CN114836775A - Integrated portable photovoltaic water electrolysis hydrogen production device and hydrogen production system - Google Patents
Integrated portable photovoltaic water electrolysis hydrogen production device and hydrogen production system Download PDFInfo
- Publication number
- CN114836775A CN114836775A CN202210260849.7A CN202210260849A CN114836775A CN 114836775 A CN114836775 A CN 114836775A CN 202210260849 A CN202210260849 A CN 202210260849A CN 114836775 A CN114836775 A CN 114836775A
- Authority
- CN
- China
- Prior art keywords
- hydrogen production
- shell
- solar cell
- electrode
- electrolyte
- 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
- 239000001257 hydrogen Substances 0.000 title claims abstract description 125
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 125
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 124
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 86
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 62
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 30
- 239000003792 electrolyte Substances 0.000 claims abstract description 37
- 238000005192 partition Methods 0.000 claims abstract description 22
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000001301 oxygen Substances 0.000 claims abstract description 15
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 13
- 238000004891 communication Methods 0.000 claims abstract description 7
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 18
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 17
- 239000010409 thin film Substances 0.000 claims description 15
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- 238000011049 filling Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 230000003197 catalytic effect Effects 0.000 abstract description 11
- 238000006243 chemical reaction Methods 0.000 abstract description 8
- 239000007789 gas Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 238000005342 ion exchange Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 238000010248 power generation Methods 0.000 description 5
- KTSFMFGEAAANTF-UHFFFAOYSA-N [Cu].[Se].[Se].[In] Chemical compound [Cu].[Se].[Se].[In] KTSFMFGEAAANTF-UHFFFAOYSA-N 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 238000001027 hydrothermal synthesis Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000012611 container material Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 229910021419 crystalline silicon Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011943 nanocatalyst Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000027756 respiratory electron transport chain Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
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
- 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
-
- 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
-
- 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
-
- 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
- C25B15/00—Operating or servicing cells
- C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes
-
- 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
- C25B15/00—Operating or servicing cells
- C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes
- C25B15/083—Separating products
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
-
- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Power Engineering (AREA)
- Inorganic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The invention relates to a water electrolysis hydrogen production device, in particular to an integrated portable photovoltaic water electrolysis hydrogen production device and a hydrogen production system, which comprise a shell, a clapboard fixedly arranged in the shell, a solar cell fixed on the inner side of the shell and an electrode fixed on the solar cell; the partition plate divides a cavity formed by the shell into a cathode cavity and an anode cavity, the bottoms of the cathode cavity and the anode cavity are communicated, and electrolyte is stored in the cavities; the electrodes are welded on the solar cell and are respectively fixed in the cathode chamber and the anode chamber through the solar cell; the electrode is immersed in the electrolyte and is higher than the communication position at the bottom of the chamber; the top surface of the shell is respectively provided with an exhaust port for exhausting hydrogen or oxygen. Compared with the prior art, the solar energy conversion device has the advantages that the photovoltaic cell is further tightly combined with the catalytic material to form an integrated device, so that solar energy is more conveniently converted into hydrogen energy, and the popularization of hydrogen energy is promoted.
Description
Technical Field
The invention relates to a water electrolysis hydrogen production device, in particular to an integrated portable photovoltaic water electrolysis hydrogen production device and a hydrogen production system.
Background
Both photovoltaic and wind power generation are unstable. Unstable energy sources are a troublesome task for the power grid. Because electric energy is a ready-to-use energy source, it cannot be stored in large quantities. Excess electrical energy needs to be converted to other conditions for storage, such as pumped storage power stations, or is otherwise wasted. The photovoltaic hydrogen production directly converts the electric power into hydrogen energy, so the photovoltaic hydrogen production can solve the problem of light abandonment to a great extent.
Hydrogen energy is known as the most promising clean energy source in the 21 st century. Hydrogen energy as a secondary energy source has the following advantages: firstly, storing and long-distance conveying are carried out; secondly, high-efficiency electric energy conversion and heat supply can be realized; high energy density; fourthly, the reaction product is only water, and no other pollutants are discharged; hydrogen is widely used as an important industrial raw material. The current main flow route for hydrogen production is to produce hydrogen by using traditional energy sources such as coal, natural gas and the like, but the hydrogen production mode has the problem of high carbon emission. The photovoltaic hydrogen production belongs to green hydrogen, and is a method for producing hydrogen by electrolyzing water, namely, the hydrogen is produced by electrolyzing water through photovoltaic power generation, so that carbon emission is avoided in the production process, zero carbon emission is realized in the use process, and the real double-cleanness is realized. Therefore, the utilization of solar energy for hydrogen production is a leading-edge hotspot research direction in the energy field at present.
The photovoltaic hydrogen production system generally comprises a photovoltaic module part and an electrolytic cell part, main equipment and facilities comprise a photovoltaic module, a header box, a support, a foundation, a grounding device and the like, the number of module is large, and the connection is complex. CN112575337A discloses a photovoltaic hydrogen production device and a system thereof, which comprises an electrolytic cell, a photovoltaic device and an electric-heat conversion mechanism, wherein the electric-heat conversion mechanism is used for receiving light energy focused by the photovoltaic device and simultaneously converting the light energy into electric energy and heat energy; the electric heat conversion mechanism is connected with the electrolytic cell, takes the electric energy as the energy required by electrolysis in the electrolytic cell, and takes the heat energy as the heating energy of the electrolyte in the electrolytic cell. Although the photovoltaic hydrogen production equipment and the system thereof provided in the patent have good efficiency, the whole equipment structure is complex, occupies large space and is not suitable for portable use.
Disclosure of Invention
The invention aims to solve at least one of the problems, and provides an integrated portable photovoltaic water electrolysis hydrogen production device and a hydrogen production system, which realize the combined use of photovoltaic and catalysis, are convenient to carry and can be used integrally; moreover, the hydrogen obtained by the device has high purity and can be used after being simply dried.
The purpose of the invention is realized by the following technical scheme:
the invention discloses an integrated portable photovoltaic electrolyzed water hydrogen production device, which comprises a shell, a clapboard fixedly arranged in the shell, a solar cell fixed on the inner side of the shell and an electrode fixed on the solar cell;
the separator divides a chamber formed by the shell into a cathode chamber and an anode chamber with communicated bottoms, and electrolyte is stored in the chambers;
the electrodes are welded on the solar cell and are respectively fixed in the cathode chamber and the anode chamber through the solar cell; the electrode is immersed in the electrolyte and is higher than the communication position at the bottom of the chamber;
the top surface of the shell is respectively provided with an exhaust port for exhausting hydrogen or oxygen.
The internal cavity is divided into a cathode cavity and an anode cavity by the partition plate, so that hydrogen and oxygen can be respectively generated at the cathode and the anode, and the safety of hydrogen production is improved; a gap communicated with the cathode chamber and the anode chamber is reserved at the bottom of the partition board and is used for carrying out ion exchange, so that hydrogen production by water electrolysis can be normally carried out. Due to the design of the partition board with the gap at the bottom, the use of a high-price proton exchange membrane in the traditional electrolytic tank can be omitted, the integral production cost can be effectively reduced, and the method is suitable for application in portable equipment. The electrode is immersed in the electrolyte, so that the normal operation of the electrode can be ensured, and the electrode is higher than the communicating part at the bottom of the chamber, so that the safety problem caused by the fact that generated gas enters another chamber from the communicating part and is mixed is prevented; the height of the via is typically set at 1/9-1/7 as the height of the partition and the height of the electrode is guaranteed to be higher than the via. The exhaust port can be connected with an external device, so that hydrogen and oxygen generated by catalytic reaction are conveyed to a designated device for post-treatment or application.
Preferably, the shell and the partition plate are made of acrylic materials. The acrylic material has good chemical stability, weather resistance and other properties and is easy to process, and the acrylic material can provide sufficient stability and safety when being used as a container material for containing electrolyte; in addition, the acrylic material has good transparency, and the light transmittance is usually over 92%, so that the solar cell installed inside the cavity can well receive solar radiation to generate electricity; the acrylic material is light, has the density of only half of that of glass, has certain strength and low cost, and is suitable for portable use.
Preferably, the solar cell is a thin film cell. The thin film battery is low in cost and small in thickness, is a high-efficiency energy product, is low in voltage required by hydrogen production through water electrolysis, can reach the required voltage by adopting the thin film battery, can greatly reduce the cost compared with the traditional solar battery, and can improve the space utilization rate.
Preferably, the solar cell is a copper indium gallium selenide thin film battery. The CIGS thin-film battery has the remarkable characteristics of low production cost, small pollution, no fading, good low-light performance and the like, the photoelectric conversion efficiency of the CIGS thin-film battery is at the head of various thin-film solar batteries, the cost of the CIGS thin-film battery is only one third, and the CIGS thin-film battery is close to that of a crystalline silicon solar battery, so that the production cost can be greatly reduced on the premise of ensuring that the generated electricity is enough to be used for hydrogen production by electrolyzing water.
The solar cell in the anode chamber and the solar cell in the cathode chamber are connected in series to collectively provide a voltage for hydrogen production from water electrolysis.
Preferably, the electrode is NiFe 10 Se 10 @ NF electrode. NiFe 10 Se 10 The @ NF electrode is NiFe grown on electrode foam Nickel (NF) by a hydrothermal method 10 Se 10 The specific method of the nano catalyst comprises the following steps: mixing the molar ratio of 1: 1 FeSO 4 ·7H 2 O and SeO 2 Uniformly mixing in deionized water, stirring for half an hour, transferring to a reaction kettle, keeping at 120 ℃ for 12 hours, taking out a sample, washing and drying. NiFe 10 Se 10 The @ NF electrode has good catalytic activity and full-water decomposition performance, so that a smaller electrode area can be adopted to achieve better electrolysis efficiency.
Preferably, the electrolyte is alkaline electrolyte and the concentration is 1 mol/L.
Preferably, the electrolyte comprises potassium hydroxide or sodium hydroxide.
Preferably, the electrode is soldered to the solar cell by solder. And welding the electrode on the solar cell through conductive metal so as to communicate the electrode with the solar cell.
Preferably, the solar cell is sealed by epoxy resin and then bonded inside the shell. After the solar cell is packaged, the packaged solar cell can be directly fixed in the cavity, so that an electrode welded on the solar cell is directly contacted with an electrolyte, and hydrogen is produced by water electrolysis; therefore, the circuit which needs to be soaked in the electrolyte can be eliminated, the circuit is prevented from being corroded and damaged, the photovoltaic part of the photovoltaic electrolyzed water hydrogen production device and the electrolyzed water hydrogen production part can be integrated, the device is integrated, and the miniaturization and portability degree is improved.
Preferably, the top of the shell is provided with a liquid adding port for adding electrolyte; and a liquid outlet for discharging the electrolyte is formed in the bottom of the shell. The liquid filling port and the liquid outlet are respectively provided with corresponding hole plugs for forming a sealed cavity except the air outlet inside the liquid filling port and the liquid outlet in normal operation; or can be connected with an external electrolyte storage tank for circulation flow.
The invention discloses an integrated portable photovoltaic electrolyzed water hydrogen production system which is formed by connecting a plurality of integrated portable photovoltaic electrolyzed water hydrogen production devices in series or in parallel. The photovoltaic electrolyzed water hydrogen production device is connected to carry out combined hydrogen production so as to meet various requirements.
The working principle of the invention is as follows:
the chamber formed by the shell is divided into an anode chamber and a cathode chamber by the clapboard, and a gap for ion exchange at two sides is reserved at the bottom of the clapboard.
The solar cells arranged in the anode chamber and the cathode chamber absorb solar radiation, voltage is generated at the welded electrodes (anode and cathode) respectively to electrolyze water, ion exchange is carried out at the gap flowing out of the bottom of the partition plate, and the generated hydrogen and oxygen are discharged from the device through the gas outlet arranged on the top surface under the action of density difference.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention welds the electrode on the solar cell, and the solar cell is arranged and fixed in the shell, so that the photovoltaic part and the electrolyzed water hydrogen production part are integrated, meanwhile, the copper indium gallium selenide thin-film battery with excellent power generation performance is adopted as the solar cell, and the NiFe with excellent catalytic activity is adopted 10 Se 10 The @ NF electrode is used as the electrode of the cathode and the anode, so that the photovoltaic water electrolysis hydrogen production device has good hydrogen production rate. In addition, the hydrogen produced by the photovoltaic water electrolysis hydrogen production device has stable yield and high purity (no other substances are produced in the water electrolysis process, and the hydrogen and the oxygen are respectively led to pass through the gas outlets at the tops of the cathode and the anode by the separation of the partition boardOutflow device and can not take place to mix, can obtain high-purity gas), can use after simple drying, can avoid the danger because of the low use that causes of hydrogen purity, makes things convenient for the later stage simultaneously. Due to the ingenious design of the partition plate, the bottom of the device is commonly used for ion exchange, and a proton exchange membrane can be omitted; in addition, the device separately generates hydrogen and oxygen, thereby not only ensuring the safety, but also being easy to collect and utilize.
2. The cathode and the anode of the device are separated by the partition board, and a gap is reserved at the bottom position for carrying out ion exchange in the electrolytic process, so that the hydrogen production by water electrolysis can be normally carried out, the hydrogen and the oxygen generated by the cathode and the anode can be effectively separated, and the safety problem caused by the mutual mixing of the gases at the two sides is prevented. The shell and the partition board are both made of acrylic plates, so that the solar cell packaging structure has excellent stability, processability and light transmittance, provides basic conditions for mounting the solar cell in the shell, can be made into the shell with a required shape through simple processing, and does not generate safety problems such as corrosion of electrolyte after long-time use; in addition, the portable device has small density and certain strength, is suitable for being used as a shell of the portable device, and lightens the whole portable device. Because the device adopts the electrode with high catalytic activity and the solar cell with good power generation performance, the whole device can adopt a small-volume design, and in addition, the device is convenient to carry and use because the structure is simple, the weight is light and the device is integrated.
3. The shell is preset with exhaust ports for oxygen and hydrogen to leave respectively, and the exhaust ports can be directly connected to a target pipeline to convey generated gas to the next target process; a liquid adding port and a liquid outlet for the electrolyte to enter and exit are also preset on the shell, the electrolyte can be added for hydrogen production when hydrogen production is needed, and the liquid adding port and the liquid outlet can also be connected with a liquid storage device for storing the electrolyte outside to form circulation so as to realize continuous hydrogen production; the solar cell is bonded in the shell, and can be cooled to a certain degree through the electrolyte, so that the generating efficiency of the solar cell is ensured to be at a higher level.
4. A plurality of photovoltaic electrolyzed water hydrogen production devices are connected and combined to form an array system, so that a large amount of hydrogen production can be realized, the hydrogen yield can be adjusted according to actual conditions, and the photovoltaic electrolyzed water hydrogen production device has good flexibility and wide application range.
5. Compared with the prior art of hydrogen production by photovoltaic electrolysis of water, the invention further tightly combines the photovoltaic cell and the catalytic material to form an integrated device, and simultaneously grows the nano catalytic material on the electrode, thereby improving the hydrogen production rate, more conveniently converting solar energy into hydrogen energy and promoting the popularization of hydrogen energy. The hydrogen and the oxygen are separately generated and collected, so that the safety is higher, the danger caused by low purity of the hydrogen is avoided, and the use in the later period is facilitated.
Drawings
FIG. 1 is a schematic structural diagram of a housing in the integrated portable photovoltaic electrolyzed water hydrogen production apparatus of the present invention;
FIG. 2 is a schematic structural diagram of the integrated portable photovoltaic electrolyzed water hydrogen production device of the invention;
FIG. 3 is a graph of HER polarization curves for example 1 and a conventional photovoltaic electrolytic water hydrogen plant;
FIG. 4 is a Tafel plot of example 1 and a conventional photovoltaic electrolyzed water hydrogen production apparatus;
FIG. 5 is a Nyquist plot of the electrode impedance of example 1 and a conventional photovoltaic electrolyzed water hydrogen production apparatus;
in the figure: 1-a housing; 2-a separator; 3-a solar cell; 4-electrodes.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Example 1
An integrated portable photovoltaic water electrolysis hydrogen production device is shown in figures 1 and 2 and comprises a shell 1, a partition plate 2 fixedly arranged in the shell 1, a solar cell 3 fixed on the inner side of the shell 1 and an electrode 4 fixed on the solar cell 3;
the partition plate 2 divides a cavity formed by the shell 1 into a cathode cavity and an anode cavity, the bottoms of the cathode cavity and the anode cavity are communicated, and electrolyte is stored in the cavities;
the electrode 4 is welded on the solar cell 3 and is respectively fixed in the cathode chamber and the anode chamber through the solar cell 3; the electrode 4 is immersed in the electrolyte and is higher than the communication position at the bottom of the chamber;
the top surface of the shell 1 is respectively provided with an exhaust port for exhausting hydrogen or oxygen.
More specifically, in the present embodiment:
the device shell 1 and the partition board 2 are made of acrylic plate materials (the acrylic plate with the thickness of 5mm is cut to the required specified size by a PLS6MW type laser cutting machine, the acrylic plate is assembled by epoxy resin and then used as the shell 1 and the partition board 2), the partition board 2 is installed in the shell 1, a small section of gap is reserved between the lower part of the partition board and the bottom of the shell 1, and left and right chambers (an anode chamber and a cathode chamber respectively) separated by the partition board 2 are communicated at the gap, as shown in fig. 1 and fig. 2, the communicated position is used for providing a channel for ion exchange when hydrogen is produced by electrolyzing water. The arrangement of the partition board 2 divides the chamber formed by the housing 1 into an anode chamber and a cathode chamber, one solar cell 3 welded with an electrode 4 is respectively arranged in the anode chamber and the cathode chamber, and the two solar cells 3 are connected in series. In order to facilitate the discharge of gases (hydrogen and oxygen) generated by electrolyzed water and the addition and discharge of electrolyte, two gas outlets for discharging the hydrogen and the oxygen are formed in the shell 1, respectively arranged at the tops of the cathode chamber and the anode chamber and connected to other working sections or devices through pipelines for processing or treatment; a liquid filling opening for supplementing electrolyte and a liquid outlet for discharging the electrolyte are respectively arranged at the upper part and the lower part of the shell 1, and the liquid filling opening and the liquid outlet are plugged by matched hole plugs when the electrolyte is not added or supplemented, so that the electrolyte is prevented from leaking or polluting.
In the embodiment, the solar cell 3 is a copper indium gallium selenide thin-film cell, the specific parameters are shown in table 1, and the copper indium gallium selenide thin-film cell is light in weight, low in cost and suitable for being used in a portable device; directly welding the electrode 4 on the surface of the solar cell 3 by a soldering method so as to supply power to the electrode 4; the welding position of the electrode 4 is required to be higher than the communication position at the bottom of the separator 2, so that hydrogen and air generated by electrolysis cannot leak through the communication position, and meanwhile, the welding position of the electrode 4 on the solar cell 3 is also required to be higher than the communication positionIn operation, the device is immersed in the electrolyte; the electrodes 4 are two 2 x 2cm 2 NiFe (B) 10 Se 10 The @ NF electrode is a nano catalytic material grown on the NF electrode by a hydrothermal method, and the specific method is as follows: 0.417g of FeSO 4 ·7H 2 O, 0.167g of SeO 2 Uniformly mixing with 150mL of deionized water, stirring for half an hour, transferring into a reaction kettle, keeping at 120 ℃ for 12 hours, taking out a sample, washing and drying; after the electrodes 4 are soldered to the solar cells 3, they are finally encapsulated by epoxy resin, and the whole is then bonded in the housing 1.
TABLE 1 CIGS thin film battery performance parameters
| Electrical Property parameters (CIGS) | 1000W/m 2 |
| Maximum power (Pmax) | 0.5W |
| Maximum power point voltage (Vpm) | 1.60V |
| Maximum power point current (Ipm) | 0.31A |
| Open circuit voltage (Voc) | 2.20V |
| Short-circuit current (Isc) | 0.40A |
When the device is used, the solar cell 3 directly irradiates sunlight or simulated sunlight, namely the sunlight or the simulated sunlight vertically irradiates the solar cell 3, the power generation efficiency is highest, and the hydrogen production efficiency is best.
The working principle of the invention is as follows:
the partition board 2 divides the chamber formed by the shell 1 into an anode chamber and a cathode chamber, and a gap for ion exchange at two sides is reserved at the bottom of the partition board 2.
The solar cells 3 arranged in the anode chamber and the cathode chamber absorb solar radiation, and generate voltage at the welded electrodes 4 (anode and cathode) respectively to electrolyze water, the gap flowing out of the bottom of the separator 2 is subjected to ion exchange, and the generated hydrogen and oxygen are discharged from the device through the gas outlet arranged on the top surface under the action of density difference.
And (3) performance testing:
the photovoltaic electrolyzed water hydrogen production device and the NiFe in the embodiment are respectively 10 Se 10 The @ NF electrode is replaced by a conventional NF electrode, and the photovoltaic electrolyzed water hydrogen production device is used for hydrogen evolution performance test analysis, and the test is carried out in 1M potassium hydroxide electrolyte solution by adopting a three-electrode system of a CHI660E electrochemical workstation.
Potassium hydroxide electrolyte with the concentration of 1M is adopted, and both the positive electrode 4 and the negative electrode 4 are NF; under the condition of AM1.0, simulating the direct irradiation of sunlight on a front panel in a laboratory; the generated gas was measured by a hydrogen flow meter, and the hydrogen yield was 11.67mL for 20 minutes.
Adopting potassium hydroxide electrolyte with 1M concentration, and NiFe is adopted as the anode and cathode 4 10 Se 10 @ NF; under the condition of AM1.0, simulating the direct irradiation of sunlight on a front panel in a laboratory; the gas produced was measured using a hydrogen flow meter, 20 minutes, and the hydrogen yield was 17.5 mL.
From the above results, it is clear that NiFe is used 10 Se 10 The photovoltaic electrolysis water hydrogen production device with the @ NF electrode has higher catalytic activity than the photovoltaic electrolysis water hydrogen production device with the NF electrode, and the hydrogen production amount of the integrated photovoltaic hydrogen production device can be increased by 49.96 percent under the same condition.
Using CHI660E electricityThree-electrode system of chemical workstation, respectively for NF electrode and NiFe in 1M potassium hydroxide electrolyte solution 10 Se 10 Testing the hydrogen evolution performance of the photovoltaic water electrolysis hydrogen production device with the @ NF electrode: are all calculated by 5mV s -1 The EIS was tested at an overpotential at a current density of-10 mA and at a measurement frequency of 105 to 0.01 Hz. The scanning rate of CV test is 20-120mV s -1 The potential window is-0.9 to-0.7V.
As shown in FIG. 3, all potentials relative to Hg/HgO are passed through equation E RHE ＝E Hg/HgO +0.098+0.059 × pH converted to reversible potential. Overpotential calculation formula: eta HER ＝E RHE (ii) a Using NiFe 10 Se 10 The photovoltaic water electrolysis hydrogen production device with @ NF electrode is at 10 mA-cm -2 And 50mA · cm -2 The overpotential of the electrode is-59 mV and-226 mV respectively, and the overpotential of the electrode is lower than that of a photovoltaic water electrolysis hydrogen production device adopting a substrate NF electrode (-278mV and-420 mV). This indicates the use of NiFe 10 Se 10 The photovoltaic water electrolysis hydrogen production device with the @ NF electrode has excellent catalytic activity and can perform electrolysis hydrogen production at lower voltage.
With reference to fig. 4, the Tafel plot can be obtained by transforming a polarization curve, where η is a + b × log | j |; using NiFe 10 Se 10 NiFe in photovoltaic electrolytic water hydrogen production device with @ NF electrode 10 Se 10 The Tafel slope of @ NF electrode was 65.9mV dec -1 In comparison with NF electrode (189.8mV dec) -1 ) The Tafel slope of this electrode 4 is significantly reduced, indicating faster HER kinetics.
With reference to fig. 5, the NF semicircle is the largest, indicating that it has the largest electron transfer interface resistance in the GER process, proving not to be a very good hydrogen evolution material; and NiFe 10 Se 10 The @ NF electrode exhibited the smallest half circle, indicating that it has a higher charge transfer rate.
From the above results, NiFe 10 Se 10 The @ NF serving as the electrode 4 has higher catalytic activity than the NF serving as the electrode 4, and the conclusion is consistent with the result of simulating sunlight hydrogen production in a laboratory, which shows that the electrode 4 partially grows to be nano in the integrated photovoltaic hydrogen production deviceThe catalytic material improves the hydrogen production rate, ensures that the hydrogen production efficiency of the portable integrated photovoltaic hydrogen production device is higher, and further promotes the popularization of hydrogen energy. The device combines the high-performance solar cell 3 and the high-performance electrode 4, can reduce the volume of the device on the premise of ensuring the sufficient hydrogen production efficiency, realizes the portable requirement, and is beneficial to the application and use in various fields.
The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (10)
1. An integrated portable photovoltaic electrolyzed water hydrogen production device is characterized by comprising a shell (1), a clapboard (2) fixedly arranged in the shell (1), a solar cell (3) fixed on the inner side of the shell (1) and an electrode (4) fixed on the solar cell (3);
the separator (2) divides a cavity formed by the shell (1) into a cathode cavity and an anode cavity, the bottoms of the cathode cavity and the anode cavity are communicated, and electrolyte is stored in the cavities;
the electrode (4) is welded on the solar cell (3) and is respectively fixed in the cathode chamber and the anode chamber through the solar cell (3); the electrode (4) is immersed in the electrolyte and is higher than the communication position at the bottom of the chamber;
the top surface of the shell (1) is respectively provided with an exhaust port for exhausting hydrogen or oxygen.
2. The integrated portable photovoltaic electrolyzed water hydrogen production device as defined by claim 1, wherein the housing (1) and the partition plate (2) are made of acrylic materials.
3. The integrated portable photovoltaic electrolyzed water hydrogen production device as defined in claim 1, wherein the solar cell (3) is a thin film cell.
4. The integrated portable photovoltaic electrolyzed water hydrogen production device as defined in claim 3, wherein the solar cell (3) is a CIGS thin-film battery.
5. The integrated portable photovoltaic water electrolysis hydrogen production device according to claim 1, characterized in that the electrode (4) is NiFe 10 Se 10 @ NF electrode.
6. The integrated portable photovoltaic electrolyzed water hydrogen production device as defined in claim 1, wherein the electrolyte is an alkaline electrolyte with a concentration of 1 mol/L.
7. The integrated portable photovoltaic electrolytic water hydrogen production plant according to claim 6, wherein the electrolyte comprises potassium hydroxide or sodium hydroxide.
8. The integrated portable photovoltaic electrolyzed water hydrogen production device as defined in claim 1, wherein the solar cell (3) is packaged by epoxy resin and then bonded inside the housing (1).
9. The integrated portable photovoltaic electrolyzed water hydrogen production device as defined in claim 1, wherein the top of the shell (1) is provided with a liquid filling port for adding electrolyte; the bottom of the shell (1) is provided with a liquid outlet for discharging electrolyte.
10. An integrated portable photovoltaic water electrolysis hydrogen production system is characterized by being formed by connecting a plurality of integrated portable photovoltaic water electrolysis hydrogen production devices according to any one of claims 1 to 9 in series or in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210260849.7A CN114836775A (en) | 2022-03-16 | 2022-03-16 | Integrated portable photovoltaic water electrolysis hydrogen production device and hydrogen production system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210260849.7A CN114836775A (en) | 2022-03-16 | 2022-03-16 | Integrated portable photovoltaic water electrolysis hydrogen production device and hydrogen production system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114836775A true CN114836775A (en) | 2022-08-02 |
Family
ID=82561834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210260849.7A Pending CN114836775A (en) | 2022-03-16 | 2022-03-16 | Integrated portable photovoltaic water electrolysis hydrogen production device and hydrogen production system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114836775A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101974764A (en) * | 2010-10-26 | 2011-02-16 | 江苏大学 | Solar thermophotovoltaic hydrogen generating device |
| US20120125780A1 (en) * | 2004-02-24 | 2012-05-24 | Oakes Thomas W | System and method for generating hydrogen gas using renewable energy |
| CN203976930U (en) * | 2014-08-11 | 2014-12-03 | 厦门大学 | Sun power electrolysis seawater device for producing hydrogen |
| CN211689247U (en) * | 2019-12-05 | 2020-10-16 | 中国大唐集团科学技术研究院有限公司 | Photovoltaic hydrogen production system based on parallel connection mode |
| CN113403630A (en) * | 2021-06-22 | 2021-09-17 | 湖南博忆源机电设备有限公司 | Hydrogen producing device by catalytic electrolysis |
| CN113512730A (en) * | 2021-04-08 | 2021-10-19 | 西安交通大学 | Floating type solar photovoltaic photo-thermal coupling water electrolysis hydrogen production system and method |
-
2022
- 2022-03-16 CN CN202210260849.7A patent/CN114836775A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120125780A1 (en) * | 2004-02-24 | 2012-05-24 | Oakes Thomas W | System and method for generating hydrogen gas using renewable energy |
| CN101974764A (en) * | 2010-10-26 | 2011-02-16 | 江苏大学 | Solar thermophotovoltaic hydrogen generating device |
| CN203976930U (en) * | 2014-08-11 | 2014-12-03 | 厦门大学 | Sun power electrolysis seawater device for producing hydrogen |
| CN211689247U (en) * | 2019-12-05 | 2020-10-16 | 中国大唐集团科学技术研究院有限公司 | Photovoltaic hydrogen production system based on parallel connection mode |
| CN113512730A (en) * | 2021-04-08 | 2021-10-19 | 西安交通大学 | Floating type solar photovoltaic photo-thermal coupling water electrolysis hydrogen production system and method |
| CN113403630A (en) * | 2021-06-22 | 2021-09-17 | 湖南博忆源机电设备有限公司 | Hydrogen producing device by catalytic electrolysis |
Non-Patent Citations (1)
| Title |
|---|
| YU-YANG SUN ET AL: ""Ultra-thin NiFeSe nanosheets as a highly efficient bifunctional electrocatalyst for overall water splitting"", 《SUSTAINABLE ENERGY & FUELS》, no. 4, pages 582 - 588 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Landman et al. | Decoupled photoelectrochemical water splitting system for centralized hydrogen production | |
| US7674358B2 (en) | Method and apparatus for hydrogen generation | |
| CN208395285U (en) | Electrolysis unit | |
| US20050183962A1 (en) | System and method for generating hydrogen gas using renewable energy | |
| US20080073205A1 (en) | Integrated photovoltaic-electrolysis cell | |
| CN111188058B (en) | System for producing hydrogen by full-film silicon semiconductor double-electrode unbiased photoelectrocatalysis full-decomposition of water and application thereof | |
| CN110004459B (en) | Heterojunction photo-anode for driving carbon dioxide reduction and preparation method and application thereof | |
| CN102867978B (en) | Flow energy storage battery structure | |
| Yang et al. | Perovskite‐Solar‐Cell‐Powered Integrated Fuel Conversion and Energy‐Storage Devices | |
| CN110205642A (en) | A kind of solar energy equipment | |
| JP2000192275A (en) | Apparatus for electrolysis of water | |
| Murcia-López et al. | Adaptation of Cu (In, Ga) Se 2 photovoltaics for full unbiased photocharge of integrated solar vanadium redox flow batteries | |
| CN108598397A (en) | A kind of MoS2Nanometer sheet/carbon sponge composite material and preparation method and application | |
| CN110760873A (en) | High-temperature solid oxide electrolytic cell device for coupling solar photovoltaic photo-thermal | |
| CN111682288A (en) | Preparation method of lead-acid flow battery with long cycle life | |
| CN107887673A (en) | A kind of liquid-metal fuel cell | |
| CN114836775A (en) | Integrated portable photovoltaic water electrolysis hydrogen production device and hydrogen production system | |
| CN114883582B (en) | Photo-thermal coupling dual-function catalyst for metal-air battery and application thereof | |
| CN211929622U (en) | Novel fuel cell system, power generation system and electric vehicle | |
| CN212085141U (en) | Novel fuel cell system, power generation system and electric vehicle | |
| CN115637455A (en) | Proton exchange membrane PEM (proton exchange membrane) water electrolysis hydrogen production system based on solar power generation and energy supply | |
| CN116143161B (en) | Copper sulfide composite material loaded with copper oxide self-supporting copper foam and preparation method and application thereof | |
| CN106057476B (en) | A kind of dye-sensitized solar cells FeSe2Preparation method of/the Fe to electrode | |
| CN110880609A (en) | Novel fuel cell system, power generation system and electric vehicle | |
| CN217822897U (en) | Vanadium cell electrolyte valence state regulation and control device |
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 |