Preparation method of high-performance catalytic electrode material for hydrogen production by electrolysis of water and catalytic electrode material
Patent Information
- Application Number
- CN202411924945.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2044-12-25
AI Technical Summary
但是普通的Ni-Fe催化剂，在反应过程中因为Fe的析出溶解，会使得Ni-Fe电极的性能下降
[0031]1)通过在Ni-Fe电极上掺杂金属Ce，引入Ce氧化还原电对，其丰富的氧空位大幅提升了电极的活性与稳定性。这使得电极在电解水过程中能够更高效地催化反应进行，降低了反应所需的过电位，提高了电能转化为氢能的效率，有效减少了能源消耗，为大规模电解水制氢提供了更具经济性的技术方案。
Smart Images
Figure CN119843310B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of catalytic electrode materials technology, and in particular to a method for preparing a high-performance catalytic electrode material for hydrogen production by water electrolysis and the catalytic electrode material itself. Background Technology
[0002] Water electrolysis is an effective method for converting electrical energy into chemical energy. It breaks down water into hydrogen and oxygen without producing other pollution, making it valuable for applications in the renewable energy sector. Hydrogen energy, as a clean energy source, is crucial for achieving energy structure transformation and mitigating environmental problems. In water electrolysis, oxygen is produced through an oxidation reaction (OER) at the anode, and hydrogen (HER) is produced through a reduction reaction at the cathode. The OER reaction requires the transfer of 4e⁻. - OER (Organic Energy Conversion) is a kinetically slow process that requires a very high overpotential to drive the reaction. In OER reactions, the introduction of a catalyst helps to reduce the overpotential, thereby improving energy conversion efficiency.
[0003] Nickel-based catalysts are considered a promising option due to their excellent catalytic performance, abundant resources, and low cost. In recent years, layered nickel hydroxide (Ni(OH)₂) has been widely studied as an electrode material due to its superior electrochemical performance and stability. However, pure Ni(OH)₂ still faces challenges of activity degradation and structural instability during long-term electrolysis. Under alkaline conditions, NiFeO… x H y It is considered the electrocatalyst with the highest OER activity. Two very obvious phenomena occur in Ni(OH)₂ after Fe doping: Ni(OH)₂... )2 The redox peak of / NiOOH shifts to the positive potential, significantly improving catalyst activity. However, in conventional Ni-Fe catalysts, the performance of the Ni-Fe electrode deteriorates due to the precipitation and dissolution of Fe during the reaction. Therefore, addressing the precipitation problem of active elements is crucial. Summary of the Invention
[0004] The purpose of this invention is to overcome the shortcomings of the existing technology by providing a method for preparing a high-performance catalytic electrode material for water electrolysis to produce hydrogen, and the catalytic electrode material itself. The invention improves the catalytic performance and stability of the electrode by utilizing the abundant oxygen vacancies provided by the Ce redox couple. The performance of the NiFeCe electrode is optimized by changing the deposition voltage and the Ce ratio. This method is suitable for preparing electrodes for efficient water electrolysis reactions. The incorporation of Ce metal can effectively promote the OER reaction, promote oxygen formation, and thus accelerate the water electrolysis process.
[0005] The objective of this invention can be achieved through the following technical solutions:
[0006] The first aspect of this invention provides a method for preparing a high-performance catalytic electrode material for hydrogen production by water electrolysis, comprising the following steps:
[0007] S1. Substrate pretreatment: The conductive substrate is pretreated to remove surface impurities;
[0008] S2. Electroplating solution preparation: Prepare an electroplating solution including a nickel source, a pore-forming agent, an iron source, and a cerium source. The nickel source is a nickel salt compound that provides nickel ions, with a concentration in the range of 0.1M to 1M. The pore-forming agent is a compound that generates gas during electrolysis to assist in pore formation, with a concentration in the range of 0.5M to 4M. The iron source is an iron salt compound that provides ferrous ions, with a concentration in the range of 0.1M to 0.5M. The cerium source is a cerium salt compound that provides cerium ions, with a concentration in the range of 0.1M to 0.5M.
[0009] S3, Electrodeposition process: Using the electroplating solution obtained in S2, the pretreated conductive substrate is used as the cathode and another conductive material is used as the anode. Electrodeposition is performed by applying electrodeposition conditions through a power source.
[0010] S4. Post-treatment: After electrodeposition, remove the electrode from the electrolyte, rinse it with cleaning solution to remove residual electrolyte on the surface, and then dry it.
[0011] S5. Sintering process: The electrode is sintered under a protective atmosphere to obtain a high-performance catalytic electrode material for hydrogen production by water electrolysis.
[0012] Further, in S1, the pretreatment includes sequential ultrasonic cleaning with an acidic solution, ultrasonic cleaning with deionized water, and ultrasonic cleaning with anhydrous ethanol, followed by drying.
[0013] Furthermore, in S2, the nickel source is one of nickel sulfate, nickel nitrate, and nickel chloride.
[0014] Furthermore, in S2, the pore-forming agent is ammonium chloride, which is used to form a bubble template to achieve the pore-forming purpose.
[0015] Furthermore, in S2, the iron source is ferrous chloride, and the cerium source is cerium chloride or cerium nitrate.
[0016] Furthermore, in S3, when using a one-step deposition method to deposit Ni, Fe, and Ce, during the electrodeposition process, the pretreated nickel mesh is used as the cathode and connected to a negative power supply, while a nickel rod is used as the anode and connected to a positive power supply. Electrodeposition is performed by applying a constant voltage through the power supply, with the applied voltage ranging from 1V to 10V, the electrodeposition time controlled between 5 and 30 minutes, and the temperature controlled between 20°C and 60°C.
[0017] The electroplating solution is a mixed electroplating solution prepared by nickel source, pore-forming agent, iron source and cerium source according to a preset concentration;
[0018] When depositing Ni, Fe, and Ce in a one-step process, the mixed electroplating solution containing the nickel source, pore-forming agent, iron source, and cerium source must be stirred evenly and allowed to stand for 10-30 minutes after preparation to ensure that each component is fully dissolved and evenly dispersed.
[0019] Furthermore, in S3, when a two-step deposition method is used to introduce a nickel-iron porous electrode with Ce element only on the electrode surface, the electrode deposition process includes:
[0020] In a two-step deposition process for a nickel-iron porous electrode that introduces Ce only onto the electrode surface, the following steps are included:
[0021] 1) Preparation of nickel-iron electrode substrate:
[0022] In the electrodeposition process, a pretreated nickel mesh is used as the cathode, connected to a negative power supply; a nickel rod is used as the anode, connected to a positive power supply. Electrodeposition is performed by applying a constant current, with a current density of 0.5 A / cm². 2 Up to 2A / cm 2 The electrodeposition time is controlled between 5 and 30 minutes, and the temperature is controlled between 20°C and 60°C.
[0023] The electroplating solution is a mixed electroplating solution containing nickel source, pore-forming agent and iron source prepared at a preset concentration;
[0024] 2) Depositing nickel-iron-cerium on a nickel-iron substrate:
[0025] The electrodeposition process uses a pretreated nickel mesh as the cathode, connected to a negative power supply, and a nickel rod as the anode, connected to a positive power supply. Electrodeposition is performed by applying a constant voltage through the power supply, with the applied voltage ranging from 1V to 10V. The electrodeposition time is controlled between 5 and 30 minutes, and the temperature is controlled between 20℃ and 60℃.
[0026] The electroplating solution is a mixed electroplating solution prepared by nickel source, pore-forming agent, iron source and cerium source according to a preset concentration, wherein the nickel source is one of nickel sulfate, nickel nitrate or nickel chloride.
[0027] Furthermore, in S3, during the preparation of the nickel-iron electrode substrate, the electroplating solution used must first completely dissolve the nickel source and pore-forming agent before adding the iron source and continuously stirring until the solution becomes clear and transparent.
[0028] Furthermore, in S3, during the deposition of nickel-iron-cerium on the nickel-iron substrate, the electroplating solution is continuously stirred during the electrodeposition process at a stirring speed of 200-500 rpm to ensure the uniformity of electrodeposition.
[0029] A second aspect of the present invention provides a high-performance catalytic electrode material prepared by the method described above. The catalyst improves the catalytic performance and stability of the electrode by providing a large number of oxygen vacancies through the redox couple of Ce, promotes the OER reaction and the formation of oxygen, thereby accelerating the process of hydrogen production by water electrolysis.
[0030] Compared with the prior art, the present invention has the following beneficial effects:
[0031] 1) By doping the Ni-Fe electrode with metallic Ce, a Ce redox couple is introduced, and the abundant oxygen vacancies significantly enhance the electrode's activity and stability. This enables the electrode to catalyze the reaction more efficiently during water electrolysis, reduces the overpotential required for the reaction, improves the efficiency of converting electrical energy into hydrogen energy, effectively reduces energy consumption, and provides a more economical technical solution for large-scale water electrolysis to produce hydrogen.
[0032] 2) The introduction of Ce not only did not increase the number of active sites excessively, but it significantly improved the activity of individual active sites. In the oxygen evolution reaction (OER) of water electrolysis, this optimization effect made oxygen formation more rapid, greatly accelerated the water electrolysis reaction process, increased the hydrogen production rate, and enhanced the overall hydrogen production capacity of the water electrolysis hydrogen production system.
[0033] 3) This invention provides two methods for preparing porous nickel-iron electrodes: one-step deposition of Ni, Fe, and Ce, and two-step deposition introducing Ce only onto the electrode surface. The one-step deposition method is relatively simple and quick, and can prepare electrode materials with good performance in a short time. The two-step deposition method allows for more precise control of the electrode structure and composition. By first preparing the nickel-iron electrode substrate and then introducing Ce onto its surface, it is beneficial to further optimize the electrode performance, meet different production needs and process conditions, and improve the adaptability and operability of this invention in practical applications.
[0034] 4) The electroplating solution used in the preparation process contains a pore-forming agent, such as ammonium chloride. During electrolysis, it decomposes to generate hydrogen gas, forming a bubble template. The resulting porous self-supporting electrode structure has a large specific surface area. This porous structure facilitates electrolyte diffusion and gas transport, further enhancing the electrode's catalytic performance, reducing mass transfer resistance, allowing the reaction to proceed more smoothly, and improving the overall reaction kinetics.
[0035] 5) Compared with traditional nickel-iron electrode preparation methods, this invention determines the optimal common deposition potential of nickel, iron and cerium elements through precise control of the electrodeposition process. Without increasing costs and complex processes, it achieves a significant improvement in electrode performance, demonstrating stronger competitiveness in the field of water electrolysis for hydrogen production, and is expected to promote the further development and application expansion of this technology. Attached Figure Description
[0036] Figure 1 NiFeCe electrodes prepared by one-step deposition at different deposition voltages;
[0037] Figure 2 : SEM and EDS images of the electrode after one-step deposition. Wherein: 1 is the SEM image of the electrode after one-step deposition, 2 is the Fe element distribution in the EDS image, 3 is the Ni element distribution in the EDS image, and 4 is the Ce element distribution in the EDS image.
[0038] Figure 3 : Performance curve of the electrode. Detailed Implementation
[0039] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Component models, material names, connection structures, control methods, algorithms, and other features not explicitly described in this technical solution are considered common technical features disclosed in the prior art.
[0040] Example 1:
[0041] One-step deposition method
[0042] Step 1: Substrate Preparation
[0043] A) The nickel mesh substrate was ultrasonically cleaned for 15 minutes in 1M dilute hydrochloric acid, deionized water, and anhydrous ethanol, respectively, to remove surface impurities.
[0044] B) Place the clean nickel mesh substrate at the working electrode position and wait for further processing.
[0045] Step 2: Electrodeposition of porous nickel-iron-cerium electrode
[0046] A) Prepare an electrodeposition solution containing 0.5M NiCl2, 1M NH4Cl, 0.2M FeCl2 and 0.2M CeCl3 in an electrodeposition tank, and then purge with nitrogen to ensure thorough mixing of the solution.
[0047] B) Place a clean nickel mesh substrate in the electrodeposition tank and use it as the working electrode.
[0048] C) Apply a deposition voltage of 3V and continue electrodeposition for 10 minutes to form a porous nickel-iron-cerium electrode.
[0049] D) Remove the electrode, clean it with deionized water and ethanol, and dry it.
[0050] Step 3: Sintering process
[0051] A) Place the prepared electrode on a mesh belt furnace, set the sintering temperature to 1000℃, the sintering time to 1s, and use nitrogen as a protective atmosphere.
[0052] B) The electrodes are fed into a preheated 1000℃ mesh belt furnace to ensure instantaneous sintering.
[0053] C) After sintering, the electrode is removed from the furnace after cooling to room temperature, then washed with deionized water and dried.
[0054] Step 4: Performance Evaluation
[0055] A) Materials Characterization
[0056] Morphological observation: Scanning electron microscopy (SEM) was used to evaluate the changes in the surface morphology of the material and to observe the morphological changes caused by cerium doping.
[0057] Surface analysis: Energy dispersive X-ray spectroscopy (EDS) was used to analyze the electrode surface to confirm the successful introduction of the target element and its chemical state.
[0058] B) Performance Evaluation:
[0059] The test was conducted using a three-electrode system, with the electrode prepared in this embodiment as the working electrode, the mercury oxide electrode as the reference electrode, and the graphite electrode as the counter electrode.
[0060] The test was conducted in a 1M KOH aqueous solution. The electrolyte and oxygen were fully saturated before the test to ensure that the oxygen concentration in the electrolyte remained constant during the test.
[0061] Linear sweep voltammetry (LSV) test:
[0062] LSV testing was performed to evaluate the oxygen evolution reaction (OER) activity of the material at a scan rate of 5 mV / s and a scan range of 0 V to 0.8 V relative to mercury oxide.
[0063] Figure 1 Electron micrographs of NiFeCe electrodes prepared by one-step deposition at different deposition voltages (1.5V, 2V, 3V, 4V) show that as the applied voltage increases, the electrode begins to form a porous structure, and the electrochemically active surface area increases.
[0064] Figure 2 The images show the SEM and EDS images of the electrode after one-step deposition. Specifically: 1 is the SEM image of the electrode after one-step deposition; 2 is the Fe element distribution in the EDS image; 3 is the Ni element distribution in the EDS image; and 4 is the Ce element distribution in the EDS image. All three elements are uniformly distributed in the electrode.
[0065] Electrode performance test LSV curve as shown Figure 3 As shown, the electrode performance is significantly improved after the introduction of Ce.
[0066] Example 2:
[0067] Two-step sedimentation method
[0068] Step 1: Substrate Preparation
[0069] A) The nickel mesh substrate was ultrasonically cleaned for 15 minutes in 1M dilute hydrochloric acid, deionized water, and anhydrous ethanol, respectively, to remove surface impurities.
[0070] B) Place the clean nickel mesh substrate at the working electrode position and wait for further processing.
[0071] Step 2: Electrodeposition of porous nickel-iron substrate
[0072] A) Prepare an electrodeposition solution containing 0.5M NiCl2, 1M NH4Cl, and 0.2M FeCl2 in an electrodeposition tank, and then purge with nitrogen to ensure thorough mixing of the solution.
[0073] B) Place a clean nickel mesh substrate in the electrodeposition tank and use it as the working electrode.
[0074] C) Apply 2A / cm 2 At a current density of 1000 ppm, electrodeposition was performed continuously for 10 minutes to form a porous nickel-iron substrate.
[0075] D) Remove the electrode, clean it with deionized water and ethanol, and dry it.
[0076] E) This step can be performed or not, resulting in one or two sintering processes during preparation, which will be used to determine the impact of the sintering process. The sintering temperature is set to 1000℃, the sintering time is 1s, and nitrogen is used as the protective atmosphere.
[0077] Step 3: Deposit nickel-iron-cerium elements on a nickel-iron substrate
[0078] (1) Traditional electrodeposition method
[0079] A) Prepare an electrodeposition solution containing 0.5M NiCl2, 1M NH4Cl, 0.2M FeCl2 and 0.5M CeCl3 in an electrodeposition tank, and then purge with nitrogen to ensure thorough mixing of the solution.
[0080] B) Place a clean nickel mesh substrate in the electrodeposition tank and use it as the working electrode.
[0081] C) Apply a deposition voltage of 3V and continue electrodeposition for 10 minutes to form a porous nickel-iron-cerium electrode.
[0082] D) Remove the electrode, clean it with deionized water and ethanol, and dry it.
[0083] (2) Pulse electrodeposition method
[0084] A) Prepare an electrodeposition solution containing 0.5M NiCl2, 2M NH4Cl, 0.2M FeCl2 and 0.2M CeCl3 in an electrodeposition tank, and then purge with nitrogen to ensure thorough mixing of the solution.
[0085] B) Place a clean nickel mesh substrate in the electrodeposition tank and use it as the working electrode.
[0086] C) An AC power supply is used as the deposition power source. The deposition process consists of multiple pulse modes in a cycle, one of which includes: ① Voltage value 0, time 0.1s, slope 0.1s; ② Voltage values 1V, 2V, 3V, 4V, 5V, time 0.2s, slope 0.1s; ③ Voltage value 0, slope 0.1s, time set to 0.1s, 1s, 2s, 3s respectively. That is, the on time is fixed at 0.2s, and the off times are 0.1s, 1s, 2s, 3s respectively.
[0087] D) Set the number of cycles to 750 and the effective deposition time to 150s.
[0088] E) Remove the electrode, clean it with deionized water and ethanol, and dry it.
[0089] Step 4: Sintering process
[0090] A) Place the prepared electrode on a mesh belt furnace, set the sintering temperature to 1000℃, the sintering time to 1s, and use nitrogen as a protective atmosphere.
[0091] B) The electrodes are fed into a preheated 1000℃ mesh belt furnace to ensure instantaneous sintering.
[0092] C) After sintering, the electrode is removed from the furnace after cooling to room temperature, then washed with deionized water and dried.
[0093] Step 5: Performance Evaluation
[0094] A) Materials Characterization
[0095] Morphological observation: Scanning electron microscopy (SEM) was used to evaluate the changes in the surface morphology of the material and to observe the morphological changes caused by cerium doping.
[0096] Surface analysis: Energy dispersive X-ray spectroscopy (EDS) was used to analyze the electrode surface to confirm the successful introduction of the target element and its chemical state.
[0097] B) Performance Evaluation:
[0098] The test was conducted using a three-electrode system, with the electrode prepared in this embodiment as the working electrode, the mercury oxide electrode as the reference electrode, and the graphite electrode as the counter electrode.
[0099] The test was conducted in a 1M KOH aqueous solution. The electrolyte and oxygen were fully saturated before the test to ensure that the oxygen concentration in the electrolyte remained constant during the test.
[0100] Linear sweep voltammetry (LSV) test:
[0101] LSV testing was performed to evaluate the oxygen evolution reaction (OER) activity of the material at a scan rate of 5 mV / s and a scan range of 0 V to 0.8 V relative to mercury oxide.
[0102] Electrode performance test LSV curve as shown Figure 3 As shown in the figure, the electrode performance is significantly improved after the introduction of Ce element.
[0103] The above description of the embodiments is provided to enable those skilled in the art to understand and use the invention. It will be apparent to those skilled in the art that various modifications can be made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present invention is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the invention should be within the protection scope of the present invention.
Claims
1. A method for preparing a high-performance catalytic electrode material for hydrogen production by water electrolysis, characterized in that, Includes the following steps: S1. Substrate pretreatment: The conductive substrate is pretreated to remove surface impurities; S2. Electroplating solution preparation: Prepare an electroplating solution including a nickel source, a pore-forming agent, an iron source, and a cerium source. The nickel source is a nickel salt compound that provides nickel ions, with a concentration in the range of 0.1M to 1M. The pore-forming agent is a compound that generates gas during electrolysis to assist in pore formation, with a concentration in the range of 0.5M to 4M. The iron source is an iron salt compound that provides ferrous ions, with a concentration in the range of 0.1M to 0.5M. The cerium source is a cerium salt compound that provides cerium ions, with a concentration in the range of 0.1M to 0.5M. S3, Electrodeposition process: Using the electroplating solution obtained in S2, the pretreated conductive substrate is used as the cathode and another conductive material is used as the anode. Electrodeposition is performed by applying electrodeposition conditions through a power source. S4. Post-treatment: After electrodeposition, remove the electrode from the electrolyte, rinse it with cleaning solution to remove residual electrolyte on the surface, and then dry it. S5. Sintering process: Nitrogen gas is used as a protective atmosphere to sinter the electrode at a temperature of 1000℃ for 1 second to obtain a high-performance catalytic electrode material for water electrolysis to produce hydrogen.
2. The method for preparing a high-performance catalytic electrode material for hydrogen production by water electrolysis according to claim 1, characterized in that, In S1, the conductive substrate is a nickel mesh.
3. The method for preparing a high-performance catalytic electrode material for hydrogen production by water electrolysis according to claim 1, characterized in that, In S1, the pretreatment includes sequential ultrasonic cleaning with an acidic solution, ultrasonic cleaning with deionized water, and ultrasonic cleaning with anhydrous ethanol, followed by drying.
4. The method for preparing a high-performance catalytic electrode material for hydrogen production by water electrolysis according to claim 1, characterized in that, In S2, the pore-forming agent is ammonium chloride with a concentration of 1M.
5. The method for preparing a high-performance catalytic electrode material for hydrogen production by water electrolysis according to claim 1, characterized in that, In S3, a one-step deposition method is used. The electrodeposition process includes: using a pretreated conductive substrate as a cathode and connecting it to a negative power supply; using a nickel rod as an anode and connecting it to a positive power supply; applying a constant voltage through the power supply for electrodeposition, with the applied voltage ranging from 1V to 10V; controlling the electrodeposition time from 5 to 30 minutes; and controlling the temperature from 20℃ to 60℃.
6. The method for preparing a high-performance catalytic electrode material for hydrogen production by water electrolysis according to claim 1, characterized in that, In step S4, the cleaning solution is deionized water and ethanol, and the product is dried after cleaning.
7. A method for preparing a high-performance catalytic electrode material for hydrogen production by water electrolysis, characterized in that, Includes the following steps: S1. Substrate pretreatment: The conductive substrate is pretreated to remove surface impurities; S2. Electroplating solution preparation: Prepare two electroplating solutions respectively: The first electroplating solution is a mixed electroplating solution containing nickel source, pore-forming agent, and iron source prepared at a preset concentration; the second electroplating solution is a mixed electroplating solution containing nickel source, pore-forming agent, iron source, and cerium source prepared at a preset concentration, wherein the nickel source is one of nickel sulfate, nickel nitrate, or nickel chloride. S3. Electrodeposition process: A two-step deposition method is used to introduce Ce element only on the electrode surface into a nickel-iron porous electrode, including the following steps: 1) Preparation of nickel-iron electrode substrate: In the electrodeposition process, the pretreated nickel mesh is used as the cathode and connected to a negative power supply; a nickel rod is used as the anode and connected to a positive power supply. Electrodeposition is performed by applying a constant current through the power supply, with a current density of 0.5A / cm² to 2A / cm², an electrodeposition time of 5 to 30 minutes, and a temperature of 20℃ to 60℃; the electroplating solution is the first type of electroplating solution. 2) Deposition of nickel-iron-cerium on a nickel-iron substrate: In the electrodeposition process, the nickel-iron electrode substrate obtained in step 1) is used as the cathode and connected to a negative power supply. A nickel rod is used as the anode and connected to a positive power supply. A constant voltage is applied through the power supply for electrodeposition, with the applied voltage ranging from 1V to 10V. The electrodeposition time is controlled between 5 and 30 minutes, and the temperature is controlled between 20℃ and 60℃. The electroplating solution is the second type of electroplating solution. S4. Post-treatment: After electrodeposition, remove the electrode from the electrolyte, rinse it with cleaning solution to remove residual electrolyte on the surface, and then dry it. S5. Sintering process: Nitrogen gas is used as a protective atmosphere to sinter the electrode at a temperature of 1000℃ for 1 second to obtain a high-performance catalytic electrode material for water electrolysis to produce hydrogen.
8. The method for preparing a high-performance catalytic electrode material for hydrogen production by water electrolysis according to claim 7, characterized in that, In S3, during the preparation of the nickel-iron electrode substrate, the electroplating solution used must first completely dissolve the nickel source and pore-forming agent before adding the iron source and continuously stirring until the solution becomes clear and transparent.
9. The method for preparing a high-performance catalytic electrode material for hydrogen production by water electrolysis according to claim 7, characterized in that, In S3, during the deposition of nickel-iron-cerium on a nickel-iron substrate, the electroplating solution is continuously stirred during the electrodeposition process at a speed of 200-500 rpm to ensure the uniformity of electrodeposition.
10. A high-performance catalytic electrode material prepared by the method according to any one of claims 1 to 9, characterized in that, The catalytic electrode material improves the catalytic performance and stability of the electrode by providing a large number of oxygen vacancies through the redox couple of Ce, promotes the OER reaction and the formation of oxygen, thereby accelerating the process of hydrogen production by water electrolysis.