CN220154336U - Photoelectrochemistry in-situ reaction tank suitable for thin film photoelectrode - Google Patents
Photoelectrochemistry in-situ reaction tank suitable for thin film photoelectrode Download PDFInfo
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- CN220154336U CN220154336U CN202321304924.1U CN202321304924U CN220154336U CN 220154336 U CN220154336 U CN 220154336U CN 202321304924 U CN202321304924 U CN 202321304924U CN 220154336 U CN220154336 U CN 220154336U
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- thin film
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 90
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 57
- 239000010409 thin film Substances 0.000 title claims abstract description 26
- 210000003298 dental enamel Anatomy 0.000 claims abstract description 23
- 239000003792 electrolyte Substances 0.000 claims abstract description 23
- 210000005056 cell body Anatomy 0.000 claims abstract description 4
- 210000004027 cell Anatomy 0.000 claims description 36
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 16
- -1 polytetrafluoroethylene Polymers 0.000 claims description 10
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 10
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 239000004065 semiconductor Substances 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 229910021607 Silver chloride Inorganic materials 0.000 claims description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims 1
- 238000001228 spectrum Methods 0.000 abstract description 28
- 238000012360 testing method Methods 0.000 abstract description 24
- 239000002585 base Substances 0.000 abstract description 6
- 238000011160 research Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 239000002253 acid Substances 0.000 abstract description 2
- 239000003513 alkali Substances 0.000 abstract description 2
- 239000012780 transparent material Substances 0.000 abstract description 2
- 239000010453 quartz Substances 0.000 description 8
- 230000008901 benefit Effects 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008033 biological extinction Effects 0.000 description 5
- 239000010408 film Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000005286 illumination Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 239000000741 silica gel Substances 0.000 description 4
- 229910002027 silica gel Inorganic materials 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000002189 fluorescence spectrum Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 241000731961 Juncaceae Species 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
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- 230000000149 penetrating effect Effects 0.000 description 2
- 238000004611 spectroscopical analysis Methods 0.000 description 2
- 238000000862 absorption spectrum Methods 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
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Abstract
The utility model belongs to the technical field of photoelectrochemistry tests, and discloses a photoelectrochemistry in-situ reaction tank suitable for a thin film photoelectrode, which comprises a base and an in-situ tank main body fixed on the base; the inside cavity that is of normal position pond main part, set up reference electrode groove and the counter electrode groove with cavity intercommunication in normal position pond main part upper portion, set up the enamel with cavity intercommunication in normal position pond main part one side, set up electrolyte chamber between enamel and cavity, still be provided with working electrode in one side that the normal position pond main part set up the enamel. The in-situ cell body is small in quantity, effectively shortens the electrode spacing, greatly improves the material transmission in the reaction process, is beneficial to the photoelectrochemical reaction, is easy to mount and dismount, is convenient to clean, has a compact structure after assembly, is resistant to acid and alkali, is suitable for working electrodes made of various transparent materials, has a simple structure and low cost, can ensure the accuracy of photoelectrochemical property test and in-situ spectrum test, and is beneficial to improving the research quality.
Description
Technical Field
The utility model belongs to the technical field of photoelectrochemistry tests, and particularly relates to a photoelectrochemistry in-situ reaction tank suitable for a thin film photoelectrode. The method can realize the analysis and test of the photoelectric conversion performance of the thin film photoelectrode, and can also realize the in-situ spectrum research of electrochemical fluorescence spectrum, ultraviolet-visible absorption spectrum and the like of the thin film photoelectrode.
Background
The development and design of semiconductor thin film photoelectrodes to achieve efficient utilization of solar energy, i.e., to increase the efficient conversion efficiency of solar energy-electric energy and solar energy-chemical energy, has become one of the effective approaches to solve the global energy crisis. Photoelectrodes are generally composed of multilayer semiconductor thin films or metallic nanostructures grown on conductive glass such as FTO, ITO, etc. with good light absorption efficiency. The photoelectric conversion efficiency of the thin film photoelectrode and the test of photoelectrochemical products need to be carried out in a photoelectrochemical reaction cell.
At present, the conventional commercialized photoelectrochemical reaction tanks mainly comprise the following two types: 1. the square reaction tank consists of quartz glass, and a tank cover made of polytetrafluoroethylene is attached to the square reaction tank to fix three electrodes; 2. a reaction tank made of polytetrafluoroethylene is provided with a quartz optical window and a sample fixing clamp to finish the irradiation and the fixing of a working electrode. Both reaction tanks have certain advantages, but the disadvantages are also obvious. Summarizing the photoelectrochemical reaction tanks commonly used at present, the following problems mainly exist:
1. the function is single, only photoelectric conversion efficiency or electrochemical impedance test can be carried out, and in-situ spectrum research is difficult to realize while electric signals are measured: a. the reaction tank is large in size, the spectrometer is difficult to match, and the in-situ spectrum test cannot be carried out by coupling into the optical path system in the sample cabin of the spectrometer; b. the light source passes through the quartz window and electrolyte from the front and is incident on the working electrode, and the generated weak light signals (such as fluorescence, absorption, extinction and the like) are attenuated in the multi-medium penetrating and long-distance collecting process, so that in-situ spectrum signals cannot be obtained;
2. the reaction cell is large in size, and thus a large amount of electrolyte is required. Meanwhile, the distance between the working electrode and the reference electrode as well as between the working electrode and the counter electrode is large, so that the material transmission of a three-electrode system is limited, and a large overpotential is introduced, so that the photocurrent generated in the photoelectrochemical reaction is small, and the progress of the photoelectrochemical reaction is not facilitated;
3. the quartz square reaction tank has poor tightness, and is difficult to effectively detect trace gas products generated in the photoelectrochemical reaction process;
4. the polytetrafluoroethylene reaction tank is complex in structure, the disassembly and cleaning process of the reaction tank is complex, the quartz window is fixed, the disassembly is easy to damage, and the photoelectric conversion and the in-situ electrochemical spectrum test result are easily affected due to incomplete cleaning of the reaction tank.
Through the above analysis, the problems and defects existing in the prior art are as follows:
1. the function is single, only photoelectric conversion efficiency or electrochemical impedance test can be carried out, and in-situ spectrum research is difficult to realize while electric signals are measured: a. the reaction tank is large in size, the spectrometer is difficult to match, and the in-situ spectrum test cannot be carried out by coupling into the optical path system in the sample cabin of the spectrometer; b. the light source passes through the quartz window and electrolyte from the front and is incident on the working electrode, and the generated weak light signals (such as fluorescence, absorption, extinction and the like) are attenuated in the multi-medium penetrating and long-distance collecting process, so that in-situ spectrum signals cannot be obtained;
2. the reaction cell is large in size, and thus a large amount of electrolyte is required. Meanwhile, the distance between the working electrode and the reference electrode as well as between the working electrode and the counter electrode is large, so that the material transmission of a three-electrode system is limited, and a large overpotential is introduced, so that the photocurrent generated in the photoelectrochemical reaction is small, and the progress of the photoelectrochemical reaction is not facilitated;
3. the quartz square reaction tank has poor tightness, and is difficult to effectively detect trace gas products generated in the photoelectrochemical reaction process;
4. the polytetrafluoroethylene reaction tank is complex in structure, the disassembly and cleaning process of the reaction tank is complex, the quartz window is fixed, the disassembly is easy to damage, and the photoelectric conversion and the in-situ electrochemical spectrum test result are easily affected due to incomplete cleaning of the reaction tank.
Disclosure of Invention
Aiming at the problems existing in the prior art, the utility model provides the photoelectrochemical in-situ reaction tank suitable for the thin film photoelectrode, which has the advantages of good sealing property, simplicity in disassembly and cleaning, convenience in use and contribution to photoelectrochemical reaction, and solves the problem that the existing reaction tank cannot measure electrochemical signals and spectrum signals at the same time.
The utility model is realized in such a way that the photoelectrochemistry in-situ reaction tank suitable for the thin film photoelectrode comprises a base and an in-situ tank main body fixed on the base; the inside cavity that is of normal position pond main part, set up reference electrode groove and the counter electrode groove with cavity intercommunication in normal position pond main part upper portion, set up the enamel with cavity intercommunication in normal position pond main part one side, set up electrolyte chamber between enamel and cavity, still be provided with working electrode in one side that the normal position pond main part set up the enamel.
Further, the enamel is round enamel with the diameter of 23mm and the thickness of 6mm and is used for fixing a working electrode, and the working electrode is connected and fixed with the enamel through an O-shaped gasket, a silica gel gasket, a metal gasket and a clip.
Further, the working electrode is a semiconductor thin film and a metal nanostructured multilayer thin film grown on a conductive glass.
Further, the reference electrode groove and the counter electrode groove are threaded slots with the inner diameter of 8mm and the outer diameter of 14mm, and the reference electrode groove and the counter electrode groove are internally provided with a reference electrode and a counter electrode.
Further, the reference electrode adopts a silver/silver chloride electrode, the counter electrode adopts a platinum wire coil, and the reference electrode and the counter electrode are fixed in the reference electrode groove and the counter electrode groove through a polytetrafluoroethylene sealing plug and an O-shaped ring.
Further, the incident light irradiates the working electrode from the back surface, and the working electrode performs photoelectrochemical reaction on the side contacting the electrolyte, and the reaction area of the working electrode is equal to the area of a round hole with the diameter of 8mm positioned on the side surface of the in-situ cell main body.
Further, the electrolyte is injected into the electrolyte chamber through the upper reference electrode cell or the counter electrode cell.
Further, the in-situ cell base and the main body are made of quartz glass.
In combination with the technical scheme and the technical problems to be solved, the technical scheme to be protected has the following advantages and positive effects:
the first, the utility model carries on the in situ reaction tank of the photoelectrochemistry experiment, fix the working electrode on enamel position of side of reaction tank through O-type gasket, silica gel gasket, metal gasket and clamp, after pouring electrolyte from the electrode tank above the reaction tank, install reference electrode and counter electrode in reference electrode tank and counter electrode tank through polytetrafluoroethylene plug separately, the three electrode system reaction tank is assembled. When in use, the reaction tank is only required to be placed in a camera bellows or a sample cabin light path in an in-situ spectrum experiment. By adjusting the irradiation direction of the light of the reaction Chi Rushe, the impedance test of photoelectric conversion efficiency and illumination condition, and the in-situ spectroscopy measurement of fluorescence spectrum, ultraviolet visible absorption or extinction spectrum and the like can be realized.
The in-situ cell is suitable for photoelectric conversion experiments or in-situ electrochemical spectrum experiments of the film working electrode in any pH electrolyte, not only can obtain electric signals and spectrum signals at any stage of reaction, but also can obtain electric signals and spectrum signals at any electrochemical potential, and has strong universality.
Secondly, the in-situ cell body is small in quantity, the electrode spacing is effectively shortened, the material transmission in the reaction process is greatly improved, and the photoelectrochemical reaction is facilitated.
The in-situ cell has the advantages of simple structure, easy installation and disassembly, convenient cleaning, compact structure after assembly, no leakage of liquid, acid resistance and alkali resistance, and is suitable for working electrodes made of various transparent materials. Besides being suitable for photoelectric conversion test, after adjusting the incident angle of the light source, the device can also be used for in-situ electrochemical spectrum test such as fluorescence, absorption, extinction and the like, and has strong universality.
The utility model has the advantages of simple structure and low cost, can ensure the accuracy of photoelectrochemical property test and in-situ spectrum test, and is beneficial to improving the research quality.
The utility model can realize the impedance test of photoelectric conversion efficiency and illumination condition, and the in-situ spectroscopy measurement of fluorescence spectrum, ultraviolet visible absorption or extinction spectrum, etc. by adjusting the irradiation direction of the reaction Chi Rushe light.
Thirdly, as inventive supplementary evidence of the claims of the present utility model, the following important aspects are also presented:
(1) The expected benefits and commercial values after the technical scheme of the utility model is converted are as follows:
with reference to the market price of the existing photoelectrochemical reaction tank (800-2000 yuan for quartz square reaction tank and 3500-4500 yuan for polytetrafluoroethylene reaction tank), the market price converted by the technical scheme of the utility model is not lower than 2000 yuan, and the profit of each utility model is not less than 1000 yuan after the raw material cost, the processing cost and the transportation cost are deducted, thus having good commercial value and market popularization prospect.
(2) The technical scheme of the utility model fills the technical blank in the domestic and foreign industries:
the technical scheme of the utility model provides the photoelectrochemical reaction tank which is suitable for in-situ electrochemical spectrum test in the sample cabin of the ultraviolet-visible and fluorescence spectrometer, has small size, is beneficial to photoelectrochemical reaction and high in signal measurement precision, solves the problem that the existing reaction tank cannot measure electrochemical signals and spectrum signals at the same time, and fills the blank of products at home and abroad.
(3) Whether the technical scheme of the utility model solves the technical problems that people want to solve all the time but fail to obtain success all the time is solved:
the technical scheme of the utility model solves the testing difficulty in the field of in-situ electrochemical spectrum, and provides a solution for measuring electrochemical signals and spectrum signals simultaneously when photoelectrochemical reaction occurs to a thin film photoelectrode for researchers.
Drawings
FIG. 1 is a block diagram of a photoelectrochemical in situ reaction tank provided by an embodiment of the utility model.
Fig. 2 is a side view of a photoelectrochemistry in-situ reaction tank structure and a schematic diagram of a working electrode installation mode according to an embodiment of the utility model.
Fig. 3 is a schematic diagram of an application of the photoelectrochemical reaction cell provided by the embodiment of the utility model in an in-situ electrochemical spectrum experiment.
In the figure: 1. a base; 2. a main body; 3. enamel; 4. a reference electrode cell; 5. a counter electrode groove; 6. an electrolyte chamber; 7. an O-ring; 8. a working electrode; 9. a silica gel pad; 10. a metal gasket.
Detailed Description
The present utility model will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
As shown in fig. 1, the utility model provides a photoelectrochemical in-situ reaction cell suitable for a thin film photoelectrode, which comprises a base 1 and an in-situ cell main body 2 fixed on the base 1; the inside of the in-situ cell main body 2 is a cavity, a reference electrode groove 4 and a counter electrode groove 5 which are communicated with the cavity are formed in the upper portion of the in-situ cell main body 2, enamel 3 which is communicated with the cavity is formed on one side of the in-situ cell main body 2, and an electrolyte cavity 6 is formed between the enamel 3 and the cavity.
The reference electrode groove 4 and the counter electrode groove 5 are threaded slots with the inner diameter of 8mm and the outer diameter of 14 mm; electrolyte is injected into the electrolyte cavity 6 through the upper reference electrode tank or the counter electrode tank; the in-situ cell base 1 and the main body 2 are made of quartz glass.
As shown in fig. 2, the photoelectrochemical in-situ reaction tank suitable for the film photoelectrode provided by the utility model is characterized in that a working electrode 8 is further arranged on one side of an in-situ tank main body 2 provided with enamel 3, the enamel 3 is a round enamel 3 with the diameter of 23mm and the thickness of 6mm and is used for fixing a working electrode 6, and the working electrode 6 is fixedly connected with the enamel 3 through an O-shaped gasket 7, a silica gel gasket 9, a metal gasket 10 and a clip; the working electrode 6 is a semiconductor thin film and a metal nanostructured multilayer thin film grown on conductive glass.
As shown in fig. 3, the incident light is irradiated onto the working electrode 6 from the back surface, and the photoelectrochemical reaction of the working electrode 6 occurs on the side contacting the electrolyte, and the reaction area is equal to the area of a circular hole having a diameter of 8mm located on the side surface of the cell body 2 in situ.
The structure of the reference electrode tank 4 and the counter electrode tank 5 is shown in the figure, the reference electrode tank 4 and the counter electrode tank 5 are internally provided with a reference electrode and a counter electrode, the reference electrode adopts a silver/silver chloride electrode, the counter electrode adopts a platinum wire coil, and the reference electrode and the counter electrode are fixed in the reference electrode tank 4 and the counter electrode tank 5 through polytetrafluoroethylene sealing plugs and O-shaped rings.
The working principle of the utility model is as follows: when the device is specifically used, the working electrode 8 is a semiconductor film and a metal nano-structured multilayer film which are grown on conductive glass, and electrolyte deoxidized by high-purity argon is injected into the reaction tank through the electrode groove 4 or 5 at the upper part of the reaction tank; the reference electrode and the counter electrode are respectively fixed in a reference electrode groove 4 and a counter electrode groove 5 of the reaction tank through polytetrafluoroethylene plugs and O-shaped rings, the heights of the reference electrode and the counter electrode are adjusted, and the distance between the reference electrode and the working electrode 8 is shortened. And (3) connecting the experimental device and equipment, and starting an electrochemical workstation, a light source and a monochromator, or opening the electrochemical workstation and a fluorescence spectrometer or an ultraviolet-visible absorption spectrometer. The position of the reaction tank and the irradiation angle of incident light are adjusted, so that the incident light irradiates on the working electrode 8 vertically or at a certain angle, and the working electrode is coupled into the light path system; the three electrodes and the electrochemical workstation are connected, the reaction tank is fixed in the sample cabin by using an adhesive tape, so that the reaction tank is kept at a fixed position, the coupling and the test of an optical path system are prevented from being influenced by small changes of the position of the reaction tank in the test process, and the sample cabin door is closed; the incident light intensity, wavelength and electrochemical test conditions of the working electrode are adjusted, the working electrode 8 generates photoelectrochemical reaction at one side contacting the electrolyte, and test data such as current-potential, impedance or spectrum under dark condition and illumination condition are collected respectively.
The in-situ cell is suitable for photoelectric conversion experiments, impedance tests under illumination conditions or in-situ electrochemical spectrum experiments of the film working electrode in any pH electrolyte, can obtain electrochemical signals and spectrum signals at any stage of reaction, and can obtain electrochemical signals and spectrum signals at any electrochemical potential, and has strong universality.
In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The foregoing is merely illustrative of specific embodiments of the present utility model, and the scope of the utility model is not limited thereto, but any modifications, equivalents, improvements and alternatives falling within the spirit and principles of the present utility model will be apparent to those skilled in the art within the scope of the present utility model.
Claims (8)
1. A photoelectrochemical in situ reaction cell suitable for use in a thin film photoelectrode, comprising: a base and an in-situ cell main body fixed on the base; the inside cavity that is of normal position pond main part, set up reference electrode groove and the counter electrode groove with cavity intercommunication in normal position pond main part upper portion, set up the enamel with cavity intercommunication in normal position pond main part one side, set up electrolyte chamber between enamel and cavity, still be provided with working electrode in one side that the normal position pond main part set up the enamel.
2. The photoelectrochemical cell for use in a thin film photoelectrode of claim 1 wherein said enamel is a circular enamel of diameter 23mm and thickness 6mm for securing a working electrode, the working electrode being secured to the enamel by O-rings, silicone gaskets, metal gaskets and clamps.
3. The photoelectrochemical in situ reaction cell suitable for use in a thin film photoelectrode of claim 1, wherein said working electrode is a semiconductor thin film and a metallic nanostructured multilayer thin film grown on conductive glass.
4. The photoelectrochemical in-situ reaction cell for a thin film photoelectrode of claim 1, wherein the reference electrode cell and the counter electrode cell are threaded slots with an inner diameter of 8mm and an outer diameter of 14mm, and a reference electrode and a counter electrode are arranged in the reference electrode cell and the counter electrode cell.
5. The photoelectrochemical in-situ reaction cell for a thin film photoelectrode of claim 1 wherein said reference electrode is a silver/silver chloride electrode and said counter electrode is a platinum wire coil, the reference electrode and counter electrode being secured in the reference electrode cell and counter electrode cell by polytetrafluoroethylene sealing plugs.
6. The photoelectrochemical in-situ reaction cell for thin film photoelectrodes of claim 1 wherein incident light impinges on the working electrode from the back side, the working electrode undergoing photoelectrochemical reaction on the side contacting the electrolyte with an area equal to the area of a circular hole of 8mm diameter in the side of the in-situ cell body.
7. The photoelectrochemical in situ reaction cell for a thin film photoelectrode of claim 1, wherein said electrolyte is injected into the electrolyte chamber through an upper reference electrode cell or counter electrode cell.
8. The photoelectrochemical in situ reaction cell of claim 1, wherein the in situ cell base and body are quartz glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321304924.1U CN220154336U (en) | 2023-05-25 | 2023-05-25 | Photoelectrochemistry in-situ reaction tank suitable for thin film photoelectrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321304924.1U CN220154336U (en) | 2023-05-25 | 2023-05-25 | Photoelectrochemistry in-situ reaction tank suitable for thin film photoelectrode |
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| Publication Number | Publication Date |
|---|---|
| CN220154336U true CN220154336U (en) | 2023-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321304924.1U Active CN220154336U (en) | 2023-05-25 | 2023-05-25 | Photoelectrochemistry in-situ reaction tank suitable for thin film photoelectrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220154336U (en) |
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2023
- 2023-05-25 CN CN202321304924.1U patent/CN220154336U/en active Active
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