in that, The piezoelectric synergistic electrocatalytic reaction device includes a heat exchanger for cooling the device.