CN105256331A - Electrolysis device capable of controlling movement of oxygen bubbles by adopting magnetoelectric coupling - Google Patents
Electrolysis device capable of controlling movement of oxygen bubbles by adopting magnetoelectric coupling Download PDFInfo
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- CN105256331A CN105256331A CN201510752333.4A CN201510752333A CN105256331A CN 105256331 A CN105256331 A CN 105256331A CN 201510752333 A CN201510752333 A CN 201510752333A CN 105256331 A CN105256331 A CN 105256331A
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Abstract
The invention relates to an electrolysis device capable of controlling movement of oxygen bubbles by adopting magnetoelectric coupling, belonging to the field of electrochemical techniques such as energy accumulation and metal deposition electrolysis, extraction and electrolytic synthesis. The device comprises an electrolytic cell; two electrodes are arranged on corresponding positions on two opposite sides of the electrolytic cell; an electrolyte is contained in the electrolytic cell; and the device further comprises a magnet which clings to the position corresponding to the positive electrode or the negative electrode on the outer surface of the electrolytic cell, and the magnet is used for driving the oxygen bubbles to move directionally along the surface of the positive electrode in the electrolysis process. By adopting the device, the problem that the oxygen bubbles gather is solved; the composition and the temperature of the electrolyte are more uniform; the dendritic growth is restrained, so that the metal deposition surface quality is improved, and the energy is saved; and furthermore, the electrolyte is driven to move directionally. The electrolysis device can be widely applied to the fields of charging-type metal-air batteries, fuel cell regeneration, water electrolysis, metal electro-deposition, electro-extraction and electrolytic synthesis and the like, and can be also applied to the field of object directional movement.
Description
Technical field
The invention belongs to energy storage, metal deposit electrolyte, purification and electrolytic synthesis technical field of electrochemistry, particularly adopt the magneto-electric coupled device controlling oxygen bubbles motion in oxygen evolution reaction process.
Background technology
Oxygen evolution reaction occurs in electrochemical reaction in electrode-electric solution liquid two-phase interface,
the dynamic property of oxygen evolution reaction is not only relevant with the activity of catalyzer, also removes fast with the bubble of electrode surface and is closely related.Under pure current field condition, general oxygen evolution reaction device is made up of rectangle electrolyzer 1, anode 3, negative electrode 4, electrolytic solution 2, as shown in Figure 1, wherein, rectangle electrolyzer 1 interior dimensions be 250mm × 500mm × 70mm, 50mm × 50mm nickel screen as anode 3, mesh size 3mm × 2mm, 50mm × 50mm stainless steel plate is as negative electrode 4, and electrolytic solution 2 is by 7mol/LKOH solution and dissolves saturated ZnO and form.Electrochemical reaction is at anode 3 near surface generation oxygen evolution reaction, and the oxygen concentration that the electrolytic solution near anode contains reaches capacity state, and oxygen bubbles 5 occurs and outwardly spreads perpendicular to anode 3.If oxygen bubbles motion is hindered, will anode surface be gathered in, and then hinder follow-up electrochemical reaction, increase energy consumption and even damage relevant device.Therefore, the oxygen bubbles removing electrode surface fast normally carries out most important for oxygen evolution reaction.
Object of which movement or derive from object self-deformation, otherwise stemming from object external force promotes.Realize moving by self-deformation and be common in organic sphere elongate strip structure species as earthworm, flagellate.Object of which movement realizes moving by external force as a rule, as electrical forces, magnetic field force and optical radiation etc., object of which movement controls mainly through diffusion, convection current, migration three kinds of modes in a liquid, wherein, uneven concentration causes liquid component diffusion motion, flow dynamics causes liquid convection, and the external force suffered by liquid causes liquid movement.
Hindered for solving oxygen bubbles motion in Electrochemical oxygen evolution reaction, and then hinder the problem of follow-up electrochemical reaction, existing a kind of bubble produced based on electrochemical reaction drives conductor motion, namely in the electrolyzer formed at pair of parallel electrode, polarized action is had for conductor wherein, analyse oxygen and evolving hydrogen reaction in the conductor both sides relative to electrode, be the twice of amount of oxygen according to the amounts of hydrogen of the known production of chemical equation, thus cause conductor Linear-moving or rotation.Control to be suspended in the motion of water surface semiconductor-on-insulator diode by external alternating electric field, grade diode pair voltage commutation, causes neighbouring particle electrokinetic flow, thus orders about diode motion.But conductor and electrochemical reaction are the prerequisites of this system object of which movement; And speed of moving body is slow, is only suitable for being applied to micromachine.
The another kind of oxygen bubbles being taken away oxygen evolution reaction release by electrolyte flow, is carried away the oxygen bubbles of generation in time, avoids oxygen bubbles to gather at electrode surface, guarantee that electrode fully contacts with electrolytic solution mainly through electrolyte flow rate.This technology needs a set of electrolytic solution drive system, and additionally increases energy expenditure.
Also have a kind of by changing electrode surface microscopic appearance, increase electrode surface roughness, such bubble diminishes at the contact angle of electrode surface, easily makes bubble disengagement.This scheme just improves the ability that bubble automatically disengages electrode surface, but is not suitable for the situation of electrode lower surface generation oxygen evolution reaction.
To sum up, current prior art mainly adopts extrinsic motive to control bubble motion, this method successful, but can increase cost.Electrode surface structures optimization method is very little on bubble motion impact, can not change bubble motion, and be limited to component structural and placement location.
Summary of the invention
The object of the invention is for solving electrode surface oxygen bubbles sticking problem in oxygen evolution reaction process, propose a kind of electrolyzer adopting magneto-electric coupled control oxygen bubbles to move, not only solve oxygen bubbles and gather problem, bath composition, temperature can also be impelled more even, containment dendritic growth, improves metal deposition surface quality and saves energy; In addition, also electrolytic solution displacement can be promoted.
To achieve these goals, the technical solution used in the present invention is:
A kind of electrolyzer adopting magneto-electric coupled control oxygen bubbles to move, it is characterized in that, this device comprises electrolyzer, at two opposite side relative positions of electrolyzer, pair of electrodes is installed, in electrolyzer, electrolytic solution is housed, also be included in one block of magnet that the outside surface of electrolyzer and male or female opposite position are close to, for making in electrolytic process oxygen bubbles along anode surface displacement.
The present invention can promote liquid displacement, can be used for micromachine even medical health field.
Feature of the present invention and beneficial effect:
The present invention has the mode of motion of oxygen bubbles under pure electric field and magneto-electric coupled field, different magnetic poles, different electrolyzer by contrast, obtains oxygen bubbles and move under magnetic electric field environment and change, design the device that can control oxygen bubbles and move.
In electrolysis process, utilize this device to contribute to oxygen bubbles depart from electrode surface, impel bath composition, temperature more even, containment dendritic growth, thus improve metal deposition surface quality and save energy.
Apparatus of the present invention utilize magneto-electric coupled method to control oxygen bubbles motion, can be widely used in the fields such as rechargeable metal-air battery, fuel cell regeneration, water electrolysis, metal electrodeposition, refining and electrolytic synthesis.In addition, the present invention also can use and promote liquid or object and do regular field of moving along a direction.
Accompanying drawing explanation
Fig. 1 be general oxygen evolution reaction apparatus structure and under pure current field condition oxygen bubbles perpendicular to anode surface motion schematic diagram.
Fig. 2 is a kind of embodiment device schematic diagram of the present invention.In this embodiment during magnet S pole-face antianode oxygen bubbles along anode surface parallel motion.
Fig. 3 is another kind of embodiment device schematic diagram of the present invention.Oxygen bubbles clockwise rotation during magnet S pole-face antianode in this embodiment.
Embodiment
Embodiments of the present invention are described in detail below in conjunction with drawings and Examples.
A kind of electrolyzer embodiment one adopting magneto-electric coupled control oxygen bubbles to move that the present invention proposes, as shown in Figure 2
The present embodiment device comprises the rectangular electrolyzer 11 of 250mm × 500mm × 70mm, at two long limit relative positions of electrolyzer, pair of electrodes is installed, its Anodic 13 adopts 50mm × 50mm nickel screen, negative electrode 14 adopts 50mm × 50mm stainless steel plate, electrolytic solution 12 is housed in electrolyzer, be by 7mol/LKOH solution and dissolve saturated ZnO and form, what be also included in the outside surface of electrolyzer and anode 13 opposite position is close to one piece of square ndfeb magnet 16 of 50mm × 50mm, as shown in Figure 2.
The present embodiment is carrying out in electrolytic process, and oxygen bubbles 15 (with when not arranging magnet 6) direction of motion changes, and oxygen bubbles is not perpendicular to anode 13 surface diffusion campaign, but moves along anode 13 surface orientation.Oxygen bubbles 15 direction of motion depends on magnet 16 magnetic pole, and when one piece of magnet 16S pole-face anode, oxygen bubbles 15 Motion Parallel moves right in anode 13 surface, as shown in Figure 2; When one piece of magnet 16N pole-face anode, oxygen bubbles 15 is moved to the left along anode 13 surface.In addition, the present embodiment also can by magnet 16 near the outside surface and negative electrode 14 opposite position that are attached to electrolyzer, now when this magnet 16S pole-face is to negative electrode 14, oxygen bubbles 15 is moved to the left along anode 13 surface, and when one piece of magnet 16N pole-face is to negative electrode 14, oxygen bubbles 15 moves right along anode 13 surface; The present embodiment also can be included in anode 13, one block of magnet is respectively adsorbed in the electrolyzer both sides of negative electrode 14 relative position, and magnetic pole is different in nature, can obtain oxygen bubbles 15 motion and strengthen; When the magnetic pole same sex of both sides, oxygen bubbles 15 hypomotility.
Oxygen bubbles 15 moves and strong and weak to be also directly proportional to the magnetic induction density in strength of electric field, magnetic field, and charging voltage is higher, and strength of electric field is stronger, the oxygen bubbles more than 15 that anode 13 generates, and oxygen bubbles 15 moves reinforcement; When magnetic field magnetic induction strengthens, oxygen bubbles 15 movement velocity is accelerated.In addition, oxygen bubbles 15 moves and electrolyte temperature is inversely proportional to, and when electrolyte temperature raises, ion pedesis aggravates, and irregular movement ratio raises.
Embodiment two
The present embodiment device comprises the square electrolyzer of 70mm × 70mm × 70mm 21, at two opposite side relative positions of electrolyzer, pair of electrodes is installed, its Anodic 23 adopts 50mm × 50mm nickel screen, negative electrode 24 adopts 50mm × 50mm stainless steel plate, electrolytic solution 22 is housed in electrolyzer is by 7mol/LKOH solution and dissolve saturated ZnO and form, also comprise the square ndfeb magnet 26 of 50mm × 50mm of the outside surface being located at electrolyzer, this magnet 26 is close to the corresponding position of anode 23, as shown in Figure 3.
The present embodiment is carrying out in electrolytic process, and oxygen bubbles 25 moves and forms eddy current.When magnet 26S pole-face anode 23, oxygen bubbles 25 turns clockwise, as shown in Figure 3; If during magnet 26N pole-face anode 23, oxygen bubbles 25 is rotated counterclockwise.Oxygen bubbles 25 rotary motion then can cause electrolytic solution 22 to form eddy current, and the present embodiment device contributes to oxygen bubbles 25 and departs from anode 23 surface, bath composition, homogeneous temperature, containment dendritic growth, thus improves metal deposition surface quality and save the energy.
Configuration as described herein is exemplary, and these concrete exemplifying embodiments should not be considered to have limited significance, and the present invention is except to except oxygen bubbles locomotive regulation, and magneto-electric coupled also have impact to hydrogen motion.Such as, above-mentioned technology can be applicable to the fields such as rechargeable metal-air battery, fuel cell regeneration, water electrolysis, metal electrodeposition, refining and electrolytic synthesis.Therefore, the present invention includes the combination of on the books and non-obvious various system and method disclosed herein, and further feature, function and/or the characteristic that discloses here.
Claims (7)
1. one kind adopts the electrolyzer of magneto-electric coupled control oxygen bubbles motion, it is characterized in that, this device comprises electrolyzer, at two opposite side relative positions of electrolyzer, pair of electrodes is installed, in electrolyzer, electrolytic solution is housed, also be included in one block of magnet that the outside surface of electrolyzer and male or female opposite position are close to, for making in electrolytic process oxygen bubbles along anode surface displacement.
2. electrolyzer as claimed in claim 1, it is characterized in that, described electrolyzer is rectangle, installing pair of electrodes, by changing the magnetic pole of described magnet, changing the direction of motion of oxygen bubbles at two long limit relative positions of electrolyzer.
3. electrolyzer as claimed in claim 2, is characterized in that, this device is also included in anode, the electrolyzer both sides of negative electrode relative position respectively adsorb one block of magnet, two pieces of magnet poles opposite sex, move strengthen for making oxygen bubbles; Two pieces of magnet poles same sexes, for making oxygen bubbles hypomotility.
4. electrolyzer as claimed in claim 1, it is characterized in that, described electrolyzer is square, and moving for making oxygen bubbles forms eddy current.
5. electrolyzer as described in claim 1,2,3 or 4, is characterized in that, adjusts this device strength of electric field, magnet magnetic force, charging voltage, electrolyte temperature, generates how many exercise intensities and speed for regulating oxygen bubbles.
6. electrolyzer as described in claim 1,2,3 or 4, is characterized in that, described anode adopts nickel screen, and negative electrode adopts stainless steel plate electrolytic solution to be by KOH solution and dissolves saturated ZnO and forms, and this magnet described adopts square ndfeb magnet.
7. electrolyzer as described in claim 1,2,3 or 4, is characterized in that, this device is used for rechargeable metal-air battery, fuel cell regeneration, water electrolysis, metal electrodeposition, refining and electrolytic synthesis field, or for object orientation mobile field.
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Cited By (8)
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| CN105648515A (en) * | 2016-03-22 | 2016-06-08 | 扬州大学 | Anode aluminum foil forming device |
| CN106048645A (en) * | 2016-07-14 | 2016-10-26 | 重庆大学 | Method for improving oxyhydrogen machine electric energy efficiency by external magnetic field |
| CN106207317A (en) * | 2016-09-21 | 2016-12-07 | 北京机械设备研究所 | A kind of metal air fuel cell based on magnetic control stream |
| CN106602154A (en) * | 2016-12-09 | 2017-04-26 | 北京航空航天大学 | Method for driving bubble to move and method for reducing self-discharge of battery |
| CN110274508A (en) * | 2019-06-13 | 2019-09-24 | 华南师范大学 | A kind of active strengthening and heat transferring device and active intensified heat transfer method |
| CN110904470A (en) * | 2019-11-22 | 2020-03-24 | 西北矿冶研究院 | Electrolysis device |
| CN112481659A (en) * | 2020-11-26 | 2021-03-12 | 江西理工大学 | Device and method for strengthening electrolyte movement in electrolytic cell in non-contact manner |
| EP3798334A1 (en) | 2019-09-25 | 2021-03-31 | Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. | A process for enhancing the catalytic efficiency of oer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106048645A (en) * | 2016-07-14 | 2016-10-26 | 重庆大学 | Method for improving oxyhydrogen machine electric energy efficiency by external magnetic field |
| CN106207317A (en) * | 2016-09-21 | 2016-12-07 | 北京机械设备研究所 | A kind of metal air fuel cell based on magnetic control stream |
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| CN106602154B (en) * | 2016-12-09 | 2019-03-22 | 北京航空航天大学 | A kind of method driving bubble motion and the method for reducing self-discharge of battery |
| CN110274508A (en) * | 2019-06-13 | 2019-09-24 | 华南师范大学 | A kind of active strengthening and heat transferring device and active intensified heat transfer method |
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| EP3798334A1 (en) | 2019-09-25 | 2021-03-31 | Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. | A process for enhancing the catalytic efficiency of oer |
| WO2021058650A1 (en) | 2019-09-25 | 2021-04-01 | Max Planck Gesellschaft Zur Förderung Der Wissenschaften eV | A process for enhancing the catalytic efficiency of oer |
| CN110904470A (en) * | 2019-11-22 | 2020-03-24 | 西北矿冶研究院 | Electrolysis device |
| CN112481659A (en) * | 2020-11-26 | 2021-03-12 | 江西理工大学 | Device and method for strengthening electrolyte movement in electrolytic cell in non-contact manner |
| CN112481659B (en) * | 2020-11-26 | 2022-03-08 | 江西理工大学 | Device and method for strengthening electrolyte movement in electrolytic cell in non-contact manner |
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