CN113584504A - Ru/RuO2/MoO2Composite material and preparation method and application thereof - Google Patents
Ru/RuO2/MoO2Composite material and preparation method and application thereof Download PDFInfo
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- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 title claims description 120
- 238000002360 preparation method Methods 0.000 title abstract description 10
- 239000000463 material Substances 0.000 title description 2
- 239000002131 composite material Substances 0.000 claims abstract description 68
- QXYJCZRRLLQGCR-UHFFFAOYSA-N dioxomolybdenum Chemical compound O=[Mo]=O QXYJCZRRLLQGCR-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000001257 hydrogen Substances 0.000 claims abstract description 16
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 16
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 13
- 239000000725 suspension Substances 0.000 claims abstract description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 12
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000001301 oxygen Substances 0.000 claims abstract description 12
- 239000011259 mixed solution Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 6
- NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims abstract description 4
- 239000012298 atmosphere Substances 0.000 claims abstract description 3
- 239000010411 electrocatalyst Substances 0.000 claims abstract description 3
- 239000007789 gas Substances 0.000 claims abstract description 3
- 238000009210 therapy by ultrasound Methods 0.000 claims abstract description 3
- 229910052961 molybdenite Inorganic materials 0.000 claims description 22
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims description 22
- 238000001035 drying Methods 0.000 claims description 8
- 238000001354 calcination Methods 0.000 claims description 7
- 238000000227 grinding Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 239000011261 inert gas Substances 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 15
- 229910001868 water Inorganic materials 0.000 abstract description 12
- 238000006243 chemical reaction Methods 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000009776 industrial production Methods 0.000 abstract description 2
- 239000003054 catalyst Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 239000010453 quartz Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 4
- 229910019891 RuCl3 Inorganic materials 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 239000002803 fossil fuel Substances 0.000 description 3
- 238000006460 hydrolysis reaction Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- ZOMNIUBKTOKEHS-UHFFFAOYSA-L dimercury dichloride Chemical class Cl[Hg][Hg]Cl ZOMNIUBKTOKEHS-UHFFFAOYSA-L 0.000 description 2
- 229910021397 glassy carbon Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000557 Nafion® Polymers 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000000921 elemental analysis Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- YBCAZPLXEGKKFM-UHFFFAOYSA-K ruthenium(iii) chloride Chemical compound [Cl-].[Cl-].[Cl-].[Ru+3] YBCAZPLXEGKKFM-UHFFFAOYSA-K 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000003746 solid phase reaction Methods 0.000 description 1
- 238000000527 sonication Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000001132 ultrasonic dispersion Methods 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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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
-
- 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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- 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
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- Electrochemistry (AREA)
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Abstract
本发明属于电解水制氢制氧技术领域，公开一种Ru/RuO2/MoO2复合材料及其制备方法和应用。将(NH4)2MoS4加入到RuO2胶体悬浮液中，超声处理后加入水合肼，搅拌均匀，将所得混合液在150‑240℃下保持4‑48 h，离心、洗涤、干燥，得到RuO2/MoS2复合材料；将RuO2/MoS2复合材料充分研磨均匀，在N2气或惰性气氛下，200‑1000℃煅烧1‑12h，自然降温至室温后，得到Ru/RuO2/MoO2复合材料。所述复合材料作为析氢、析氧或全解水电催化剂的应用。本发明方法制备得到的Ru/RuO2/MoO2复合材料形貌均一，具有优异的电催化全解水性能，同时，在制备过程中，反应条件简单，操作容易，产率高，易工业化生产。
The invention belongs to the technical field of hydrogen production and oxygen production by electrolysis of water, and discloses a Ru/RuO 2 /MoO 2 composite material and a preparation method and application thereof. Add (NH 4 ) 2 MoS 4 to the RuO 2 colloidal suspension, add hydrazine hydrate after ultrasonic treatment, stir evenly, keep the obtained mixed solution at 150-240° C. for 4-48 h, centrifuge, wash and dry to obtain RuO 2 /MoS 2 composite material; the RuO 2 /MoS 2 composite material is fully ground and uniform, calcined at 200-1000 ℃ for 1-12h under N 2 gas or inert atmosphere, and naturally cooled to room temperature to obtain Ru/RuO 2 / MoO2 composite. The application of the composite material as an electrocatalyst for hydrogen evolution, oxygen evolution or total water splitting. The Ru/RuO 2 /MoO 2 composite material prepared by the method of the invention has a uniform morphology and excellent electrocatalytic total water splitting performance. At the same time, in the preparation process, the reaction conditions are simple, the operation is easy, the yield is high, and the industrial production is easy. .
Description
Technical Field
The invention belongs to the technical field of hydrogen and oxygen production by electrolyzing water, and particularly relates to Ru/RuO2/MoO2Composite material and its preparation method and application.
Background
Environmental pollution, global warming, and energy crisis caused by the burning of large-scale fossil fuels have been the focus of worldwide attention. Serious energy and environmental crisis compel us to find clean and sustainable energy sources to replace traditional fossil fuels. Hydrogen (H)2) The energy source is wide, environment-friendly, renewable, easy to transmit and store, and is considered as an ideal alternative energy source of the traditional fossil fuel. Compared with the traditional hydrogen production method, the electrochemical water decomposition hydrogen production is an advanced technology, and can realize the effective storage of electric energy generated by various sustainable energy sources. The water electrolysis process comprises two half-reactions, namely a cathodic hydrogen evolution reaction and an anodic oxygen evolution reaction. The core of water electrolysis is to find an efficient catalyst to trigger the reaction.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide Ru/RuO2/MoO2Composite material and its preparation method and application.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a composite material with a molecular formula of Ru/RuO2/MoO2From RuO2、MoO2And Ru.
The preparation method of the composite material comprises the following steps:
（1）、RuO2/MoS2preparing a composite material:
will be (NH)4)2MoS4Adding to RuO2Adding hydrazine hydrate into the colloidal suspension after ultrasonic treatment, uniformly stirring, keeping the obtained mixed solution at the temperature of 150-240 ℃ for 4-48 h, centrifuging, washing and drying to obtain RuO2/MoS2A composite material; wherein the dosage ratio of the raw materials is as follows: RuO2Colloidal suspension of (NH)4)2MoS4Hydrazine hydrate = (1-60) mL, (30-80) mg: (100-; RuO2RuO in colloidal suspension2The concentration of (A) is 1-3 mg/mL;
（2）、Ru/RuO2/MoO2preparing a composite material:
the RuO prepared in the step (1)2/MoS2The composite material is fully and uniformly ground, and the grinding speed is N2Calcining at the temperature of 200 ℃ for 1-12h under the atmosphere of gas or inert gas, and naturally cooling to room temperature to obtain Ru/RuO2/MoO2A composite material.
Preferably, in step (1), N is contained in the hydrazine hydrate2H4·H2The content of O in percentage by mass is 80%.
Preferably, in the step (1), the drying temperature is 60-80 ℃ and the drying time is 8-12 h.
Preferably, in the step (2), the temperature is raised at a rate of 5 to 10 ℃/min during the calcination.
The composite material is applied as a hydrogen evolution, oxygen evolution or full electrolysis water electro-catalyst.
In the present invention, RuO2Colloidal suspensions can be prepared according to the prior art. The invention utilizes a brand new solid phase reaction to prepare Ru/RuO2/MoO2Composite materials, i.e. RuO2/MoS2The composite material undergoes oxidation-reduction reaction in the calcination stage, MoS2Complete reaction, and RuO2Partial reaction to produce Ru/RuO2/MoO2The composite material has the reaction equation:
MoS2 + 3RuO2 = MoO2 +3Ru + 2SO2↑。
Ru/RuO prepared by the method of the invention2/MoO2The composite material has uniform appearance, excellent electrocatalytic full-hydrolytic performance, simple reaction condition, easy operation, high yield and easy industrial production in the preparation process.
Drawings
FIG. 1: RuO prepared in example 12、RuO2/MoS2Composite material, Ru/RuO2/MoO2XRD pattern of the composite.
FIG. 2: Ru/RuO prepared in example 12/MoO2SEM of the composite.
FIG. 3: Ru/RuO prepared in example 12/MoO2EDS profile of composite material.
FIG. 4: RuO prepared in example 12、RuO2/MoS2Composite material, Ru/RuO2/MoO2Schematic diagram of electrocatalytic hydrogen evolution performance of the composite material.
FIG. 5: RuO prepared in example 12、RuO2/MoS2Composite material, Ru/RuO2/MoO2Schematic diagram of electrocatalytic oxygen evolution performance of the composite material.
FIG. 6: Ru/RuO prepared in example 12/MoO2Schematic diagram of electrocatalytic full-hydrolytic performance of the composite material.
Detailed Description
The present invention will be further described with reference to the following specific examples. It should be understood that the following examples are illustrative only and are not intended to limit the scope of the present invention.
Example 1
Ru/RuO2/MoO2The preparation method of the composite material comprises the following steps:
（1）RuO2preparation of colloidal suspension:
0.138 g of RuCl3•3H2Dissolving O in 40 mL of deionized water to obtain RuCl3A solution; 3 mL of 30 wt% H2O2Adding 17 mL of deionized water to dilute the solution20 mL, diluted and added dropwise to RuCl3In solution; transferring the mixed solution into a 100 mL high-pressure reaction kettle, and reacting for 5 h at 95 ℃ to obtain RuO2A colloidal suspension;
（2）RuO2/MoS2preparing a composite material:
56 mg (NH)4)2MoS4Adding 60 mL of RuO obtained in step (1)2To the colloidal suspension, 112. mu.L of hydrazine hydrate (N) was added after sonication2H4·H2O content of 80 wt%), stirring, transferring the obtained mixed solution to an autoclave, keeping the mixed solution at 200 ℃ for 8 hours, centrifuging, washing the mixed solution with deionized water and ethanol for three times respectively, putting the washed mixed solution into a vacuum drying oven, and drying the washed mixed solution at 60 ℃ for 8 hours to obtain RuO2/MoS2A composite material;
（3）Ru/RuO2/MoO2preparing a composite material:
mixing the RuO prepared in the step (2)2/MoS2Fully grinding the composite material uniformly, spreading the composite material in a high-temperature-resistant quartz boat, then placing the quartz boat in a tube furnace, introducing nitrogen for 30 min to exhaust air in a quartz tube of the tube furnace, heating the quartz tube to 500 ℃ at the speed of 10 ℃/min, calcining the quartz tube in the nitrogen atmosphere for 6 h, and taking out a black powder sample after the tube furnace is naturally cooled to room temperature, namely Ru/RuO2/MoO2A composite material.
FIG. 1 shows the respective RuOs prepared2、RuO2/MoS2Composite material, Ru/RuO2/MoO2XRD pattern of the composite. As can be seen from fig. 1: starting material is RuO2And RuO2/MoS2The composite material is amorphous, and the XRD peak is very close to RuO2XRD diffractogram of (a); in Ru/RuO2/MoO2In the XRD pattern of the composite material, three peaks of Ru (JCPDS No. 89-4903) can be clearly found: 38.4, 42.2 and 44.0 degrees, which coincide with the (100), (002) and (101) crystal planes, respectively, while the diffraction peaks at 28.0 (110), 35.0 (101) and 54.3 degrees (211) are attributed to RuO2(JCPDS No. 71-2273), indicating RuO2And MoS2After redox solid phase reactionThe system still retains RuO2Phase (1); MoO in XRD2The signal of (a) was not clear and was further analyzed by SEM and EDS.
FIG. 2 and FIG. 3 are Ru/RuO, respectively2/MoO2SEM and EDS images of composite materials by comparing Ru/RuO2/MoO2Elemental analysis of the composite showed that: the sample contains Mo, O and Ru elements.
Combining the information of fig. 1-3, it is confirmed that: the invention prepares Ru/RuO2/MoO2A composite material.
Examples 2 to 8
The difference from example 1 is that: in the step (3), the calcination temperatures were adjusted to 200 ℃, 300 ℃, 400 ℃, 600 ℃, 700 ℃, 800 ℃, 1000 ℃ respectively, and the other steps were performed in the same manner as in example 1.
And (3) testing the electrocatalytic performance:
3 mg of the Ru/RuO prepared in example 1 were weighed out2/MoO2Taking the composite material as a catalyst, transferring 500 muL of absolute ethyl alcohol into a 1 mL centrifuge tube, adding 50 muL of Nafion solution (NF, 5 wt%), and performing ultrasonic dispersion treatment on the mixture to enable the mixture to be in a uniform ink dispersion state; then, 15 μ L (load amount-0.418 mg-cm) is moved–2) The suspension is dropped on a Glassy Carbon Electrode (GCE) with the diameter of 5 mm to be naturally dried to be used as a working electrode; the full electrolysis water electrode was prepared by dropping 183. mu.L of the suspension to foamed nickel (area: 1X 1 cm)−2) And naturally drying at room temperature.
The experimental process comprises the following steps: the hydrogen evolution and oxygen evolution reactions were carried out at room temperature using an electrochemical workstation (CHI-660E) in a standard three-electrode system (glassy carbon electrode prepared as described above as the working electrode, saturated calomel electrode as the reference electrode, graphite rod as the counter electrode); the full water hydrolysis reaction is carried out under a two-electrode system (both electrodes are the prepared foam nickel electrode); the hydrogen evolution/oxygen evolution/total hydrolysis reactions were all tested in 1M KOH electrolyte, converting the measured overpotential relative to a saturated calomel electrode to a relatively reversible hydrogen electrode potential. The linear polarization curves were tested at a sweep rate of 2 mV/s, and none of the resulting polarization curves were IR corrected.
FIG. 4 shows RuO2、RuO2/MoS2Composite material, Ru/RuO2/MoO2Schematic diagram of electrocatalytic hydrogen evolution performance of the composite material. As can be seen from fig. 4: RuO2、RuO2/MoS2Composite material, Ru/RuO2/MoO2The composite material is used as a hydrogen evolution catalyst, and the current density is 10 mA cm under the alkaline condition−2The overpotential of time is 249mV, 139 mV, 18 mV respectively, which indicates Ru/RuO2/MoO2The composite material has excellent hydrogen evolution catalytic performance.
FIG. 5 shows RuO2、RuO2/MoS2Composite material, Ru/RuO2/MoO2Schematic diagram of electrocatalytic oxygen evolution performance of the composite material. As can be seen from fig. 5: RuO2、RuO2/MoS2Composite material, Ru/RuO2/MoO2The composite material is used as oxygen evolution catalyst, and the current density is 10 mA cm under alkaline condition−2The overpotential of time is 343 mV, 540 mV, 260 mV respectively, which indicates Ru/RuO2/MoO2The composite material has excellent oxygen evolution catalytic performance.
FIG. 6 shows Ru/RuO2/MoO2Schematic diagram of electrocatalytic full-water decomposition performance of the composite material. As can be seen from fig. 5: Ru/RuO2/MoO2The composite material is used as a full-hydrolytic catalyst, and the current density is 10 mA cm under the alkaline condition−2Then, a low cell voltage of 1.54V was exhibited, indicating that the Ru/RuO was2/MoO2The composite material has excellent performance as a full-hydrolysis catalyst.
Claims (6)
1. A composite material characterized by: the molecular formula is Ru/RuO2/MoO2From RuO2、MoO2And Ru.
2. A method of preparing the composite material of claim 1, comprising the steps of:
（1）、RuO2/MoS2preparing a composite material:
will be (NH)4)2MoS4Adding to RuO2Adding hydrazine hydrate into the colloidal suspension after ultrasonic treatment, uniformly stirring, keeping the obtained mixed solution at the temperature of 150-240 ℃ for 4-48 h, centrifuging, washing and drying to obtain RuO2/MoS2A composite material; wherein the dosage ratio of the raw materials is as follows: RuO2Colloidal suspension of (NH)4)2MoS4Hydrazine hydrate = (1-60) mL, (30-80) mg: (100-; RuO2RuO in colloidal suspension2The concentration of (A) is 1-3 mg/mL;
（2）、Ru/RuO2/MoO2preparing a composite material:
the RuO prepared in the step (1)2/MoS2The composite material is fully and uniformly ground, and the grinding speed is N2Calcining at the temperature of 200 ℃ for 1-12h under the atmosphere of gas or inert gas, and naturally cooling to room temperature to obtain Ru/RuO2/MoO2A composite material.
3. A method of preparing the composite material of claim 2, wherein: in the step (1), N in the hydrazine hydrate2H4·H2The content of O in percentage by mass is 80%.
4. A method of preparing the composite material of claim 2, wherein: in the step (1), the drying temperature is 60-80 ℃, and the drying time is 8-12 h.
5. A method of preparing the composite material of claim 2, wherein: in the step (2), during calcination, the temperature is increased at the rate of 5-10 ℃/min.
6. Use of the composite material of claim 1 as a hydrogen evolution, oxygen evolution or total electrolysis electrocatalyst.
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| CN115522211A (en) * | 2022-05-16 | 2022-12-27 | 中山大学 | Preparation method of Ni/Mo/Ru composite material and application of Ni/Mo/Ru composite material in hydrogen production by water electrolysis |
| CN115928142A (en) * | 2022-12-22 | 2023-04-07 | 常州工学院 | Preparation method of ruthenium/molybdenum dioxide electrode material for hydrogen production by water electrolysis |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115522211A (en) * | 2022-05-16 | 2022-12-27 | 中山大学 | Preparation method of Ni/Mo/Ru composite material and application of Ni/Mo/Ru composite material in hydrogen production by water electrolysis |
| CN115928142A (en) * | 2022-12-22 | 2023-04-07 | 常州工学院 | Preparation method of ruthenium/molybdenum dioxide electrode material for hydrogen production by water electrolysis |
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