Micro hot stage for electrochemical in-situ raman spectroscopy

Abstract

The application discloses a microscopic hot stage for electrochemical in-situ Raman spectrum measurement and relates to the technical field of microscopic hot stages.The microscopic hot stage comprises a circular bottom plate, a heating structure detachably arranged on the top surface of the circular bottom plate, an outer ring sleeved with the heating structure on the circular bottom plate, a light guide structure penetrating through the middle part of the circular bottom plate, a heat conduction structure abutting against the heating structure, a light transmission sheet, a circular glass sheet abutting against the bottom surface of the light transmission sheet, a metal coating coated on the bottom surface of the circular glass sheet, a circular gap arranged on the middle part of the bottom surface of the circular glass sheet, a glass hemisphere fixedly connected to the inner part of the circular gap on the bottom surface of the circular glass sheet, heat conduction rods fixedly connected to the bottom surface of the circular glass sheet in a dot array, and the lower ends of the heat conduction rods abutting against the heating structure. The microscopic hot stage can facilitate rapid heating of a sample and in-situ Raman spectrum measurement of the sample in chemical reaction.

Description

Technical Field

[0001] This invention belongs to the field of micro-hot stage technology, and in particular relates to a micro-hot stage for electrochemical in-situ Raman spectroscopy measurement. Background Technology

[0002] Electrochemical in-situ Raman spectroscopy is an advanced experimental technique that combines the principles of electrochemistry and Raman spectroscopy to achieve real-time, in-situ measurements of substances on and near the electrode surface during electrochemical processes. This technique is of great significance for studying electrode reaction mechanisms, catalyst activity, and battery performance. Electrochemical in-situ Raman spectroscopy requires the installation of a microscopic hot stage on a microscope. A microscopic hot stage is a microscope accessory specifically designed for observing samples under controlled temperature conditions. It combines a microscope with a temperature control system, allowing researchers to observe the properties and behavior of samples at different temperatures. Currently available microscope heating stages are typically standalone heating devices. These stages are inconvenient to assemble with the microscope itself. To observe a sample, the microscope stage must be disassembled, and the heating stage used to position the sample below the objective lens. This makes it difficult for staff to adjust the sample's position, observe it through the microscope, or perform in-situ electrochemical Raman spectroscopy measurements. Furthermore, existing heating stages do not facilitate rapid heating and cooling of the sample, resulting in lengthy in-situ electrochemical Raman spectroscopy measurements.

[0003] Therefore, existing microscopic hot stages cannot meet the needs of practical use, so there is an urgent need for improved technologies to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a micro hot stage for in-situ electrochemical Raman spectroscopy to solve the problems mentioned above.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: The present invention is a micro hot stage for electrochemical in-situ Raman spectroscopy measurement, comprising a circular base plate and a heating structure detachable on the top surface of the circular base plate. An outer ring is sleeved on the circular base plate outside the heating structure. A light guide structure runs through the middle of the circular base plate. A heat-conducting structure abuts against the heating structure. The heat-conducting structure includes a light-transmitting sheet, the bottom surface of which abuts against a circular glass sheet. The bottom surface of the circular glass sheet is coated with a metal coating. A circular notch is provided in the middle of the bottom surface of the circular glass sheet. A glass hemisphere is fixedly connected to the bottom surface of the circular glass sheet inside the circular notch. A heat-conducting rod is fixedly connected to the bottom surface of the circular glass sheet in a dot matrix pattern. The lower end of the heat-conducting rod abuts against the heating structure.

[0006] Furthermore, the diameter of the light-transmitting sheet is larger than the diameter of the circular glass slide. The bottom surface of the light-transmitting sheet is located on the outer periphery of the circular glass slide and a heat-conducting ring is abutted against it. A fastening groove is provided between the heat-conducting ring and the circular glass slide, and a fastening ring is embedded in the fastening groove. The thickness of the heat-conducting ring and the circular glass slide are the same. A water-absorbing ring is sleeved on the outside of the heat-conducting ring. The thickness of the water-absorbing ring is the sum of the thicknesses of the heat-conducting ring and the light-transmitting sheet. The top surface of the water-absorbing ring is coplanar with the top surface of the outer ring.

[0007] Furthermore, an inner fixing ring is fixedly connected to the inner wall of the outer ring at the middle, the top surface of the inner fixing ring is fixedly connected to the bottom surface of the snap-fit ​​ring, and an embedding groove is provided between the snap-fit ​​ring and the outer ring, and the heat-conducting ring and the water-absorbing ring are embedded in the embedding groove.

[0008] Furthermore, the bottom surface of the inner fixing ring is fixedly connected with heat dissipation rods in a circumferential array centered on the glass hemisphere. The bottom surface of the inner fixing ring is located inside the heat dissipation rods and abuts against an annular tube. The lower part of the annular tube is fixedly connected to a circular base plate. The outer wall of the annular tube is provided with external exhaust holes at equal intervals, the inner wall of the annular tube is provided with internal exhaust holes at equal intervals, and the outer ring is provided with exhaust ports at equal intervals below the inner fixing ring.

[0009] Furthermore, a threaded hole is provided in the center of the circular base plate, and a heat dissipation hole is provided on the circular base plate around the threaded hole. A support column is fixedly connected to the bottom surface of the circular base plate around the heat dissipation hole, and a clamping lug is fixedly connected to the circular base plate.

[0010] Furthermore, the heating structure includes an electric heating coil fixedly connected to the top surface of a circular base plate. The electric heating coil is distributed inside the annular tube. A wire is fixedly connected to the power receiving end of the electric heating coil, and the wire passes through the annular tube. The output end of the electric heating coil is vortex-shaped and abuts against a heat-conducting rod. A temperature measuring ring is fixedly connected to the circular base plate around the threaded hole. The temperature measuring ring abuts against the output end of the electric heating coil. A temperature sensor is fixedly connected to the bottom surface of the circular base plate. The detection end of the temperature sensor passes through the circular base plate and abuts against the temperature measuring ring.

[0011] Furthermore, there are two clamping ear pieces, one of which has an air guide tube fixedly connected to a portion near the circular base plate. An air delivery channel is provided on the clamping ear piece and the circular base plate, and the inner cavity of the air guide tube is connected to the inner cavity of the annular tube through the air delivery channel.

[0012] Furthermore, the light guide structure includes a light guide tube, the outer wall of which is provided with external threads, the light guide tube is threaded to the inner wall of the threaded hole through the external threads, the inner wall of the light guide tube is provided with a reflective part, and the light guide tube passes through the circular base plate and is sleeved with the glass hemisphere.

[0013] Furthermore, the heat-conducting rod includes a protective tube, a heat-conducting column is fixedly connected inside the protective tube, a heat-conducting end is fixedly connected to the lower end of the heat-conducting column, a mounting block is fixedly connected to the upper end of the heat-conducting column, a mounting hole is opened on the metal coating, a mounting groove is opened on the bottom surface of the circular glass slide, the mounting block penetrates the metal coating through the mounting hole, and the mounting block is connected to the circular glass slide and located inside the mounting groove.

[0014] The present invention has the following beneficial effects: In practical use, this microscopic hot stage facilitates rapid heating of the sample and enables in-situ chemical Raman spectroscopy measurements.

[0015] 2. In actual use, this microscopic hot stage can facilitate rapid heat dissipation and make it easier for staff to maintain the microscopic hot stage.

[0016] 3. In actual use, this microscopic hot stage can transmit external light to the sample, thus facilitating in-situ chemical Raman spectroscopy measurements of the sample.

[0017] 4. In actual use, this micro hot stage can achieve uniform heating of the sample, which facilitates in-situ chemical Raman spectroscopy measurement of the sample. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 The split structure diagram; Figure 3 for Figure 1 Cross-sectional structural diagram; Figure 4 This is a diagram showing the connection structure between the heating coil and the circular base plate in this invention. Figure 5 This is a diagram showing the connection structure between the light guide tube and the circular base plate in this invention; Figure 6 This is a diagram showing the connection structure between the glass hemisphere and the circular glass slide in this invention; Figure 7 This is a diagram showing the connection structure between the absorbent ring and the outer ring in this invention; Figure 8 This is a diagram showing the connection structure between the inner fixing ring and the outer ring in this invention; Figure 9 This is a diagram showing the connection structure between the heat-conducting coil and the light-transmitting sheet in this invention; Figure 10 for Figure 3 Enlarged structural diagram of A in the middle; Figure 11 This is a structural diagram showing the separation of the mounting block and the circular glass slide in this invention.

[0020] The attached diagram lists the components represented by each number as follows: 1. Clamping ear; 2. Light-transmitting sheet; 3. Water-absorbing ring; 4. Outer ring; 5. Air guide tube; 6. Circular base plate; 7. Glass hemisphere; 8. Circular glass slide; 9. Heat-conducting rod; 10. Heat-conducting ring; 11. Embedded groove; 12. Annular tube; 13. Heating ring; 14. External thread; 15. Light guide tube; 16. Support column; 17. Heat dissipation hole; 18. Threaded hole; 19. Reflective part; 20. Air supply channel; 21. Metal coating; 22. Circular notch; 23. Inner fixing ring; 24. Fastening ring; 25. Heat dissipation rod; 26. Fastening groove; 27. Exhaust port; 28. Mounting groove; 29. ​​Mounting hole; 30. Mounting block; 31. Heat-conducting column; 32. Heat-conducting end; 33. Protective tube; 34. Temperature sensor; 35. External exhaust port; 36. Temperature measuring ring; 37. Internal exhaust port; 38. Wire. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0022] Please see Figure 1-11 As shown, the present invention is a micro hot stage for electrochemical in-situ Raman spectroscopy measurement, including a circular base plate 6 and a heating structure detachable on the top surface of the circular base plate 6. An outer ring 4 is sleeved on the circular base plate 6 outside the heating structure. A light guide structure runs through the middle of the circular base plate 6, and a heat-conducting structure abuts on the heating structure. When in use, the outer ring 4 can protect the heating structure, preventing damage to the heating structure and avoiding burns to staff.

[0023] The heat-conducting structure includes a light-transmitting sheet 2, a circular glass sheet 8 abutting against the bottom surface of the light-transmitting sheet 2, a metal coating 21 coated on the bottom surface of the circular glass sheet 8, a circular notch 22 located in the middle of the bottom surface of the circular glass sheet 8, a glass hemisphere 7 fixedly connected inside the circular notch 22 on the bottom surface of the circular glass sheet 8, and a heat-conducting rod 9 fixedly connected in a dot matrix pattern on the bottom surface of the circular glass sheet 8, with the lower end of the heat-conducting rod 9 abutting against the heating structure. Both the light-transmitting slide 2 and the circular glass slide 8 are made of glass. When the circular glass slide 8 is coated with a metal coating 21, the light inside the circular glass slide 8 can be reflected back to the light-transmitting slide 2, which makes it easier for the sample on the light-transmitting slide 2 to receive light. The circular notch 22 is the part of the circular glass slide 8 that is not coated with the metal coating 21. When external light passes through the glass hemisphere 7, the glass hemisphere 7 can refract the light back to the circular glass slide 8. When in use, the heat-conducting rod 9 can transfer the heat generated by the heating coil 13 to the circular glass slide 8. At the same time, the circular glass slide 8 is coated with a metal coating 21, which can enable the circular glass slide 8 to quickly collect the heat transferred by the heat-conducting rod 9. It should be noted that the material of the metal coating 21 can be an opaque metal powder.

[0024] The diameter of the light-transmitting sheet 2 is larger than the diameter of the circular glass sheet 8. The bottom surface of the light-transmitting sheet 2 is located on the outer periphery of the circular glass sheet 8 and abuts against the heat-conducting ring 10. A fastening groove 26 is provided between the heat-conducting ring 10 and the circular glass sheet 8. A fastening ring 24 is embedded in the fastening groove 26. The thickness of the heat-conducting ring 10 and the circular glass sheet 8 are the same. A water-absorbing ring 3 is sleeved on the outside of the heat-conducting ring 10. The thickness of the water-absorbing ring 3 is the sum of the thickness of the heat-conducting ring 10 and the thickness of the light-transmitting sheet 2. The top surface of the water-absorbing ring 3 is coplanar with the top surface of the outer ring 4. The absorbent ring 3 can be made of a material that is resistant to high temperature and has good water absorption in the prior art. In this literature, it plays the role of absorbing the liquid spilled from the test sample, which can prevent the liquid spilled from contaminating the microscope. When in use, the heat-conducting ring 10 can transfer the heat on the light-transmitting sheet 2 to the inner fixing ring 23, so that the staff can release the heat on the light-transmitting sheet 2 to the outside.

[0025] An inner fixing ring 23 is fixedly connected to the inner wall of the outer ring 4 in the middle. The top surface of the inner fixing ring 23 is fixedly connected to the bottom surface of the snap ring 24. An embedding groove 11 is provided between the snap ring 24 and the outer ring 4. The heat conducting ring 10 and the water absorption ring 3 are embedded in the embedding groove 11. The fastening ring 24 allows the heat-conducting ring 10 and the water-absorbing ring 3 to be securely connected to the outer ring 4, preventing the test sample on the light-transmitting sheet 2 from moving. It also allows the heat on the light-transmitting sheet 2 to be transferred to the inner fixing ring 23.

[0026] The bottom surface of the inner fixing ring 23 is fixedly connected to the heat dissipation rod 25 in a circular array with the glass hemisphere 7 as the center. The bottom surface of the inner fixing ring 23 is located inside the heat dissipation rod 25 and abuts against the annular tube 12. The lower part of the annular tube 12 is fixedly connected to the circular base plate 6. The outer wall of the annular tube 12 is provided with external exhaust holes 35 at equal intervals, and the inner wall of the annular tube 12 is provided with internal exhaust holes 37 at equal intervals. The outer ring 4 is provided with exhaust ports 27 at equal intervals below the inner fixing ring 23. When external air is supplied to the inside of the annular tube 12, the air inside the annular tube 12 can blow onto the heat dissipation rod 25 through the external exhaust port 35, and the air inside the annular tube 12 can blow onto the heat conduction rod 9 through the internal exhaust port 37, thereby realizing the heat on the light-transmitting sheet 2 and the circular glass sheet 8 to be discharged to the outside. The exhaust port 27 can realize the heat evaporating from the heat dissipation rod 25 to be discharged to the outside.

[0027] A threaded hole 18 is provided in the middle of the circular base plate 6. A heat dissipation hole 17 is provided on the circular base plate 6 around the threaded hole 18. A support column 16 is fixedly connected to the bottom surface of the circular base plate 6 around the heat dissipation hole 17. A clamping ear 1 is fixedly connected to the circular base plate 6. The support column 16 can prevent the heat dissipation hole 17 from being blocked. When the air inside the annular tube 12 can be blown onto the heat-conducting rod 9 through the internal exhaust hole 37, the heat dissipated by the heat-conducting rod 9 can be discharged to the outside through the heat dissipation hole 17.

[0028] The heating structure includes an electric heating coil 13 fixedly connected to the top surface of the circular base plate 6. The electric heating coil 13 is distributed inside the annular tube 12. The power receiving end of the electric heating coil 13 is fixedly connected to a wire 38, which passes through the annular tube 12. The output end of the electric heating coil 13 is vortex-shaped and abuts against the heat-conducting rod 9. A temperature measuring ring 36 is fixedly connected to the outer periphery of the threaded hole 18 on the circular base plate 6. The temperature measuring ring 36 abuts against the output end of the electric heating coil 13. A temperature sensor 34 is fixedly connected to the bottom surface of the circular base plate 6. The detection end of the temperature sensor 34 passes through the circular base plate 6 and abuts against the temperature measuring ring 36. When the wire 38 is connected to an external power source, the heating coil 13 will generate heat. The heat generated by the heating coil 13 can be transferred to the heat-conducting rod 9. At this time, the temperature of the circular glass slide 8 will rise. When the temperature sensor 34 is in use, it can detect the temperature around the heating coil 13 through the temperature measuring ring 36, and then infer the temperature transferred by the light-transmitting sheet 2 to the sample. The material of the temperature measuring ring 36 can be selected from materials with good thermal conductivity currently available on the market.

[0029] There are two clamping ear pieces 1. One of the clamping ear pieces 1 is fixedly connected to an air guide tube 5 near the circular base plate 6. An air delivery channel 20 is opened on the clamping ear piece 1 and the circular base plate 6. The inner cavity of the air guide tube 5 is connected to the inner cavity of the annular tube 12 through the air delivery channel 20. External air can be supplied to the inside of the annular tube 12 through the air duct 5, which facilitates the rapid evaporation of heat on the light-transmitting plate 2. The clamping ear plate 1 is a sheet-like structure. When the stage plate in the microscope presses against the clamping ear plate 1, the circular base plate 6 can be fixed on the microscope stage.

[0030] The light guide structure includes a light guide tube 15, the outer wall of which is provided with an external thread 14. The light guide tube 15 is threaded to the inner wall of the threaded hole 18 through the external thread 14. The inner wall of the light guide tube 15 is provided with a reflective part 19. The light guide tube 15 passes through the circular base plate 6 and is sleeved with the glass hemisphere 7. The light guide tube 15 is threaded to the inner wall of the threaded hole 18 via the external thread 14, which makes it easy for the staff to disassemble the light guide tube 15. The reflective part 19 is a reflective coating coated on the inner wall of the light guide tube 15. The material of the reflective coating is the same as that of the metal coating 21. The reflective coating can transmit the light collected by the light guide tube 15 to the glass hemisphere 7.

[0031] The heat-conducting rod 9 includes a protective tube 33, a heat-conducting column 31 is fixedly connected inside the protective tube 33, a heat-conducting end 32 is fixedly connected to the lower end of the heat-conducting column 31, and a mounting block 30 is fixedly connected to the upper end of the heat-conducting column 31. A mounting hole 29 is opened on the metal coating 21, and a mounting groove 28 is opened on the bottom surface of the circular glass slide 8. The mounting block 30 passes through the mounting hole 29 and penetrates the metal coating 21. The mounting block 30 is connected to the circular glass slide 8 and is located inside the mounting groove 28. When the heat-conducting end 32 abuts against the heating coil 13, the heat-conducting end 32 can transfer heat to the heat-conducting column 31. Then, the heat-conducting column 31 can transfer heat to the circular glass slide 8 and the metal coating 21 through the mounting block 30. The metal coating 21 enables the circular glass slide 8 to heat up quickly. The heat-conducting end 32, the heat-conducting column 31 and the mounting block 30 can be made of materials with good thermal conductivity available on the market. In actual use, the operator first presses the slide on the microscope stage against the clamping lug 1. Then, the wire 38 is connected to an external power supply, and the external controller is connected to the temperature sensor 34. The temperature sensor 34 can transmit information to the external controller in real time. At the same time, the temperature sensor 34 can control the operation of the heating coil 13. When the circular base plate 6 is installed on the microscope stage, it is necessary to ensure that external light can enter the interior of the light guide tube 15. Then, the operator places the sample to be tested on the light-transmitting plate 2. When the heating coil 13 is working, the heat-conducting end 32 can transfer heat to the heat-conducting column 31. Heat can be transferred between the circular glass slide 8 and the metal coating 21 via the mounting block 30. The metal coating 21 allows for rapid heating of the circular glass slide 8. During use, the temperature sensor 34 can detect the temperature around the heating coil 13 via the temperature sensing ring 36, thereby inferring the temperature transferred to the sample by the light-transmitting plate 2. Both the light-transmitting plate 2 and the circular glass slide 8 are made of glass. When the circular glass slide 8 is coated with the metal coating 21, it reflects the light inside the circular glass slide 8 back to the light-transmitting plate 2, facilitating light reception by the sample on the light-transmitting plate 2. The circular notch 22 is the part of the circular glass slide 8 without the metal coating 21. The light guide tube 15... The light guide tube 15 is threaded to the inner wall of the threaded hole 18 via the external thread 14, facilitating disassembly by operators. The reflective part 19 is a reflective coating applied to the inner wall of the light guide tube 15. The reflective coating is made of the same material as the metal coating 21. The reflective coating can transmit the light collected by the light guide tube 15 to the glass hemisphere 7. When external light passes through the glass hemisphere 7, the glass hemisphere 7 can refract the light onto the circular glass plate 8. During use, the heat-conducting rod 9 can transfer the heat generated by the heating coil 13 to the circular glass plate 8. At the same time, the circular glass plate 8 is coated with the metal coating 21, which allows the circular glass plate 8 to quickly collect the heat transferred by the heat-conducting rod 9. This facilitates in-situ chemical Raman spectroscopy measurements of samples. After the sample is detected, external air can be supplied to the inside of the annular tube 12 through the air guide tube 5. The air inside the annular tube 12 can be blown onto the heat dissipation rod 25 through the external exhaust port 35, and the air inside the annular tube 12 can be blown onto the heat conduction rod 9 through the internal exhaust port 37. This allows the heat on the light-transmitting plate 2 and the circular glass slide 8 to be discharged to the outside. The support column 16 prevents the heat dissipation hole 17 from being blocked. When the air inside the annular tube 12 blows onto the heat conduction rod 9 through the internal exhaust port 37, the heat dissipated by the heat conduction rod 9 can be discharged to the outside through the heat dissipation hole 17.

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

Claims

1. A microscopic hot stage for in-situ electrochemical Raman spectroscopy measurement, comprising a circular base plate (6) and a heating structure detachable from the top surface of the circular base plate (6), characterized in that: An outer ring (4) is sleeved on the outside of the heating structure on the circular base plate (6), a light guide structure runs through the middle of the circular base plate (6), and a heat conduction structure abuts on the heating structure. The heat-conducting structure includes a light-transmitting sheet (2), the bottom surface of which abuts against a circular glass sheet (8), the bottom surface of which is coated with a metal coating (21), a circular notch (22) is provided in the middle of the bottom surface of which the circular glass sheet (8), a glass hemisphere (7) is fixedly connected inside the circular notch (22) on the bottom surface of which the circular glass sheet (8) is located, and a heat-conducting rod (9) is fixedly connected in a dot matrix pattern on the bottom surface of which the lower end of the heat-conducting rod (9) abuts against the heating structure.

2. The micro-hot stage for electrochemical in-situ Raman spectroscopy measurement according to claim 1, characterized in that, The diameter of the light-transmitting sheet (2) is larger than the diameter of the circular glass sheet (8). The bottom surface of the light-transmitting sheet (2) is located on the periphery of the circular glass sheet (8) and a heat-conducting ring (10) is abutted against it. A fastening groove (26) is provided between the heat-conducting ring (10) and the circular glass sheet (8). A fastening ring (24) is embedded in the fastening groove (26). The thickness of the heat-conducting ring (10) and the circular glass sheet (8) is the same. A water-absorbing ring (3) is sleeved on the outside of the heat-conducting ring (10). The thickness of the water-absorbing ring (3) is the sum of the thickness of the heat-conducting ring (10) and the light-transmitting sheet (2). The top surface of the water-absorbing ring (3) is coplanar with the top surface of the outer ring (4).

3. The micro-hot stage for electrochemical in-situ Raman spectroscopy measurement according to claim 2, characterized in that, The inner wall of the outer ring (4) is fixedly connected to the inner fixing ring (23) in the middle. The top surface of the inner fixing ring (23) is fixedly connected to the bottom surface of the snap ring (24). An embedding groove (11) is provided between the snap ring (24) and the outer ring (4). The heat conducting ring (10) and the water absorption ring (3) are embedded in the embedding groove (11).

4. The micro-hot stage for electrochemical in-situ Raman spectroscopy measurement according to claim 3, characterized in that, The bottom surface of the inner fixing ring (23) is fixedly connected with heat dissipation rods (25) in a circular array with the glass hemisphere (7) as the center. The bottom surface of the inner fixing ring (23) is located inside the heat dissipation rods (25) and abuts against an annular tube (12). The lower part of the annular tube (12) is fixedly connected to a circular base plate (6). The outer wall of the annular tube (12) is provided with external exhaust holes (35) at equal intervals. The inner wall of the annular tube (12) is provided with internal exhaust holes (37) at equal intervals. The outer ring (4) is provided with exhaust ports (27) at equal intervals below the inner fixing ring (23).

5. A micro-thermal stage for electrochemical in-situ Raman spectroscopy measurement according to claim 1, characterized in that, The circular base plate (6) has a threaded hole (18) in the middle, and a heat dissipation hole (17) is provided on the circular base plate (6) around the threaded hole (18). A support column (16) is fixedly connected to the bottom surface of the circular base plate (6) around the heat dissipation hole (17). A clamping ear plate (1) is fixedly connected to the circular base plate (6).

6. A micro-thermal stage for electrochemical in-situ Raman spectroscopy measurement according to claim 1, characterized in that, The heating structure includes an electric heating coil (13) fixedly connected to the top surface of a circular base plate (6). The electric heating coil (13) is distributed inside the annular tube (12). The electric heating coil (13) is fixedly connected to a wire (38) at its power-connecting end. The wire (38) passes through the annular tube (12). The output end of the electric heating coil (13) is vortex-shaped. The output end of the electric heating coil (13) abuts against the heat-conducting rod (9). A temperature measuring ring (36) is fixedly connected to the outer periphery of the threaded hole (18) on the circular base plate (6). The temperature measuring ring (36) abuts against the output end of the electric heating coil (13). A temperature sensor (34) is fixedly connected to the bottom surface of the circular base plate (6). The detection end of the temperature sensor (34) passes through the circular base plate (6) and abuts against the temperature measuring ring (36).

7. A micro-thermal stage for electrochemical in-situ Raman spectroscopy measurement according to claim 5, characterized in that, There are two clamping ear pieces (1), and one of the clamping ear pieces (1) has a fixed air guide tube (5) connected to the part near the circular base plate (6). The clamping ear piece (1) and the circular base plate (6) are provided with an air supply channel (20). The inner cavity of the air guide tube (5) is connected to the inner cavity of the annular tube (12) through the air supply channel (20).

8. A micro hot stage for electrochemical in-situ Raman spectroscopy measurement according to claim 1, characterized in that, The light guide structure includes a light guide tube (15), the outer wall of which is provided with an external thread (14), the light guide tube (15) is threaded to the inner wall of the threaded hole (18) through the external thread (14), the inner wall of the light guide tube (15) is provided with a reflective part (19), and the light guide tube (15) passes through the circular base plate (6) and is sleeved with the glass hemisphere (7).

9. A micro hot stage for electrochemical in-situ Raman spectroscopy measurement according to claim 1, characterized in that, The heat-conducting rod (9) includes a protective tube (33), a heat-conducting column (31) is fixedly connected inside the protective tube (33), a heat-conducting end (32) is fixedly connected to the lower end of the heat-conducting column (31), and a mounting block (30) is fixedly connected to the upper end of the heat-conducting column (31). A mounting hole (29) is opened on the metal coating (21), and a mounting groove (28) is opened on the bottom surface of the circular glass slide (8). The mounting block (30) passes through the mounting hole (29) and the metal coating (21). The mounting block (30) is connected to the circular glass slide (8) and located inside the mounting groove (28).

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