CN108914154A - A kind of load has efficient hydrogen-precipitating electrode of the Ni-S of Co-OH and preparation method thereof - Google Patents
A kind of load has efficient hydrogen-precipitating electrode of the Ni-S of Co-OH and preparation method thereof Download PDFInfo
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- CN108914154A CN108914154A CN201810734292.XA CN201810734292A CN108914154A CN 108914154 A CN108914154 A CN 108914154A CN 201810734292 A CN201810734292 A CN 201810734292A CN 108914154 A CN108914154 A CN 108914154A
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- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
- C25B11/051—Electrodes formed of electrocatalysts on a substrate or carrier
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
- C25B1/04—Hydrogen or oxygen by electrolysis of water
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/02—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form
- C25B11/03—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form perforated or foraminous
- C25B11/031—Porous electrodes
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
- C25B11/051—Electrodes formed of electrocatalysts on a substrate or carrier
- C25B11/073—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material
- C25B11/091—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material consisting of at least one catalytic element and at least one catalytic compound; consisting of two or more catalytic elements or catalytic compounds
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Abstract
The present invention relates to a kind of efficient hydrogen-precipitating electrodes of Ni-S and preparation method thereof for loading and having Co-OH, conducting base is pre-processed first, then Ni-S nanometer sheet middle layer is gone up from growth on pretreated conducting base by hydro-thermal method, then the Co-OH nano particle in electro-deposition in Ni-S nanometer sheet middle layer.Due to the synergistic effect of this kind of multi-grade nanostructure, the redistribution of charge occurs on two kinds of material interfaces, to obtain more reactivity sites and smaller electron transmission resistance, the electrode material of formation has outstanding Hydrogen Evolution Performance, and keeps stablizing in the electrolysis time for being more than 48h.The method of the present invention is easy to operate, low production cost.Using prepared by this method at catalytic activity for hydrogen evolution electrode, can be widely applied to alkaline water electrolytic industry.
Description
Technical field
The invention belongs to hydrogen preparation field, it is related to a kind of hydrogen-precipitating electrode and preparation method thereof, and in particular to a kind of load
There is efficient hydrogen-precipitating electrode of the Ni-S of Co-OH and preparation method thereof.
Background technique
The substance that the energy depends on for existence and improves as human society has important in the production social life of the mankind
Effect.With the development of economy and society, the mankind will be increasing along with movable increase is produced for the demand of the energy,
Thus also can be increasingly severe with the growth of demand the problem of adjoint energy shortage, how efficiently to provide the energy will
It can be a major issue of future social development.Hydrogen Energy because its big with resourceful, combustion heat value, burning product without
Evil has the characteristics that reproducibility, is considered as novel, ideal energy carrier by people.
The method of production Hydrogen Energy mainly includes fossil fuel reforming hydrogen manufacturing, thermal decomposition hydrogen manufacturing, photocatalysis hydrogen production, biology at present
Hydrogen manufacturing and water electrolysis hydrogen producing.And it is high using the hydrogen purity that Water electrolysis hydrogen production method is prepared, and this method has operation spirit
Living, the advantages that production capacity adjustability is big, raw material easily takes, to become the important means for realizing large-scale production hydrogen.
Improved direction required for alkaline water electrolytic is mainly expense needed for reducing energy consumption, reducing starting and maintenance, is increased
Strong reliability, durability and safety, wherein reducing energy consumption is to improve the most important thing of alkaline water electrolytic technology, impedance is main
It is：Electronic resistance, electrode reaction resistance and transfer impedance.Evolving hydrogen reaction is an important ring for alkaline water electrolytic technology, is one
A irreversible electrochemical reaction of height, higher overpotential cause energy consumption larger, thus improve anode catalytic performance for
The current efficiency for improving entire water electrolysis system has important facilitation.Lower overpotential can in water electrolysis process
Reduce tank voltage, reduces energy consumption, improves current efficiency.Therefore the electrode for preparing high activity is to improve alkaline water electrolytic technique
One important directions.
In actual industrial application, the service life and water electrolysis energy consumption of electrode material are whether evaluation electrode performance is excellent
Good key, the electrode of a usual excellent performance need to have following requirement：(1) higher mechanically and chemically stable
Property；(2) high conductivity；(3) high surface area；(4) high catalytic activity；(5) economical and easily available.
By the retrieval to patent document, patent document identical with present patent application is not found.
Summary of the invention
The purpose of the present invention is to provide a kind of scientific structure design is reasonable, the load that activity is high, stability is strong has Co-OH
Ni-S efficient hydrogen-precipitating electrode and the method for preparing the electrode.
The present invention solves its technical problem and is achieved through the following technical solutions：
A kind of load has the efficient hydrogen-precipitating electrode of the Ni-S of Co-OH, it is characterised in that：The electrode is using thiocarbamide as sulphur member
Usually source, nickel foam is as nickel element source, and cabaltous nitrate hexahydrate is as cobalt element source, by hydro-thermal method, in conjunction with subsequent
Electro-deposition makes the hydroxide nanoparticles that upper cobalt is deposited in the sulfide nanometer sheet of the self-growing nickel of substrate surface, to make
Standby load out has the efficient hydrogen-precipitating electrode of the Ni-S of Co-OH.
Moreover, the thickness of the nanometer sheet is in 20~30nm, nano-particle diameter is in 5~10nm.
It is a kind of to load the preparation method for having the efficient hydrogen-precipitating electrode of the Ni-S of Co-OH, it is characterised in that：Include the following steps：
(1) pretreatment of conductive substrates：When using nickel foam as substrate, need to carry out oil removal treatment with acetone to it,
Ultrasound impregnates 30min；Then it is removed oxide layer processing with the hydrochloric acid of 3mol/L, ultrasound impregnates 15min；Will treated electricity
Pole is taken out, be successively with dehydrated alcohol and deionized water repeated flushing to pH value respectively it is neutral, put in a vacuum drying oven 60
6h is saved at DEG C；
(2) hydro-thermal prepares Ni-S nanometer sheet middle layer：It is molten with the thiocarbamide configuration presoma of 1.5mmol/L using hydro-thermal method
Liquid, with the nickel foam handled well as substrate together be placed in 25ml polytetrafluoro hydrothermal reaction kettle in, be lauched in 150 DEG C of temperature
Thermal response 5h, takes out electrode after natural cooling, and the residue on its surface of repeated flushing is put in a vacuum drying oven, 60
6h is saved at DEG C obtains Ni-S nanometer sheet middle layer；
(3) electro-deposition prepares Co-OH nano particle：Using electrodeposition process, before the cabaltous nitrate hexahydrate of 0.1mmol is configured
Liquid solution is driven, by 0.1 mole every liter of cabaltous nitrate hexahydrate precursor solution, among the Ni-S nanometer sheet obtained with step (2)
Layer is electrode material, and constant current electro-deposition is used under electrochemical workstation, the electro-deposition 500 in the case where cathode current is 10mAcm-2
Second, then its surface residue is rinsed well, load is obtained after keeping the temperature 6 hours at 60 DEG C of vacuum oven Co-OH
The efficient hydrogen-precipitating electrode of Ni-S.
Moreover, the step (1), (2), in (3), used chemical reagent is analysis level, and using preceding without appointing
Where reason.
Moreover, the electrochemical workstation selects the electrochemical workstation of model occasion China CHI-660E.
Moreover, the mass percent of nickel element is Ni in the nickel foam --- 32.26%~54.67%；The thiocarbamide
The mass percent of middle element sulphur is S --- 22.56%~34.78%；The quality hundred of cobalt element in the cabaltous nitrate hexahydrate
Score is Co --- 27.68%~34.92%.
The advantages of the present invention are：
1, this load has efficient hydrogen-precipitating electrode of the Ni-S of Co-OH and preparation method thereof, and the electrode specific surface area of preparation is big, urges
It is high to change hydrogen evolution activity.The method forms composite construction, introduces size on the basis of middle layer nanometer sheet by secondary hydro-thermal
Very small nano particle effectively increases the specific surface area of electrode, provides more reaction active sites for evolving hydrogen reaction
Point.In addition, d electronics synergistic effect can occur due to electronic structure for cobalt, molybdenum element, this makes the meeting of Ni element and Co one
Determine to generate synergic catalytic effect in degree, further improves the catalytic hydrogen evolution activity of electrode.
2, this load has efficient hydrogen-precipitating electrode of the Ni-S of Co-OH and preparation method thereof, and obtained electrode stability is preferable.
The introducing of middle layer can make Ni-S nanometer sheet and matrix have stronger binding force, enhance the adhesive ability of electrode catalytic materials.
In the present invention simultaneously, it introduces Co-OH nano particle and is coated, to prevent Catalytic Layer during evolving hydrogen reaction
Obscission greatly improves the stability of electrode.
3, this load has efficient hydrogen-precipitating electrode of the Ni-S of Co-OH and preparation method thereof, and obtained electrode conductivuty is good.This
The introducing of multi-grade composite construction in invention makes conduction of velocity of the electronics in electrode material obtain effective raising, thus
Improve its electric conductivity.
4, the design of the invention is scientific and reasonable, has the advantages that catalytic hydrogen evolution activity is high, stability is strong, electric conductivity is good, is
A kind of load with higher innovation has efficient hydrogen-precipitating electrode of the Ni-S of Co-OH and preparation method thereof.
Detailed description of the invention
Fig. 1 is the scanning electron microscopic picture of electrode Ni-S middle layer prepared by the embodiment of the present invention 1；
Fig. 2 is the scanning electron microscopic picture for the Ni-S electrode outer layer that load prepared by the embodiment of the present invention 1 has Co-OH；
Fig. 3 is the polarization of electrode curve of electrode prepared by the embodiment of the present invention 1 and naked nickel foam；Test method is linear
Potential scan method, test condition：Three-electrode system, prepared electrode are working electrode, and Hg/HgO is reference electrode, supplemented by platinized platinum
Electrode is helped, electrolyte uses the KOH solution of mass concentration 1mol/L, sweep speed 1mVs-1, scanning range 0.05V
To -0.45V (relative to standard hydrogen electrode)；
Fig. 4 is the time-measuring electric potential curve graph of prepared electrode in the embodiment of the present invention 1；Test condition：Keep overpotential-
200mVvs.RHE, continued electrolysis time are 48h；
Fig. 5 is the electrochemical impedance spectroscopy (EIS) of electrode prepared by the embodiment of the present invention 1, using three-electrode system in 1mol/
It is measured in the KOH solution of L, measurement range is 100KHz to 0.01Hz.
Fig. 6 is polarization of electrode curve graph prepared by the embodiment of the present invention 1, still using three-electrode system 1mol/L's
It is measured in KOH solution, sweep speed 1mVs-1, scanning range is 0.05V to -0.45V (corresponding standard hydrogen electrode).
Specific embodiment
Below by specific embodiment, the invention will be further described, and it is not limit that following embodiment, which is descriptive,
Qualitatively, this does not limit the scope of protection of the present invention.
Embodiment 1
A kind of to load the preparation method for having the efficient hydrogen-precipitating electrode of the Ni-S of Co-OH, innovation is：Including following step
Suddenly：
(1) pretreatment of conductive substrates：
Choose the nickel foam for the 1 × 4cm size cut out；It is completely soaked with the acetone of 100ml, sonic oscillation
30min is to remove remaining grease stain in nickel foam finishing process；By the deionized water repeated flushing of the nickel foam after immersion
Completely it is placed on prepared 150ml, in the HCl of 3mol/L, sonic oscillation 15min, to remove nickel foam surface oxide layer；Most
Afterwards, nickel foam is taken out from solution, is successively cleaned repeatedly up to PH=7 with dehydrated alcohol and deionized water, then place it in
Vacuum drying preservation is carried out in vacuum oven, to prevent it by secondary oxidation, gives over to subsequent use；
(2) hydro-thermal method prepares Ni-S nanometer sheet middle layer：
Using hydro-thermal method, it is configured to precursor solution with the thiocarbamide of 1.5mmol, stirs evenly simultaneously sonic oscillation 30min, with
The nickel foam handled well is placed in together in the polytetrafluoro hydrothermal reaction kettle of 25ml；It is anti-with 150 DEG C of condition hydro-thermal in drying box
5h is answered, takes out electrode after reaction kettle naturally cools to room temperature, after electrode surface residue is rinsed well, in vacuum oven
Ni-S nanometer sheet middle layer is obtained after keeping the temperature 6 hours at 60 DEG C；
(3) secondary water hot preparation Co-OH Catalytic Layer：
After obtaining the Ni-S nanometer sheet middle layer of step (2) process preparation, using electrodeposition process, by 0.1 mole every liter
Cabaltous nitrate hexahydrate precursor solution, the Ni-S nanometer sheet middle layer obtained using step (2) is electrode material, in occasion China CHI-
Constant current electro-deposition is used under 660E electrochemical workstation, in the case where cathode current is 10mAcm-2 electro-deposition 500 seconds, then by it
Surface residue is rinsed well, and the Ni-S liberation of hydrogen electricity that load has Co-OH is obtained after keeping the temperature 6 hours at 60 DEG C of vacuum oven
Pole；
(4) load has the apparent form of the Ni-S combination electrode of Co-OH：
Using S-4800 type environmental scanning electron microscope to the Ni-S nanometer sheet prepared and the shape of Co-OH combination electrode
Looks are observed, and it is as shown in Figure 1, 2 to obtain scanning electron microscope (SEM) photo.
(5) load has the Hydrogen Evolution Performance test of the Ni-S combination electrode of Co-OH：
There is the Ni-S combination electrode of Co-OH to naked nickel foam and obtained load using the test method of linear potential sweep
It is tested for the property.Using three-electrode system, prepared electrode is working electrode, and Hg/HgO is reference electrode, and platinized platinum is auxiliary
Electrode, electrolyte use the KOH solution of mass concentration 1mol/L, sweep speed 1mVs-1, scanning range 0V to -0.3V
(relative to standard hydrogen electrode).(production of Chinese Shanghai Chen Hua company) tests its analysis on occasion China CHI660E electrochemical workstation
Hydrogen performance, test result corresponding diagram 3.
(6) load has the stability test of the Ni-S combination electrode of Co-OH：
Using three-electrode system, prepared electrode is working electrode, and Hg/HgO is reference electrode, and platinized platinum is auxiliary electrode,
Electrolyte uses the KOH solution of mass concentration 1mol/L, (CHI660E, Chinese Shanghai the Chen Hua company on electrochemical workstation
Produce) it is tested in 200mAcm-2Time-measuring electric potential curve graph under electric current, so that its stability is measured, test result corresponding diagram 4.
(7) load has the electric conductivity test of the Ni-S combination electrode of Co-OH：
Using three-electrode system, prepared electrode is working electrode, and Hg/HgO is reference electrode, and platinized platinum is auxiliary electrode,
Electrolyte uses the KOH solution of mass concentration 1mol/L, (the CHI660E, in China on occasion China CHI660E electrochemical workstation
Hai Chenhua company produces) use the amplitude of 5mV measuring process (4) institute in the frequency range of 100KHz to 0.01Hz under open-circuit voltage
The electrochemical impedance spectroscopy (EIS) of electrode and naked nickel foam is obtained, for characterizing its electric conductivity.Test result corresponding diagram 5.
Embodiment 2
A kind of to load the preparation method for having the efficient hydrogen-precipitating electrode of the Ni-S of Co-OH, innovation is：Including following step
Suddenly：
(1) step (1) is the same as the step (1) in embodiment 1；
(2) hydro-thermal method prepares Ni-S nanometer sheet middle layer：
Using hydro-thermal method, it is configured to precursor solution with the thiocarbamide of 1.8mmol, stirs evenly simultaneously sonic oscillation 40min, with
The nickel foam handled well is placed in together in the polytetrafluoro hydrothermal reaction kettle of 25ml；It is anti-with 160 DEG C of condition hydro-thermal in drying box
6h is answered, takes out electrode after reaction kettle naturally cools to room temperature, after electrode surface residue is rinsed well, in vacuum oven
Ni-S nanometer sheet middle layer is obtained after keeping the temperature 8 hours at 60 DEG C；
(3) secondary water hot preparation Co-OH Catalytic Layer：
After obtaining the Ni-S nanometer sheet middle layer of step (2) process preparation, using electrodeposition process, by 0.15 mole every liter
Cabaltous nitrate hexahydrate precursor solution, using Ni-S nanometer sheet middle layer obtained in step (2) as electrode material, in occasion China CHI-
Constant current electro-deposition is used under 660E electrochemical workstation, is 12mAcm in cathode current-2Lower electro-deposition 400 seconds, then by it
Surface residue is rinsed well, and the Ni-S liberation of hydrogen electricity that load has Co-OH is obtained after keeping the temperature 8 hours at 60 DEG C of vacuum oven
Pole；
(4) load has the Hydrogen Evolution Performance test of the Ni-S combination electrode of Co-OH：
There is the Ni-S of Co-OH to the load of industrial foam nickel electrode and preparation using the test method of linear potential sweep
Combination electrode is tested for the property.Using three-electrode system, prepared electrode is working electrode, and Hg/HgO is reference electrode, platinum
Piece is auxiliary electrode, and electrolyte uses the KOH solution of mass concentration 1mol/L, sweep speed 1mVs-1, and scanning range is
0.05V is extremely -0.45V (corresponding standard hydrogen electrode).(Chinese Shanghai Chen Hua company) tests on CHI660E electrochemical workstation
Its Hydrogen Evolution Performance, test result corresponding diagram 6.
(from upper Ni-S nanometer sheet is grown on pretreated conducting base, then due to this multi-grade nanostructure
The Co-OH nano particle in electro-deposition in Ni-S nanometer sheet) synergistic effect, two kinds of materials (a kind of Ni-S nanometer sheet material,
A kind of Co-OH nano-particle material) redistribution of charge occurs on interface, thus obtain more reactivity sites and
The electrode material of smaller electron transmission resistance, formation has outstanding Hydrogen Evolution Performance, and protects in the electrolysis time for being more than 48h
It is fixed to keep steady.
Although above in conjunction with attached drawing, invention has been described, and the invention is not limited to above-mentioned specific implementations
Mode, the above mentioned embodiment is only schematical, be not it is restrictive, those skilled in the art this
Under the enlightenment of invention, without breaking away from the scope protected by the purposes and claims of the present invention, many shapes can also be made
Formula, within these are all belonged to the scope of protection of the present invention.
Claims (10)
1. a kind of load has the efficient hydrogen-precipitating electrode of the Ni-S of Co-OH, it is characterised in that：The electrode is using thiocarbamide as element sulphur
Source, nickel foam is as nickel element source, and cabaltous nitrate hexahydrate is as cobalt element source, by hydro-thermal method, in conjunction with subsequent electricity
Deposition makes the hydroxide nanoparticles that upper cobalt is deposited in the sulfide nanometer sheet of the self-growing nickel of substrate surface, to prepare
Load has the efficient hydrogen-precipitating electrode of the Ni-S of Co-OH out.
2. a kind of load according to claim 1 has the preparation method of the efficient hydrogen-precipitating electrode of the Ni-S of Co-OH, feature exists
In：Include the following steps：
(1) pretreatment of conductive substrates；
(2) hydro-thermal prepares Ni-S nanometer sheet middle layer；
(3) electro-deposition prepares Co-OH nano particle.
3. a kind of load according to claim 2 has the preparation method of the efficient hydrogen-precipitating electrode of the Ni-S of Co-OH, feature exists
In：The concrete operations of the step (1) are：It when using nickel foam as substrate, needs to carry out oil removal treatment with acetone to it, surpass
Sound impregnates 30min；Then it is removed oxide layer processing with hydrochloric acid, ultrasound impregnates 15min；By treated, electrode is taken out, point
Successively be not with dehydrated alcohol and deionized water repeated flushing to pH value it is neutral, put and saved at 60 DEG C in a vacuum drying oven
6h。
4. a kind of load according to claim 3 has the preparation method of the efficient hydrogen-precipitating electrode of the Ni-S of Co-OH, feature exists
In：The hydrochloric acid is the dilute hydrochloric acid for the 3mol/L being configured to water and concentrated hydrochloric acid.
5. a kind of load according to claim 2 has the preparation method of the efficient hydrogen-precipitating electrode of the Ni-S of Co-OH, feature exists
In：The concrete operations of the step (2) are：Using hydro-thermal method, precursor solution is configured with the thiocarbamide of 1.5mmol/L, with processing
Good nickel foam is placed in together in the polytetrafluoro hydrothermal reaction kettle of 25ml as substrate, in 150 DEG C of at a temperature of hydro-thermal reaction 5h,
Electrode is taken out after natural cooling, the residue on its surface of repeated flushing, puts in a vacuum drying oven, save 6h at 60 DEG C
Obtain Ni-S nanometer sheet middle layer.
6. a kind of load according to claim 2 has the preparation method of the efficient hydrogen-precipitating electrode of the Ni-S of Co-OH, feature exists
In：The concrete operations of the step (3) are：It is using electrodeposition process, the cabaltous nitrate hexahydrate configuration presoma of 0.1mmol is molten
0.1 mole every liter of cabaltous nitrate hexahydrate precursor solution is electricity with the Ni-S nanometer sheet middle layer that step (2) obtains by liquid
Pole material uses constant current electro-deposition under electrochemical workstation, in the case where cathode current is 10mAcm-2 electro-deposition 500 seconds, so
Its surface residue is rinsed well afterwards, the Ni-S that load has Co-OH is obtained after keeping the temperature 6 hours at 60 DEG C of vacuum oven
Efficient hydrogen-precipitating electrode.
7. a kind of load according to claim 2 has the preparation method of the efficient hydrogen-precipitating electrode of the Ni-S of Co-OH, feature exists
In：Ni-S nanometer sheet middle layer with a thickness of 20~30nm, the partial size of Co-OH nano particle is 5~10nm.
8. a kind of load according to claim 3 or 5 or 6 has the preparation method of the efficient hydrogen-precipitating electrode of the Ni-S of Co-OH,
It is characterized in that：In the step (1) or (2) or (3), used chemical reagent is analysis level, and using preceding without any
Processing.
9. a kind of load according to claim 6 has the preparation method of the efficient hydrogen-precipitating electrode of the Ni-S of Co-OH, feature exists
In：The electrochemical workstation selects the electrochemical workstation of model occasion China CHI-660E.
10. a kind of load according to claim 3 or 5 or 6 has the preparation method of the efficient hydrogen-precipitating electrode of the Ni-S of Co-OH,
It is characterized in that：The mass percent of nickel element is Ni in the nickel foam --- 32.26%~54.67%；In the thiocarbamide
The mass percent of element sulphur is S --- 22.56%~34.78%；The quality percentage of cobalt element in the cabaltous nitrate hexahydrate
Number is Co --- 27.68%~34.92%.
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| CN110129825A (en) * | 2019-05-23 | 2019-08-16 | 天津市大陆制氢设备有限公司 | A kind of efficient Ni/Ni (OH)2Hydrogen-precipitating electrode and preparation method thereof |
| CN110828192A (en) * | 2019-11-14 | 2020-02-21 | 南京理工大学 | Self-supporting high-rate performance electrode based on foamed nickel and preparation method thereof |
| CN110983373A (en) * | 2019-11-05 | 2020-04-10 | 江苏大学 | Supported composite sulfide hydrogen evolution catalyst and preparation method and application thereof |
| CN111266122A (en) * | 2018-12-04 | 2020-06-12 | 中国科学院上海硅酸盐研究所 | Surface modified Co (OH)xNanoparticle CoP nanosheet hydrogen evolution reaction catalyst and preparation method thereof |
| CN113957468A (en) * | 2021-07-28 | 2022-01-21 | 上海应用技术大学 | Ni3S2@ CoO-NF composite material and synthesis method and application thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111266122A (en) * | 2018-12-04 | 2020-06-12 | 中国科学院上海硅酸盐研究所 | Surface modified Co (OH)xNanoparticle CoP nanosheet hydrogen evolution reaction catalyst and preparation method thereof |
| CN110129825A (en) * | 2019-05-23 | 2019-08-16 | 天津市大陆制氢设备有限公司 | A kind of efficient Ni/Ni (OH)2Hydrogen-precipitating electrode and preparation method thereof |
| CN110129825B (en) * | 2019-05-23 | 2022-02-01 | 天津市大陆制氢设备有限公司 | High-efficiency Ni/Ni (OH)2Hydrogen evolution electrode and preparation method thereof |
| CN110983373A (en) * | 2019-11-05 | 2020-04-10 | 江苏大学 | Supported composite sulfide hydrogen evolution catalyst and preparation method and application thereof |
| CN110828192A (en) * | 2019-11-14 | 2020-02-21 | 南京理工大学 | Self-supporting high-rate performance electrode based on foamed nickel and preparation method thereof |
| CN113957468A (en) * | 2021-07-28 | 2022-01-21 | 上海应用技术大学 | Ni3S2@ CoO-NF composite material and synthesis method and application thereof |
| CN113957468B (en) * | 2021-07-28 | 2023-11-24 | 上海应用技术大学 | Ni (nickel) 3 S 2 @CoO-NF composite material and synthetic method and application thereof |
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