In-situ infrared electrochemical detection device

Abstract

The utility model discloses an in-situ infrared electrochemical detection device which comprises a cavity and a bottom plate arranged at the bottom of the cavity, an observation window is arranged on the side face of the cavity, a first opening is formed in the top end of the cavity, an upper nut is arranged above the first opening, the upper nut is in threaded connection with the cavity, and a second opening is formed in the bottom of the cavity. A reserved vent hole and a plurality of cylindrical insertion holes are formed in the top end of the upper nut; the bottom plate is connected with the bottom of the cavity through a fast-inserting type horizontal buckle, a second opening is formed in the center of the bottom of the cavity, and the bottom plate is provided with a center clamping groove communicated with the second opening. The in-situ infrared electrochemical detection device disclosed by the utility model is durable in material, simple in structure and simple in disassembly and assembly steps.

Description

Technical Field

[0001] The utility model relates to the technical field of in-situ electrochemical infrared spectroscopy detection and analysis, and in particular to an in-situ infrared electrochemical detection device. Background Art

[0002] In-situ electrochemical infrared spectroscopy combines infrared spectroscopy characterization with electrochemical detection methods. By using the fingerprint characteristics and surface selection rules of infrared spectroscopy, it can specifically identify the bonding modes and concentration changes of reaction species during the electrochemical reaction process, and obtain the physical structure and chemical change characteristics of the electrode surface and interface. It can detect various substances participating in the electrochemical reaction in real time, qualitatively and quantitatively, so as to obtain real-time change information of the adsorption, orientation, bonding, dissociation of species at the electrode / electrolyte surface and interface, and provide favorable evidence for studying the electrochemical reaction process and mechanism and establishing the structure-activity relationship between the structure and performance of electrode materials.

[0003] In the prior art, the mainstream glass reaction cells for in-situ electrochemistry often have many problems, such as relatively complex reaction cell structures, cumbersome assembly steps, relatively poor sealing performance with a risk of liquid leakage, and the risk of breakage for reaction cells made of glass materials. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an in-situ infrared electrochemical detection device with a simple structure, easy assembly steps, high sealing performance, and durable and non-fragile materials.

[0005] To achieve the above purpose, the utility model provides an in-situ infrared electrochemical detection device, which includes a cavity and a bottom plate arranged at the bottom of the cavity. An observation window is arranged on the side surface of the cavity. A first opening is arranged at the top end of the cavity. Above the first opening, there is an upper nut, and the upper nut is threadedly connected to the cavity. The top end of the upper nut is provided with a reserved ventilation hole and a plurality of cylindrical jacks;

[0006] The bottom plate is connected to the bottom of the cavity through a quick-insert horizontal buckle. A second opening is arranged at the center position of the bottom of the cavity, and the bottom plate is provided with a central card slot communicated with the second opening.

[0007] Preferably, the materials of the cavity and the upper nut are both polyetheretherketone.

[0008] Preferably, an internal thread is arranged on the inner side of the upper nut, and an external thread is arranged on the outer surface of the cavity. The upper nut is connected to the cavity through the internal thread and the external thread.

[0009] Preferably, a plurality of connection holes are arranged at the bottom of the cavity, and the quick-insert horizontal buckle is connected to the cavity through the connection holes.

[0010] Preferably, the quick-insert horizontal buckle includes a clip, a fixing screw and a buckle. The clip is embedded and connected to the annular groove between the clip and the buckle. The buckle is arranged on the upper surface of the bottom plate. A plurality of screw holes are arranged on the bottom plate. The fixing screw passes through the screw holes and is threadedly connected to the buckle. The bottom diameter of the buckle is equal to the diameter of the connection hole.

[0011] Preferably, the number of the cylindrical jacks is two, and the cylindrical jacks are respectively inserted with a counter electrode and a reference electrode.

[0012] Preferably, a sealing gasket is arranged on the inner ring edge of the second opening.

[0013] Preferably, a silicon crystal is arranged in the central card slot.

[0014] Preferably, a copper working electrode is arranged on the upper surface of the bottom plate, and one end of the copper working electrode is closely attached to the upper surface of the silicon crystal.

[0015] Therefore, the present utility model adopts the above-mentioned in-situ infrared electrochemical detection device, and has the following technical effects:

[0016] (1) The structure of the present utility model is simple, and the assembly steps are easy.

[0017] (2) The present utility model has high sealing performance and will not produce liquid leakage.

[0018] (3) The production materials of the present utility model are durable and not easy to break. Description of the Drawings

[0019] Figure 1 is an overall schematic diagram of an embodiment of an in-situ infrared electrochemical detection device of the present utility model;

[0020] Figure 2 is a schematic diagram of a cavity of an embodiment of an in-situ infrared electrochemical detection device of the present utility model;

[0021] Figure 3 is a schematic diagram of an upper nut of an embodiment of an in-situ infrared electrochemical detection device of the present utility model;

[0022] Figure 4 is a schematic diagram of a quick-insert horizontal buckle of an embodiment of an in-situ infrared electrochemical detection device of the present utility model;

[0023] Figure 5 is a schematic diagram of the bottom of a cavity of an embodiment of an in-situ infrared electrochemical detection device of the present utility model;

[0024] Figure 6 is a schematic diagram of a bottom plate of an embodiment of an in-situ infrared electrochemical detection device of the present utility model;

[0025] Figure 7 It is a schematic diagram of the bottom plate connecting part of an embodiment of an in-situ infrared electrochemical detection device of the present utility model.

[0026] Reference numerals

[0027] 1. Cavity; 2. Observation window; 3. Upper nut; 4. Cylindrical jack; 5. Reserved ventilation hole; 6. Bottom plate; 7. Quick-insert horizontal buckle; 71. Clip; 72. Buckle; 73. Fixing screw; 8. Internal thread; 9. External thread; 10. Connection hole; 11. Counter electrode; 12. Reference electrode; 13. Sealing washer; 14. Central card slot; 15. Copper working electrode; 16. Silicon crystal; 17. Screw hole; 18. First opening; 19. Second opening. Specific implementation manners

[0028] The technical solution of the present utility model will be further described below with reference to the drawings and embodiments.

[0029] Unless otherwise defined, the technical terms or scientific terms used in the present utility model should have the ordinary meanings understood by those with ordinary skills in the field to which the present utility model belongs. The "first", "second" and similar words used in the present utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. The words such as "including" or "comprising" mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. The words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The "upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0030] Embodiment 1

[0031] As Figures 1-3As shown in the figure, an in-situ infrared electrochemical detection device includes a cavity 1, which is used to hold the electrolyte required for the operation. There is a first opening 18 at the top of the cavity 1, and an upper nut 3 is arranged above the first opening 18. The cavity 1 and the upper nut 3 are made of polyether ether ketone, which has good high temperature resistance, corrosion resistance, self-lubrication and hydrolysis resistance, and has relatively high toughness and rigidity, and is not easy to break. There is an internal thread 8 on the inner side of the upper nut 3, and an external thread 9 is arranged on the outer surface of the cavity 1. The upper nut 3 is connected to the cavity 1 through the internal thread 8 and the external thread 9. There are two cylindrical jacks 4 and a reserved vent hole 5 at the top of the upper nut 3. The gas tube can be inserted into the cavity 1 through the reserved vent hole 5. The counter electrode 11 and the reference electrode 12 are respectively inserted into the two cylindrical jacks 4. Both the gas tube and the two electrodes should be inserted below the liquid level of the electrolyte.

[0032] There is an observation window 2 on the side of the cavity 1. The observation window 2 is convenient for manual observation of whether the lower end of the electrode is placed below the liquid level of the electrolyte, and can also observe whether the catalyst on the silicon crystal 16 is stably present during the test, ensuring that the catalyst does not float in the electrolyte. At the same time, the gas flow rate can be judged by observing the bubble emergence around the gas tube.

[0033] As Figures 4-7 shown in the figure, the bottom of the cavity 1 is connected to a bottom plate 6, and the bottom plate 6 is connected to the bottom of the cavity 1 through a quick-insert horizontal buckle 7. Specifically, the quick-insert horizontal buckle 7 includes a clip 71, a fixing screw 73 and a buckle 72. The annular groove between the clip 71 and the buckle 72 is embedded and connected. The buckle 72 is arranged on the upper surface of the bottom plate 6, and screw holes 17 are correspondingly arranged on the upper surface of the bottom plate 6. The fixing screw 73 passes through the screw holes 17 and is threadedly connected to the buckle 72. There are several connection holes 10 at the bottom of the cavity 1, and the diameter of the bottom of the buckle 72 is equal to the diameter of the connection holes 10.

[0034] During actual use, align the connection holes 10 with the buckle 72 one by one, then insert the cavity 1 so that the buckle 72 penetrates through the connection holes 10, and it can be clamped through the penetration end of the clip 71 and the buckle 72. This connection method is simple to operate and convenient to use, avoiding the cumbersome steps of assembling multiple screws.

[0035] There is a second opening 19 at the center of the bottom of the cavity 1. A sealing gasket 13 is arranged on the inner ring edge of the second opening 19. The sealing gasket 13 improves the sealing performance of the bottom of the cavity 1 and avoids liquid leakage. There is a central card slot 14 at the center of the bottom plate 6. The silicon crystal 16 can be placed in the central card slot 14 before detection. There is a copper working electrode 15 on the upper surface of the bottom plate 6, and one end of the copper working electrode 15 is closely attached to the upper surface of the silicon crystal 16.

[0036] The electrode composition of the device includes a copper working electrode 15, a reference electrode 12, and a counter electrode 11. The reference electrode 12 precisely controls the electrode potential across the copper working electrode 15, and the counter electrode 11 conducts current to form a circuit. The three-electrode system contains two circuits. One circuit is composed of the copper working electrode 15 and the reference electrode 12, which is used to test the electrochemical reaction process of the copper working electrode 15. The other circuit is composed of the copper working electrode 15 and the counter electrode 11, which functions to transfer electrons to form a circuit.

[0037] Workflow

[0038] First, in the preparation stage, place the silicon crystal 16 into the central card slot 14. After one end of the copper working electrode 15 is closely attached to the upper surface of the silicon crystal 16, place the sealing gasket 13 at the inner ring edge of the second opening 19 of the cavity 1. After aligning the second opening 19 with the silicon crystal 16, connect the cavity 1 and the bottom plate 6 using the quick-insert horizontal buckle 7. Secondly, thread the upper nut 3 onto the cavity 1. Insert the counter electrode 11 and the reference electrode 12 into the cylindrical jacks 4 at the top of the upper nut 3. Use a rubber-tipped dropper to add electrolyte into the cavity 1, and observe through the observation window 2 until the lower ends of the two electrodes are below the electrolyte liquid level, and check whether the device leaks. Finally, place the prepared device on the detection component for detection. Insert the gas tube through the reserved vent hole 5 below the electrolyte liquid level, introduce carbon dioxide gas to saturate the electrolyte, and the detection result can be obtained by detecting the counter electrode combination.

[0039] Therefore, the present utility model adopts the above-mentioned in-situ infrared electrochemical detection device, which has a simple structure, easy assembly steps, high sealing performance, and durable materials that are not easily broken.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that they can still modify or equivalently replace the technical solutions of the present utility model, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present utility model.

Claims

1. An in-situ infrared electrochemical detection device, characterized in that: It includes a cavity and a bottom plate arranged at the bottom of the cavity. An observation window is arranged on the side of the cavity. A first opening is arranged at the top of the cavity. An upper nut is arranged above the first opening. The upper nut is threadedly connected to the cavity. A reserved ventilation hole and several cylindrical jacks are arranged at the top of the upper nut. The bottom plate is connected to the bottom of the cavity through a quick-insert horizontal buckle. A second opening is arranged at the center position of the bottom of the cavity. The bottom plate is provided with a central card slot communicated with the second opening.

2. The in-situ infrared electrochemical detection device according to claim 1, characterized in that: The materials of the cavity and the upper nut are both polyetheretherketone.

3. An in-situ infrared electrochemical detection device according to claim 1, characterized in that: Internal threads are arranged on the inner side of the upper nut, and external threads are arranged on the outer surface of the cavity. The upper nut is connected through the internal threads and the external threads.

4. An in-situ infrared electrochemical detection device according to claim 1, characterized in that: Several connecting holes are arranged at the bottom of the cavity. The quick-insert horizontal buckle is connected to the cavity through the connecting holes.

5. An in-situ infrared electrochemical detection device according to claim 4, characterized in that: The quick-insert horizontal buckle includes a clip, a fixing screw and a buckle. The annular groove between the clip and the buckle is embedded and connected. The buckle is arranged on the upper surface of the bottom plate. Several screw holes are arranged on the bottom plate. The fixing screw passes through the screw holes and is threadedly connected to the buckle. The bottom diameter of the buckle is equal to the diameter of the connecting hole.

6. The in-situ infrared electrochemical detection device according to claim 1, wherein: The number of the cylindrical jacks is two. A counter electrode and a reference electrode are respectively inserted into the cylindrical jacks.

7. An in-situ infrared electrochemical detection device according to claim 1, characterized in that: A sealing gasket is arranged on the inner ring edge of the second opening.

8. An in-situ infrared electrochemical detection device according to claim 1, characterized in that: A silicon crystal is arranged in the central card slot.

9. An in-situ infrared electrochemical detection device according to claim 8, characterized in that: A copper working electrode is arranged on the upper surface of the bottom plate. One end of the copper working electrode is closely attached to the upper surface of the silicon crystal.

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