CN109576731B - Hydrogen production device and method by directly electrolyzing water with liquid metal magnetic fluid - Google Patents
Hydrogen production device and method by directly electrolyzing water with liquid metal magnetic fluid Download PDFInfo
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- CN109576731B CN109576731B CN201910041921.5A CN201910041921A CN109576731B CN 109576731 B CN109576731 B CN 109576731B CN 201910041921 A CN201910041921 A CN 201910041921A CN 109576731 B CN109576731 B CN 109576731B
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- 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
- C25B1/02—Hydrogen or oxygen
- C25B1/04—Hydrogen or oxygen by electrolysis of water
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- 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
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/60—Constructional parts of cells
- C25B9/65—Means for supplying current; Electrode connections; Electric inter-cell connections
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K44/00—Machines in which the dynamo-electric interaction between a plasma or flow of conductive liquid or of fluid-borne conductive or magnetic particles and a coil system or magnetic field converts energy of mass flow into electrical energy or vice versa
- H02K44/08—Magnetohydrodynamic [MHD] generators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
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Abstract
The present disclosure provides a device and method for producing hydrogen by directly electrolyzing water with liquid metal magnetic fluid. Wherein, a liquid metal magnetic fluid direct electrolysis water hydrogen plant includes: a container; an insulating plate provided in the container for dividing the container into a first-layer container and a second-layer container; the first layer container is an electrolytic tank, and the second layer container is a sealing chamber; a liquid metal conduit that is a closed-loop sealed conduit and passes through the second-tier container; the liquid metal pipeline is internally provided with liquid metal; the permanent magnets are arranged in the second-layer container, comprise a permanent magnet N pole and a permanent magnet S pole and are respectively arranged at two sides of the liquid metal pipeline; one end of the pair of electrodes is embedded into the side wall of the liquid metal pipeline to be in direct contact with the liquid metal, and the other end of the pair of electrodes passes through the insulating plate; the electrodes are used for transmitting electric energy and providing electric energy for the water electrolysis process. The device of this disclosure simple structure is compact, and the modularization of being convenient for is arranged, convenient washing maintenance.
Description
Technical Field
The present disclosure relates to the field of ocean energy efficient utilization technology and seawater electrolysis hydrogen production, and in particular relates to a device and a method for directly electrolyzing water to produce hydrogen by using liquid metal magnetic fluid.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
Ocean reserves the most abundant resources in the world, and the development and utilization of ocean energy have great significance for reducing pollution and greenhouse gas emission. Tidal current energy, wave energy, tidal energy, and the like are common forms of ocean energy. The ocean power generation device is arranged at a place far away from the coastline, and the ocean power generation device is high in cost and inconvenient to use and maintain due to the fact that an ocean cable is required to be laid or an ocean charging platform is arranged. Hydrogen energy is considered as the most rational energy carrier due to its advantages of cleanliness, high efficiency, safety, storability and transportation. Seawater is a main source of hydrogen energy, and the hydrogen production by the electrolysis of seawater has wide prospect. The existing hydrogen production modes mainly comprise fossil fuel hydrogen production, water electrolysis hydrogen production, biomass hydrogen production, solar energy photolysis hydrogen production and the like. The problems of serious pollution and unsustainable pollution are not fundamentally solved, the biomass hydrogen production and the solar photolysis hydrogen production are both in the research and development stage, and the water electrolysis hydrogen production is simple in operation, mature in technology, wide in raw materials and high in purity of the prepared hydrogen and oxygen. However, a great amount of electric energy is consumed in the electrolysis of water, and renewable energy sources, especially ocean energy hydrogen production, are the development trend in the future.
The utilization of the surplus power of renewable energy sources such as 'waste water, waste wind, waste light' and the like for preparing hydrogen is a new idea of hydrogen energy development in recent years. A set of power supply system which comprehensively combines wind power generation and hydrogen energy storage and power generation is built in the Utezula island in Norway. The world maximum wind power hydrogen production comprehensive utilization demonstration project built in the Qing county of Hebei province in 2016 is all grid-connected to generate electricity. However, the existing renewable energy source water electrolysis hydrogen production technology needs to collect and convert electric energy into usable voltage and then load the usable voltage to the anode and the cathode of the electrolytic tank, and the process increases the complexity of the device and causes energy loss. The liquid metal magnetohydrodynamic power generation is performed by taking liquid metal fluid with low melting point and high conductivity as working medium. When the liquid metal in the power generation channel flows through the magnetic field area, the magnetic induction lines are cut, and induced electromotive force is generated on the electrodes at the two sides. The liquid metal magnetohydrodynamic power generation has no mechanical energy conversion link, can replace a rotating motor, and is applied to ocean wave energy direct power generation in recent years by the American society of scientific application and research, the university of tokyo industry, and the national academy of sciences of China. However, the inventor finds that the liquid metal magnetofluid power generation has the characteristics of large current and small voltage, and can output directly available electric energy only through a complex power conversion system, if the liquid metal magnetofluid technology is directly applied to water electrolysis hydrogen production, the difficult problem can be solved, and the current liquid metal magnetofluid technology cannot be directly applied to water electrolysis hydrogen production.
Disclosure of Invention
According to one aspect of one or more embodiments of the present disclosure, there is provided a liquid metal magnetic fluid direct water electrolysis hydrogen production device, which is simple and compact in structure, convenient for modular arrangement, and convenient for cleaning and maintenance.
The utility model discloses a liquid metal magnetic fluid direct electrolysis water hydrogen plant, includes:
a container;
an insulating plate provided in the container for dividing the container into a first-layer container and a second-layer container; the first layer container is an electrolytic tank, and the second layer container is a sealing chamber;
a liquid metal conduit that is a closed-loop sealed conduit and passes through the second-tier container; the liquid metal pipeline is internally provided with liquid metal;
the permanent magnets are arranged in the second-layer container, comprise a permanent magnet N pole and a permanent magnet S pole and are respectively arranged at two sides of the liquid metal pipeline;
one end of the pair of electrodes is embedded into the side wall of the liquid metal pipeline to be in direct contact with the liquid metal, and the other end of the pair of electrodes passes through the insulating plate; the electrodes are used for transmitting electric energy and providing electric energy for the water electrolysis process.
In one or more embodiments, the electrolytic cell includes a cathode chamber and an anode chamber with a cathode-anode chamber diaphragm disposed therebetween.
In one or more embodiments, the electrolyzer bottom section is provided with a water inlet and a water outlet.
In one or more embodiments, the electrolyzer top region is provided with a cathode chamber vent in communication with the cathode chamber.
In one or more embodiments, the electrolyzer top region is provided with an anode chamber vent in communication with the anode chamber.
In one or more embodiments, a one-way valve is also disposed within the liquid metal conduit.
In one or more embodiments, the liquid metal pipe is further connected to a driving mechanism, and the driving mechanism is used for driving the liquid metal to flow unidirectionally in the liquid metal pipe.
In one or more embodiments, an electrolyte is disposed within the electrolytic cell, the electrolyte being input to the electrolytic cell from a water inlet.
According to another aspect of one or more embodiments of the present disclosure, a hydrogen production method of a liquid metal magnetic fluid direct water electrolysis hydrogen production device is provided, which breaks through the limitation of the geographic position of a marine energy power generation device, effectively realizes direct hydrogen production from seawater, expands the source of hydrogen energy, and provides a new scheme for efficient utilization of marine energy.
The hydrogen production method based on the liquid metal magnetic fluid direct water electrolysis hydrogen production device comprises the following steps:
the liquid metal flows unidirectionally in the liquid metal pipeline under the action of external force, when passing through the magnetic field generated by the N pole and the S pole of the permanent magnet, cuts magnetic force lines, generates induced electromotive force between a pair of electrodes, and electric energy is led out to an electrolytic tank through the pair of electrodes, and the electrolytic tank utilizes the electric energy to electrolyze electrolyte.
In one or more embodiments, hydrogen gas is evolved in the cathode chamber of the electrolyzer, is vented through the cathode vent and collected, and the remaining product is vented through the anode vent and water outlet.
The beneficial effects of the present disclosure are:
(1) The liquid metal magnetic fluid direct water electrolysis hydrogen production device has the advantages of simple structure, good electric energy characteristic matching, sufficient hydrogen production raw materials, convenience in storage and the like, the whole device is compact in structure, convenient in modularized arrangement, convenient in cleaning and maintenance, and free of complex circuit connection, the difficult problems of power conversion and electric energy transmission are solved, and a new scheme is provided for solving the problem of utilization of the renewable energy power generation device.
(2) The hydrogen production method of the liquid metal magnetic fluid direct water electrolysis hydrogen production device breaks through the limitation of the geographic position of the ocean energy power generation device, effectively realizes the direct hydrogen production of seawater, expands the source of hydrogen energy and provides a new scheme for the efficient utilization of ocean energy.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate and explain the exemplary embodiments of the disclosure and together with the description serve to explain the disclosure, and do not constitute an undue limitation on the disclosure.
Fig. 1 is a schematic structural diagram of a liquid metal magnetic fluid direct water electrolysis hydrogen production device according to an embodiment of the disclosure.
Fig. 2 is a flow chart of ocean energy liquid metal magnetic fluid direct electrolysis seawater according to an embodiment of the disclosure.
Wherein: the device comprises a 1-cathode chamber exhaust port, a 2-cathode chamber, a 3-water inlet, a 4-cathode, a 5-permanent magnet N pole, a 6-liquid metal pipeline, a 7-permanent magnet S pole, an 8-sealing chamber, a 9-anode, a 10-water outlet, 11-sea water, a 12-anode chamber and a 13-anode chamber exhaust port.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the present disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments in accordance with the present disclosure. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
Fig. 1 is a schematic structural diagram of a liquid metal magnetic fluid direct water electrolysis hydrogen production device according to an embodiment of the disclosure.
As shown in fig. 1, the main body of the liquid metal magnetic fluid direct water electrolysis hydrogen production device in this embodiment is a container. Wherein the container is a pressure resistant container.
An insulating plate is arranged in the container and is used for dividing the container into a first-layer container and a second-layer container; wherein the first layer container is an electrolytic tank, and the second layer container is a sealing chamber.
The sealed chamber is a sealed chamber of a liquid metal magnetohydrodynamic power generation unit, wherein the power generation unit comprises a liquid metal pipeline 6, a permanent magnet N pole 5, a permanent magnet S pole 7, a positive pole 9 and a negative pole 4, the liquid metal pipeline 6 is a rectangular section insulating pipe, penetrates through the sealed chamber 8 and is positioned between the permanent magnet N pole 5 and the permanent magnet S pole 7, and one ends of the positive pole 9 and the negative pole 4 are embedded into the side wall of the liquid metal pipeline and are in direct contact with liquid metal. When liquid metal flows unidirectionally in the liquid metal pipeline 6 under the action of external force and passes through the magnetic field generated by the permanent magnet N pole 5 and the permanent magnet S pole 7, magnetic force lines are cut, induced electromotive force is generated between the positive pole 9 and the negative pole 4, and electric energy is led out to an electrolytic tank through the positive pole 9 and the negative pole 4.
In a specific implementation, a one-way valve is further arranged in the liquid metal pipeline.
The liquid metal pipeline is internally connected with a driving mechanism which is used for driving the liquid metal to flow unidirectionally in the liquid metal pipeline.
When the method is applied to the direct seawater electrolysis of ocean energy liquid metal magnetic fluid to prepare hydrogen, the direct seawater electrolysis module of the liquid metal magnetic fluid is required to be used in combination with a reciprocating ocean energy capturing device, a seawater filtering treatment device, a hydrogen storage device and the like.
The reciprocating ocean energy capturing device converts renewable energy sources such as wave energy, tide energy and the like into mechanical energy to drive liquid metal in the closed pipeline to move. With the aid of a one-way valve and the like, liquid metal flows through the liquid metal magnetic fluid in a one-way at a relatively stable speed to directly electrolyze the water module, and relatively stable direct-current voltage is generated on the electrode to supply electric energy for the electrolytic tank. This ensures that the liquid metal remains flowing unidirectionally as it passes through the power generation unit, producing a relatively stable direct current on the electrodes.
In specific implementation, the reciprocating ocean energy capturing device can be realized by adopting any one structure of a plane connecting rod mechanism, a gear mechanism, a turbine mechanism, a ratchet mechanism, a pulley mechanism or a spring mechanism, and the structure is the existing structure.
It should be noted that other reciprocating machines may be used to provide the power source to drive the liquid metal to move.
Electrolyte is arranged in the electrolytic tank, and is input into the electrolytic tank through the water inlet.
In this example the electrolyte is selected as: the filtered seawater is used as the raw material for producing hydrogen by electrolyzing water, and when the filtered seawater is applied to other non-ocean power generation devices, the filtered seawater can be also used as the raw material for producing hydrogen by electrolyzing water by selecting aqueous solution.
The liquid metal is low-melting point alloy, metal or nano metal conductive solution, such as NaK78, U47, hg, gallium indium tin liquid alloy, nano silver solution and the like.
The electrolytic tank consists of a cathode 4, an anode 9, a cathode chamber 2, an anode chamber 12 and a cathode-anode chamber diaphragm, wherein a water inlet 3 and a water outlet 10 are arranged at the bottom area of the electrolytic tank, and a cathode chamber exhaust port 1 and an anode chamber exhaust port 13 are arranged at the top area. When the electrolytic tank is filled with seawater, a proper catalyst or auxiliary material is added, the voltage generated by the power generation unit is loaded on the cathode 4 and the anode 9 to perform electrochemical reaction, hydrogen is separated out on the cathode 4, the hydrogen is discharged and collected through the cathode exhaust port 1, and the rest of the product is discharged through the anode exhaust port 13 and the water outlet 10.
The positive electrode and the negative electrode are the positive electrode and the negative electrode of the electrolytic tank at the same time. A bulk good conductor with a small resistance is preferable as an electrode. Such as: titanium-based Ru, ir, ti, sn, co penta-mixed oxide is used as an anode, titanium alloy is used as a cathode, hydrogen is precipitated at the cathode, and Cl is precipitated at the anode 2 。
Such as: graphite as anode, pt as cathode, active carbon as catalyst for electrolysis of sea water, hydrogen gas is separated from the cathode, and CO is generated at the anode 2 。
The hydrogen generated by the electrolysis of the stored water is collected by adopting the hydrogen storage material, so that the hydrogen can be stored, transported and used conveniently.
Seawater 11 is filtered and then injected into an electrolytic tank, electrochemical reaction occurs, hydrogen is separated out on a cathode 4, the hydrogen is discharged through a cathode exhaust port 1 and is collected by a hydrogen storage device, and other products are collected or discharged through an anode exhaust port 13 and a water outlet 10.
The device adopts a modularized design, and when the device needs to be maintained, the liquid metal magnetic fluid direct electrolysis water module can be detached, so that the device is convenient to clean, maintain and replace, and meanwhile, the use of other devices is not affected.
According to the ocean energy liquid metal magnetic fluid direct water electrolysis hydrogen production system, the ocean energy power generation device is directly applied to the sea water electrolysis hydrogen production through the liquid metal magnetic fluid power generation technology, the ocean energy power generation device is beneficial to local conditions, the limitation of the geographic position of the ocean energy power generation device is broken through, the sea water direct hydrogen production is effectively realized, the source of hydrogen energy is expanded, and a new scheme is provided for the efficient utilization of ocean energy.
As shown in fig. 2, the hydrogen production method based on the liquid metal magnetic fluid direct water electrolysis hydrogen production device of the embodiment comprises the following steps:
the liquid metal flows unidirectionally in the liquid metal pipeline under the action of external force, when passing through the magnetic field generated by the N pole and the S pole of the permanent magnet, cuts magnetic force lines, generates induced electromotive force between a pair of electrodes, and electric energy is led out to an electrolytic tank through the pair of electrodes, and the electrolytic tank utilizes the electric energy to electrolyze electrolyte.
Wherein the external force device is in this example a marine energy capturing device.
The electrolyte, in this embodiment seawater, is filtered by a filter device and then fed into the electrolytic cell through a water inlet.
Wherein, the filter device can be a filter.
And hydrogen is separated out from the cathode chamber of the electrolytic tank, is discharged and collected through a cathode exhaust port, and the rest products are discharged through an anode exhaust port and a water outlet.
The method fully utilizes the characteristics of small voltage and large current of liquid metal magnetohydrodynamic power generation, and applies the technology to water electrolysis hydrogen production for the first time, wherein an electrolytic tank and a liquid metal magnetohydrodynamic power generation unit are respectively positioned in the upper layer and the lower layer of the same insulating compression-resistant container, unidirectional flow of liquid metal is controlled through a one-way valve to generate relatively stable direct current, the positive electrode and the negative electrode of the power generation unit are directly led out to serve as Yang Yinji for water electrolysis hydrogen production, and hydrogen is separated out from a cathode and collected. The device simple structure is compact, and the modularization of being convenient for is arranged, and convenient washing is maintained. The method is applied to the direct seawater electrolysis of ocean energy liquid metal magnetic fluid for hydrogen production, breaks through the limitation of the geographic position of the ocean energy power generation device, effectively realizes the direct seawater hydrogen production, expands the source of hydrogen energy, and provides a new scheme for the efficient utilization of ocean energy.
While the specific embodiments of the present disclosure have been described above with reference to the drawings, it should be understood that the present disclosure is not limited to the embodiments, and that various modifications and changes can be made by one skilled in the art without inventive effort on the basis of the technical solutions of the present disclosure while remaining within the scope of the present disclosure.
Claims (8)
1. A device for directly electrolyzing water to prepare hydrogen by liquid metal magnetic fluid, which is characterized by comprising:
a container;
an insulating plate provided in the container for dividing the container into a first-layer container and a second-layer container; the first layer container is an electrolytic tank, and the second layer container is a sealing chamber;
a liquid metal conduit that is a closed-loop sealed conduit and passes through the second-tier container; the liquid metal pipeline is internally provided with liquid metal; a one-way valve is arranged in the metal pipeline; the metal pipeline is connected with a driving mechanism, and the driving mechanism is used for driving the liquid metal to flow in a unidirectional manner in the liquid metal pipeline; the driving mechanism is a reciprocating ocean energy capturing device, converts wave energy and tidal energy into mechanical energy and drives liquid metal in the liquid metal pipeline to move;
the permanent magnets are arranged in the second-layer container, comprise a permanent magnet N pole and a permanent magnet S pole and are respectively arranged at two sides of the liquid metal pipeline;
one end of the pair of electrodes is embedded into the side wall of the liquid metal pipeline to be in direct contact with the liquid metal, and the other end of the pair of electrodes passes through the insulating plate; the electrode is used for transmitting electric energy and providing electric energy for the water electrolysis process;
the positive electrode and the negative electrode of the electrode are the positive electrode and the negative electrode of the electrolytic cell at the same time; seawater is filtered and then injected into an electrolytic tank to perform electrochemical reaction, hydrogen is separated out on a cathode, and the hydrogen is discharged through a cathode exhaust port and collected by a hydrogen storage device.
2. The liquid metal magnetic fluid direct water electrolysis hydrogen production device according to claim 1, wherein the electrolytic tank comprises a cathode chamber and an anode chamber, and a cathode-anode chamber diaphragm is arranged between the cathode chamber and the anode chamber.
3. The liquid metal magnetic fluid direct water electrolysis hydrogen production device according to claim 1, wherein a water inlet and a water outlet are formed in the bottom area of the electrolytic tank.
4. The liquid metal magnetic fluid direct water electrolysis hydrogen plant of claim 1, wherein the top region of the electrolyzer is provided with a cathode chamber vent, the cathode chamber vent being in communication with the cathode chamber.
5. The liquid metal magnetic fluid direct water electrolysis hydrogen plant of claim 1, wherein the top area of the electrolyzer is provided with an anode chamber exhaust port, the anode chamber exhaust port being in communication with the anode chamber.
6. A liquid metal magnetic fluid direct water electrolysis hydrogen production device according to claim 3, wherein electrolyte is arranged in the electrolytic tank, and the electrolyte is input into the electrolytic tank through a water inlet.
7. A method of producing hydrogen based on the direct electrolysis of water by a liquid metal magnetic fluid according to any one of claims 1 to 6, comprising:
the liquid metal flows unidirectionally in the liquid metal pipeline under the action of external force, when passing through the magnetic field generated by the N pole and the S pole of the permanent magnet, cuts magnetic force lines, generates induced electromotive force between a pair of electrodes, and electric energy is led out to an electrolytic tank through the pair of electrodes, and the electrolytic tank utilizes the electric energy to electrolyze electrolyte.
8. The method for producing hydrogen by directly electrolyzing water with liquid metal magnetic fluid as claimed in claim 7, wherein hydrogen is separated out in the cathode chamber of the electrolyzer, discharged through the cathode exhaust port and collected, and the remaining products are discharged through the anode exhaust port and the water outlet.
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| CN113373051B (en) * | 2021-06-17 | 2023-10-10 | 河南农业大学 | Miniature speed-control type photo-biological hydrogen production reaction device |
| CN114318364A (en) * | 2022-01-13 | 2022-04-12 | 西南科技大学 | Method for preparing hydrogen by electrolyzing water based on magnetic polarization pretreatment |
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| CN107221370A (en) * | 2017-06-09 | 2017-09-29 | 南京航空航天大学 | Core gradient utilization system and method based on liquid metal spontaneous evaporation magnetohydrodynamic generator |
| CN108085713A (en) * | 2018-02-13 | 2018-05-29 | 仉军 | Magnetic fluid hydrogen generating system |
| CN213113530U (en) * | 2019-01-15 | 2021-05-04 | 山东大学 | Liquid metal magnetic fluid direct water electrolysis hydrogen production device |
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| US20180163313A1 (en) * | 2011-04-21 | 2018-06-14 | Hydville Systems Ltd | Combined magnetohydrodynamic and electrochemical method and corresponding apparatus for producing hydrogen |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107221370A (en) * | 2017-06-09 | 2017-09-29 | 南京航空航天大学 | Core gradient utilization system and method based on liquid metal spontaneous evaporation magnetohydrodynamic generator |
| CN108085713A (en) * | 2018-02-13 | 2018-05-29 | 仉军 | Magnetic fluid hydrogen generating system |
| CN213113530U (en) * | 2019-01-15 | 2021-05-04 | 山东大学 | Liquid metal magnetic fluid direct water electrolysis hydrogen production device |
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