CN109097790A - The preparation method and water electrolysis hydrogen production reactor of body phase hydrogen-precipitating electrode - Google Patents
The preparation method and water electrolysis hydrogen production reactor of body phase hydrogen-precipitating electrode Download PDFInfo
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- CN109097790A CN109097790A CN201810632039.3A CN201810632039A CN109097790A CN 109097790 A CN109097790 A CN 109097790A CN 201810632039 A CN201810632039 A CN 201810632039A CN 109097790 A CN109097790 A CN 109097790A
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- C25B1/00—Electrolytic production of inorganic compounds or non-metals
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Abstract
The invention discloses the preparation method of body phase hydrogen-precipitating electrode and water electrolysis hydrogen production reactors；The preparation method of body phase hydrogen-precipitating electrode for water electrolysis hydrogen production, it is characterised in that: the following steps are included: the preparation of carbon fiber brush: using carbon fiber as base material, and using titanium silk as the supporter of carbon fiber, body phase carbon fiber brush electrode is made；Two, catalyst growth: 1. electrode pre-processes: the body phase carbon fiber brush electrode prepared is successively cleaned by ultrasonic with acetone, ethyl alcohol, deionized water；2. solvent thermal reaction: after four thio ammonium molybdate is mixed with dimethylformamide, it is put into hydrothermal reaction kettle, pretreated body phase carbon fiber brush electrode is transferred in hydrothermal reaction kettle again and carries out solvent thermal reaction, the body phase liberation of hydrogen catalysis electrode with vertical nanowires inserted sheet molybdenum disulfide structure is obtained after reaction；The present invention is at low cost, and performance is excellent, prepares simple, Cheap highly effective, can be widely used in the fields such as the energy, chemical industry, environmental protection.
Description
Technical field
The present invention relates to water electrolysis hydrogen productions, and in particular to the preparation method and water electrolysis hydrogen production of body phase hydrogen-precipitating electrode are reacted
Device.
Background technique
Hydrogen Energy due to high heating value, pollution-free and source is wide the features such as be considered as the following most potential energy carrier.By
In current electric system cannot still adapt to completely clean energy resource it is extensive access and consumption, thus cause it is serious " abandonment,
Abandon light, abandon water " phenomenon, therefore carrying out water electrolysis hydrogen production using renewable energy (wind energy, solar energy, water energy etc.) is the following big rule
Mould the preferred embodiment of hydrogen.
Water electrolysis hydrogen production (Hydrogen Production by Water Electrolysis) is that aqueous solution is being powered
When, due to the effect of electric field, water can occur oxidation reaction in anode-side and generate oxygen, and cathode can occur reduction reaction and generate hydrogen
Gas.Hydrogen is prepared with product purity height by electrolysis water, cleanliness without any pollution, technique is convenient, it is conducive to the advantages such as large-scale production,
Therefore it will become the following core technology produced in hydrogen economy.However, water electrolysis hydrogen production field limits its development there is also many
The shortcomings that, such as: 1. noble metal catalyst is expensive；2. " surface active sites " exposure is insufficient；3. catalyst utilization compared with
It is low；4. the transmission of substrate and product is limited etc..Therefore, cheap efficient liberation of hydrogen catalysis electrode is developed to be of great significance.
In current electrolysis water field, evolving hydrogen reaction (Hydrogen Evolution Reaction) catalyst is broadly divided into
Following two categories, including noble metal catalyst and non-precious metal catalyst.Noble metal catalyst includes platinum, ruthenium, indium and its oxide
Deng, but since reserves do not enrich this kind of noble metal on earth, and cost is costly, is unfavorable for being mass produced, therefore
The liberation of hydrogen catalyst for developing Cheap highly effective is particularly important.Another kind of is non-precious metal catalyst, mainly includes that transition metal vulcanizes
Object, transition metal phosphide, transition metal carbide and transition metal selenides etc., the high, catalytic activity with earth reserves
The features such as strong, is conducive to the large-scale production of catalyst, is the effective catalyst that may substitute platinum metal in a kind of future.
Electrolysis water hydrogen-precipitating electrode preparation method, which can be divided into, binder and two kinds of binder free.Binder is traditional electricity
Pole preparation method, principle are that the binders such as catalyst granules and (polytetrafluoroethylene (PTFE)) PTFE emulsion or Nafion solution are sufficiently mixed
It closes, then using spraying, hot pressing to form pellet electrode.This method can due to binder presence and cause catalyst agglomeration,
Electric conductivity reduces, and then influences catalytic reaction activity.Therefore, binder free is studied, directly by catalyst growth in substrate or electricity
Pole material (such as: carbon fibre material；Foam metal) two-dimensional electrode or body phase electrode receive significant attention.
Summary of the invention
Technical problem to be solved by the present invention lies in the preparation method and water electrolysis hydrogen production that provide body phase hydrogen-precipitating electrode are anti-
Device is answered, to obtain at low cost and the higher liberation of hydrogen catalysis electrode of performance and water electrolysis hydrogen production reactor.
In order to solve the above-mentioned technical problem, the technical scheme is that being used for the body phase hydrogen-precipitating electrode of water electrolysis hydrogen production
Preparation method, it is characterised in that: the following steps are included:
One, the preparation of carbon fiber brush: using carbon fiber as base material, and using titanium silk as the supporter of carbon fiber,
Body phase carbon fiber brush electrode is made；
Two, catalyst growth:
1. electrode pre-processes: the body phase carbon fiber brush electrode prepared is successively surpassed with acetone, ethyl alcohol, deionized water
Sound cleaning；To remove the impurity of electrode surface and titanium silk supporting body surface, avoid catalyst growth by impurity effect.
2. solvent thermal reaction: using four thio ammonium molybdate as presoma, using dimethylformamide as dispersing agent；By four sulphur
It after being mixed for ammonium molybdate with dimethylformamide, is put into hydrothermal reaction kettle, then by pretreated body phase carbon fiber
Brush electrode is transferred in hydrothermal reaction kettle, and carries out solvent thermal reaction under the conditions of 180 DEG C~200 DEG C, is obtained having after reaction and be hung down
Straight nanometer inserts the body phase liberation of hydrogen catalysis electrode of flaky molybdenum disulfide structure.
Three, electrode assembling and performance test: the body phase liberation of hydrogen catalysis electrode prepared is fitted into designed electrolytic cell,
Carry out electrochemical property test.Solution is 0.5mol/L dilute sulfuric acid, and reference electrode is using saturation Ag/AgCl reference electrode, to electricity
Pole uses coated graphite rod electrrode.
The preferred embodiment of the preparation method of body phase hydrogen-precipitating electrode according to the present invention for water electrolysis hydrogen production, carbon fiber
Dimension is carbon cloth, graphite fibre silk or polymer fiber silk.To prepare there is the Cheap highly effective of strong bubble desorption characteristics to analyse
Carbon cloth can be split as several carbon fiber cloth silks by hydrogen electrode, and body phase carbon cloth wire brush electrode is made.Graphite fibre can also be used
As base material, body phase graphite fibre brush electrode is made.Body phase also is made as base material using polymer fiber silk
Polymer fiber wire brush electrode.
Concrete principle of the invention is as follows: open during carrying out solvent thermal reaction due to body phase electrode structure
Three-dimensional structure can provide better microenvironment for the growth of catalyst, make presoma and dispersing agent reaction solution and electrode more
It fully contacts, so that molybdenum disulfide catalyst can more uniformly be grown in electrode interior, and then promotes electrode and integrally analyse
Hydrogen performance.Secondly, attachment of the bubble on carbonaceous electrodes surface can change electrode surface and reaction solution during evolving hydrogen reaction
Real contact area.Compared to two-dimensional electrode, due to body phase electrode structure high degree of dispersion, bubble can be quicker in electrode surface
Ground be detached from so that bubble it is shorter in superficial residence time and be desorbed when bubble size it is smaller, to increase electrode activation area.
Meanwhile for the carbon fiber brush electrode of carbon fiber wire structure height dispersion, bubble is in the nucleation of electrode surface, growth and is detached from meeting
Cause flow field disturbance and fiber filament acutely to swing, to strengthen mass transfer process, makes the hydrogen ion close to carbonaceous electrodes surface
Concentration boundary layer is thinning, accelerates transmission characteristic of the hydrogen ion to carbonaceous electrodes surface.
The reactor of water electrolysis hydrogen production, including reactor cylindrical case, electrolytic cell are carried out using body phase liberation of hydrogen catalysis electrode
Circular top end plate and electrolytic cell circular base end plate；Anode is provided in reactor cylindrical case, it is characterised in that: the anode is cylinder
The outer surface of shape, anode is provided with anode catalyst；Proton exchange membrane is provided on the inside of anode；The proton exchange membrane is cylinder
Shape, and reactor is divided into cathode chamber and anode chamber, cathode chamber is located on the inside of anode chamber, setting in cathode chamber
There is body phase liberation of hydrogen catalysis electrode；The bottom and top of cathode chamber are respectively arranged with cathode inlet and cathode liquid outlet；Anode
The bottom and top of chamber are respectively arranged with anode inlet and anode liquid outlet；Body phase liberation of hydrogen catalysis electrode and anode pass through electricity
Solve the connection of pond power supply；The body phase liberation of hydrogen catalysis electrode is using carbon fiber as base material, and using titanium silk as carbon fiber
Supporter, body phase carbon fiber brush electrode is made, and the growth inside of body phase carbon fiber brush electrode has vertical nanowires inserted sheet shape
Molybdenum disulfide catalyst；The molybdenum disulfide catalyst be using four thio ammonium molybdate as presoma, using dimethylformamide as
Dispersing agent, and obtained by solvent thermal reaction.
The preparation method of body phase hydrogen-precipitating electrode of the present invention and the beneficial effect of water electrolysis hydrogen production reactor are: this hair
Bright not use binder, using non-precious metal catalyst, hydrogen-precipitating electrode makes two with solvent thermal reaction using body phase electrode structure
It is grown in inside hydrogen-precipitating electrode to molybdenum sulfide catalyst Direct Uniform, catalyst utilization is high, improves electrode entirety liberation of hydrogen
Can, bubble desorption characteristics are excellent, increase electrode activation area, strengthen mass transfer process, accelerate hydrogen ion to carbonaceous electricity
The transmission characteristic of pole surface；The present invention is at low cost, and performance is excellent, and preparation is simple, Cheap highly effective, can be widely used in the energy, chemical industry,
The fields such as environmental protection.
Detailed description of the invention
Fig. 1 a is body phase hydrogen-precipitating electrode structural schematic diagram of the embodiment 1 using carbon cloth preparation.
Fig. 1 b is body phase hydrogen-precipitating electrode structural schematic diagram of the embodiment 2 using graphite fibre preparation.
Fig. 2 is the structure of reactor schematic diagram that embodiment 7 carries out water electrolysis hydrogen production using body phase hydrogen-precipitating electrode.
Fig. 3 a, b are the photograph under the carbon cloth wire brush body phase hydrogen-precipitating electrode surface electronic microscope under different amplification respectively
Piece figure.
Fig. 4 is body phase hydrogen-precipitating electrode electrochemical property test schematic diagram.
Fig. 5 is the Hydrogen Evolution Performance curve graph for two kinds of body phase electrodes that the present invention obtains.
Fig. 6 is performance of the two kinds of obtained body phase electrodes of the invention at the 0.4V vs.RHE under catalyst difference carrying capacity
Curve graph.
Specific embodiment
The present invention is further described specifically below with reference to embodiment, embodiments of the present invention are not limited thereto.
Embodiment 1
Referring to Fig. 1 a, the preparation method of the body phase hydrogen-precipitating electrode for water electrolysis hydrogen production, comprising the following steps:
One, the preparation of carbon cloth wire brush: carbon cloth is split as several carbon cloth silk 2a, and using titanium silk 1a as carbon fiber
Body phase carbon cloth wire brush electrode is made in the supporter of cloth silk 2a；Method particularly includes:
1. carbon cloth is split as several carbon cloth silk 2a, then to its cutting process, it is cut into the carbon cloth of 1~2cm of length
Silk, and weighing carbon cloth yarn quality is 27~54mg.It is 0.3mm or the titanium silk of 0.5mm that prepare length, which be 30~50cm diameter, simultaneously
Supporter as carbon cloth silk.
2. preparation process: by titanium silk 1a doubling, then doubling end being hung on to the hook of board, and by titanium silk other end board
It clamps；Load weighted carbon cloth silk is equably tiled and is placed between two titanium silks, and carbon cloth silk is vertically arranged with titanium silk,
Clamp two titanium silks to carbon cloth silk, the width that carbon cloth silk is put is 1.2~2.2cm；Recycling the drive of motor makes titanium
Silk torsion, and twisting resistance is borrowed, securely fix titanium silk by carbon cloth silk, meeting width slightly reduces when carbon cloth silk is due to torsion,
Therefore 1~2cm of width is ultimately formed, the size of 1~2cm of diameter fixes, the body phase carbon cloth wire brush electrode of stable structure.
Two, catalyst growth:
1. electrode pre-processes: the electrode prepared being successively cleaned by ultrasonic with acetone, ethyl alcohol, deionized water, respectively
It is shaken 20 minutes in ultrasonic cleaning instrument, to remove the impurity of electrode surface and titanium silk supporting body surface, avoids catalyst growth
By impurity effect.
2. solvent thermal reaction: four thio ammonium molybdate and dimethylformamide (DMF) is mixed by 0.75~5.25mg/mL concentration
After conjunction, 30~210mg four thio ammonium molybdate can specifically be mixed with 30~40ml dispersing agent dimethylformamide (DMF)；Super
It shakes 30 minutes, is put into hydrothermal reaction kettle in sound cleaning device, then pretreated electrode is transferred in hydrothermal reaction kettle,
And it is carried out solvent thermal reaction 12~15 hours under the conditions of 180 DEG C~200 DEG C；There is vertical nanowires inserted sheet shape two to form two classes
Vulcanize the body phase liberation of hydrogen catalysis electrode of molybdenum structure.
Embodiment 2
Referring to Fig. 1 b, the preparation method of the body phase hydrogen-precipitating electrode for water electrolysis hydrogen production, comprising the following steps:
One, the preparation of graphite fibre brush: using graphite fibre silk 2b as base material, using titanium silk 1b as graphite fibre
Body phase graphite fibre brush electrode is made in the supporter of dimension；Method particularly includes:
1. material prepares: cutting process is carried out to graphite fibre silk 2b, is cut into the graphite fibre silk of 1~2cm of length, and
Weighing quality is carbonaceous substrate of the graphite fibre silk of 27~54mg as single body phase electrode.Simultaneously prepare length be 30~
50cm titanium silk 1b is as support construction.
2. preparation process: by this section of titanium silk 1b doubling, then doubling end being hung on to the hook of board, and the titanium silk other end is used
Board is clamped；Load weighted graphite fibre silk is equably tiled and is placed between two titanium silks, and graphite fibre silk with
Titanium silk is vertically arranged, and clamps two titanium silks to graphite fibre silk, and the width put of graphite fibre silk be 1.2~
2.2cm；It recycles the drive of motor to reverse titanium silk, and borrows twisting resistance and graphite fibre silk is securely fastened to titanium silk support knot
On structure, when due to torsion can width slightly reduce, ultimately form 1~2cm of width, the size of 1~2cm of diameter fixes,
The body phase graphite fibre brush electrode of stable structure.
Two, catalyst growth:
1. electrode pre-processes: the electrode prepared being successively cleaned by ultrasonic with acetone, ethyl alcohol, deionized water, respectively
It is shaken 20 minutes in ultrasonic cleaning instrument, to remove the impurity of electrode surface and titanium silk supporting body surface, avoids catalyst growth
By impurity effect.
2. solvent thermal reaction: four thio ammonium molybdate and dimethylformamide (DMF) being pressed (how many: how many~how many: more
It, specifically can be by 30~210mg four thio ammonium molybdate and 30~40ml dispersing agent dimethylformamide after ratio mixing less)
(DMF) it mixes；It shakes 30 minutes, is put into hydrothermal reaction kettle in ultrasonic cleaning instrument, then pretreated electrode is shifted
It is carried out solvent thermal reaction 12~15 hours into hydrothermal reaction kettle, and under the conditions of 180 DEG C~200 DEG C；Have vertically to be formed
The body phase liberation of hydrogen catalysis electrode of the slotting flaky molybdenum disulfide structure of nanometer.
Embodiment 3, difference from Example 2 are using polymer fiber silk as base material.
Embodiment 4
Electrode is carried out to study body phase hydrogen-precipitating electrode surface molybdenum disulfide catalyst growing state referring to Fig. 3 a, 3b
Scanning electron microscope shooting, observation, which obtains electrode surface growth, vertically slotting sheet catalyst, illustrates that catalyst success exists
Electrode surface load, and the structure keeps the active edge with catalytic hydrogen evolution effect of electrode surface exposure more, is conducive to urge
Change the promotion of performance.
Embodiment 5
Referring to fig. 4, the body phase liberation of hydrogen catalysis electrode 1,2 prepared is fitted into designed electrolytic cell, carries out electrochemistry
Performance test.Solution is 0.5mol/L dilute sulfuric acid, and reference electrode 15 uses electrode 14 using saturation Ag/AgCl reference electrode
Carbon electrode.Electrochemical property test curve is available by linear volt-ampere curve referring to Fig. 5, as current potential is to negative direction
Scanning, carbon cloth wire brush electrode and graphite fibre brush electrode embody preferable Hydrogen Evolution Performance, and graphite fibre brush electrode can
The current value for reaching more negative sense shows there is better hydrogen-producing characteristic.
Embodiment 6
Referring to Fig. 6, to -0.4V vs.Ag/AgCl corresponding quality of two kinds of body phase electrodes under catalyst difference carrying capacity
Current density has carried out comparative analysis, is concluded that the promotion with catalyst loading, and current density first increases to drop afterwards
It is low, present higher catalyst loadings and stronger Hydrogen Evolution Performance.
Embodiment 7 carries out the anti-of water electrolysis hydrogen production using the body phase liberation of hydrogen catalysis electrode of embodiment 1 or 2 or 3 referring to fig. 2
Answer device, including anode flow deflector 8 including reactor cylindrical case 6, electrolytic cell circular top end plate 7 and electrolytic cell circular base end plate
5；Anode 12 is provided in reactor cylindrical case 6, which is tubular, and the outer surface of anode 12 is provided with anode-catalyzed
Agent；The inside of anode 12 is provided with proton exchange membrane 13；The proton exchange membrane 13 is tubular, and reactor is divided into cathode cavity
Room and anode chamber, cathode chamber are located on the inside of anode chamber, are provided with body phase liberation of hydrogen catalysis electrode in cathode chamber；Cathode cavity
The bottom and top of room are respectively arranged with cathode inlet 3 and cathode liquid outlet 11；The bottom and top of anode chamber are set respectively
It is equipped with anode inlet 4 and anode liquid outlet 10；Body phase liberation of hydrogen catalysis electrode is connect with anode 12 by electrolytic cell power supply 9；Institute
Stating body phase liberation of hydrogen catalysis electrode and using titanium silk 1 as the supporter of carbon fiber, is made using carbon fiber 2 as base material
Body phase carbon fiber brush electrode, and the growth inside of body phase carbon fiber brush electrode has vertical nanowires to insert flaky molybdenum disulfide catalysis
Agent；The molybdenum disulfide catalyst is with four thio ammonium molybdate ((NH4)2MoS4) it is used as presoma, with dimethylformamide (DMF)
It is obtained as dispersing agent, and by solvent thermal reaction.Cathode liquid outlet 11 connects gas collector when producing hydrogen.
The working principle of this example is: the present invention separates yin-yang the two poles of the earth with proton exchange membrane.Cathode is using body phase liberation of hydrogen electricity
Pole, anode outer surface are provided with commercial oxidation iridium catalyst, and supporting electrolyte is dilute sulfuric acid.When electrolyte is from anode inlet
Into later, oxidation reaction occurs in anode catalyst surface, is oxygen and hydrogen ion and electronics by the water electrolysis in electrolyte,
Hydrogen ion reaches cathode surface across proton exchange membrane, then by diffusion, and in conjunction with the electronics that external circuit comes, occurs also
Original reaction is to generate hydrogen.The reaction that anode and cathode occurs is as follows:
Anode reaction:
H2O→1/2O2+2H++2e-
Cathode reaction:
2H++2e-→H2
Electrolyte of the invention is slowly introducing by cylindrical anode chamber lower portion, and oxygen occurs after anode catalyst surface
Change reaction, after hydrogen ion passes through round proton exchange membrane, reduction reaction occur to generate hydrogen on body phase hydrogen-precipitating electrode surface,
And then form complete electrolyte loop.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (4)
1. the preparation method of the body phase hydrogen-precipitating electrode for water electrolysis hydrogen production, it is characterised in that: the following steps are included:
One, it the preparation of carbon fiber brush: using carbon fiber as base material, and using titanium silk as the supporter of carbon fiber, is made
Body phase carbon fiber brush electrode；
Two, catalyst growth:
1. electrode pre-processes: the body phase carbon fiber brush electrode prepared successively being carried out with acetone, ethyl alcohol, deionized water ultrasonic clear
It washes；
2. solvent thermal reaction: after four thio ammonium molybdate is mixed with dimethylformamide, being put into hydrothermal reaction kettle, then will
Pretreated body phase carbon fiber brush electrode is transferred in hydrothermal reaction kettle, and carries out solvent heat under the conditions of 1 (8) 0 DEG C~200 DEG C
Reaction obtains the body phase liberation of hydrogen catalysis electrode that there are vertical nanowires to insert flaky molybdenum disulfide structure after reaction.
2. the preparation method of the body phase hydrogen-precipitating electrode according to claim 1 for water electrolysis hydrogen production, it is characterised in that: institute
Stating carbon fiber is carbon cloth, graphite fibre silk or polymer fiber silk.
3. carrying out the reactor of water electrolysis hydrogen production, including reactor cylindrical case (6), electrolytic cell using body phase liberation of hydrogen catalysis electrode
Circular top end plate (7) and electrolytic cell circular base end plate (5)；Anode (12) are provided in reactor cylindrical case (6), feature exists
In: the anode (12) is tubular, and the outer surface of anode (12) is provided with anode catalyst；Anode is provided with proton on the inside of (12)
Exchange membrane (13)；The proton exchange membrane (13) is tubular, and reactor is divided into cathode chamber and anode chamber, cathode chamber
On the inside of anode chamber, body phase liberation of hydrogen catalysis electrode is provided in cathode chamber；The bottom and top of cathode chamber are set respectively
It is equipped with cathode inlet (3) and cathode liquid outlet (11)；The bottom and top of anode chamber are respectively arranged with anode inlet (4)
With anode liquid outlet (10)；Body phase liberation of hydrogen catalysis electrode is connect with anode (12) by electrolytic cell power supply (9)；The body phase liberation of hydrogen
Catalysis electrode is that and using titanium silk as the supporter of carbon fiber, body phase carbon fiber brush is made using carbon fiber as base material
Electrode, and the growth inside of body phase carbon fiber brush electrode has vertical nanowires inserted sheet shape molybdenum disulfide catalyst；The molybdenum disulfide
Catalyst is using dimethylformamide as dispersing agent, and to be obtained using four thio ammonium molybdate as presoma by solvent thermal reaction
It arrives.
4. the reactor according to claim 3 for being carried out water electrolysis hydrogen production using body phase liberation of hydrogen catalysis electrode, feature are existed
In: the carbon fiber is carbon cloth, graphite fibre silk or polymer fiber silk.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111926045A (en) * | 2020-08-20 | 2020-11-13 | 重庆大学 | Electrochemical reactor and method for preparing methane by utilizing organic solid waste anaerobic fermentation |
| WO2021000662A1 (en) * | 2019-07-03 | 2021-01-07 | 浙江大学 | Ultrasound-electrode-nano-porous membrane coupled hydrogen preparation sterilization system |
| CN112237933A (en) * | 2020-10-19 | 2021-01-19 | 重庆大学 | Method for preparing Co-P-B/foamed nickel catalyst bed for preparing hydrogen by hydrolyzing sodium borohydride |
| WO2023174768A1 (en) | 2022-03-18 | 2023-09-21 | IFP Energies Nouvelles | Catalytic material based on a group vib element and a group ivb element for the production of hydrogen by electrolysis of water |
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| US11985993B2 (en) | 2019-07-03 | 2024-05-21 | Zhejiang University | Ultrasound-electrode-nano-porous membrane coupling hydrogen production and sterilization system |
| CN111926045A (en) * | 2020-08-20 | 2020-11-13 | 重庆大学 | Electrochemical reactor and method for preparing methane by utilizing organic solid waste anaerobic fermentation |
| CN111926045B (en) * | 2020-08-20 | 2023-01-31 | 重庆大学 | Electrochemical reactor and method for preparing methane by utilizing organic solid waste anaerobic fermentation |
| CN112237933A (en) * | 2020-10-19 | 2021-01-19 | 重庆大学 | Method for preparing Co-P-B/foamed nickel catalyst bed for preparing hydrogen by hydrolyzing sodium borohydride |
| WO2023174768A1 (en) | 2022-03-18 | 2023-09-21 | IFP Energies Nouvelles | Catalytic material based on a group vib element and a group ivb element for the production of hydrogen by electrolysis of water |
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