CN112359372A - Ozone electrolytic tank - Google Patents
Ozone electrolytic tank Download PDFInfo
- Publication number
- CN112359372A CN112359372A CN202011464207.6A CN202011464207A CN112359372A CN 112359372 A CN112359372 A CN 112359372A CN 202011464207 A CN202011464207 A CN 202011464207A CN 112359372 A CN112359372 A CN 112359372A
- Authority
- CN
- China
- Prior art keywords
- electrode
- electrolyte membrane
- water
- membrane
- insulating frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/13—Ozone
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B13/00—Diaphragms; Spacing elements
- C25B13/02—Diaphragms; Spacing elements characterised by shape or form
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The invention discloses an ozone electrolytic cell, which comprises an insulating frame, a first electrode, a second electrode, an electrode supporting device and an electrolyte membrane, wherein the insulating frame is arranged on the insulating frame; the electrolyte membrane is supported by the electrode supporting device to be waved, and a water-gas quick channel is formed between the electrolyte membrane and the electrode supporting device. The invention inhibits the air blocking effect and the heat accumulation in the electrolytic process by arranging the water-gas quick channel and strengthening the diffusion by water flow, improves the electrolytic efficiency and is suitable for preparing ozone water on line; the invention prolongs the service life of the device by selecting corrosion-resistant materials as the materials of all parts and switching the reverse pole at regular time when the electrolytic bath runs.
Description
Technical Field
The invention relates to the technical field of ozone water preparation, and particularly belongs to an ozone electrolytic cell for preparing ozone water on line.
Background
Ozone is one of the strongest oxidants in the nature, has strong oxidizability, and is dissolved in water to obtain ozone water. Nitrate ions are not additionally introduced into ozone water generated by electrolyzed water, and the ozone water has wide prospects in the fields of disinfection, food, medical treatment and electronics. At present, a better electrode material for generating ozone by electrolyzing water is conductive diamond (BDD), the material is made of diamond doped with boron, and the conductive diamond electrode has the characteristics of wide electrochemical potential window, low background current, high ozone corrosion resistance, low adsorption and the like, and can improve the electrolysis efficiency of preparing ozone by electrolyzing water.
One of the methods for obtaining ozone water or gas by artificial electrolysis is as follows: the solid electrolyte membrane is clamped between the two conductive diamond sheet electrodes, the anode and the cathode of a power supply are respectively connected with the two conductive diamond electrodes, and water is electrolyzed by the electrodes to obtain ozone or ozone water with higher concentration. The solid electrolyte membrane is provided for the purpose of selectively allowing only ions to permeate therethrough while reducing the resistance of an electric circuit, thereby improving the electrolysis efficiency. The working current of the structure is large, the resistance of an electric loop is required to be small enough, the diamond electrode and the solid electrolyte membrane are tightly attached, so that large current is introduced into an electrolytic working medium, water flow cannot enter a gap between the diamond sheet and the solid electrolyte membrane after the diamond electrode and the solid electrolyte membrane are tightly attached, ozone generated by electrolysis cannot be timely diffused, gas blockage effect is caused by the gas which cannot be diffused, continuous electrolysis is hindered, on the other hand, heat generated by electrolysis can be accumulated, and the solubility of ozone in water is further reduced, so that the effect is intensified. The conventional way of preparing ozone water is carried out off-line, and by providing enough electrolysis time, ozone is fully dissolved and diffused, and heat is fully dissipated, so that the concentration of ozone in water is accumulated and reaches a proper level. For the on-line ozone water production, the structure comprises multiple conflicting tradeoffs of flow rate and ozone concentration, high-current working condition and gas diffusion, structure compactness and heat diffusion. One of the solutions to solve the above contradictions is to open and notch the holes in the diamond sheet, but because of the thermal expansion coefficient, most of the diamond sheet base materials are silicon wafers or other semiconductor materials at present, the silicon wafers are difficult to be processed by taking the holes and notching, the finished product has low qualification rate and is not suitable for industrial mass production, and the diamond sheet after taking the holes and notching is easy to crack under the high-current working condition.
Disclosure of Invention
In order to solve the contradiction between the tight adhesion of the conductive diamond electrode and the solid electrolyte membrane to reduce the resistance of an electric circuit and the quick diffusion of ozone generated by electrolysis, the invention arranges an electrode supporting device along the water flow direction between the diamond electrode layer and the solid electrolyte membrane, and forms a water-vapor channel between the diamond electrode layer and the solid electrolyte membrane, so that ozone water and ozone gas quickly pass through the surface of the electrode along the water-vapor channel, thereby improving the electrolysis efficiency of preparing ozone water.
To achieve the above object, the present invention provides an ozone cell comprising: the device comprises an insulating frame, a first electrode, a second electrode, a first electrode supporting device, a second electrode supporting device and an electrolyte membrane;
the first electrode comprises a first electrode metal sheet and a first diamond electrode layer, and the second electrode comprises a second electrode metal sheet and a second diamond electrode layer; the first diamond electrode layer and the second diamond electrode layer are both made of conductive diamond materials;
the first electrode metal sheet, the first diamond electrode layer, the first electrode supporting device, the electrolyte membrane, the second electrode supporting device, the second diamond electrode layer and the second electrode metal sheet are sequentially arranged from top to bottom;
the first diamond electrode layer, the first electrode supporting device, the electrolyte membrane, the second electrode supporting device and the second diamond electrode layer are all positioned in the insulating frame; the first electrode metal sheet, the insulating frame and the second electrode metal sheet are sequentially and tightly attached to form a pressure-resistant cavity which can bear the pressure of water flowing through;
a water inlet and a water outlet are arranged on two sides of the insulating frame, and a water inlet cavity and a water outlet cavity which are respectively communicated with the water inlet and the water outlet are formed in the insulating frame; the water inlet cavity is positioned between the electrolyte membrane and the water inlet, and the water outlet cavity is positioned between the electrolyte membrane and the water outlet;
the first electrode supporting device comprises a plurality of first electrode supporting strips, each first electrode supporting strip is arranged along the water flow direction, and distance intervals are formed among the first electrode supporting strips; the second electrode supporting device comprises a plurality of second electrode supporting strips, each second electrode supporting strip is arranged along the water flow direction, and distance intervals are formed among the second electrode supporting strips;
the electrolyte membrane is supported by the first electrode supporting device and the second electrode supporting device to be wavy, and the electrolyte membrane is tightly attached to the first electrode or the second electrode at the wavy wave crest or wave trough; a water vapor fast channel allowing water to pass is formed between the first support device and the surface of the electrolyte membrane; a water vapor fast channel allowing water to pass is formed between the second supporting device and the surface of the electrolyte membrane; the water-air quick channel is communicated with the water inlet cavity and the water outlet cavity.
In the electrolytic process, only the vicinity of the anode can generate ozone, but the ozone can passivate the surface of the electrode along with the continuation of the electrolysis to cause the performance of the electrode to decline, and on the other hand, the surface of the electrode is easy to generate calcium carbonate deposition.
Preferably, the first electrode supporting device and the second electrode supporting device are arranged in a staggered manner, so that the thickness distribution of the electrolyte membrane in the ozone electrolytic cell is more uniform on the basis of maintaining the close contact between the electrolyte membrane and the electrode surface, the internal current distribution of the ozone electrolytic cell is more uniform during the operation of the ozone electrolytic cell, and the service life of the electrolyte membrane is prolonged.
Preferably, the material of the first electrode supporting device and the material of the second electrode supporting device are the same as or similar to the material of the electrolyte membrane. The purpose is to increase the total contact area between the material and the electrode surface, reduce the resistance of the electric circuit and improve the electrolysis efficiency.
Preferably, the first electrode supporting device and the second electrode supporting device are made of insulator materials or metal materials.
Preferably, the insulating frame is made of one of teflon, silicon dioxide or aluminum oxide, and may be made of other insulator materials with good mechanical strength and corrosion resistance.
Preferably, the first electrode metal sheet and the second electrode metal sheet are made of one of titanium alloy, titanium, platinum, gold, nickel, palladium, platinum-ruthenium alloy, or stainless steel, or other corrosion-resistant and low-resistivity metal materials.
Preferably, the electrolyte membrane is one of a perfluorosulfonic acid membrane, a perfluorosulfonic acid ionomer membrane and a non-perfluorosulfonic acid ionomer membrane.
The non-perfluorinated sulfonic acid ionic polymer membrane can be one of a cation resin membrane, an anion resin membrane and a perfluorinated cation exchange membrane, and can also be other corrosion-resistant solid electrolyte membranes.
Compared with the prior art, the invention has the following beneficial effects:
1. on the basis of using an electrolyte membrane to isolate electrolyte solution near a first electrode and a second electrode and maintaining the resistance between the first electrode and the second electrode to be sufficiently small, the invention is provided with a water-gas quick channel to quickly dissolve and flush ozone generated on the electrodes by water flow, thereby avoiding the occurrence of air blocking effect, solving the contradiction between large working current and gas diffusion, and on the other hand, assisting heat dissipation through the water-gas quick channel to solve the contradiction between heat dissipation and close fit of a maintaining structure, thereby improving the electrolysis efficiency of ozone and realizing the on-line electrolytic preparation of ozone water.
2. On the basis that the material of each structural component is selected to be a corrosion-resistant material, the electrode is arranged in a way that the two electrodes are identical and the electrodes are switched in a circulating mode during operation, so that the performance of the electrodes can be better maintained, and the service life of the electrodes can be prolonged.
3. The electrolyte membrane, the electrode supporting strip, the first diamond electrode layer, the second diamond electrode layer and other parts with lower mechanical strength are all strip-shaped or layered, and are easy to machine and form, and the finished product rate is high, so that the production cost is reduced, and the large-scale production is facilitated.
Drawings
FIG. 1 is a schematic external view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic of the layered structure of the present invention;
FIG. 4 is a schematic view of a longitudinal cross-section of the rapid water vapor passage of the present invention;
FIG. 5 is a schematic diagram of the transverse cross-sectional structure of the present invention
In the figure: 1. a first electrode metal sheet; 2. an insulating frame; 3. a water inlet; 4. a water outlet; 5. a first diamond electrode layer; 6. an electrolyte membrane; 7. a second diamond electrode layer; 8. a first electrode support bar; 9. a water inlet cavity; 10. a water outlet cavity; 11. a water-gas fast channel; 12. a second electrode metal sheet; 13. and a second electrode support strip.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
First embodiment
Fig. 1 shows the external structure of the electrolytic cell of the present invention, the first electrode metal sheet 1, the insulating frame 2, and the second electrode metal sheet 12 are fastened by bolts to form an electrolytic cell cavity capable of withstanding water pressure, the insulating frame 2 is provided with a water inlet 3 and a water outlet 4, and the water flow direction in the electrolytic cell is the direction from the water inlet 3 to the water outlet 4.
Fig. 2 and 3 show an internal structure and a layered structure of an electrolytic cell of the present invention, including an insulating frame 2, a first electrode, a second electrode, a first electrode supporting means, a second electrode supporting means, an electrolyte membrane 6; the first electrode supporting device comprises a plurality of first electrode supporting strips 8; the second electrode supporting device comprises a plurality of second electrode supporting strips 13; each first electrode supporting strip 8 is arranged along the water flow direction, and a distance interval is formed between every two first electrode supporting strips; each second electrode supporting strip 13 is arranged along the water flow direction, and a distance interval is formed between every two second electrode supporting strips;
the first electrode comprises a first electrode metal sheet 1 and a first diamond electrode layer 5, and the second electrode comprises a second electrode metal sheet 12 and a second diamond electrode layer 7; the first diamond electrode layer 5 and the second diamond electrode layer 7 are both made of conductive diamond materials;
the first electrode metal sheet 1, the first diamond electrode layer 5, the first electrode supporting device, the electrolyte membrane 6, the second electrode supporting device, the second diamond electrode layer 7 and the second electrode metal sheet 12 are sequentially arranged from top to bottom; the first diamond electrode layer 5, the first electrode supporting device, the electrolyte membrane 6, the second electrode supporting device and the second diamond electrode layer 7 are all positioned in the insulating frame 2;
the inside of the insulating frame 2 is provided with a water inlet cavity 9 and a water outlet cavity 10 which are respectively communicated with the water inlet 3 and the water outlet 4; the water inlet cavity 9 is positioned between the electrolyte membrane 6 and the water inlet 3, and the water outlet cavity 10 is positioned between the electrolyte membrane 6 and the water outlet 4;
the electrolyte membrane 6 is supported by the first electrode supporting device and the second electrode supporting device to be wavy, and the electrolyte membrane 6 is tightly attached to the first electrode or the second electrode at the wavy wave crest or wave trough; a water vapor fast channel 11 allowing water to pass is formed between the first electrode supporting strip 8 and the electrolyte membrane 6; a water vapor fast channel 11 allowing water to pass is formed between the second electrode supporting strip 13 and the electrolyte membrane 6; the water-air fast channel 11 is communicated with the water inlet cavity 9 and the water outlet cavity 10.
Fig. 5 shows a schematic view of the transverse cross-sectional structure of the present invention. In this embodiment, the first electrode support means and the second electrode support means are arranged offset.
When the electrode is in operation, the first electrode metal sheet 1 and the second electrode metal sheet 12 are respectively connected with the positive pole and the negative pole of a power supply to be used as the positive pole and the negative pole, hydrogen is separated out at the negative pole during electrification and electrolysis, ozone and oxygen are separated out at the positive pole, and ozone generated on the surface of the electrode layer can be partially dissolved in water. Fig. 4 shows a schematic longitudinal sectional structure of the water gas fast channel 11 on one side of the first electrode supporting strip 8. The purified water flow reaches the water inlet cavity 9 from the water inlet 3, partially dissolves and carries out ozone generated on the electrode and washes out undissolved gas through the water-gas quick channel 11, reaches the water outlet cavity 10, and then leaves the electrolytic bath from the water outlet 4;
when the first electrode metal sheet 1 is connected with the positive electrode of a power supply and the second electrode metal sheet 12 is connected with the negative electrode of the power supply, current flows from the positive electrode of the power supply, the first electrode metal sheet 1, the first diamond electrode layer 5, the electrolyte membrane 6, the second diamond electrode layer 7, the second electrode metal sheet 12 to the negative electrode of the power supply to form a current loop, hydrogen is generated on the second diamond electrode layer 12 at the moment, and ozone and oxygen are generated on the first diamond electrode layer 1, or vice versa.
In the operation process, the first electrode and the second electrode are periodically and circularly inverted, so that the electrolysis efficiency is improved, and the service life of the electrodes is prolonged.
In this embodiment, the first electrode metal sheet 1 and the second electrode metal sheet 12 are made of titanium alloy; the insulating frame is made of polytetrafluoroethylene; the electrolyte membrane 6, the first electrode supporting strips 8 and the second electrode supporting strips 13 are made of the same materials and are made of perfluorinated sulfonic acid material Nafion-N117, the electrode supporting strips are made of the same membrane material as the electrolyte membrane 6, so that the total contact area of the material and the diamond electrode layer can be increased, the diffusion and discharge of ions in electrolyte solution on the surfaces of the electrodes are promoted, and the electrolysis efficiency is improved.
Second embodiment
The present embodiment differs from the first embodiment in that: the first electrode metal sheet 1 and the second electrode metal sheet 12 are both made of stainless steel; the electrolyte membrane 6, the first electrode supporting strip 8 and the second electrode supporting strip 13 are made of the same material, and are all perfluorinated cation exchange membrane materials Fumasep-F10120. Compared with the first embodiment, the present embodiment uses a lower cost of part of the material of the components, and can achieve similar electrolytic efficiency.
Third embodiment
The present embodiment differs from the first embodiment in that: the electrolyte membrane 6 is made of a perfluorinated cation exchange membrane material Fumasep-F10120, and the first electrode supporting strip 8 and the second electrode supporting strip 13 are made of perfluorinated sulfonic acid materials Nafion-N117. The scheme in this embodiment is a compromise scheme between the first embodiment and the second embodiment. The present embodiment can also achieve similar electrolytic efficiency, which shows that when the materials of the first electrode supporting strip 8 and the second electrode supporting strip 13 are not the same as the electrolyte membrane 6 but belong to the same class, the beneficial effects similar to those of the first and second embodiments can also be achieved.
Fourth embodiment
The present embodiment differs from the first embodiment in that: the first electrode supporting strip 8 and the second electrode supporting strip 13 are made of titanium alloy materials.
Fifth embodiment
The present embodiment differs from the first embodiment in that: the first electrode supporting strip 8 and the second electrode supporting strip 13 are made of carbon fiber materials.
The fourth and fifth embodiments of the present invention show that the beneficial effects of the present invention can be achieved when the material of the supporting strip is metal, carbon fiber, etc. which is corrosion resistant and can conduct electricity but is not an ionic conductor.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. An ozone cell, comprising: the device comprises an insulating frame, a first electrode, a second electrode, an electrode supporting device and an electrolyte membrane;
the insulating frame and the electrolyte membrane are disposed between the first electrode and the second electrode, the electrolyte membrane being located inside the insulating frame; a water inlet and a water outlet are arranged on two sides of the insulating frame, and a water inlet cavity and a water outlet cavity which are respectively communicated with the water inlet and the water outlet are formed in the insulating frame; electrode supporting devices are arranged among the first electrode, the electrolyte membrane and the second electrode; the electrode supporting device comprises a plurality of electrode supporting strips which extend along the water flow direction;
the first electrode comprises a first electrode metal sheet and a first diamond electrode layer, and the second electrode comprises a second electrode metal sheet and a second diamond electrode layer; the first diamond electrode layer is provided on a face of the first electrode metal sheet facing the electrolyte membrane; the second diamond electrode layer is provided on a side of the second electrode metal sheet facing the electrolyte membrane;
a water vapor fast channel allowing water to pass is arranged between the electrolyte membrane and the electrode supporting device; the water-air quick channel is communicated with the water inlet cavity and the water outlet cavity.
2. The ozone cell of claim 1, wherein the electrode support means are staggered on different surfaces of the electrolyte membrane.
3. The ozone cell of claim 1, wherein the electrode support means are all of the same material or of the same class of material as the electrolyte membrane.
4. The ozone cell of claim 1, wherein the electrode support means is made of an insulator material or a metal material.
5. The ozone cell of claim 1, wherein the insulating frame is made of one of polytetrafluoroethylene, silica or alumina.
6. The ozone cell of claim 1, wherein the first electrode metal sheet and the second electrode metal sheet are made of one of titanium alloy, titanium, platinum, gold, nickel, palladium, platinum-ruthenium alloy, or stainless steel.
7. The ozone cell of claim 1, wherein the electrolyte membrane is one of a perfluorosulfonic acid membrane, a perfluorosulfonic acid ionomer membrane, and a non-perfluorosulfonic acid ionomer membrane.
8. The ozone cell of claim 7, wherein the non-perfluorinated sulfonic acid ionomer membrane is one of a cation resin membrane, an anion resin membrane, and a perfluorinated cation exchange membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011464207.6A CN112359372A (en) | 2020-12-15 | 2020-12-15 | Ozone electrolytic tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011464207.6A CN112359372A (en) | 2020-12-15 | 2020-12-15 | Ozone electrolytic tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112359372A true CN112359372A (en) | 2021-02-12 |
Family
ID=74536148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011464207.6A Pending CN112359372A (en) | 2020-12-15 | 2020-12-15 | Ozone electrolytic tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112359372A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113897622A (en) * | 2021-10-27 | 2022-01-07 | 广州德百顺蓝钻科技有限公司 | Electrolytic water assembly and device |
| CN114314769A (en) * | 2022-01-20 | 2022-04-12 | 山东欣远新材料科技有限公司 | Electrolytic module based on BDD electrode and water treatment system |
-
2020
- 2020-12-15 CN CN202011464207.6A patent/CN112359372A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113897622A (en) * | 2021-10-27 | 2022-01-07 | 广州德百顺蓝钻科技有限公司 | Electrolytic water assembly and device |
| CN114314769A (en) * | 2022-01-20 | 2022-04-12 | 山东欣远新材料科技有限公司 | Electrolytic module based on BDD electrode and water treatment system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103806014B (en) | A kind of proton exchange membrane water electrolyzer device | |
| Li et al. | Long-term contamination effect of iron ions on cell performance degradation of proton exchange membrane water electrolyser | |
| CN112359372A (en) | Ozone electrolytic tank | |
| CN108611655B (en) | Electrode unit and electrode composed of same | |
| JP2011117052A5 (en) | ||
| CN113373462A (en) | For electrochemical reduction of CO2Membrane type liquid flow electrolytic cell and testing process | |
| TW200409834A (en) | Bipolar, zero-gap type electrolytic cell | |
| Shi et al. | Cu/Ni composite electrodes for increased anodic coulombic efficiency and electrode operation time in a thermally regenerative ammonia-based battery for converting low-grade waste heat into electricity | |
| CN1966777A (en) | Water electrolysis device with proton exchange membrane | |
| KR20110124415A (en) | Pem water electrolyser using 3-dimension mesh | |
| Li et al. | The effect of Fe3+ contamination in feed water on proton exchange membrane electrolyzer performance | |
| CN213835556U (en) | Ozone electrolytic tank | |
| CN115976553A (en) | Water electrolysis hydrogen production device with turbulence strengthening module and method | |
| JP3080971B2 (en) | Electrode structure for ozone production and method for producing the same | |
| CN208815125U (en) | A kind of fluorination electrolytic cell | |
| CN213834682U (en) | Ozone water online preparation unit | |
| CN103026538A (en) | Separator material for fuel cell, and separator for fuel cell and fuel cell stack each comprising same | |
| JPS5943885A (en) | Electrode device for gas generation electrolytic cell and vertical plate electrode therefor | |
| Nishimura et al. | Solid polymer electrolyte CO2 reduction | |
| CN213835562U (en) | Multi-layer overlapped ozone water online preparation unit | |
| JP7170061B2 (en) | Hydrogen production method | |
| JP2023506606A (en) | Direct-coupler for hydrogen production from concentrated sunlight | |
| CN215713424U (en) | Integrally assembled bipolar diaphragm-free electrolysis device | |
| CN219508035U (en) | Graphite polar plate, alkaline electrolytic tank and electrolytic water hydrogen production equipment | |
| CN219280053U (en) | Multipole type electrolytic device for producing hydrogen peroxide and hydrogen by electrolyzing ammonium bisulfate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |