Raman and mass spectrum combined electrochemical reaction tank

Abstract

The invention discloses a Raman and mass spectrometry combined electrochemical reaction tank, and relates to the technical field of electrochemical reaction tanks, the Raman and mass spectrometry combined electrochemical reaction tank comprises a cathode module, the cathode module comprises a cathode bin, a Raman observation window is embedded in the top surface of the cathode bin, and the top of the Raman observation window is covered with a window sealing cover; a first liquid guide opening is formed in the bottom of the cathode bin; the anode module is in sealed butt joint with the side part of the cathode bin, and a proton interaction membrane is arranged in the anode module; the exhaust module comprises a gas leading-out block, and the gas leading-out block is in butt joint with the bottom face of the cathode bin in a sealed mode; a sample sealing unit is embedded into the accommodating groove and is used for enabling the electrolyte to be in contact with a sample and leading out reaction gas; the sample sealing unit comprises a hydrophobic membrane; an overturning unit; according to the invention, synchronous in-situ analysis and detection of Raman and mass spectrometry can be realized, and the research efficiency of a sample reaction mechanism is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electrochemical reaction cells, and specifically, to an electrochemical reaction cell for the combined use of Raman and mass spectrometry. Background Art

[0002] In the field of electrochemical mechanism research, real-time monitoring of the changes of substances on the electrode surface and the collaborative analysis of gas products are key technical means for revealing reaction paths. In the prior art, in-situ Raman spectroscopy technology is usually used to characterize the molecular structure of adsorbed intermediates on the electrode surface, and at the same time, a mass spectrometer is combined to qualitatively and quantitatively analyze the gas products generated during the reaction process. However, the traditional electrochemical reaction cell has the following technical problems when realizing the above multi-modal combined detection: Most of the existing devices are designed with a single detection mode. Most of the electrolytic cells dedicated to Raman detection only have optical observation windows and cannot be synchronously connected to the mass spectrometry analysis system. If gas analysis is required, a separate mass spectrometry analysis experiment needs to be carried out. This discrete design prevents researchers from obtaining the dynamic correlation data of surface reaction information and gas-phase products in the same reaction process, restricting the integrity of the mechanism research on complex electrochemical systems. Summary of the Invention

[0003] The purpose of the present invention is to provide an electrochemical reaction cell for the combined use of Raman and mass spectrometry to solve the problems raised in the prior art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: An electrochemical reaction cell for the combined use of Raman and mass spectrometry, comprising: a cathode module, which includes a cathode chamber, a Raman observation window is embedded in the top surface of the cathode chamber, and a window sealing cover is covered on the top of the Raman observation window; a first liquid outlet is opened at the bottom of the cathode chamber; An anode module, which is hermetically docked on the side of the cathode chamber, and a proton exchange membrane is built in the anode module; An exhaust module, which includes a gas export block, the gas export block is hermetically docked on the bottom surface of the cathode chamber, a receiving groove is opened in the middle of the gas export block, the receiving groove is relatively placed directly below the first liquid outlet, a negative pressure exhaust joint is provided on the side wall of the gas export block, and the inner wall of the receiving groove is communicated with the negative pressure exhaust joint through a horizontal hole; a sample sealing unit is embedded in the receiving groove, and the sample sealing unit is used to make the electrolyte contact with the sample and export the reaction gas; the sample sealing unit includes a hydrophobic membrane; A flipping unit, which is detachably connected to the exhaust module and is used to drive the exhaust module to flip so that the exhaust module or the anode module is alternately vertical; A consumable manufacturing unit, whose driving end is connected to the flipping unit and is used to manufacture the required proton exchange membrane or hydrophobic membrane during the flipping process.

[0005] Further, first liquid inlet joints, first liquid discharge joints, reference electrodes, and second liquid guide ports are respectively arranged on four sides of the cathode chamber.

[0006] Further, the anode module includes an anode chamber. A counter electrode is installed at one end of the anode chamber, and a second liquid inlet joint is installed at the other end. A second liquid discharge joint is installed on the top surface of the anode chamber. A third liquid guide port is formed in the inner wall of the anode chamber. A first gasket, a proton exchange membrane, and a second gasket are arranged between the anode chamber and the cathode chamber. The first gasket and the second gasket have the same structure. A fourth liquid guide port is formed in the middle of the first gasket. The proton exchange membrane is placed in the middle between the first gasket and the second gasket. The proton exchange membrane is used to enable protons in the liquid to flow between the cathode chamber and the anode chamber.

[0007] Further, first through holes are formed at four corners of the anode chamber. A set of first guide rods penetrate through each set of first through holes. Second through holes are formed at four corners of the first gasket. The first gasket and the second gasket are both sleeved on the first guide rods. Inner ends of the four groups of first guide rods are vertically fixed on the side wall of the cathode chamber. Outer ends of the four groups of first guide rods are fixedly connected to a baffle. The outwardly moved anode chamber is stopped at the inner side of the baffle. A contact screw is rotatably installed at the center of the baffle.

[0008] Further, third through holes are formed at four corners of the gas outlet block. A set of second guide rods penetrate through each set of third through holes. Tops of the four groups of second guide rods are vertically fixedly connected to the cathode chamber, and bottoms are vertically fixedly connected to the base. Springs are sleeved on the outer parts of the second guide rods. The springs are placed at the bottom of the gas outlet block. First and second pressure wheel frames are symmetrically and rotatably installed on two sides of the gas outlet block; a base is provided on the bottom surface of the base. Slots are symmetrically arranged inside the base. Inverting units are inserted into the sides of the slots. When the reaction cell is assembled, the gas outlet block fits on the bottom surface of the cathode chamber, the anode chamber fits on the side surface of the cathode chamber, the first pressure wheel frame is buckled on the side of the top surface of the cathode chamber away from the anode chamber, the second pressure wheel frame is buckled on the outer side surface of the anode chamber, and the spring is stretched to quickly complete the positioning of the gas outlet block and the anode chamber.

[0009] Further, the sample sealing unit includes a third gasket, a fourth gasket, a hydrophobic membrane, and a porous ceramic plate arranged in sequence from top to bottom. The third gasket and the fourth gasket have the same structure. The sample is placed between the third gasket and the fourth gasket; a fifth liquid guide port is formed inside the third gasket.

[0010] Furthermore, the flipping unit includes a pallet. Two groups of first side plates are vertically arranged on the surface of the pallet. An active roller is arranged at the top between the two groups of first side plates. Assembly frames are symmetrically fixed on the outer wall of the active roller. Each assembly frame includes an inclined rod and a plug rod. One end of the inclined rod is fixedly connected to the active roller, the other end of the inclined rod is connected to a restraint plate, the side wall of the restraint plate is connected to the plug rod, and the plug rod is horizontally inserted into the slot and its end is positioned by a nut. The active roller drives the assembly frame to rotate so that the gas outlet block or the anode chamber is vertical. Two groups of second side plates are vertically arranged on the surface of the pallet. The second side plates are located outside the first side plates, and a storage plate is arranged at the top ends of the two groups of second side plates.

[0011] Furthermore, the consumable manufacturing unit includes a first storage wheel, a second storage wheel, a first cutting component, a second cutting component, and a side driving component. The first storage wheel and the second storage wheel are installed between the two groups of second side plates. The first storage wheel is located above the second storage wheel. A proton interaction coil is wound around the outer wall of the first storage wheel, and a hydrophobic coil is wound around the outer wall of the second storage wheel. A first cutting component is arranged at the output end of the proton interaction coil, and a second cutting component is arranged at the output end of the hydrophobic coil. The input end of the side driving component is connected to the active roller. When the active roller drives the exhaust module to be vertically loaded, the side driving component drives the second cutting component to cut out a hydrophobic film. When the active roller drives the anode module to be vertically loaded, the side driving component drives the first cutting component to cut out a proton interaction film.

[0012] Furthermore, the side driving component includes a driven roller, a movable tooth plate, and side fixing plates. The driven roller is arranged between the two groups of first side plates and is located at the bottom of the active roller. The two ends of the active roller are connected to the driven roller through a first transmission belt. The driven roller is connected to a driven wheel through a second transmission belt. A driving gear is arranged on the side wall of the driven wheel. The movable tooth plate is vertically slidably arranged on the side wall of the side fixing plate. The driving gear is meshed and connected with the movable tooth plate. The side fixing plates are symmetrically arranged on the pallet.

[0013] Furthermore, the first cutting component includes a first cutting frame and a first restraint frame. The output end of the proton interaction coil penetrates through the first restraint frame. A first cut is formed on the top surface of the first restraint frame. The first cutting frame is located directly above the first cut. The two sides of the first cutting frame are connected to the top of the inner wall of the movable tooth plate. The two ends of the first restraint frame are connected to the top of the inner wall of the side fixing plate. The second cutting component includes a second cutting frame and a second restraint frame. The output end of the hydrophobic coil penetrates through the second restraint frame. A second cut is formed on the bottom surface of the second restraint frame. The second cutting frame is located directly below the second cut. The two ends of the second cutting frame are connected to the bottom of the inner wall of the movable tooth plate. The two ends of the second restraint frame are connected to the bottom of the inner wall of the side fixing plate. The two ends of the first cutting frame and the second cutting frame are both of open structures.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. The above electro-chemical reaction cell can simultaneously achieve in-situ analysis and detection of Raman (surface substances) and mass spectrometry (gas products), improving the research efficiency of the reaction mechanism of samples, and there is no need to use two sets of equipment separately for analysis and detection; electro-chemical reactions such as hydrogen evolution, CO2 reduction, etc.; 2. The design of each module in the overall three dimensions is convenient for placing the internal raw materials of the module and subsequent docking, can simplify the connection of the liquid path and gas path, and is convenient for maintenance; 3. The gas export module is equipped with a sample sealing unit to encapsulate the sample, which can ensure no leakage of the electrolyte, and at the same time can ensure the directional transmission of the gas. A negative pressure liquid discharge joint is arranged on the outside of the gas export block, which can extract the reaction gas under negative pressure and improve the gas collection speed and mass spectrometry sensitivity. Description of the Drawings

[0015] Figure 1 Schematic structural diagram of the Raman and mass spectrometry combined electro-chemical reaction cell of the present invention; Figure 2 Exploded structural diagram of the overall electro-chemical reaction cell of the present invention; Figure 3 Schematic structural diagram of the cathode chamber of the present invention; Figure 4 Schematic structural diagram of the anode module of the present invention; Figure 5 Schematic structural diagram of the docking of the electro-chemical reaction cell and the flipping unit of the present invention; Figure 6 Schematic structural diagram of the vertical state of the anode chamber of the present invention; Figure 7 Schematic structural diagram of the docking state of the electro-chemical reaction cell of the present invention; Figure 8 Schematic structural diagram of the flipping unit of the present invention; Figure 9 Schematic structural diagram of the connection of the driving roller of the present invention; Figure 10 Schematic cross-sectional side view of the consumable manufacturing unit of the present invention; Figure 11 Schematic structural diagram of the first cutting part and the second cutting part of the present invention; Figure 12 Schematic cross-sectional top view of the consumable manufacturing unit of the present invention; Figure 13 Schematic structural diagram of the first storage roller and the second storage roller of the present invention.

[0016] Reference Signs: 100, cathode module, 110, cathode chamber, 111, first liquid guide port, 112, second liquid guide port, 120, Raman observation window, 130, window sealing cover, 140, reference electrode, 150, first liquid inlet connector, 160, first liquid outlet connector, 200, anode module, 210, anode chamber, 211, third liquid guide port, 212, first through hole, 220, second liquid inlet joint, 230, second liquid discharge joint, 240, counter electrode, 250, first sealing gasket, 251, second through hole, 252, fourth liquid guide port, 260, second sealing gasket, 270, proton interaction membrane, 280, first guide rod, 290, baffle, 291, abutment screw, 300, exhaust module, 310, gas outlet block, 311, receiving groove, 312, negative pressure exhaust joint, 320, sample sealing unit, 321, third sealing gasket, 322, fourth sealing gasket, 323, hydrophobic membrane, 324, porous ceramic sheet, 325, fifth liquid guide port, 330, second guide rod, 331, spring, 340, base, 350, base, 351, slot, 360, first pressure wheel frame, 370, second pressure wheel frame, 400, turning unit, 410, supporting plate, 420, first side plate, 430, driving roller, 440, assembly frame, 441, inclined rod, 442, restraining plate, 443, inserting rod, 444, nut, 450, second side plate, 460, storage plate, 500, consumable material production unit, 510, first storage wheel, 520, second storage wheel, 530, first cutting component, 531, first cutting frame, 532, first constraint frame, 533, first incision, 540, second cutting component, 541, second cutting frame, 542, second constraint frame, 543, second incision, 550, side driving component, 551, driven roller, 552, first transmission belt, 553, second transmission belt, 554, driven wheel, 555, driving gear, 556, movable tooth plate, 557, side fixing plate, 600, proton interaction coil, 700, hydrophobic coil, 800, sample. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Embodiment: The present invention provides a technical solution for a Raman and mass spectrometry coupled electrochemical reaction cell. As Figures 1 - 13 shown, it includes: a cathode module 100, which includes a cathode chamber 110. A Raman observation window 120 is embedded in the top surface of the cathode chamber 110, and a window sealing cover 130 is covered on the top of the Raman observation window 120; a first liquid outlet 111 is opened at the bottom of the cathode chamber 110; a reference electrode 140 is disposed inside the cathode chamber 110; an anode module 200, which is hermetically docked to the side of the cathode chamber 110 and has a counter electrode 240 disposed inside; an exhaust module 300, which includes a gas export block 310. The gas export block 310 is hermetically docked to the bottom surface of the cathode chamber 110. A receiving groove 311 is opened in the middle of the gas export block 310. The receiving groove 311 is relatively placed directly below the first liquid outlet 111. A negative pressure exhaust joint 312 is provided on the side wall of the gas export block 310. The inner wall of the receiving groove 311 is communicated with the negative pressure exhaust joint 312 through a horizontal hole; a sample sealing unit 320 is embedded inside the receiving groove 311. The sample sealing unit 320 is used to make the electrolyte contact the sample and export the reaction gas; a flipping unit 400, which is detachably connected to the exhaust module 300 and is used to drive the exhaust module 300 to flip so that the exhaust module 300 or the anode module 200 is alternately vertical; a consumable production unit 500, which is placed inside the flipping unit 400 to produce test consumables during the flipping process. The negative pressure exhaust joint is connected to a mass spectrometer through a gas pipe.

[0019] In the above solution: 1. The above-mentioned electrochemical reaction cell can simultaneously realize in-situ analysis and detection of Raman (surface substances) and mass spectrometry (gas products), improve the research efficiency of the sample reaction mechanism, and there is no need to use two sets of equipment separately to complete the analysis and detection; electrochemical reactions such as hydrogen evolution, CO2 reduction, etc.; 2. The design of the overall three-dimensional modules is convenient for placing the internal raw materials of the modules and subsequent docking, simplifies the connection of the liquid path and gas path, and is convenient for maintenance; 3. A sample sealing unit 320 is configured in the gas export module to encapsulate the sample, which can ensure that there is no leakage of the electrolyte, and at the same time can ensure the directional transmission of the gas. A negative pressure liquid discharge joint is arranged on the outside of the gas export block 310, which can extract the reaction gas under negative pressure and improve the gas collection speed and mass spectrometry sensitivity; 4. The anode module 200 is of a side-mounted type, making it inconvenient to place each accessory. To solve this problem, a flipping unit 400 is provided. The flipping unit 400 can drive the exhaust module 300 to rotate, causing the exhaust module 300 or the anode module 200 to be alternately vertical. In this way, when the exhaust module 300 is vertical, the test personnel can place the exhaust accessories one by one from bottom to top. Similarly, when the anode module 200 is vertical, the test personnel can also place the anode accessories from bottom to top. 5. The consumable production unit 500 can produce the proton exchange membrane and the hydrophobic membrane 323 required for each test, eliminating the need for manual cutting and production. Moreover, when the flipping unit 400 flips, it can drive the consumable production unit 500 to act, enabling the consumable production unit 500 to automatically complete the cutting action without waiting. After flipping, the test personnel can directly remove the cut film.

[0020] As a preferred embodiment, first liquid inlet connectors 150, first liquid discharge connectors 160, reference electrodes 140, and second liquid guide ports 112 are respectively provided on four sides of the cathode chamber 110. During the test, the electrolyte is input into the cathode chamber 110 through the first liquid inlet connectors 150 and then output through the first liquid discharge connectors 160. The electrolyte can be transmitted to the receiving groove 311 through the first liquid guide port 111; the Raman spectrum of the Raman spectrometer monitors the change of substances on the surface of the reference electrode 140 in real time through the quartz window.

[0021] As a preferred embodiment, the anode module 200 includes an anode chamber 210. An opposite electrode 240 is installed at one end of the anode chamber 210, and a second liquid inlet connector 220 is installed at the other end. A second liquid discharge connector 230 is installed on the top surface of the anode chamber 210. A third liquid guide port 211 is provided on the inner wall of the anode chamber 210. A first gasket 250, a proton exchange membrane 270, and a second gasket 260 are provided between the anode chamber 210 and the cathode chamber 110. The first gasket 250 and the second gasket 260 have the same structure. A fourth liquid guide port 252 is provided in the middle of the first gasket 250. The proton exchange membrane 270 is placed in the middle between the first gasket 250 and the second gasket 260. The proton exchange membrane 270 is used to allow protons in the liquid to flow between the cathode chamber and the anode chamber. The electrolyte enters the anode chamber 210 through the second liquid inlet connector 220 and then is output through the second liquid discharge connector 230. Protons in the cathode chamber 110 and the anode chamber 210 flow through the proton exchange membrane 270. The first gasket 250 and the second gasket 260 can achieve double-layer sealing to prevent liquid leakage; the area of the proton exchange membrane 270 is larger than the cross-section of the fourth liquid guide port.

[0022] As a preferred embodiment, first perforations 212 are formed at the four corners of the anode chamber 210. A set of first guide rods 280 penetrate through each set of first perforations 212. Second perforations 251 are formed at the four corners of the first gasket 250. Both the first gasket 250 and the second gasket 260 are sleeved on the first guide rods 280. The inner ends of the four sets of first guide rods 280 are vertically fixed to the side wall of the cathode chamber 110. The outer ends of the four sets of first guide rods 280 are fixedly connected to a baffle 290. The outwardly moved anode chamber 210 is stopped against the inner side of the baffle 290. A contact screw 291 is rotatably installed at the center of the baffle 290. The first gasket 250, the second gasket 260, and the anode chamber 210 are all hung on the first guide rods 280 to realize the storage of the three components without the need to store them separately in other places. The tester only needs to place the proton exchange membrane 270; When the first guide rods 280 are prevent from flipping, the first gasket 250, the second gasket 260, and the anode chamber 210 will not fall off; After the anode chamber 210 is rotated to the vertical position, the tester can easily place the proton exchange membrane 270 between the first gasket 250 and the second gasket 260, and then rotate the contact screw 291 to push the anode chamber 210 upward, so that the first gasket 250, the proton exchange membrane 270, the second gasket 260, and the anode chamber 210 are closely attached to the side wall of the cathode chamber 110, which can prevent the proton exchange membrane 270 from shifting during subsequent upward flipping.

[0023] As a preferred embodiment, the sample sealing unit 320 includes a third gasket 321, a fourth gasket 322, a hydrophobic membrane 323, and a porous ceramic sheet 324 arranged in sequence from top to bottom. The third gasket 321 and the fourth gasket 322 have the same structure, and the sample 800 is placed between the third gasket 321 and the fourth gasket 322; a fifth liquid guide port 325 is formed inside the third gasket 321. The third gasket 321 and the fourth gasket 322 can seal and position the sample, so that the electrolyte can only contact the sample through the fifth liquid guide port 325. The gas generated by the reaction can pass through the hydrophobic membrane 323 and be discharged, while the liquid is blocked by the hydrophobic membrane 323; As a preferred embodiment, the proton exchange membrane is selected as Nafion117; the hydrophobic and breathable membrane is made of PTFE; the porous ceramic: the pore diameter is 10 - 50μm; each gasket is made of silica gel.

[0024] Traditional module docking is positioned by bolt assembly, which is cumbersome. The following solutions are provided for quickly positioning the anode chamber 210 and the gas export module: Third perforations are provided at the four corners of the gas export block 310, and a set of second guide rods 330 penetrate through the inside of each set of third perforations. The tops of the four second guide rods 330 are vertically fixedly connected to the cathode chamber 110, and the bottoms are vertically fixedly connected to the base 340. A spring 331 is sleeved outside the second guide rod 330. The spring 331 is placed at the bottom of the gas export block 310. The first pressure wheel frame 360 and the second pressure wheel frame 370 are symmetrically and rotatably installed on both sides of the gas export block 310; A base 350 is provided on the bottom surface of the base 340, and slots 351 are symmetrically provided inside the base 350. The side parts of the slots 351 are inserted with a flipping unit 400; When the reaction pool assembly is completed, the gas export block 310 fits against the bottom surface of the cathode chamber 110, the anode chamber 210 fits against the side surface of the cathode chamber 110, the first pressure wheel frame 360 is buckled on one side of the top surface of the cathode chamber 110 away from the anode chamber 210, the second pressure wheel frame 370 is buckled on the outer side surface of the anode chamber 210, and the spring 331 is stretched to quickly complete the positioning of the gas export block 310 and the anode chamber 210.

[0025] 1. The second guide rod 330 can support and position the cathode chamber 110. In this way, the position of the cathode chamber 110 can be determined, and it is only necessary to dock the gas export block 310 and the anode chamber 210 on the side wall of the cathode chamber 110. 2. When the gas export block 310 is docked against the bottom surface of the cathode chamber 110, the spring 331 can be stretched. The tester buckles the first pressure wheel frame 360 and the second pressure wheel frame 370. The spring 331 and the pressure wheel frame constrain the gas export block 310 up and down to achieve rapid positioning of the gas export block 310. At the same time, the second pressure wheel frame 370 presses against the side of the anode chamber 210 to achieve secondary positioning of the anode chamber 210.

[0026] To achieve the flipping of the base 350 and realize the feeding and switching, the following solutions are provided: The flipping unit 400 includes a support plate 410. Two first side plates 420 are vertically provided on the surface of the support plate 410. A driving roller 430 is provided at the top between the two first side plates 420. Assembly frames 440 are symmetrically fixed on the outer wall of the driving roller 430. The assembly frame 440 includes an inclined rod 441 and an insertion rod 443. One end of the inclined rod 441 is fixedly connected to the driving roller 430, the other end of the inclined rod 441 is connected to a constraint plate 442, and the side wall of the constraint plate 442 is connected to the insertion rod 443. The insertion rod 443 is horizontally inserted into the slot 351 and the end is positioned by a nut 444; The driving roller 430 drives the assembly frame 440 to rotate to make the gas export block 310 or the anode chamber 210 vertical; Two second side plates 450 are vertically provided on the surface of the support plate 410. The second side plates 450 are located outside the first side plates 420. A placement plate 460 is provided at the top of the two second side plates 450.

[0027] 1. Test equipment such as the placement board 460, the third sealing gasket 321, the fourth sealing gasket 322, and the porous ceramic sheet 324 can be placed on the placement board 460; 2. The base 350 and the reaction pool above it are detachable for maintenance or can work independently. They can also be docked with the insertion rod 443. When docking, the insertion rod 443 is inserted into the slot 351, and the restraint plate 442 stops the base 350. Then, a nut 444 is screwed onto the end of the insertion rod 443 to achieve the clamping and positioning of the base 350; 3. When the driving roller 430 rotates, it can drive the insertion rod 443 to rotate through the inclined rod 441. The insertion rod 443 drives the base 350 to flip, thereby driving the gas outlet block 310 and the anode chamber 210 to rotate and switch.

[0028] To achieve the rapid preparation of consumables, the following solution is provided: The consumable production unit 500 includes a first storage wheel 510, a second storage wheel 520, a first cutting component 530, a second cutting component 540, and a side driving component 550. The first storage wheel 510 and the second storage wheel 520 are installed between two groups of second side plates 450. The first storage wheel 510 is located above the second storage wheel 520. A proton interaction coil 600 is wound around the outer wall of the first storage wheel 510, and a hydrophobic coil 700 is wound around the outer wall of the second storage wheel 520. A first cutting component 530 is provided at the output end of the proton interaction coil 600, and a second cutting component 540 is provided at the output end of the hydrophobic coil 700. The input end of the side driving component 550 is connected to the driving roller 430. When the driving roller 430 drives the exhaust module 300 to load vertically, the side driving component 550 drives the second cutting component 540 to cut out the hydrophobic film 323. When the driving roller 430 drives the anode module 200 to load vertically, the side driving component 550 drives the first cutting component 530 to cut out the proton interaction film 270. The side driving component 550 can transfer the rotational force of the driving roller 430 to the first cutting component 530 and the second cutting component 540 to realize the automatic shearing operation of the first cutting component 530 and the second cutting component 540.

[0029] As a preferred embodiment, the side driving component 550 includes a driven roller 551, a movable toothed plate 556, and a side fixing plate 557. The driven roller 551 is arranged between two groups of first side plates 420 and is located at the bottom of the driving roller 430. The two ends of the driving roller 430 are connected to the driven roller 551 through a first transmission belt 552. The driven roller 551 is connected to a driven wheel 554 through a second transmission belt. A driving gear 555 is provided on the side wall of the driven wheel 554. The movable toothed plate 556 slides vertically on the side wall of the side fixing plate 557. The driving gear 555 is meshed and connected with the movable toothed plate 556. The side fixing plates 557 are symmetrically arranged on the support plate 410.

[0030] As a preferred embodiment, the first cutting component 530 includes a first cutting frame 531 and a first constraint frame 532. The output end of the proton interaction coil 600 passes through the first constraint frame 532. The top surface of the first constraint frame 532 is provided with a first incision 533. The first cutting frame 531 is located directly above the first incision 533. The two sides of the first cutting frame 531 are connected to the top of the inner wall of the movable tooth plate 556. The two ends of the first constraint frame 532 are connected to the top of the inner wall of the side fixing plate 557. The second cutting component 540 includes a second cutting frame 541 and a second constraint frame 542. The output end of the hydrophobic coil 700 passes through the second constraint frame 542. A second incision 543 is opened on the bottom surface of the second constraint frame 542. The second cutting frame 541 is arranged directly below the second incision 543. The two ends of the second cutting frame 541 are connected to the bottom of the inner wall of the movable tooth plate 556, and the two ends of the second constraint frame 542 are connected to the bottom of the inner wall of the side fixed plate 557. Both ends of the first cutting frame 531 and the second cutting frame 541 are open structures.

[0031] During the specific implementation, the flip unit 400 and the consumable material making unit 500: S1, pull the end of the hydrophobic membrane 323 coil so that the portion to be cut is placed at the second incision 543, and pull the end of the proton exchange coil 600 so that the portion to be cut is placed at the first incision 533; S2. Placement of proton interaction membrane 270: The active roller 430 drives the assembly frame 440 to rotate clockwise, so that the anode bin 210 rotates to a vertical state. During the rotation process, the active roller 430 drives the driven roller 551 to rotate through the first transmission belt 552, and the driven roller 551 drives the driven wheel 554 to rotate through the second transmission belt 553. The driven wheel 554 drives the driving gear 555 to rotate. The driving gear 555 rotates clockwise to drive the movable tooth plate 556 to move downward along the side fixed plate 557. The movable tooth plate 556 drives the first cutting frame 531 downward into the first incision 533, thereby cutting out the proton interaction membrane 270. The test personnel remove the proton interaction membrane 270 from above the first cutting frame 531. The test personnel placed the proton interaction membrane 270 between the first sealing gasket 250 and the second sealing gasket 260, and rotated the abutment screw 291 to lift the anode compartment 210 up and into position; S3. Placement of hydrophobic membrane 323: The driving roller 430 drives the mounting bracket 440 to rotate counterclockwise, causing the gas outlet block 310 to rotate to the vertical state. During the rotation, the driving roller 430 drives the driven roller 551 to rotate through the first transmission belt 552, the driven roller 551 drives the driven wheel 554 to rotate through the second transmission belt 553, the driven wheel 554 drives the driving gear 555 to rotate, and the driving gear 555 rotates counterclockwise to drive the movable toothed plate 556 to move upward along the side fixed plate 557. The movable toothed plate 556 drives the second cutting frame 541 to move upward into the second cut 543, thereby cutting out the hydrophobic film 323. The tester removes the hydrophobic film 323 from below the second cutting frame 541; The porous ceramic sheet 324, the hydrophobic film 323, the fourth gasket 322, the sample, and the third gasket 321 are sequentially placed in the receiving groove 311.

[0032] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A Raman and mass spectrometry coupled electrochemical reaction cell, characterized in that, Comprising: A cathode module, which includes a cathode chamber. A Raman observation window is embedded in the top surface of the cathode chamber, and a window sealing cover is covered on the top of the Raman observation window; A first liquid outlet is opened at the bottom of the cathode chamber; An anode module, which is hermetically docked to the side of the cathode chamber, and a proton exchange membrane is built in the anode module; An exhaust module, which includes a gas export block. The gas export block is hermetically docked to the bottom surface of the cathode chamber. A receiving groove is opened in the middle of the gas export block. The receiving groove is relatively placed directly below the first liquid outlet. A negative pressure exhaust joint is provided on the side wall of the gas export block. The inner wall of the receiving groove is communicated with the negative pressure exhaust joint through a horizontal hole; A sample sealing unit is embedded in the receiving groove. The sample sealing unit is used to make the electrolyte contact the sample and export the reaction gas; The sample sealing unit includes a hydrophobic membrane; A flipping unit, which is detachably connected to the exhaust module and is used to drive the exhaust module to flip, so that the exhaust module or the anode module is alternately vertical; A consumable manufacturing unit, whose driving end is connected to the flipping unit and is used to manufacture the required proton exchange membrane or hydrophobic membrane during the flipping process.

2. The Raman and mass spectrometry combined electrochemical reaction cell according to claim 1, wherein: Each of the four side surfaces of the cathode chamber is provided with a first liquid inlet joint, a first liquid discharge joint, a reference electrode, and a second liquid outlet.

3. The Raman and mass spectrometry coupled electrochemical reaction cell according to claim 2, wherein: The anode module includes an anode chamber. A counter electrode is installed at one end of the anode chamber, and a second liquid inlet joint is installed at the other end. A second liquid discharge joint is installed on the top surface of the anode chamber. A third liquid outlet is opened on the inner wall of the anode chamber. A first gasket, a proton exchange membrane, and a second gasket are provided between the anode chamber and the cathode chamber. The first gasket and the second gasket have the same structure. A fourth liquid outlet is opened in the middle of the first gasket. The proton exchange membrane is placed in the middle between the first gasket and the second gasket. The proton exchange membrane is used to make protons in the liquid flow between the cathode chamber and the anode chamber.

4. A Raman and mass spectrometry coupled electrochemical reaction cell according to claim 3, characterized in that: First through holes are opened at the four corners of the anode chamber. A set of first guide rods penetrate through each set of first through holes. Second through holes are opened at the four corners of the first gasket. Both the first gasket and the second gasket are sleeved on the first guide rods. The inner ends of the four sets of first guide rods are vertically fixed on the side wall of the cathode chamber. The outer ends of the four sets of first guide rods are fixedly connected to a baffle. The outwardly moved anode chamber is stopped inside the baffle. A contact screw is rotatably installed at the center of the baffle.

5. A Raman and mass spectrometry coupled electrochemical reaction cell according to claim 4, characterized in that: Third through holes are opened at the four corners of the gas export block. A set of second guide rods penetrate through each set of third through holes. The top ends of the four sets of second guide rods are vertically fixed to the cathode chamber, and the bottom ends are vertically fixed to the base. A spring is sleeved outside the second guide rods. The spring is placed at the bottom of the gas export block. A first press wheel frame and a second press wheel frame are symmetrically and rotatably installed on both sides of the gas export block; A base is provided on the bottom surface of the base. Slots are symmetrically provided inside the base. The flipping unit is inserted into the side of the slot; When the reaction cell is assembled, the gas export block fits on the bottom surface of the cathode chamber, the anode chamber fits on the side of the cathode chamber, the first press wheel frame is buckled on the side of the top surface of the cathode chamber away from the anode chamber, the second press wheel frame is buckled on the outer side of the anode chamber, and the spring is stretched to quickly complete the positioning of the gas export block and the anode chamber.

6. A Raman and mass spectrometry combined electrochemical reaction cell according to claim 1, characterized in that: The sample sealing unit includes a third sealing pad, a fourth sealing pad, a hydrophobic membrane, and a porous ceramic plate arranged in sequence from top to bottom. The third sealing pad and the fourth sealing pad have the same structure, and the sample is placed between the third sealing pad and the fourth sealing pad. A fifth liquid guiding port is formed inside the third sealing pad.

7. A Raman and mass spectrometry coupled electrochemical reaction cell according to claim 1, characterized in that: The flipping unit includes a supporting plate. Two groups of first side plates are vertically arranged on the surface of the supporting plate. A driving roller is arranged at the top between the two groups of first side plates. Assembly frames are symmetrically fixed on the outer wall of the driving roller. The assembly frame includes an inclined rod and a plug rod. One end of the inclined rod is fixedly connected to the driving roller, the other end of the inclined rod is connected to a constraint plate, the side wall of the constraint plate is connected to the plug rod, and the plug rod is horizontally inserted into the slot and positioned at the end through a nut. The driving roller drives the assembly frame to rotate so that the gas outlet block or the anode chamber is vertical. Two groups of second side plates are vertically arranged on the surface of the supporting plate. The second side plates are located outside the first side plates, and a placing plate is arranged at the top ends of the two groups of second side plates.

8. A Raman and mass spectrometry coupled electrochemical reaction cell according to claim 7, characterized in that: The consumable manufacturing unit includes a first storage wheel, a second storage wheel, a first cutting component, a second cutting component, and a side driving component. The first storage wheel and the second storage wheel are installed between the two groups of second side plates. The first storage wheel is located above the second storage wheel. A proton interaction coil is wound around the outer wall of the first storage wheel, and a hydrophobic coil is wound around the outer wall of the second storage wheel. A first cutting component is arranged at the output end of the proton interaction coil, and a second cutting component is arranged at the output end of the hydrophobic coil. The input end of the side driving component is connected to the driving roller. When the driving roller drives the exhaust module to load vertically, the side driving component drives the second cutting component to cut out the hydrophobic membrane. When the driving roller drives the anode module to load vertically, the side driving component drives the first cutting component to cut out the proton interaction membrane.

9. A Raman and mass spectrometry coupled electrochemical reaction cell according to claim 8, characterized in that: The side driving component includes a driven roller, a movable toothed plate, and side fixing plates. The driven roller is arranged between the two groups of first side plates and at the bottom of the driving roller. Both ends of the driving roller are connected to the driven roller through a first transmission belt. The driven roller is connected to a driven wheel through a second transmission belt. A driving gear is arranged on the side wall of the driven wheel. The movable toothed plate is vertically slidably placed on the side wall of the side fixing plate. The driving gear is meshed with the movable toothed plate. The side fixing plates are symmetrically placed on the supporting plate.

10. A Raman and mass spectrometry coupled electrochemical reaction cell according to claim 9, characterized in that: The first cutting component includes a first cutting frame and a first constraint frame. The output end of the proton interaction coil penetrates through the first constraint frame. A first cutting opening is formed on the top surface of the first constraint frame. The first cutting frame is located directly above the first cutting opening. Both sides of the first cutting frame are connected to the top of the inner wall of the movable toothed plate. Both ends of the first constraint frame are connected to the top of the inner wall of the side fixing plate. The second cutting component includes a second cutting frame and a second constraint frame. The output end of the hydrophobic coil penetrates through the second constraint frame. A second cutting opening is formed on the bottom surface of the second constraint frame. The second cutting frame is located directly below the second cutting opening. Both ends of the second cutting frame are connected to the bottom of the inner wall of the movable toothed plate. Both ends of the second constraint frame are connected to the bottom of the inner wall of the side fixing plate. Both ends of the first cutting frame and the second cutting frame are of an open structure.

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