Device for preparing graphene through electrochemical intercalation

Abstract

The utility model relates to the technical field of graphene preparation, and discloses a device for preparing graphene by electrochemical intercalation, which comprises an electrolytic tank, an electrochemical intercalation layer, a first electrode, a second electrode, a third electrode and a fourth electrode, the electrolytic tank is of a square open structure, and the bottom of an inner cavity of the electrolytic tank is funnel-shaped; the top of the filter box is communicated with the electrolytic tank through a connecting pipe; the stirring assembly comprises a rotating shaft which is transversely and rotationally connected to the interior of the electrolytic tank, the rotating shaft is of a hollow structure, and stirring rods are arranged on the outer portion of the rotating shaft at equal intervals in the circumferential direction; the anti-blocking collecting assembly comprises a filter plate, the filter plate is horizontally arranged, and filter holes penetrating through the filter plate are uniformly formed in the surface of the filter plate; the rotating rod is transversely arranged and rotationally connected to the lower portion of the center of the filter plate, eccentric wheels are symmetrically and fixedly arranged on the outer portion of the rotating rod in a sleeving mode, the graphene electrolysis rate can be increased, graphene can be conveniently collected, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of graphene preparation, in particular to a device for preparing graphene by electrochemical intercalation. Background Art

[0002] Graphene is a sp 2 A new material in which hybrid connected carbon atoms are tightly stacked into a single-layer two-dimensional honeycomb lattice structure. Graphene has excellent optical, electrical, and mechanical properties, and has important application prospects in materials science, micro-nano processing, energy, biomedicine, and drug delivery. It is considered to be a revolutionary material in the future. Graphene is usually prepared by electrochemical exfoliation, so a special electrochemical intercalation preparation device is required.

[0003] In the Chinese utility model patent with the announcement number CN219409925U, an electrolytic reaction device for preparing graphene is disclosed. The device drives the mounting block and the fixed rod to rotate 180 degrees by rotating the rotating rod, and the movable rod rotates around the fixed rod, so that the fixed block and the graphite paper are always arranged vertically, driving the graphite paper arranged above to be immersed in the electrolyte, which is convenient for the electrolytic reaction of the graphite paper, and the graphite paper below is rotated to the top of the inner cavity of the electrolytic cell, which is convenient for replacing the graphite paper and improving the production efficiency. With respect to the above-mentioned related technologies, the inventor believes that there are the following defects:

[0004] In actual use, the device lacks an integrated structure for stirring the electrolyte, making it difficult to destroy the concentration distribution in the solution to accelerate the diffusion of ions, thereby reducing the electrolysis rate of graphene. At the same time, the electrolyzed graphene will be mixed in the electrolyte. Since the device lacks a structure for filtering and collecting graphene, the difficulty of collecting graphene is increased. For this reason, we provide a device for preparing graphene by electrochemical intercalation. Utility Model Content

[0005] In order to solve the problems of low electrolysis rate and difficulty in collecting graphene in the above-mentioned background technology, the utility model provides a device for preparing graphene by electrochemical intercalation.

[0006] The utility model adopts the following technical solution to achieve: a device for preparing graphene by electrochemical intercalation, comprising:

[0007] An electrolytic cell, wherein the electrolytic cell is a square open structure, and the bottom of the inner cavity of the electrolytic cell is designed in a funnel shape;

[0008] A filter box, the filter box is a square hollow structure, the top of the filter box is connected to the electrolytic cell through a connecting pipe, the bottom of the filter box is fixedly connected to a drain pipe, and one end of the filter box is hinged with a movable door;

[0009] A stirring assembly, the stirring assembly comprising a rotating shaft which is rotatably connected to the inside of the electrolytic cell in a transverse direction and is a hollow structure, stirring rods are equidistantly arranged on the outside of the rotating shaft in a circumferential direction, and one end of the rotating shaft is coaxially fixedly connected to a motor;

[0010] An anti-clogging collection component, the anti-clogging collection component comprises a filter plate, the filter plate is horizontally arranged and has filter holes uniformly opened on the surface thereof that penetrate the filter plate;

[0011] The rotating rod is arranged transversely and rotatably connected below the center of the filter plate, and an eccentric wheel is symmetrically fixed on the outer sleeve of the rotating rod.

[0012] As a further improvement of the above solution, the stirring assembly further includes:

[0013] A fixed shaft is arranged inside the rotating shaft and one end of the fixed shaft is fixedly connected to the inner wall of the electrolytic cell. The outer equidistant fixed sleeve of the fixed shaft is provided with a bevel gear ring, the bevel gear ring is meshedly connected with a bevel gear, and the bevel gear is fixedly connected to the stirring rod through a connecting shaft.

[0014] As a further improvement of the above solution, the anti-clogging collection assembly further includes:

[0015] Two groups of connecting blocks are respectively arranged on both sides of the filter plate and movably connected to the filter plate, the top of the connecting block is symmetrically hinged with a connecting rod, both sides of the upper part of the inner cavity of the filter box are fixedly connected with sliding rods, the outside of the sliding rod is symmetrically slidably connected with sliders and is respectively hinged with the two groups of connecting rods, and springs are also sleeved on the outside of both sides of the sliding rod.

[0016] As a further improvement of the above scheme, the connecting pipe is internally rotatably connected with an impeller, and the impeller and one end of the rotating rod are both externally fixed with transmission gears, and the two sets of transmission gears are connected via a transmission belt.

[0017] As a further improvement of the above solution, one end of the rotating rod is coaxially fixedly connected to a hand wheel.

[0018] As a further improvement of the above solution, sliding grooves are provided on the opposite surfaces of the two groups of connecting blocks, and sliding blocks are fixedly connected to both sides of the filter plate and are slidably connected to the sliding grooves.

[0019] As a further improvement of the above scheme, a magnet piece 1 is fixedly installed inside the slide groove, and a magnet piece 2 is fixedly installed on one end of the sliding block corresponding to the magnet piece 1, and the magnetic pole directions of the magnet piece 1 and the magnet piece 2 are opposite.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. The utility model drives the rotating shaft to rotate through a motor, so that the stirring rod can be driven to rotate, thereby stirring the electrolyte to increase the diffusion rate of ions in the electrolyte. At the same time, the rotation of the stirring rod will also drive the bevel gear coaxially fixedly connected thereto to rotate. The meshing action of the bevel gear and the bevel gear ring can drive the bevel gear to rotate, thereby driving the stirring rod to rotate and improve the stirring effect of the electrolyte, further improving the electrolysis rate of graphene.

[0022] 2. When the utility model discharges the electrolyte, the added filter plate can filter out the graphene therein, and by converging the electrolyte, and the connection pipe has a certain height distance from the filter box, the impact force of the discharged electrolyte can be increased, the electrolyte impacts the impeller to drive it to rotate, and the transmission gear and the transmission toothed belt are used to drive the rotating rod to rotate. The rotation of the rotating rod drives the eccentric wheel to rotate and can push the connecting block upward, so that the filter plate can be lifted up. At this time, the connecting block and the hinged effect of the slider and the connecting rod are used, and the sliding cooperation of the slider and the slide rod can push the slider to move to the end of the slide rod and squeeze the spring. When the eccentric wheel rotates away from the connecting block, the filter plate will automatically reset under the elastic action of the spring. Such a cycle achieves the purpose of vertically vibrating the filter plate, effectively avoiding the clogging of the filter hole and affecting the filtering of the graphene. After the filtration is completed, the filter plate can be pulled out to quickly collect the graphene, which is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the vertical section of the three-dimensional structure of the anti-clogging collection component of the utility model;

[0025] Figure 3 This is a cross-sectional structural diagram of the stirring assembly of the utility model;

[0026] Figure 4 This is a schematic diagram of the cross-sectional structure of the connecting block of the utility model.

[0027] Description of main symbols:

[0028] 1. Electrolytic cell; 2. Filter box; 3. Impeller; 4. Transmission belt; 5. Magnet sheet 1; 101. Rotating shaft; 102. Stirring rod; 103. Fixed shaft; 104. Bevel gear ring; 105. Bevel gear; 201. Filter plate; 202. Rotating rod; 203. Eccentric wheel; 204. Connecting block; 205. Connecting rod; 206. Sliding rod; 207. Sliding block; 208. Spring. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0030] Embodiment 1:

[0031] Please combine Figure 1-4 , a device for preparing graphene by electrochemical intercalation of this embodiment includes:

[0032] The electrolytic cell 1 is a square open structure, and the bottom of the inner cavity of the electrolytic cell 1 is designed in a funnel shape;

[0033] The filter box 2 is a square hollow structure. The top of the filter box 2 is connected to the electrolytic cell 1 through a connecting pipe. The bottom of the filter box 2 is fixedly connected to a drain pipe. One end of the filter box 2 is hinged with a movable door.

[0034] A stirring assembly, the stirring assembly includes a rotating shaft 101 which is rotatably connected to the inside of the electrolytic cell 1 in a transverse direction and is a hollow structure. Stirring rods 102 are equidistantly arranged on the outside of the rotating shaft 101 in a circumferential direction. One end of the rotating shaft 101 is coaxially fixedly connected to a motor.

[0035] The anti-clogging collection component includes a filter plate 201, the filter plate 201 is horizontally arranged and has filter holes uniformly opened on the surface thereof that penetrate the filter plate 201;

[0036] The rotating rod 202 is horizontally arranged and rotatably connected below the center of the filter plate 201. The eccentric wheel 203 is symmetrically fixed on the outside of the rotating rod 202. The impeller 3 is rotatably connected inside the connecting pipe. The impeller 3 and one end of the rotating rod 202 are fixedly sleeved with transmission gears. The two sets of transmission gears are connected through a transmission belt 4.

[0037] The stirring assembly also includes:

[0038] The fixed shaft 103 is arranged inside the rotating shaft 101 and one end of the fixed shaft 103 is fixedly connected to the inner wall of the electrolytic cell 1. The fixed shaft 103 is equidistantly fixedly sleeved outside with a bevel gear ring 104. The bevel gear ring 104 is meshedly connected with a bevel gear 105. The bevel gear 105 is fixedly connected to the stirring rod 102 through a connecting shaft.

[0039] The anti-clogging collection assembly also includes:

[0040] Two groups of connecting blocks 204 are respectively arranged on both sides of the filter plate 201 and are movably connected to the filter plate 201. The top of the connecting block 204 is symmetrically hinged with a connecting rod 205. Both sides of the upper part of the inner cavity of the filter box 2 are fixedly connected with sliding rods 206. The outside of the sliding rod 206 is symmetrically slidably connected with a slider 207 and is respectively hinged with the two groups of connecting rods 205. Springs 208 are also sleeved on the outside of the sliding rod 206. The opposite surfaces of the two groups of connecting blocks 204 are provided with sliding grooves. Both sides of the filter plate 201 are fixedly connected with sliding blocks and slidably connected with the sliding grooves, which is convenient for quickly disassembling and assembling the filter plate 201. A magnet sheet 5 is fixedly installed inside the sliding groove, and a magnet sheet 2 is fixedly installed on one end of the sliding block corresponding to the magnet sheet 5. The magnetic pole directions of the magnet sheet 5 and the magnet sheet 2 are oppositely arranged, which can prevent the filter plate 201 from automatically sliding outward during the vibration process.

[0041] The implementation principle of an apparatus for preparing graphene by electrochemical intercalation in the embodiment of the present application is as follows: graphite is placed in an electrolytic cell 1 and an electrolyte is added thereto, the electrolyte is electrolyzed by the electrolytic cell so that graphene can be prepared, the rotating shaft 101 is driven to rotate by a motor, so that the stirring rod 102 can be driven to rotate, thereby stirring the electrolyte to increase the diffusion rate of ions in the electrolyte, and at the same time, the rotation of the stirring rod 102 will also drive the bevel gear 105 coaxially fixed thereto to rotate, and the meshing action of the bevel gear 105 and the bevel gear ring 104 can be used to drive the bevel gear 105 to rotate, thereby driving the stirring rod 102 to rotate on its own to increase the stirring effect on the electrolyte, further increasing the electrolysis rate of graphene, and after the preparation is completed, the electrolyte is discharged into the filter box 2, and the added filter plate 201 can filter out the graphene therein, and by converging the electrolyte, the connection pipe is at a certain distance from the filter box 2. The degree of discharge of electrolyte can increase the impact force of the discharged electrolyte, and the electrolyte impacts the impeller 3 to drive it to rotate, and the transmission gear and the transmission toothed belt 4 are used to drive the rotating rod 202 to rotate. The rotation of the rotating rod 202 drives the eccentric wheel 203 to rotate, which can push the connecting block 204 upward, so that the filter plate 201 can be lifted up. At this time, the connecting block 204 and the hinged action of the slider 207 and the connecting rod 205 are used, and the sliding cooperation of the slider 207 and the slide bar 206 can push the slider 207 to move to the end of the slide bar 206 and squeeze the spring 208. When the eccentric wheel 203 rotates away from the connecting block 204, the filter plate 201 will automatically reset under the elastic action of the spring 208. Such a cycle achieves the purpose of vertically vibrating the filter plate 201, effectively avoiding the clogging of the filter hole and affecting the filtering of graphene. After the filtration is completed, the filter plate 201 can be pulled out to quickly collect the graphene.

[0042] Embodiment 2:

[0043] This embodiment is further improved on the basis of the embodiment 1 in that one end of the rotating rod 202 is coaxially fixedly connected with a hand wheel, so that when the electrolyte flow is insufficient to drive the impeller 3 to rotate, the rotating rod 202 can be manually driven to rotate to vibrate the filter plate 201.

[0044] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A device for preparing graphene by electrochemical intercalation, characterized in that: include: An electrolytic cell (1), wherein the electrolytic cell (1) is a square open structure, and the bottom of the inner cavity of the electrolytic cell (1) is designed in a funnel shape; A filter box (2), the filter box (2) is a square hollow structure, the top of the filter box (2) is connected to the electrolytic cell (1) via a connecting pipe, the bottom of the filter box (2) is fixedly connected to a drain pipe, and one end of the filter box (2) is hinged with a movable door; A stirring assembly, the stirring assembly comprising a rotating shaft (101) connected to the inside of the electrolytic cell (1) in a transversely rotatable manner, the rotating shaft (101) being a hollow structure, stirring rods (102) being equidistantly arranged circumferentially outside the rotating shaft (101), and a motor being coaxially fixedly connected to one end of the rotating shaft (101); An anti-clogging collection component, the anti-clogging collection component comprising a filter plate (201), the filter plate (201) being arranged horizontally and having filter holes uniformly formed on its surface that penetrate the filter plate (201); The rotating rod (202) is arranged transversely and rotatably connected below the center of the filter plate (201), and an eccentric wheel (203) is symmetrically fixedly sleeved outside the rotating rod (202).

2. The device for preparing graphene by electrochemical intercalation according to claim 1, characterized in that: The stirring assembly also includes: A fixed shaft (103), wherein the fixed shaft (103) is arranged inside the rotating shaft (101) and one end of the fixed shaft is fixedly connected to the inner wall of the electrolytic cell (1), and an equidistant fixed sleeve is provided outside the fixed shaft (103) with a bevel gear ring (104), and the bevel gear ring (104) is meshedly connected with a bevel gear (105), and the bevel gear (105) is fixedly connected to the stirring rod (102) via a connecting shaft.

3. The device for preparing graphene by electrochemical intercalation according to claim 1, characterized in that: The anti-clogging collection assembly also includes: Two groups of connection blocks (204), the two groups of connection blocks (204) are respectively arranged on both sides of the filter plate (201) and are movably connected to the filter plate (201), the top of the connection block (204) is symmetrically hinged with a connection rod (205), both sides of the upper part of the inner cavity of the filter box (2) are fixedly connected with a slide rod (206), the outside of the slide rod (206) is symmetrically slidably connected with a slider (207) and is respectively hinged to the two groups of connection rods (205), and springs (208) are also sleeved on the outside of both sides of the slide rod (206).

4. The device for preparing graphene by electrochemical intercalation according to claim 1, characterized in that: The connecting pipe is rotatably connected to an impeller (3) inside, and the impeller (3) and one end of the rotating rod (202) are both fixedly sleeved with transmission gears outside, and the two sets of transmission gears are connected through a transmission toothed belt (4).

5. The device for preparing graphene by electrochemical intercalation according to claim 1, characterized in that: One end of the rotating rod (202) is also coaxially fixedly connected to a hand wheel.

6. The device for preparing graphene by electrochemical intercalation as claimed in claim 3, characterized in that: The opposing surfaces of the two groups of connection blocks (204) are provided with sliding grooves, and sliding blocks are fixedly connected to both sides of the filter plate (201) and are slidably connected to the sliding grooves.

7. The device for preparing graphene by electrochemical intercalation according to claim 6, characterized in that: A magnet sheet 1 (5) is fixedly installed inside the slide groove, and a magnet sheet 2 is fixedly installed at one end of the sliding block corresponding to the magnet sheet 1 (5), and the magnetic pole directions of the magnet sheet 1 (5) and the magnet sheet 2 are arranged in opposite directions.

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