CN112921335B - Preparation method of molybdenum disulfide-doped metal matrix self-supporting electrode - Google Patents
Preparation method of molybdenum disulfide-doped metal matrix self-supporting electrode Download PDFInfo
- Publication number
- CN112921335B CN112921335B CN202011609349.7A CN202011609349A CN112921335B CN 112921335 B CN112921335 B CN 112921335B CN 202011609349 A CN202011609349 A CN 202011609349A CN 112921335 B CN112921335 B CN 112921335B
- Authority
- CN
- China
- Prior art keywords
- molybdenum disulfide
- powder
- metal matrix
- supporting electrode
- mixed
- 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.)
- Active
Links
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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/16—Metallic particles coated with a non-metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/11—Making porous workpieces or articles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Abstract
The invention relates to a preparation method of a molybdenum disulfide-doped metal matrix self-supporting electrode, which comprises the steps of fully dissolving sodium molybdate and thioacetamide in water, adding metal powder, carrying out hydrothermal reaction to generate catalytic phase molybdenum disulfide on the surface of metal powder particles in situ, and then sintering to form a porous loose metal plate, wherein the catalytic phase molybdenum disulfide is uniformly doped in the metal plate. The invention adopts a combined method of powder metallurgy and hydrothermal synthesis, has lower cost, more convenient operation and stronger applicability, and the prepared electrode has higher catalytic activity and good conductivity, has certain mechanical property and processability, can be used as a catalyst and a current collector, particularly can be directly used as an electrode for catalyzing water decomposition, and has wide scale industrial production and application prospect.
Description
Technical Field
The invention relates to the technical field of catalytic material preparation, in particular to a preparation method of a molybdenum disulfide-doped metal matrix self-supporting electrode, and belongs to a technical application of preparing a catalytic material by a powder metallurgy method.
Background
In order to develop clean new energy, countries around the world are trying to replace fossil energy by local conditions, such as solar energy, nuclear energy, wind energy, geothermal energy, tidal energy, and hydrogen energy, which is considered to be the most promising clean energy source and is receiving attention. In the research of hydrogen energy preparation, hydrogen production by water electrolysis, hydrogen production by biomass, hydrogen production by solar energy and the like are reported in a large number of documents. The water decomposition hydrogen production is the oldest and the most mature production technology, but the water decomposition hydrogen production needs to add a catalyst to improve the efficiency of chemical reaction. At present, precious metal materials such as platinum and the like have the best catalytic activity, and the high cost seriously restricts the industrial process of hydrogen production by water decomposition, so that the development of a low-cost non-precious metal catalyst has important significance.
The molybdenum disulfide has a d electronic structure similar to that of noble metals (such as platinum), is beneficial to adsorption and desorption of hydrogen atoms, has higher catalytic activity on hydrogen evolution reaction and the like, and has wide application prospect in the field of new energy development. However, molybdenum disulfide is a semiconductor material, and the inherent poor conductivity of molybdenum disulfide is one of the main reasons for limiting the improvement of catalytic activity. Therefore, although various improved processes focus on regulating the morphology, phase, crystal growth direction and the like of the molybdenum disulfide, the industrial application of the molybdenum disulfide still has a long way to go. The molybdenum disulfide is loaded on the metal substrate, which is one of effective means for improving the conductivity of the metal substrate, and the formed composite material can be directly used as a support electrode to be applied to electrocatalytic water decomposition hydrogen production. However, the reported molybdenum disulfide-loaded metal-based self-supporting material generally has the problems of insufficient mechanical properties, high cost, difficult processing and the like, and directly restricts the industrial application of the molybdenum disulfide-loaded metal-based self-supporting material.
Disclosure of Invention
In order to solve the technical problems, the invention provides a preparation method of a molybdenum disulfide-doped metal matrix self-supporting electrode, which has the advantages of simple steps, low raw material cost and controllable process, and the prepared finished electrode has stable catalytic activity and good conductivity, can be machined to form parts with various shapes to a certain extent so as to be suitable for various water decomposition hydrogen analysis equipment, and is expected to realize large-scale production.
The invention provides a preparation method of a molybdenum disulfide-doped metal matrix self-supporting electrode, which comprises the following steps:
the method comprises the following steps: selecting an adaptive graphite die according to the required size of a final product, and weighing a certain amount of metal powder for later use;
step two, weighing sodium molybdate and thioacetamide, dissolving the sodium molybdate and the thioacetamide in distilled water, and fully stirring to form a mixed solution A for later use;
and step three, slowly pouring the metal powder in the step one into the mixed liquid A in the step two, fully stirring and mixing to obtain a mixed system, and repeatedly stirring the obtained mixed system to fully mix.
Step four, transferring all the mixed system in the step three to a polytetrafluoroethylene lining of a stainless steel hydrothermal kettle, sealing the hydrothermal kettle, and placing the hydrothermal kettle into a drying box for hydrothermal reaction;
step five, after the hydrothermal reaction in the step four is finished, collecting mixed powder in the polytetrafluoroethylene lining, washing the mixed powder with distilled water for 3-5 times, then washing the mixed powder with alcohol for 1-2 times, and then putting the mixed powder into a vacuum drying oven for drying;
and step six, filling the mixed powder obtained after drying in the step five into the graphite mould in the step one, placing the graphite mould into a discharge plasma sintering furnace for sintering treatment, and obtaining a final product, namely the molybdenum disulfide-doped metal matrix self-supporting electrode after sintering.
Preferably, in the step one, the selected metal powder can be one or a quantitative mixture of two or more of nickel powder, molybdenum powder, tungsten powder and iron powder.
Preferably, in the second step, the molar ratio of sodium molybdate to thioacetamide is 1: 3-5, and controlling the concentration of sodium molybdate in the mixed liquid A to be 0.01-0.05 mol/L.
Preferably, in the fourth step, the temperature of the hydrothermal reaction is 180-200 ℃, and the reaction time is 6-12 hours.
Preferably, in the fifth step, the temperature of the vacuum drying oven is 60-80 ℃, and the drying time is 12-24 hours.
Preferably, in the sixth step, the sintering temperature of the discharge plasma sintering furnace is 800-1800 ℃, and the heating rate is 50-100 ℃/min.
Preferably, the obtained molybdenum disulfide-doped metal matrix self-supporting electrode is used for catalyzing water decomposition to prepare hydrogen.
Furthermore, the main body of the catalytic phase of the molybdenum sulfide doped metal matrix self-supporting electrode obtained by the invention is molybdenum disulfide, but other substances with catalytic properties (such as tungsten sulfide, nickel sulfide, cobalt sulfide and the like) can be loaded on the metal matrix by the method provided by the invention to prepare the electrode material with catalytic properties.
The reaction principle of the invention is as follows: fully dissolving sodium molybdate and thioacetamide in water, adding metal powder, carrying out hydrothermal reaction on the surfaces of metal powder particles to generate molybdenum disulfide in situ, then sintering to form a porous and loose metal plate, and uniformly doping catalytic phase molybdenum disulfide in the metal plate.
According to the invention, in the preparation process, through temperature control, concentration control, high-temperature sintering and the like, the obtained metal electrode plate has a porous and loose microstructure, so that more sites for attaching catalysts are provided, the contact area between the electrode plate and electrolyte can be greatly increased, and the catalytic reaction can be carried out more fully. In addition, the porous and loose microstructure can enable the products of water decomposition, namely hydrogen and oxygen, to easily escape from the pores of the electrode plate, thereby further optimizing the catalytic efficiency of the electrode material.
The preparation process adopts a combined method of powder metallurgy and hydrothermal synthesis, and has the advantages of lower cost, more convenient operation and stronger applicability compared with the existing smelting method and wet chemical method. The prepared molybdenum disulfide-doped metal matrix self-supporting electrode has high catalytic activity, good conductivity and certain mechanical property and processability, can be used as a catalyst and a current collector, can be particularly directly used as an electrode for catalyzing water decomposition to prepare hydrogen, and has wide scale industrial production and application prospects.
Drawings
FIG. 1 is a photograph of a sample of a molybdenum disulfide doped metal matrix self-supporting electrode prepared in example 1;
FIG. 2 is an SEM electron micrograph of a molybdenum disulfide doped metal matrix self-supporting electrode prepared in example 2;
FIG. 3 is an EDS energy spectrum of the molybdenum disulfide doped metal matrix self-supporting electrode prepared in example 2;
FIG. 4 is an SEM electron micrograph of a Mo disulfide doped metal matrix self-supporting electrode prepared in example 3;
figure 5 is a graph of the performance of the electrocatalytic water splitting of the molybdenum disulfide doped metal matrix self-supporting electrode prepared in example 3.
Detailed Description
The technical solution of the present invention will be further explained and explained in detail with reference to the drawings and the specific embodiments.
A preparation method of a molybdenum disulfide-doped metal matrix self-supporting electrode mainly comprises the following steps:
the method comprises the following steps: weighing metal powder according to the required size of a final product, and selecting a proper graphite die for later use;
for example, the volume and shape parameters are determined according to the size of the final product, so that a graphite mold with a proper size is selected, and the mass of the required powder is estimated through the product of the volume and the density.
Step two, weighing a certain amount of sodium molybdate and thioacetamide, dissolving the sodium molybdate and the thioacetamide in distilled water, and fully stirring to form a mixed solution A for later use;
the molar ratio of sodium molybdate to thioacetamide here is 1: 3-5, and controlling the concentration of sodium molybdate in the mixed liquid A to be 0.01-0.05 mol/L. The dosage of sodium molybdate and thioacetamide and the concentration of sodium molybdate need to be strictly controlled, and if the dosage and the concentration are too small, the catalyst material cannot be attached to the surface of the final electrode plate; on the contrary, if the amount and concentration are too much, the catalyst material is stacked and consolidated on the surface of the electrode plate in a large amount, which is not favorable for the efficient release of the catalyst performance.
Step three, slowly pouring the metal powder in the step one into the mixed liquid A in the step two, and fully stirring and mixing to obtain a mixed system;
here, the mixing of the solid powder in the liquid phase may be carried out by completely dispersing the solid powder particles in the solution system using a mixer, a planetary ball mill or the like.
And step four, transferring all the mixed system in the step three to a polytetrafluoroethylene lining of a stainless steel hydrothermal kettle, sealing the hydrothermal kettle, and putting the hydrothermal kettle into a drying box for hydrothermal reaction.
The temperature of the hydrothermal reaction is 180-200 ℃, and the reaction time is 6-12 h. If the temperature of the hydrothermal reaction is too low and the time is too short, the catalyst cannot be fully attached to and grow on the surface of the electrode; if the temperature of the hydrothermal reaction is too high and the time is too long, the shape of the catalyst is not uniform, and the catalytic efficiency is reduced.
And step five, after the hydrothermal reaction in the step four is finished, taking out the mixture in the polytetrafluoroethylene lining, pouring out the supernatant, collecting the mixed powder, washing the mixed powder with distilled water for 3-5 times, then washing the mixed powder with alcohol for 1-2 times, and then putting the mixed powder into a vacuum drying oven for drying.
The temperature of the vacuum drying oven is 60-80 ℃, and the drying time is 12-24 h. Distilled water washing is mainly used for removing residual sodium ions in the hydrothermal process, and alcohol washing is used for accelerating residual water molecules after the previous water washing and effectively dispersing formed particles. The drying temperature and time need to be strictly controlled, and if the temperature is too low, deep water among particles is not easy to remove; on the contrary, if the temperature is too high, the particle surface is easily oxidized, the morphology of the catalyst attached to the surface is damaged, and the effective performance of the catalytic performance is not facilitated.
And step six, filling the mixed powder obtained after drying in the step five into the graphite mould in the step one, placing the mould into a discharge plasma sintering furnace (SPS for short) for sintering treatment, and obtaining a final product, namely the molybdenum disulfide-doped metal matrix self-supporting electrode after sintering.
The SPS sintering temperature is 800-1800 ℃ and the heating rate is 50-100 ℃/min. The temperature and the heating rate need to be strictly controlled, if the temperature is too low, the forming degree is poor, and the pulverization is easy; if the temperature is too high, the density of the formed sample is high, and the sample has no porous structure, so that the adhesion and the function of the catalyst are not favorably exerted. Similarly, the rate of temperature increase also affects the size of the product pores.
Example 1:
(1) 2g of nickel powder is weighed, and a graphite die with the diameter of phi 20 is selected for standby.
(2) Weighing a certain amount of sodium molybdate and thioacetamide, and fully stirring and dissolving the sodium molybdate and the thioacetamide in distilled water to form a mixed solution A for later use. The molar ratio of the sodium molybdate to the thioacetamide is 1: and 3, controlling the concentration of sodium molybdate in the mixed liquid A to be 0.01 mol/L.
(3) Slowly pouring the nickel powder in the step (1) into the mixed liquid A in the step (2), and repeatedly stirring the obtained mixed system to fully mix.
(4) And (4) transferring all the mixed system in the step (3) to a polytetrafluoroethylene lining of a stainless steel hydrothermal kettle, sealing the hydrothermal kettle, and putting the hydrothermal kettle into a drying box for hydrothermal reaction. The temperature of the hydrothermal reaction is 180 ℃, and the reaction time is 6 h.
(5) And (4) after the hydrothermal reaction in the step (4) is finished, collecting mixed powder in the polytetrafluoroethylene lining, washing with distilled water for 3-5 times, washing with alcohol for 1-2 times, and then putting into a vacuum drying oven for drying. The temperature of the drying oven is 60 ℃, and the drying time is 12 h.
(6) And (3) filling the mixed powder obtained in the step (5) into the graphite mould obtained in the step (1), placing the mould into an SPS sintering furnace for sintering treatment, and obtaining a final product, namely the molybdenum disulfide-doped metal matrix self-supporting electrode after sintering. The temperature of the SPS sintering is 800 ℃, and the heating rate is 50 ℃/min.
The finished electrode plate prepared in this example was macroscopically characterized, and the results are shown in fig. 1. As can be seen from fig. 1: the electrode plate product obtained in this example was in the form of a black small disc having a thickness of 2mm and a diameter of 20mm, and had a plurality of "pits" on the surface thereof as seen with naked eyes.
Example 2:
(1) weighing 2g of iron powder and 1g of molybdenum powder, mixing, and selecting a graphite die with the diameter of phi 20 for later use.
(2) Weighing a certain amount of sodium molybdate and thioacetamide, and fully stirring and dissolving the sodium molybdate and the thioacetamide in distilled water to form a mixed solution A for later use. The molar ratio of the sodium molybdate to the thioacetamide is 1: 5, the concentration of sodium molybdate in the mixed liquid A is controlled to be 0.05 mol/L.
(3) Slowly pouring the mixed metal powder in the step (1) into the mixed liquid A in the step (2), and repeatedly stirring the obtained mixed system to fully mix.
(4) And (4) transferring all the mixed system in the step (3) to a polytetrafluoroethylene lining of a stainless steel hydrothermal kettle, sealing the hydrothermal kettle, and putting the hydrothermal kettle into a drying box for hydrothermal reaction. The temperature of the hydrothermal reaction is 200 ℃, and the reaction time is 12 h.
(5) And (4) after the hydrothermal reaction in the step (4) is finished, collecting mixed powder in the polytetrafluoroethylene lining, washing with distilled water for 3-5 times, washing with alcohol for 1-2 times, and then putting into a vacuum drying oven for drying. The temperature of the vacuum drying oven is 80 ℃, and the drying time is 24 h.
(6) And (3) filling the mixed powder obtained in the step (5) into the graphite mould obtained in the step (1), placing the mould into an SPS sintering furnace for sintering treatment, and obtaining a final product, namely the molybdenum disulfide-doped metal matrix self-supporting electrode after sintering. The SPS sintering temperature is 1300 ℃, and the heating rate is 100 ℃/min.
The finished electrode plate prepared in this example was subjected to microscopic characterization, and the results are shown in fig. 2 and fig. 3. As can be seen from fig. 2: the product micro-morphology is that shallow pits with visible internal powder particles are dispersed on the surface of a relatively flat metal substrate, and the particle morphology in the shallow pits is clearly visible. As can be seen from fig. 3: the product prepared in the embodiment is analyzed by EDS energy spectrum, and the main element in the shallow pit is Mo (and S), and the main element of the surrounding matrix is Fe, so that the fact that the molybdenum disulfide serving as the catalytic active phase is uniformly doped between the metal matrixes is proved, and the catalytic activity is contributed to the product multi-element alloy electrode plate of the embodiment.
Example 3:
(1) weighing 2g of molybdenum powder, and selecting a graphite die with the diameter of phi 20 for later use.
(2) Weighing a certain amount of sodium molybdate and thioacetamide, and fully stirring and dissolving the sodium molybdate and the thioacetamide in distilled water to form a mixed solution A for later use. The molar ratio of the sodium molybdate to the thioacetamide is 1: 4, controlling the concentration of sodium molybdate in the mixed liquid A to be 0.03 mol/L.
(3) Slowly pouring the molybdenum powder in the step (1) into the mixed liquid A in the step (2), and repeatedly stirring the obtained mixed system to fully mix.
(4) And (4) transferring all the mixed system in the step (3) to a polytetrafluoroethylene lining of a stainless steel hydrothermal kettle, sealing the hydrothermal kettle, and putting the hydrothermal kettle into a drying box for hydrothermal reaction. The temperature of the hydrothermal reaction is 180 ℃, and the reaction time is 16 h.
(5) And (4) after the hydrothermal reaction in the step (4) is finished, collecting mixed powder in the polytetrafluoroethylene lining, washing with distilled water for 3-5 times, washing with alcohol for 1-2 times, and then putting into a vacuum drying oven for drying. The temperature of the vacuum drying oven is 60 ℃, and the drying time is 18 h.
(6) And (3) filling the mixed powder obtained in the step (5) into the graphite mould obtained in the step (1), placing the mould into an SPS sintering furnace for sintering treatment, and obtaining a final product, namely the molybdenum disulfide-doped metal matrix self-supporting electrode after sintering. The SPS sintering temperature is 1800 ℃, and the heating rate is 100 ℃/min.
The finished electrode plate prepared in this example was characterized by SEM electron micrographs, and the results are shown in fig. 4. As can be seen from fig. 4: after the product prepared by the embodiment is amplified by 5 thousand times, the surface of the product has a porous and loose surface, and the molybdenum disulfide particles of the catalytic active phase are uniformly distributed in the product, so that the foundation of high catalytic activity is laid.
In order to test the performance of the product prepared by the invention in water electrocatalytic decomposition, an electrochemical workstation can be adopted to demonstrate through an experiment of testing a hydrogen evolution polarization curve by three electrodes. The electrolyte used in the experiment is 1mol/L KOH solution, the obtained self-supporting electrode plate can be directly used as a working electrode, a graphite rod is used as a counter electrode, and a calomel electrode is used as a reference electrode. And setting a voltage scanning interval to be-1.4-0V to obtain a polarization curve. The results are shown in FIG. 5. As can be seen from fig. 5: the starting potential of the hydrogen evolution catalytic reaction of the finished self-supporting electrode plate is 75mV (eta 10). The electrode material obtained by the invention has excellent electrocatalytic hydrogen evolution performance.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention in any way, and any simple modification, equivalent change and modification made by those skilled in the art according to the technical spirit of the present invention are still within the technical scope of the present invention without departing from the technical scope of the present invention.
Claims (3)
1. A preparation method of a molybdenum disulfide-doped metal matrix self-supporting electrode is characterized by comprising the following steps:
the method comprises the following steps: selecting an adaptive graphite die according to the required size of a final product, and weighing metal powder for later use;
step two, weighing sodium molybdate and thioacetamide, dissolving the sodium molybdate and the thioacetamide in distilled water, and fully stirring to form a mixed solution A for later use; wherein the molar ratio of sodium molybdate to thioacetamide is 1: 3-5, controlling the concentration of sodium molybdate in the mixed liquid A to be 0.01-0.05 mol/L;
step three, slowly pouring the metal powder in the step one into the mixed liquid A in the step two, fully stirring and mixing to obtain a mixed system, and repeatedly stirring the obtained mixed system to fully mix; the metal powder is one or the mixture of two or more of nickel powder, molybdenum powder, tungsten powder and iron powder;
step four, transferring all the mixed system in the step three to a polytetrafluoroethylene lining of a stainless steel hydrothermal kettle, sealing the hydrothermal kettle, and placing the hydrothermal kettle into a drying box for hydrothermal reaction; the temperature of the hydrothermal reaction is 180-200 ℃, and the reaction time is 6-12 h;
step five, after the hydrothermal reaction in the step four is finished, collecting mixed powder in the polytetrafluoroethylene lining, washing the mixed powder with distilled water for 3-5 times, then washing the mixed powder with alcohol for 1-2 times, and then putting the mixed powder into a vacuum drying oven for drying;
step six, filling the mixed powder obtained after drying in the step five into the graphite mould in the step one, and placing the graphite mould into a discharge plasma sintering furnace for sintering treatment, wherein the sintering temperature is 800-1800 ℃, and the heating rate is 50-100 ℃/min; and sintering to obtain the final product, namely the molybdenum disulfide doped metal matrix self-supporting electrode.
2. The method for preparing the molybdenum disulfide-doped metal matrix self-supporting electrode according to claim 1, wherein the molybdenum disulfide-doped metal matrix self-supporting electrode comprises the following steps: in the fifth step, the temperature of the vacuum drying oven is 60-80 ℃, and the drying time is 12-24 hours.
3. The method for preparing the molybdenum disulfide-doped metal matrix self-supporting electrode according to claim 1, wherein the molybdenum disulfide-doped metal matrix self-supporting electrode comprises the following steps: the obtained molybdenum disulfide doped metal matrix self-supporting electrode is used for catalyzing water decomposition to prepare hydrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011609349.7A CN112921335B (en) | 2020-12-30 | 2020-12-30 | Preparation method of molybdenum disulfide-doped metal matrix self-supporting electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011609349.7A CN112921335B (en) | 2020-12-30 | 2020-12-30 | Preparation method of molybdenum disulfide-doped metal matrix self-supporting electrode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112921335A CN112921335A (en) | 2021-06-08 |
| CN112921335B true CN112921335B (en) | 2022-02-18 |
Family
ID=76163133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011609349.7A Active CN112921335B (en) | 2020-12-30 | 2020-12-30 | Preparation method of molybdenum disulfide-doped metal matrix self-supporting electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112921335B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114134537B (en) * | 2021-12-08 | 2023-03-24 | 国网江西省电力有限公司电力科学研究院 | Sulfur-doped molybdenum compound self-supporting electrode, preparation method and method for catalytically decomposing water |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61166904A (en) * | 1985-01-18 | 1986-07-28 | Isamu Kikuchi | Manufacture of sintered metallic body using molybdenum disulfide |
| CN109499600A (en) * | 2018-12-14 | 2019-03-22 | 江苏科技大学 | A kind of bimetallic nitrogen-doped carbon/molybdenum disulfide composite electro catalytic agent material, preparation method and applications |
| CN111074292A (en) * | 2020-02-18 | 2020-04-28 | 南昌航空大学 | Electro-catalytic hydrogen production porous high-entropy alloy electrode material and preparation method thereof |
| US10655235B1 (en) * | 2019-12-03 | 2020-05-19 | Haiming Li | Method for preparing a sintered nickel alkaline water electrolysis electrode |
-
2020
- 2020-12-30 CN CN202011609349.7A patent/CN112921335B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61166904A (en) * | 1985-01-18 | 1986-07-28 | Isamu Kikuchi | Manufacture of sintered metallic body using molybdenum disulfide |
| CN109499600A (en) * | 2018-12-14 | 2019-03-22 | 江苏科技大学 | A kind of bimetallic nitrogen-doped carbon/molybdenum disulfide composite electro catalytic agent material, preparation method and applications |
| US10655235B1 (en) * | 2019-12-03 | 2020-05-19 | Haiming Li | Method for preparing a sintered nickel alkaline water electrolysis electrode |
| CN111074292A (en) * | 2020-02-18 | 2020-04-28 | 南昌航空大学 | Electro-catalytic hydrogen production porous high-entropy alloy electrode material and preparation method thereof |
Non-Patent Citations (4)
| Title |
|---|
| Electrocatalytic activity of Ni–Fe–M (M = Cr, Mn, Cu) sintered electrodes for hydrogen evolution reaction in alkaline solution;F. Rosalbino et al;《Journal of Electroanalytical Chemistry》;20130227;第114-121页 * |
| Powder sintered NieP/CNTs composites as three-dimensional selfsupported efficient electrocatalysts for hydrogen evolution reaction;Dan Li et al;《Journal of Alloys and Compounds》;20200218;第1-9页 * |
| Sintered Ni metal as a matrix of robust self-supporting electrode for ultra-stable hydrogen evolution;Yang Zhao et al;《Chemical Engineering Journal》;20211023;第1-10页 * |
| Super Hydrophilic Heteroporous MoS2/Ni3S2 for Highly Efficient Electrocatalytic Overall Water Splitting;fang li et al;《ACS Applied Energy Materials》;20180729;第1-25页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112921335A (en) | 2021-06-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108816258B (en) | Hollow carbon material doped with hollow cobalt phosphide nanoparticles in situ, preparation method and application of hollow carbon material in hydrogen production by catalytic electrolysis of water | |
| Huang et al. | Ni activated Mo2C nanoparticles supported on stereotaxically-constructed graphene for efficient overall water splitting | |
| CN110624573A (en) | Nickel-doped cobalt selenide electro-catalysis hydrogen evolution catalyst and preparation method thereof | |
| CN110773171A (en) | Layered nickel-iron-copper hydroxide electrocatalyst and preparation method and application thereof | |
| CN107552044A (en) | A kind of effectively elementization noble metal simultaneously lifts the preparation method of its electrocatalysis characteristic | |
| CN110614105A (en) | Mo for hydrogen evolution2C/NiCoSex heterojunction electrocatalytic material and preparation method thereof | |
| CN113881965A (en) | Metal nanoparticle-loaded catalyst taking biomass carbon source as template and preparation method and application thereof | |
| CN112921335B (en) | Preparation method of molybdenum disulfide-doped metal matrix self-supporting electrode | |
| Gao et al. | Self-sustained recovery of silver with stainless-steel based Cobalt/Molybdenum/Manganese polycrystalline catalytic electrode in bio-electroreduction microbial fuel cell (BEMFC) | |
| Li et al. | Effectively enhanced activity of hydrogen evolution through strong interfacial coupling on SnS2/MoS2/Ni3S2 heterostructured porous nanosheets | |
| CN117385255A (en) | High-entropy alloy composite material and preparation method and application thereof | |
| CN116288480A (en) | Preparation method of nano-porous NiBi alloy catalyst for nitrogen reduction | |
| CN113957469B (en) | Oxygen evolution nickel ferrite or cobalt ferrite/carbon black composite catalyst and preparation method and application thereof | |
| CN114150330B (en) | FeCoNiMo high-entropy alloy powder oxygen evolution catalyst and preparation method thereof | |
| CN112921336B (en) | Preparation method of heterostructure-loaded self-supporting catalytic electrode | |
| Yang et al. | Carbon-Doped Copper (hydro) Oxides on Copper Wires as Self-supported Bifunctional Catalytic Electrode for Full Water Splitting | |
| CN114892206A (en) | Multi-metal nitride heterojunction nanorod array composite electrocatalyst and preparation method and application thereof | |
| CN113830833A (en) | Iron atom doping induction 1T-MoS2Graphene composite material and preparation method and application thereof | |
| CN112813458B (en) | Preparation method of multi-element alloy electrode material | |
| CN112813457B (en) | Preparation method of catalyst-supported alloy steel electrode plate | |
| CN112981442A (en) | FeCoMoPC amorphous alloy for alkaline full-hydrolysis and preparation method thereof | |
| CN112941558B (en) | Preparation method of composite material catalytic electrode | |
| CN112831800B (en) | Preparation method of molybdenum-based composite material electrode plate | |
| CN115020718B (en) | Non-noble metal nano-catalyst for methanol oxidation reaction and preparation method thereof | |
| CN114108028B (en) | Efficient water oxidation FeNiS 2 rGO electrocatalyst, method for its preparation and use |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |