CN112354544A - Hydrogen evolution catalyst with nickel hydroxide layer coated with simple substance ruthenium structure and preparation method thereof - Google Patents
Hydrogen evolution catalyst with nickel hydroxide layer coated with simple substance ruthenium structure and preparation method thereof Download PDFInfo
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- CN112354544A CN112354544A CN201910670951.2A CN201910670951A CN112354544A CN 112354544 A CN112354544 A CN 112354544A CN 201910670951 A CN201910670951 A CN 201910670951A CN 112354544 A CN112354544 A CN 112354544A
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- 239000003054 catalyst Substances 0.000 title claims abstract description 58
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical group [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 title claims abstract description 38
- BFDHFSHZJLFAMC-UHFFFAOYSA-L nickel(ii) hydroxide Chemical compound [OH-].[OH-].[Ni+2] BFDHFSHZJLFAMC-UHFFFAOYSA-L 0.000 title claims abstract description 31
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 17
- 239000001257 hydrogen Substances 0.000 title claims abstract description 17
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 239000000126 substance Substances 0.000 title abstract description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 53
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 36
- 229910052707 ruthenium Inorganic materials 0.000 claims abstract description 30
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 26
- BIXNGBXQRRXPLM-UHFFFAOYSA-K ruthenium(3+);trichloride;hydrate Chemical compound O.Cl[Ru](Cl)Cl BIXNGBXQRRXPLM-UHFFFAOYSA-K 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 14
- YBCAZPLXEGKKFM-UHFFFAOYSA-K ruthenium(iii) chloride Chemical compound [Cl-].[Cl-].[Cl-].[Ru+3] YBCAZPLXEGKKFM-UHFFFAOYSA-K 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 239000006260 foam Substances 0.000 claims description 4
- 230000035484 reaction time Effects 0.000 claims description 4
- 238000003760 magnetic stirring Methods 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 2
- 239000002064 nanoplatelet Substances 0.000 claims 1
- 239000000243 solution Substances 0.000 abstract description 19
- 239000002135 nanosheet Substances 0.000 abstract description 6
- 230000003197 catalytic effect Effects 0.000 abstract description 5
- 239000008151 electrolyte solution Substances 0.000 abstract description 3
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 238000011065 in-situ storage Methods 0.000 abstract description 2
- 230000002195 synergetic effect Effects 0.000 abstract description 2
- 230000002194 synthesizing effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 8
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 6
- 230000010287 polarization Effects 0.000 description 6
- 238000003786 synthesis reaction Methods 0.000 description 6
- 238000005303 weighing Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 239000008367 deionised water Substances 0.000 description 4
- 229910021641 deionized water Inorganic materials 0.000 description 4
- 239000003792 electrolyte Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 229910052723 transition metal Inorganic materials 0.000 description 3
- 150000003624 transition metals Chemical class 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- ZOMNIUBKTOKEHS-UHFFFAOYSA-L dimercury dichloride Chemical class Cl[Hg][Hg]Cl ZOMNIUBKTOKEHS-UHFFFAOYSA-L 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- -1 hydrogen ions Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000013112 stability test Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 229910003266 NiCo Inorganic materials 0.000 description 1
- 229910005949 NiCo2O4 Inorganic materials 0.000 description 1
- 238000000026 X-ray photoelectron spectrum Methods 0.000 description 1
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001588 bifunctional effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000009396 hybridization Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 239000002052 molecular layer Substances 0.000 description 1
- 239000002110 nanocone Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
- B01J23/892—Nickel and noble metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/33—Electric or magnetic properties
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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
- C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
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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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- Chemical Kinetics & Catalysis (AREA)
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Abstract
The invention discloses a hydrogen evolution catalyst with a nickel hydroxide layer coated with a simple substance ruthenium structure and a preparation method thereof. The catalyst is prepared by adding ruthenium chloride hydrate and foamed nickel into sodium hydroxide solution and directly synthesizing the required catalyst in a hydrothermal mode in one step in a homogeneous reactor. The nickel hydroxide nanosheet and the simple substance ruthenium grow on the surface of the foamed nickel in situ, so that the use of an additional adhesive is avoided, good conductivity and mechanical stability are ensured, the catalytic performance of the catalyst in an alkaline environment is improved by utilizing the synergistic effect of the dual-functional active sites of the nickel hydroxide and the ruthenium, and the current density of the prepared catalyst in a 1.0M KOH electrolyte solution is 10 mA-cm‑2The desired overpotential is 27.56mV (vs RHE).
Description
Technical Field
The invention relates to the field of electrocatalysis, in particular to a hydrogen evolution catalyst with a nickel hydroxide layer coated with a simple substance ruthenium structure and a preparation method thereof.
Background
With the pace of the industrialization process, the consumption of non-renewable energy resources by human beings is increasing, the problem of environmental pollution is prominent, and the development of sustainable energy resources draws more and more attention. Hydrogen is increasingly favored and paid attention to by people because of the advantages of 1) high energy density, 2) abundant reserves, wide sources, 3) absolute cleanness and no pollution and the like. The electrolysis of water to evolve hydrogen is a very attractive method. The development and utilization of high activity, low cost hydrogen evolution catalysts are key factors in improving water electrolysis efficiency and reducing its cost. Although the hydrogen evolution catalyst that performs best today is platinum, which has an almost zero initial potential and excellent stability, its large-scale commercial use is limited due to its high cost and low earth abundance.
At present, researchers obtain transition metal catalysts with excellent catalytic performance by measures such as alloying, surface modification, hybridization and the like to replace platinum catalysts. For example, the Ni-Co-P hollow nano brick material has the current density of 10mA cm in a 1.0M KOH electrolyte-2The overpotential for time period is 107 mV (Enlai Hu, et al. restriction of resonant Ni-Co-P hollow nanobricks with oriented nanosheets for efficient over water spraying, [ J ] J]. Energy &Environmental Science, 2018,11,872-880）。NiCo2O4The core-shell structure of @ NiO @ Ni in 1.0M KOH electrolyte has a current density of 10 mA-cm-2The overpotential for time is 240 mV (Luyu Wang, et al. high efficiency Bifunctional Catalyst of NiCo)2O4@NiO@Ni Core/Shell Nanocone Array for Stable Overall Water Splitting. [J]Advanced Science News, 2017, 34, 1700228). The performance and stability of transition metal catalysts are still not comparable to those of platinum. Ruthenium is attracting attention because it is excellent as a platinum group element in catalytic performance and is 1/20 of Pt in price. The dosage of ruthenium is reduced by combining ruthenium and transition metal or phosphorizing, vulcanizing, alloying and other methods, and the performance of the catalyst is improved. For example, a nitrogen-phosphorus double-doped carbon encapsulated ruthenium diphosphide with a current density of 10mA cm in a 1.0M KOH electrolyte-2The overpotential is 52 mV (Zon)ghua Pu, et al. Pu RuP2-Based Catalysts with Platinum-like Activity and Higher Durability for the Hydrogen Evolution Reaction at All pH Values. [J]. Angewandte Chemie International Edition, 2017, 56, 11559 –11564）。
Disclosure of Invention
The invention aims to provide a hydrogen evolution catalyst with a structure that a nickel hydroxide layer is coated with simple substance ruthenium and a preparation method thereof. The catalyst has low hydrogen evolution overpotential in an alkaline electrolyte solution, good stability and excellent catalytic performance.
The technical scheme for realizing the purpose of the invention is as follows: the hydrogen evolution catalyst with the structure that a nickel hydroxide layer coats elementary ruthenium comprises nickel hydroxide and ruthenium, wherein the elementary ruthenium is anchored on the surface of foamed nickel and is coated by the nickel hydroxide layer.
A preparation method of a hydrogen evolution catalyst with a nickel hydroxide layer coated with an elemental ruthenium structure comprises the following steps:
putting clean foam nickel into ruthenium chloride solution, and reacting in a homogeneous reactor for 12-24h at 120-180 ℃.
Further, 1-4M sodium hydroxide solution is used as solvent, preferably 1M sodium hydroxide solution, ruthenium chloride hydrate is added into the sodium hydroxide solution, and magnetic stirring is carried out until the solution is uniform, wherein the preparation concentration is 1.19 multiplied by 10-4 ~1.19×10-3mol/L ruthenium chloride solution, preferably 2.97X 10-4mol/L。
Further, the foam nickel sheet is washed by 3M hydrochloric acid, absolute ethyl alcohol and deionized water in sequence to obtain clean foam nickel.
Further, the mass ratio of ruthenium to nickel is 1: 134.
Further, the reaction temperature is 160 ℃, and the reaction time is 24 hours.
Compared with the prior art, the invention has the beneficial effects that:
(1) the nickel hydroxide nanosheet has good hydrophilicity, and can adsorb water molecules in electrolyte to the surface of the catalyst and dissociate the water molecules.
(2) Ruthenium acts as a highly conductive layer and has the function of capturing electrons, and hydrogen ions generated by hydrolysis are reduced to hydrogen gas by obtaining electrons on the surface of ruthenium.
(3) The synthesis method is simple, safe and low in cost, and can be applied in large scale.
(4) The nickel hydroxide nanosheets and the elemental ruthenium grow on the surface of the foamed nickel in situ, so that the use of an additional adhesive is avoided, and good conductivity and mechanical stability are ensured.
(5) The synergistic effect between the nickel hydroxide and ruthenium dual-function active sites is utilized to improve the catalytic performance of the catalyst in an alkaline environment, and the current density of the prepared catalyst in a 1.0M KOH electrolyte solution is 10 mA-cm-2The desired overpotential is 27.56mV (vs RHE).
Drawings
FIG. 1 is a scanning electron micrograph of the one-step direct synthesized catalyst of example 1.
FIG. 2 is a mapping chart of the one-step direct synthesis catalyst of example 1.
FIG. 3 is an X-ray photoelectron spectrum of the one-step directly synthesized catalyst of example 1.
FIG. 4 is a polarization diagram of the one-step direct synthesis catalyst of example 1.
FIG. 5 is a plot of the Tafel slope for the one-step direct synthesis catalyst of example 1.
Fig. 6 is a stability test chart of the one-step direct synthesis catalyst of example 1.
FIG. 7 is a polarization plot of the one-step direct synthesis catalyst of example 2.
FIG. 8 is a polarization plot of the one-step direct synthesis catalyst of example 3.
Detailed Description
In an alkaline environment, ruthenium chloride is reduced into elementary ruthenium to be loaded on the surface of foamed nickel by utilizing the potential difference of ruthenium ions and nickel elementary substances. At the same time, Ni is released2+And reacting with sodium hydroxide to generate nickel hydroxide which covers the surface of the foamed nickel, and simultaneously wrapping the formed ruthenium elementary substance in the nickel hydroxide nano-layer.
The performance test method of the catalyst prepared by the preparation method comprises the following steps:
all electrochemical operations were carried out on a CHI760E electrochemical workstation, with a test electrolyte of 1.0M KOH. Electrochemical testing employs a three-electrode system. The counter electrode and the reference electrode are respectively a graphite rod and a Saturated Calomel Electrode (SCE). The catalyst is a self-supporting material that directly serves as the working electrode. The measured voltage is according to the following formula: evs RHE = Evs SCE + EoSCE + 0.059 pH, converted to voltage relative to a standard hydrogen electrode. Wherein EoSCE =0.242V, Evs · SCE being the voltage relative to a saturated calomel electrode.
Example 1
And 3, putting the foamed nickel into the uniformly stirred solution obtained in the step 1, putting the solution into a homogeneous reactor, and reacting for 24 hours at 160 ℃ to obtain the catalyst with the nickel hydroxide layer coated with the simple substance ruthenium structure.
Fig. 1 is a scanning electron microscope image of the catalyst with a structure in which elemental ruthenium is coated with a nickel hydroxide layer prepared by a one-step method in example 1 of the present invention. As can be seen from the figure, the surface of the foamed nickel is uniformly covered with a large number of folded nano-sheet structures, and partial nano-sheets are stacked into a sphere. A large number of pore channel structures exist among the sheet structures, and contact between active sites and electrolyte is promoted. FIGS. 2 and 3 are EDS diagrams of the nickel hydroxide layer coated elemental ruthenium structured catalyst prepared in example 1 of the present invention, and it can be seen that the elemental ruthenium is uniformly dispersed on the surface of the catalyst.
FIG. 4 is a polarization curve diagram of the catalyst with the structure of nickel hydroxide layer coated with elemental ruthenium prepared in example 1 of the present invention. It can be seen from the figure that the catalyst prepared by the method reaches the current density of 10mA cm-2The desired overpotential is 27.56mV (vs RHE). FIG. 5 shows that the nickel hydroxide layer prepared in example 1 of the present invention covers the catalyst with the structure of elemental rutheniumThe Tafel slope of (1) is 19.29mV dec-1The reaction process mechanism is explained to be a composite mechanism, and the catalyst is proved to have faster charge transfer kinetics. Fig. 6 is a stability test chart of the catalyst with the structure that the nickel hydroxide layer is coated with the elemental ruthenium, which is prepared by the one-step method in example 1 of the present invention, and the overpotential of the catalyst is almost unchanged after 1000 cycles of scanning, which proves that the catalyst has excellent stability.
Example 2
And 3, putting the foamed nickel into the uniformly stirred solution obtained in the step 1, putting the solution into a homogeneous reactor, and reacting for 24 hours at 160 ℃ to obtain the catalyst with the nickel hydroxide layer coated with the simple substance ruthenium structure.
FIG. 7 is a polarization curve diagram of the catalyst with the structure of coating elemental ruthenium on the nickel hydroxide layer prepared by the one-step method in example 2 of the present invention. It can be seen from the figure that the catalyst prepared by the method reaches the current density of 10mA cm-2The desired overpotential is 150.85mV (vs RHE).
Example 3
And 3, putting the foamed nickel into the uniformly stirred solution obtained in the step 1, putting the solution into a homogeneous reactor, and reacting for 12 hours at 160 ℃ to obtain the catalyst with the nickel hydroxide layer coated with the simple substance ruthenium structure.
FIG. 8 is a polarization curve diagram of the catalyst with the structure of nickel hydroxide layer coated with elemental ruthenium prepared by the one-step method of example 3. It can be seen from the figure thatThe catalyst prepared by the method has the current density of 10mA cm-2The desired overpotential is 70.47mV (vs RHE).
It is clear that the above examples are only given for the sake of clarity and are not intended to limit the experimental manner. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. All experimental modes need not be, and cannot be, exhaustive. And obvious variations or modifications therefrom are intended to be within the scope of the invention.
Claims (10)
1. The hydrogen evolution catalyst with the structure that a nickel hydroxide layer is coated with elementary ruthenium is characterized by comprising nickel hydroxide and ruthenium, wherein the elementary ruthenium is anchored on the surface of foamed nickel and is coated with the nickel hydroxide layer.
2. The catalyst of claim 1, wherein the nickel hydroxide has a nano-platelet structure.
3. The catalyst according to claim 1 or 2, wherein the catalyst is obtained by putting clean foamed nickel into a ruthenium chloride solution and reacting in a homogeneous reactor, the reaction time is 12-24h, and the reaction temperature is 120-180 ℃.
4. The catalyst of claim 3, wherein 1-4M sodium hydroxide solution is used as solvent, ruthenium chloride hydrate is placed in the sodium hydroxide solution, and magnetic stirring is carried out until the solution is uniform, wherein the preparation concentration is 1.19 x 10-4 ~1.19×10-3And (3) mol/L ruthenium chloride solution.
5. The catalyst according to claim 3, wherein the mass ratio of ruthenium to nickel is 1: 134.
6. The catalyst according to claim 3, characterized in that the reaction temperature is 160 ℃ and the reaction time is 24 h.
7. A preparation method of a hydrogen evolution catalyst with a nickel hydroxide layer coated with an elemental ruthenium structure is characterized by comprising the following steps:
putting clean foam nickel into ruthenium chloride solution, and reacting in a homogeneous reactor for 12-24h at 120-180 ℃.
8. The method of claim 7, wherein 1-4M sodium hydroxide solution is used as solvent, ruthenium chloride hydrate is placed in the sodium hydroxide solution, and magnetic stirring is carried out until the solution is uniform, and the preparation concentration is 1.19 x 10-4 ~1.19×10-3And (3) mol/L ruthenium chloride solution.
9. The method of claim 7, wherein the ruthenium to nickel mass ratio is 1: 134.
10. The process according to claim 7, wherein the reaction temperature is 160 ℃ and the reaction time is 24 hours.
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| CN114574895A (en) * | 2022-03-18 | 2022-06-03 | 南京师范大学 | Foam nickel loaded Ru-NiO hydrogen evolution reaction catalyst and preparation method thereof |
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| CN103924263A (en) * | 2014-04-03 | 2014-07-16 | 重庆大学 | Preparation method of high-performance nickel-based ruthenium-containing compound oxide hydrogen evolution electrode |
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| CN114574895A (en) * | 2022-03-18 | 2022-06-03 | 南京师范大学 | Foam nickel loaded Ru-NiO hydrogen evolution reaction catalyst and preparation method thereof |
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