In-situ electrochemical reaction tank for X-ray absorption spectrum test

Abstract

The invention discloses an in-situ electrochemical reaction tank for testing an X-ray absorption spectrum. The in-situ electrochemical reaction tank comprises an electrolytic tank main body formed by sequentially connecting an electrolytic tank upper part, an electrolytic tank middle part and an electrolytic tank lower part, a trapezoidal empty window serving as an X-ray transmission window, an insertion opening I of a working electrode and an insertion opening II of a reference electrode are formed in the upper part of the electrolytic tank; the middle part of the electrolytic tank is provided with a clamping groove for storing a working electrode, a straight notch which penetrates through the middle part of the electrolytic tank and is used as an X-ray penetration test area, and a jack hole channel which is communicated with the straight notch and is used for placing a reference electrode; an electrolyte flowing channel which is communicated with the straight notch is formed in the outer wall of the middle part of the electrolytic tank in a penetrating manner; a trapezoidal digging hole and a through hole for leading in an electrode power line are formed in the lower part of the electrolytic tank. The device solves the problem of poor signal quality caused by X-ray absorption of a water layer in the test process, and also optimizes the problem of unsmooth discharge of product bubbles in the electrolyzed water reaction process; the in-situ electrolytic tank is ultrathin, light and easy to disassemble, and the portability of the in-situ electrolytic tank is enhanced.

Description

Technical Field

[0001] The present invention relates to an in-situ electrochemical reaction cell for X-ray absorption spectroscopy testing, belonging to the technical field of X-ray spectroscopy. Background Art

[0002] With the continuous growth of global energy demand and increasing concern about environmental issues, renewable energy technologies represented by solar energy and wind energy have witnessed rapid development. In the development of new energy, electrolytic water hydrogen production, as a green energy storage method, is crucial for ensuring the continuous and stable supply of renewable energy. In the research and application of electrolytic water hydrogen production technology, developing an economical, stable and efficient catalyst is one of the key links. And deeply understanding the mechanism behavior of these catalysts in the catalytic reaction has inestimable value for guiding the design and optimization of catalysts.

[0003] X-ray absorption spectroscopy (XAS), as a cutting-edge characterization technology, has played an increasingly important role in the analysis of material structure and the study of physical and chemical properties. This technology excites the elements in the catalyst with X-rays of a specific wavelength, and after collecting the spectroscopic signals of these elements for analysis, rich physical and chemical information of the material can be obtained. By carefully analyzing these data, we can not only infer the chemical states of the elements in the catalyst, but also reveal its coordination environment.

[0004] However, due to the limitations of existing test conditions, most X-ray absorption spectroscopy experiments are carried out on catalysts under steady-state conditions. Although this method is convenient, it cannot truly reflect the reaction mechanism of the catalyst under actual working conditions. In order to understand the catalytic mechanism of the catalyst more deeply, we need to conduct X-ray absorption spectroscopy tests on the catalyst under its actual working state to obtain more accurate and reliable data. This not only helps to reveal the true reaction path of the catalyst, but also provides more valuable guidance for the design of the catalyst.

[0005] Conducting X-ray absorption spectroscopy tests on the catalyst under its working state means that the X-rays must penetrate the reaction solution (an aqueous solution containing various ions). However, the thickness of the solution will cause serious absorption of the X-rays, thereby reducing the quality of the collected signal and increasing the measurement noise. To reduce this influence, we need to minimize the thickness of the water layer as much as possible in the propagation path of the X-rays, and at the same time, it is necessary to ensure that the catalyst can stably carry out catalytic work in this thin water layer environment. In addition, the designed electrolytic cell window should be much larger than the working area of the X-ray irradiation on the sample surface to maximize the contact of the sample with the X-ray beam.

[0006] Therefore, based on the above discussion, designing an in-situ electrochemical reaction cell applicable to X-ray absorption spectroscopy testing is the key to promoting catalyst research and application. By innovatively designing an electrochemical reaction cell that meets the requirements, we can more comprehensively understand the performance of the catalyst under actual working conditions, providing a solid foundation for the further optimization and application of the catalyst. Summary of the Invention

[0007] The purpose of the present invention is to provide an in-situ electrochemical reaction cell for X-ray absorption spectroscopy testing, aiming to obtain X-ray absorption spectroscopy data of the catalyst in the working state of water electrolysis. It mainly solves the problem of poor signal quality caused by the absorption of X-rays by the water layer during the testing process, and also optimizes the problem of unsmooth discharge of product bubbles during the water electrolysis reaction process. To meet various testing requirements, this device can be used not only for testing X-ray absorption spectroscopy data in transmission mode through reasonable design, but also for testing X-ray absorption spectroscopy data in fluorescence mode. In addition, the reaction device also has the characteristics of being ultra-thin, lightweight, and easy to disassemble, enhancing the portability of the in-situ electrolytic cell.

[0008] To achieve the above technical purposes and reach the above technical effects, the present invention is realized through the following technical solutions:

[0009] An in-situ electrochemical reaction cell for X-ray absorption spectroscopy testing, including an electrolytic cell body, the electrolytic cell body having an electrolytic cell upper part, an electrolytic cell middle part, and an electrolytic cell lower part connected in sequence; a trapezoidal empty window is opened at the central position of the electrolytic cell upper part as an X-ray transmission window, and an insertion port one for the working electrode and an insertion port two for the reference electrode are respectively provided on both sides of the trapezoidal empty window in the electrolytic cell upper part; a card slot for storing the working electrode is provided at the central position of the side of the electrolytic cell middle part facing the electrolytic cell upper part, a straight slot is penetrated through the central position of the electrolytic cell middle part as a test area for X-ray penetration, a jack hole channel communicating with the straight slot is also provided on the side of the electrolytic cell middle part facing the electrolytic cell upper part to place the reference electrode, and an electrolyte flow channel communicating with the straight slot is penetrated through the outer wall of the electrolytic cell middle part; a trapezoidal digging hole is opened at the central position of the electrolytic cell lower part, and a through hole for introducing the electrode power line is penetrated through on one side of the trapezoidal digging hole in the electrolytic cell lower part; both the trapezoidal empty window and the trapezoidal digging hole are isolated from the straight slot by a light-transmitting diaphragm; annular sealing rings are clamped between the electrolytic cell middle part and the electrolytic cell upper part and the electrolytic cell lower part respectively.

[0010] Preferably, both the trapezoidal empty window and the trapezoidal digging hole are trapezoidal holes with a waist-shaped hole cross-section, and the side of the trapezoidal empty window and the trapezoidal digging hole facing away from each other is the side with the largest opening area.

[0011] Preferably, a protruding platform is provided on one side of the lower portion of the electrolytic cell toward the middle portion of the electrolytic cell, the trapezoidal hole penetrates the protruding platform, and a connecting groove for plugging into the protruding platform is provided on the middle portion of the electrolytic cell.

[0012] Furthermore, the light-transmitting diaphragm is a polyimide film, and is arranged on the upper side wall of the electrolytic cell where the trapezoidal empty window and the straight slot meet and on the side wall where the protruding platform extends into the clamping slot.

[0013] Preferably, a through hole for electrode leads is provided on the lower portion of the electrolytic cell toward the middle portion of the electrolytic cell.

[0014] Preferably, water pipe connectors communicating with the electrolyte flow channel are detachably provided on the inner walls of the central portion of the electrolytic cell at both ends of the electrolyte flow channel.

[0015] Preferably, the first insertion port is detachably connected to a fine-hole hollow screw, and the second insertion port is detachably connected to a coarse-hole hollow screw.

[0016] Preferably, a plurality of screw holes 1 are provided through the upper part of the electrolytic cell, a plurality of fixing holes corresponding to and connected with the screw holes 1 are provided through the middle part of the electrolytic cell, and a plurality of screw holes 2 corresponding to and connected with the screw holes 1 are provided through the lower part of the electrolytic cell. The upper part, the middle part and the lower part of the electrolytic cell are connected and fixed by screws passing through the screw holes 1, the fixing holes and the screw holes 2.

[0017] Preferably, a plurality of hanging holes are correspondingly provided through the upper portion of the electrolytic cell, the middle portion of the electrolytic cell and the lower portion of the electrolytic cell.

[0018] Preferably, the upper part of the electrolytic cell, the middle part of the electrolytic cell and the lower part of the electrolytic cell are disc-shaped cell bodies that are coaxially arranged and of equal size.

[0019] The in-situ electrochemical reaction cell for X-ray absorption spectroscopy testing provided by the present invention has the following advantages:

[0020] 1. The in-situ electrochemical reaction cell for X-ray absorption spectroscopy testing of the present invention has a detection window designed as a trapezoidal hole structure. This design enables it to adapt to X-ray absorption spectroscopy testing in transmission mode and is also suitable for fluorescence X-ray absorption spectroscopy testing in reflection mode.

[0021] 2. The in-situ electrochemical reaction cell for X-ray absorption spectroscopy testing of this invention features a protruding platform structure at the bottom of the electrolytic cell, significantly reducing the thickness of the water layer. Precise calculations show that the thinnest part of the electrolytic cell at the X-ray window is only 0.8 mm, significantly reducing the impact of the water layer on the quality of the hard X-ray signal.

[0022] 3. The in-situ electrochemical reaction cell for X-ray absorption spectroscopy testing according to the present invention, through the setting of perforating the electrode leads, the counter electrode can be a platinum wire or a carbon film supported on a polyimide film. Therefore, there are various forms for the selection of the counter electrode. If the counter electrode uses a platinum wire, the design has the function of expanding the distribution area of the platinum wire, and constructs the counter electrode plane around the protruding platform at the lower part of the electrolytic cell to increase the overlapping area between the counter electrode and the working electrode. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 FIG. is an exploded structural schematic diagram of an in-situ electrochemical reaction cell for X-ray absorption spectroscopy testing provided by an embodiment of the present invention;

[0024] Figure 2 FIG. is a side view of the upper part of the electrolytic cell provided by an embodiment of the present invention;

[0025] Figure 3 FIG. is a front view of the upper part of the electrolytic cell provided by an embodiment of the present invention;

[0026] Figure 4 FIG. is a structural schematic diagram of the fine-hole hollow screw provided by an embodiment of the present invention;

[0027] Figure 5 FIG. is a structural schematic diagram of the thick-hole hollow screw provided by an embodiment of the present invention;

[0028] Figure 6 FIG. is a side view of the middle part of the electrolytic cell provided by an embodiment of the present invention;

[0029] Figure 7 FIG. is a front view of the middle part of the electrolytic cell provided by an embodiment of the present invention;

[0030] Figure 8 FIG. is a side view of the lower part of the electrolytic cell provided by an embodiment of the present invention;

[0031] Figure 9 FIG. is a front view of the lower part of the electrolytic cell provided by an embodiment of the present invention;

[0032] Figure 10 FIG. is a working assembly schematic diagram of an in-situ electrochemical reaction cell for X-ray absorption spectroscopy testing provided by an embodiment of the present invention during in-situ X-ray testing;

[0033] Figure 11 Absorption spectrum diagram of the K edge of nickel element measured by the in-situ electrochemical reaction cell for X-ray absorption spectroscopy testing provided by an embodiment of the present invention.

[0034] In the figure:

[0035] 1 - Upper part of the electrolytic cell; 11 - Trapezoidal empty window; 12 - Insertion port one; 13 - Insertion port two; 14 - Screw hole one; 2 - Middle part of the electrolytic cell; 21 - Card slot; 22 - Straight slot opening; 23 - Jack hole channel; 24 - Electrolyte flow channel; 25 - Clamping groove; 26 - Fixing hole; 3 - Lower part of the electrolytic cell; 31 - Trapezoidal dug hole; 32 - Through hole; 33 - Protruding platform; 34 - Counter electrode lead perforation; 35 - Screw hole two; 4 - Fine hole hollow screw; 5 - Coarse hole hollow screw; 6 - Transparent diaphragm; 7 - Annular sealing ring; 8 - Annular groove; 9 - Hanging hole; 10 - Water pipe connector. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0037] Refer to Figures 1-9 , an in-situ electrochemical reaction cell for X-ray absorption spectroscopy testing, including an electrolytic cell body. The electrolytic cell body has an upper part 1 of the electrolytic cell, a middle part 2 of the electrolytic cell, and a lower part 3 of the electrolytic cell that are connected in sequence. In a feasible embodiment, the upper part 1 of the electrolytic cell, the middle part 2 of the electrolytic cell, and the lower part 3 of the electrolytic cell can be any shape of the main structure. In this embodiment, the upper part 1 of the electrolytic cell, the middle part 2 of the electrolytic cell, and the lower part 3 of the electrolytic cell are preferably coaxial and equal-sized disc-shaped cell bodies. At the same time, all parts of the entire electrolytic cell body in contact with the electrolyte can adopt non-metallic parts, such as PEEK, effectively avoiding the problems of electrolytic cell damage caused by metal part corrosion and environmental pollution of chemical reactions.

[0038] Refer to Figures 1-5 , a trapezoidal empty window 11 is opened at the center position of the upper part 1 of the electrolytic cell as an X-ray transmission window. A transparent diaphragm 6 is adhesively fixed on the side wall of the trapezoidal empty window 11 on the side of the upper part 1 of the electrolytic cell facing the middle part 2 of the electrolytic cell. The transparent diaphragm 6 is preferably a polyimide film to achieve X-ray transmission and prevent the leakage of the reaction solution; on both sides of the trapezoidal empty window 11 in the upper part 1 of the electrolytic cell, there are respectively an insertion port one 12 for the working electrode and an insertion port two 13 for the reference electrode. Both the insertion port one 12 and the insertion port two 13 are threaded holes. A fine hole hollow screw 4 is screwed and fixed in the insertion port one 12 for the insertion of the working electrode, and a coarse hole hollow screw 5 is screwed and fixed in the insertion port two 13 for the insertion of the reference electrode.

[0039] Refer to Figure 1 , Figure 6 and Figure 7, at the central position on the side of the middle part 2 of the electrolytic cell facing the upper part 1 of the electrolytic cell, there is a card slot 21 for storing the working electrode loaded with the catalyst. A straight slot 22 is penetrated through the central position of the middle part 2 of the electrolytic cell as the test area for X-ray penetration. On the side of the middle part 2 of the electrolytic cell facing the upper part 1 of the electrolytic cell, there is also a jack hole channel 23 communicated with the straight slot 22 for placing the reference electrode inserted from the thick-hole hollow screw 5. An electrolyte flow channel 24 communicated with the straight slot 22 is penetrated through the outer wall of the middle part 2 of the electrolytic cell for the inflow and outflow of the electrolyte. At both ends of the electrolyte flow channel 24 on the inner wall of the middle part 2 of the electrolytic cell, there are water pipe connectors 10 connected in a transition fit or interference fit and communicated with the electrolyte flow channel 24. The water pipe connectors 10 are used to connect the external fixed water pipes to realize the circulation of the electrolyte.

[0040] Further, one end of the electrolyte flow channel 24 is used as the water inlet, and the other end is used as the water outlet. For the problem of gas discharge during the catalytic process, both the water inlet and the water outlet adopt an arc-shaped design, which helps to gather bubbles and thus discharge the bubbles smoothly.

[0041] Refer to Figure 1 、 Figure 8 and Figure 9 , at the central position of the lower part 3 of the electrolytic cell, there is a trapezoidal dug hole 31. A through hole 32 for introducing the electrode power line is penetrated through the lower part 3 of the electrolytic cell on one side of the trapezoidal dug hole 31; both the trapezoidal empty window 11 and the trapezoidal dug hole 31 are isolated from the straight slot 22 by a light-transmitting diaphragm 6; on the side of the lower part 3 of the electrolytic cell facing the middle part 2 of the electrolytic cell, there is an integrally formed protruding platform 33. The trapezoidal dug hole 31 penetrates through the protruding platform 33. A clamping groove 25 for inserting the protruding platform 33 is provided on the middle part 2 of the electrolytic cell. The light-transmitting diaphragm 6 is adhered to the side wall of the protruding platform 33 extending into the clamping groove 25 and also uses a polyimide film to prevent the leakage of the reaction solution.

[0042] Further, both the trapezoidal empty window 11 and the trapezoidal dug hole 31 are trapezoidal holes with a waist-shaped hole cross-section, and the sides of the trapezoidal empty window 11 and the trapezoidal dug hole 31 facing away from each other are the sides with the largest opening area, which can adapt to the X-ray absorption spectrum test in the transmission mode and is also suitable for the fluorescence X-ray absorption spectrum test in the reflection mode.

[0043] Further, a counter electrode lead perforation 34 is penetrated through the lower part 3 of the electrolytic cell in the direction facing the middle part 2 of the electrolytic cell. Through the counter electrode lead perforation 34, it is possible to thread a platinum wire to form a platinum mesh as the counter electrode, or to deposit conductive carbon on the light-transmitting diaphragm 6 and realize the counter electrode function by pulling out the platinum wire as a wire.

[0044] Refer to Figure 1, in a further embodiment, annular sealing rings 7 are clamped between the middle part 2 of the electrolytic cell and the upper part 1 and the lower part 3 of the electrolytic cell. Annular grooves 8 for embedding the annular sealing rings 7 are formed on the upper part 1, the middle part 2 and the lower part 3 of the electrolytic cell to ensure the tightness of the device.

[0045] Referring to Figures 1-9 , a plurality of first screw holes 14 are formed through the upper part 1 of the electrolytic cell, a plurality of fixing holes 26 corresponding to and communicating with the first screw holes 14 are formed through the middle part 2 of the electrolytic cell, and a plurality of second screw holes 35 corresponding to and communicating with the first screw holes 14 are formed through the lower part 3 of the electrolytic cell. The upper part 1, the middle part 2 and the lower part 3 of the electrolytic cell are fixedly connected by screws passing through the first screw holes 14, the fixing holes 26 and the second screw holes 35, which plays a role in sealing and fixing the main body of the electrolytic cell. In this embodiment, preferably four first screw holes 14, fixing holes 26 and second screw holes 35 are correspondingly formed.

[0046] Furthermore, a plurality of suspension holes 9 are correspondingly formed through the upper part 1, the middle part 2 and the lower part 3 of the electrolytic cell. The main body of the electrolytic cell can be slid in front of the X-ray source through the suspension holes 9 to facilitate the test of X-ray absorption spectrum.

[0047] The test steps of an in-situ electrochemical reaction cell for X-ray absorption spectrum test according to the present invention are as follows:

[0048] 1. Connect the two water pipe connectors 10 on the middle part 2 of the electrolytic cell to the water pipes respectively to form an outlet and an inlet channel in the middle part 2 of the electrolytic cell;

[0049] 2. Paste light-transmitting diaphragms 6 with appropriate sizes on the upper part 1 and the lower part 3 of the electrolytic cell. It should be noted here that the incorporation of glue should be avoided as much as possible near the X-ray window because the glue also has strong absorption of X-rays;

[0050] 3. Place an annular sealing ring 7 with an appropriate size at the annular groove 8 of the middle part 2 of the electrolytic cell;

[0051] 4. Place the reference electrode, the counter electrode and the working electrode into the jack hole channel 23, the electrolyte flow channel 24 and the card slot 21 respectively;

[0052] 5. Connect the counter electrode and the reference electrode to the platinum wire, then pull out the platinum wire from the second insertion port 13 and the counter electrode lead perforation 34, and perform sealing treatment through a suitable thin-hole hollow screw 4;

[0053] 6. After the three-electrode treatment, buckle the upper part 1, the middle part 2 and the lower part 3 of the electrolytic cell together, and finally connect them tightly together by four screws to form a sealed in-situ electrolytic cell;

[0054] 7. Under working conditions, the solution in the water pipe first flows in from below the electrolytic cell shown in Figure 1 . It passes through the electrolyte flow channel 24 in the middle 2 of the electrolytic cell and runs through the entire electrolytic cell. The bubbles generated during the working process will rise upward with the water flow to the upper part of the electrolytic cell, and finally the bubbles are carried out of the electrolytic cell.

[0055] Referring to Figure 10 , the figure shows the assembly environment of the electrolyte when testing the in-situ X-ray absorption spectrum. It can be seen that the in-situ electrolytic cell is fixed in front of the X-ray source through screws and the suspension holes 9. The electrolyte flows in from below and out from above to ensure that the generated gas can be completely carried away. In addition, the connection lines of the reference electrode, working electrode and counter electrode are also shown in the figure.

[0056] Referring to Figure 11 , the figure shows the signals of the X-ray absorption spectrum obtained by testing based on the installation method of Figure 6 . The red line represents the spectrum obtained without the electrolytic cell, and the blue line represents the X-ray spectrum data obtained when the electrolytic cell is in the working state. There is no obvious difference near 8333 eV, which verifies that the electrolytic cell designed based on this set of research can accurately perform in-situ X-ray absorption spectrum testing.

[0057] As mentioned above, it is only a preferred embodiment of the present invention, and there is no limitation in any form and essence to the present invention. It should be pointed out that for those of ordinary skill in the art of this technology, without departing from the premise of the present invention, several improvements and supplements can still be made, and these improvements and supplements should also be regarded as the protection scope of the present invention. Those who are familiar with the technology in this field, without departing from the spirit and scope of the present invention, when making some equivalent changes such as slight modifications, decorations and evolutions using the technical content disclosed above, are all equivalent embodiments of the present invention; at the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the substantial technology of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An in-situ electrochemical reaction cell for X-ray absorption spectroscopy testing, comprising an electrolytic cell body, characterized in that, The electrolytic cell body has an upper part (1), a middle part (2), and a lower part (3) of the electrolytic cell connected in sequence; At the central position of the upper part (1) of the electrolytic cell, a trapezoidal empty window (11) is provided as an X-ray transmission window. On both sides of the trapezoidal empty window (11) in the upper part (1) of the electrolytic cell, there are respectively an insertion opening one (12) for the working electrode and an insertion opening two (13) for the reference electrode; on the central position of the side of the middle part (2) of the electrolytic cell facing the upper part (1) of the electrolytic cell, there is a card slot (21) for storing the working electrode. A straight slot (22) is penetrated through the central position of the middle part (2) of the electrolytic cell as a test area for X-ray penetration. On the side of the middle part (2) of the electrolytic cell facing the upper part (1) of the electrolytic cell, there is also a jack hole channel (23) communicated with the straight slot (22) to place the reference electrode. An electrolyte flow channel (24) communicated with the straight slot (22) is penetrated through the outer wall of the middle part (2) of the electrolytic cell; at the central position of the lower part (3) of the electrolytic cell, a trapezoidal dug hole (31) is provided. On one side of the trapezoidal dug hole (31) in the lower part (3) of the electrolytic cell, a through hole (32) for introducing the electrode power line is penetrated; both the trapezoidal empty window (11) and the trapezoidal dug hole (31) are isolated from the straight slot (22) by a light-transmitting diaphragm (6); An annular sealing ring (7) is clamped between the middle part (2) of the electrolytic cell and the upper part (1) and the lower part (3) of the electrolytic cell.

2. The in-situ electrochemical reaction cell for X-ray absorption spectroscopy test according to claim 1, characterized in that, Both the trapezoidal empty window (11) and the trapezoidal dug hole (31) are trapezoidal holes with a waist-shaped hole cross-section, and the sides of the trapezoidal empty window (11) and the trapezoidal dug hole (31) facing away from each other are the sides with the largest opening area.

3. The in-situ electrochemical reaction cell for X-ray absorption spectroscopy measurement according to claim 1, characterized in that, On the side of the lower part (3) of the electrolytic cell facing the middle part (2) of the electrolytic cell, a protruding platform (33) is provided. The trapezoidal dug hole (31) penetrates through the protruding platform (33), and a clamping groove (25) for inserting the protruding platform (33) is provided on the middle part (2) of the electrolytic cell.

4. The in-situ electrochemistry reaction cell for X-ray absorption spectroscopy measurement according to claim 3, characterized in that, The light-transmitting diaphragm (6) is a polyimide film, and the light-transmitting diaphragm (6) is arranged on the side wall of the upper part (1) of the electrolytic cell at the connection of the trapezoidal empty window (11) and the straight slot (22) and on the side wall of the protruding platform (33) extending into the clamping groove (25).

5. The in-situ electrochemical reaction cell for X-ray absorption spectroscopy test according to claim 1, characterized in that, On the lower part (3) of the electrolytic cell, a counter electrode lead perforation (34) is penetrated in the direction towards the middle part (2) of the electrolytic cell.

6. The in-situ electrochemical reaction cell for X-ray absorption spectroscopy test according to claim 1, characterized in that, On the inner walls at both ends of the electrolyte flow channel (24) in the middle part (2) of the electrolytic cell, water pipe connectors (10) communicated with the electrolyte flow channel (24) are detachably arranged.

7. The in-situ electrochemical reaction cell for X-ray absorption spectroscopy test according to claim 1, characterized in that, The insertion opening one (12) is detachably connected with a fine-hole hollow screw (4), and the insertion opening two (13) is detachably connected with a thick-hole hollow screw (5).

8. The in-situ electrochemical reaction cell for X-ray absorption spectroscopy test according to claim 1, wherein, A plurality of first screw holes (14) are penetrated and formed in the upper part (1) of the electrolytic cell, a plurality of fixing holes (26) corresponding to and communicating with the first screw holes (14) are penetrated and formed in the middle part (2) of the electrolytic cell, and a plurality of second screw holes (35) corresponding to and communicating with the first screw holes (14) are penetrated and formed in the lower part (3) of the electrolytic cell. The upper part (1), the middle part (2) and the lower part (3) of the electrolytic cell are fixedly connected by screws passing through the first screw holes (14), the fixing holes (26) and the second screw holes (35).

9. The in-situ electrochemical reaction cell for X-ray absorption spectroscopy test according to claim 1, characterized in that, A plurality of suspension holes (9) are correspondingly penetrated and formed in the upper part (1), the middle part (2) and the lower part (3) of the electrolytic cell.

10. The in-situ electrochemical reaction cell for X-ray absorption spectroscopy test according to claim 1, characterized in that, The upper part (1), the middle part (2) and the lower part (3) of the electrolytic cell are coaxial and equal-sized disc-shaped cell bodies.

Images