An electrolytic cell device for in-situ infrared testing of magnetic fields

Abstract

The present invention provides an electrolytic cell device for in-situ infrared testing of a magnetic field, and specifically relates to the technical field of magneto-electrochemical reaction equipment. The electrolytic cell device comprises a base carrier plate, a base ring, a reaction cell, a permanent magnet, and a movable bracket. The base carrier plate is connected to the base ring by a nut, and the base ring is connected to the reaction chamber by screwing. The base carrier plate and the base ring fit tightly to ensure their sealing. The reaction chamber is in the shape of a circular groove for easy placement of a magnet. The distance between the bottom of the groove and the working electrode is close enough to ensure sufficient magnetic field strength, so that the magnetic field can act well on the electrocatalytic reaction process. The catalyst is loaded on the cross section of the cylindrical electrode. The permanent magnet is fixed by suspension of the bracket to reduce the load-bearing pressure on the groove surface of the reaction cell, and the crossbeam of the bracket can slide to adjust the position.

Description

Technical Field

[0001] The invention belongs to the technical field of electrochemical reaction equipment, and in particular relates to an electrolytic cell device for in-situ infrared testing of a magnetic field. Background Art

[0002] Electrocatalytic reaction refers to the use of an external electric current to promote a chemical reaction using a catalyst as a medium. The role of the catalyst is mainly to reduce the reaction energy barrier and promote the rapid occurrence of the reaction. However, in the entire electrocatalytic process, many aspects of regulation are involved, such as mass transfer, charge transfer, heat transfer and chemical reaction process. Many research works have been devoted to optimizing and improving the performance of electrocatalysis. The efficiency of the electrocatalytic reaction can be improved by adjusting the geometric structure and active sites of the electrocatalyst; the kinetic properties of the electrocatalysis can be improved by adjusting the type and concentration of the electrolyte; and the kinetic mass transfer can be improved by adjusting the reaction device.

[0003] Low reaction kinetics has always been one of the main reasons limiting the development of catalytic reaction engineering. Promoting reaction kinetics and improving mass transfer during the reaction process through the action of a magnetic field is a very feasible method. In addition, electrocatalytic reactions under a magnetic field environment are becoming a cutting-edge scientific research direction, and suitable experimental research equipment is urgently needed to support electrocatalytic research under a magnetic field. Taking into account current research needs, the present invention provides an electrolytic cell device and application for in-situ infrared electrochemistry under a magnetic field to study electrocatalytic reactions. The addition of a magnetic field greatly promotes the kinetic mass transfer of the reaction, improves the reaction efficiency, and increases the utilization rate of electrical energy.

[0004] It is true that previous research has made great progress and made an indelible contribution to the research of electrocatalysis. However, the existing device (CN113774408A) is not sufficient to meet the requirements of in-situ infrared testing under a magnetic field, and a new research device is needed. Summary of the invention

[0005] One of the purposes of the present invention is to provide an in-situ infrared electrolytic cell device for a magnetic field, so as to provide a suitable research means for in-situ electrocatalytic research in a magnetic field environment.

[0006] In order to achieve the above-mentioned purpose of the present invention, the following technical solutions are particularly adopted:

[0007] The present invention provides an in-situ infrared electrolysis cell device for a magnetic field, comprising a base carrier plate, a base ring, a reaction cell, a permanent magnet and a movable bracket;

[0008] The base carrier plate is made of glass or plastic.

[0009] Preferably, the base carrier is made of polytetrafluoroethylene.

[0010] The catalyst working electrode placed at the base carrier plate is cylindrical in shape, and the catalyst is loaded on the cross section of the working electrode.

[0011] The base carrier plate is a working electrode support platform, which is used to support a cylindrical working electrode.

[0012] A working electrode is fixed on the base carrier plate. The working electrode body is an optical path channel. Infrared light can be injected into the working electrode from one side and then emitted from the other side through the working electrode.

[0013] The base ring is made of glass or plastic.

[0014] Preferably, the base carrier is made of polytetrafluoroethylene.

[0015] The positions, sizes, etc. of the eight threaded holes of the base carrier plate and the eight threaded holes of the base ring are consistent.

[0016] The base carrier plate and the base ring are connected by 8 plastic nuts;

[0017] Preferably, the nut is made of polytetrafluoroethylene.

[0018] The base ring is threaded, and its thread matches the thread of the reaction tank to ensure that the two can be screwed together.

[0019] The reaction pool is made of quartz glass.

[0020] The reaction pool is surrounded by a reference electrode hole, an air inlet, an air outlet, and a counter electrode hole. The glass pipes where the reference electrode hole, the air inlet, and the counter electrode hole are located should have a certain inclination angle of 45 to 80 degrees with the horizontal plane, and the direction of the glass pipe where the air outlet is located should be kept perpendicular to the horizontal plane.

[0021] The outer openings of the upper pipes of the reaction pool are all threaded and equipped with corresponding threaded caps, so that the reference electrode, air inlet, air outlet, and counter electrode can be sealed and installed.

[0022] The middle of the reaction pool is a circular groove for placing a permanent magnet.

[0023] The permanent magnet uses a cylindrical neodymium iron boron magnet, and the permanent magnet can be suspended and positioned by ropes.

[0024] The movable bracket is made of austenitic stainless steel, and the crossbeam can slide along the outer frame bracket to adjust the spacing.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The present invention provides an in-situ infrared electrolysis cell device for magnetic field, in which a strong magnet is placed in the groove of the reaction cell, and a strong magnetic field can be applied on the surface of the working electrode catalyst, which can have a significant effect on the charged ions in the electrolyte, promote reaction kinetics, and significantly increase the current density.

[0027] 2. A working electrode can be installed at the bottom of the electrolytic cell device of the present invention. The working electrode has an optical path, which is convenient for collecting infrared and realizing infrared testing of in-situ electrochemical reactions.

[0028] 3. The device of the present invention is simple and practical, and provides convenience for electrochemical infrared performance testing under a magnetic field. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a diagram of an electrolytic cell device for in-situ electrocatalysis under a magnetic field of the present invention;

[0030] Figure 2 It is a schematic diagram (section) of the working principle of the present invention, in which the base carrier plate and the base ring are omitted;

[0031] Figure 3 This is a diagram of the upper surface of the base carrier of the present invention;

[0032] Figure 4 This is a lower surface diagram of the base carrier plate of the present invention;

[0033] Figure 5 It is the upper surface diagram of the base ring of the present invention;

[0034] Figure 6 This is a lower surface diagram of the base ring of the present invention;

[0035] Figure 7 It is the outer surface diagram of the reaction tank of the present invention;

[0036] Figure 8 It is the lower surface diagram of the reaction tank of the present invention;

[0037] Fig. 9 This is a performance test diagram of the electrolytic cell for in-situ electrocatalysis under a magnetic field of the present invention.

[0038] Among them, (1) threaded hole; (2) working electrode hole; (3) buckle; (4) positioning hole; (5) working electrode support platform; (6) optical path channel; (7) working electrode hole; (8) base ring threaded wall; (9) threaded hole; (10) gasket hole; (11) reference electrode hole; (12) air inlet hole; (13) air outlet hole; (14) reaction cell groove; (15) counter electrode hole; (16) reaction cell threaded wall; (17) reaction cell outer wall; (18) electrolyte channel; (19) reaction cell groove wall; (20) base carrier plate; (21) base ring; (22) permanent magnet; (23) reaction cell; (24) outer frame bracket; (25) crossbeam; (26) working electrode, (27) electrolyte solution. DETAILED DESCRIPTION

[0039] The embodiments of the present invention will be described in detail below in conjunction with the embodiments of the present invention, but it should not be construed as limiting the present invention. Without departing from the essence of the present invention, modifications and substitutions made to the methods, steps or conditions of the present invention all belong to the scope of the present invention.

[0040] The in-situ electrocatalytic electrolysis cell device under magnetic field provided by the present invention prepares the surface of the reaction cell into a groove shape to facilitate the placement of a strong magnet. The strong magnetic field generated by the strong magnet can generate a Lorentz force on the charged ions and current in the electrolyte, thereby improving the mass transfer of the electrocatalytic process, improving the reaction efficiency, increasing the yield of the reactants, efficiently converting electrical energy into chemical energy, and reducing energy loss. Applying a magnetic field is very dependent on experimental equipment. Therefore, suitable equipment can greatly promote related research and improve the efficiency and performance of the reaction.

[0041] like Figure 1 As shown, the device is divided into a reaction pool 23, a base ring 21, a base carrier plate 20 and a permanent magnet 22. First, the working electrode 26 is installed on the base carrier plate 20, and installed through the working electrode support platform 5; the base carrier plate 20 and the base ring 21 are screwed and fixed through 8 nuts and threaded holes 1 to ensure that they fit tightly and are sealed without leaking; then the reaction pool 23 is gently screwed on the base ring 21 and tightened to ensure that it is sealed without leaking; then the electrolyte solution 27 is injected through the air outlet 13; the reference electrode 11, the counter electrode 15, the air inlet pipe 12, and the air outlet pipe 13 are placed respectively, and the nuts are tightened to ensure that the entire device is in a sealed and leak-proof state.

[0042] The surroundings of the reaction pool 23 are respectively the reference electrode hole 11, the air inlet hole 12, the air outlet hole 13, and the counter electrode hole 15. The glass pipes where the reference electrode hole 11, the air inlet hole 12, and the counter electrode hole 15 are located should have a certain inclination angle, which is 45-80 degrees with the horizontal plane, and the direction of the glass pipe where the air outlet hole 13 is located should be kept perpendicular to the horizontal plane.

[0043] The thickness of the base ring 21 used in this embodiment is 2 mm, which ensures a certain wall thickness and also ensures that the magnetic field can exert sufficient magnetic field strength on the catalyst on the electrode surface.

[0044] The groove wall 19 of the reaction tank used in this embodiment is 2 mm away from the upper surface of the base carrier plate, ensuring that the magnetic field can exert sufficient magnetic field strength on the catalyst on the electrode surface.

[0045] The wall thickness of the reaction pool groove wall 19 used in this embodiment is 3 mm to ensure that it can bear the weight of the permanent magnet. For heavier permanent magnets, the wall thickness of the reaction pool groove wall 19 used in the specification can be 3 mm. Figure 1 The outer frame support 24 and the crossbeam 25 are suspended to reduce the load-bearing of the reaction tank groove wall.

[0046] The diameter of the groove 14 of the reaction pool used in this embodiment is greater than 60 mm, and can accommodate a cylindrical strong magnet with a diameter of 60 mm.

[0047] The air inlet pipe in this embodiment enters the reaction pool 23 through the air inlet hole 12 . The diameter of the air inlet pipe is 2 mm, which facilitates the air inlet pipe to pass to the bottom of the reaction pool 23 to stir the electrolyte solution 27 .

[0048] When the device is used, first put the cylindrical working electrode into the working electrode hole 2 of the base carrier plate 20, and put a thin circular gasket on it; then put the base ring 21 on the base carrier plate 20, and ensure that the 8 threaded holes of the base carrier plate 20 and the base ring 21 correspond to each other, and then screw in 8 plastic nuts to fix the base carrier plate and the base ring. Screw the reaction cell into the base ring, tighten it, and add an appropriate amount of electrolyte solution from the air inlet. Insert the corresponding electrodes into the reference electrode and counter electrode holes and seal them; pass an air inlet duct into the air inlet hole 12 until it is below the electrolyte liquid level, and seal the air inlet glass tube mouth; connect an air outlet duct to the air outlet hole 13. The permanent magnet 22 is placed in the reaction cell groove 14. It can be suspended if necessary.

[0049] like Fig. 9 As shown in the figure, after applying a permanent magnet to the groove of the reaction cell, the current density increases significantly and the reaction kinetics accelerates. At the same time, the infrared input and output can be detected to achieve infrared testing of in-situ electrochemical reactions.

Claims

1. An electrolytic cell device for in-situ infrared testing of magnetic field, characterized in that: It includes a base carrier plate, a base ring, and a reaction pool; The base carrier plate is installed at the lower part of the base ring and is sealed; The upper part of the base ring is connected to the reaction tank and is sealed; The reaction pool is in the shape of a ring, the bottom of the ring faces the base ring, and there is a groove in the middle; a cylindrical permanent magnet is placed in the groove; the N pole of the cylindrical permanent magnet points to the cylindrical working electrode; The base carrier plate has a circular hole, a cylindrical working electrode is inserted into the circular hole and sealed, and the catalyst is loaded on the cylindrical working electrode; The working electrode can conduct infrared light, and has symmetrically arranged inclined surfaces on the outside as a light path channel, one side being the light path entrance, and the other side being the light path exit; The reaction pool has several pipes, which are the reference electrode hole, the air inlet hole, the air outlet hole, and the counter electrode hole. The glass pipes where the reference electrode hole, the air inlet hole, and the counter electrode hole are located should have a certain inclination angle, which is 45 to 80 degrees with the horizontal plane. At the same time, the direction of the glass pipe where the air outlet is located is kept perpendicular to the horizontal plane, and the reference electrode, the air inlet pipe, the air outlet pipe, and the counter electrode are connected respectively, and sealed; The electrolyte is in the area enclosed by the working electrode, the circular hole of the base carrier plate, the base ring and the reaction cell.

2. The electrolytic cell device for magnetic field in-situ infrared testing according to claim 1, characterized in that: The base carrier plate is made of glass or plastic.

3. The electrolytic cell device for magnetic field in-situ infrared testing according to claim 1, characterized in that: The base ring is made of glass or plastic.

4. The electrolytic cell device for magnetic field in-situ infrared testing according to claim 1, characterized in that: The threaded holes on the base carrier plate are consistent in position and size with the threaded holes on the base ring, and the two are tightly connected by screws, with a sealing gasket arranged therebetween.

5. The electrolytic cell device for magnetic field in-situ infrared testing according to claim 1, characterized in that: The upper part of the base ring is threaded, and the thread matches the thread at the lower part of the reaction tank. The two can be screwed together, and a sealing ring is arranged between the two.

6. The electrolytic cell device for magnetic field in-situ infrared testing according to claim 1, characterized in that: The reaction pool is made of quartz glass.

7. The electrolytic cell device for magnetic field in-situ infrared testing according to claim 1, characterized in that: The pipeline openings of the reaction pool are all threaded and equipped with corresponding threaded caps for fixing and sealing the reference electrode, the air inlet pipe, the air outlet pipe and the counter electrode.

8. The electrolytic cell device for magnetic field in-situ infrared testing according to claim 1, characterized in that: The permanent magnet is suspended on the crossbeam of the movable bracket through ropes to achieve positioning.

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