30 results about "Nickel substrate" patented technology

The application discloses a kind of foam nickel supported copper-cobalt bimetallic composite catalyst and preparation method and application, belong to electrocatalytic material technical field.CuSO4·5H2O, CoSO4·7H2O and C6H5Na3O7 are mixed and using constant voltage deposition method is loaded on foam nickel substrate, and CuCo / NF precursor is obtained, and copper-cobalt bimetallic composite catalyst Cu x O-Co3O4 / NF with excellent catalytic activity and stability is successfully prepared by temperature programmed calcination.The application significantly enhances the adsorption capacity of nitrate molecules on the catalyst surface by utilizing the synergistic effect of Cu and Co, reducing the incidence of side reactions, thereby improving the catalytic efficiency of nitrate reduction reaction.Compared with traditional single catalyst, it shows higher ammonia yield, Faraday efficiency (FE) and better stability, and has broad application prospect.

This invention discloses a method for preparing and applying a sodium borohydride-modified self-supporting anode for AEM water electrolyzers. Firstly, an amorphous ternary metal hydroxyl oxide precursor is grown in situ on a nickel substrate via room temperature liquid phase deposition. The process involves the presence of Co in solution. 2+ Fe 3+ Ni ions are introduced through slight corrosion of the nickel foam matrix. 2+ The ions, the three, and the OH- produced by hydrolysis ⁻ Co-deposition occurs under the influence of dissolved oxygen, leading to the self-assembly of amorphous nanosheet structures on the substrate surface. Subsequently, a mild chemical reduction treatment with sodium borohydride solution is used to obtain a structurally stable and high-performance self-supporting electrode. The method described in this embodiment is mild, simple, low-cost, and has good versatility.

The application belongs to the technical field of environmental electrocatalytic electrode preparation, and particularly relates to a preparation method of a magnetic spinel adsorption electrode and application thereof. The specific preparation steps are as follows: 1) dispersing the magnetic spinel catalyst in an electrolyte to form a suspension system; 2) constructing a double-electrode electrochemical system in the suspension system by taking foamed nickel as a cathode; and 3) stirring the suspension system, performing electrolysis reaction, and obtaining the magnetic spinel adsorption electrode after drying. The prepared adsorption electrode does not need to add an additional binder to realize the fixation of the magnetic spinel catalyst on the foamed nickel substrate, overcomes the problem of sharp reduction of the number of active sites and conductivity caused by the binder, and greatly improves the electrode catalytic degradation capacity. In addition, the preparation method does not need to consume additional binders and organic solvents, can effectively reduce the synthesis cost of the spinel electrode and reduce the discharge of waste liquid, and is an environmentally friendly catalyst synthesis method.

The application provides a high-entropy alloy electrode material and a preparation method and application thereof, wherein the preparation method comprises the following steps: S1, taking nickel salt, copper salt, iron salt, molybdenum salt and tungsten salt as raw materials, mixing the raw materials with an aqueous solution of ammonium sulfate, sodium dodecyl sulfonate and sodium citrate to obtain an electroplating solution; S2, performing electrodeposition treatment on a pretreated nickel substrate in the electroplating solution, and then performing water washing and drying treatment in sequence to obtain the high-entropy alloy electrode material. The high-entropy alloy electrode material has relatively high catalytic activity, can improve the reaction efficiency and reduce energy consumption when applied to the water electrolysis process, and the preparation method is simple, low in cost, high in safety, suitable for large-scale production and wide in industrial application prospect.

This invention relates to the field of wastewater treatment technology, and in particular to a bimetallic doped self-supporting electrode, its preparation method, and its application. Constructed via a two-step chemical vapor deposition method, the bimetallic doped self-supporting electrode MN-SnO2 / GF / NF comprises a foamed nickel substrate GF / NF coated with foamed graphite, and a bimetallic doped SnO2 layer MN-SnO2 grown in situ on the foamed nickel substrate GF / NF, wherein M and N are any two of Sb, In, Fe, Co, and Mn. This invention, employing the aforementioned bimetallic doped self-supporting electrode, its preparation method, and its application, possesses advantages such as tight interfacial bonding and fast electron transport, and can efficiently drive sulfate radical-mediated pollutant degradation reactions.

This invention discloses a method for electroplating soft gold onto a circuit board, and also discloses the circuit board. The method includes the following steps: S1: Obtaining a circuit board with a copper layer on its surface; S2: Electroplating a nickel layer on the surface of the copper layer, wherein the surface of the nickel layer has gold bonding lines and non-gold bonding lines; S3: Forming multiple arrayed and spaced bump structures in the gold bonding lines, each bump structure including a nickel substrate and a gold surface layer disposed on the surface of the nickel substrate; S4: Electroplating the circuit board with gold to form a first gold layer on the gold bonding lines and a second gold layer on the non-gold bonding lines, wherein the thickness of the first gold layer is greater than the thickness of the second gold layer. In this way, selective thickening of the gold bonding lines is achieved during the gold plating process, ensuring that the gold bonding lines have a sufficiently thick gold layer to guarantee the reliability of the gold bonding lines, while the non-gold bonding lines maintain a relatively thin gold layer, which can reduce the amount of gold used and lower the production cost of the circuit board.

This invention discloses a low-crystallinity Co-doped Ni(OH)₂ self-supporting catalyst, its preparation method, and its application, belonging to the field of biomass electrocatalytic conversion technology. Using porous nickel as a substrate, this invention employs a co-precipitation method to grow a CoNiFe PBA precatalyst in situ, followed by electrochemical in-situ reconstruction in an alkaline system to obtain a low-crystallinity Co-doped Ni(OH)₂ self-supporting catalyst supported on a nickel substrate. This catalyst is binder-free, exhibits excellent conductivity, and has abundant active sites. In a continuous flow reactor suitable for industrial applications, it operates stably for over 1000 hours at a 1 M HMF concentration, achieving a near 100% FDCA yield, realizing the efficient and stable conversion of high-concentration HMF to FDCA for industrial applications. This invention features a simple preparation process, mild conditions, and low cost, solving the problems of low activity, poor selectivity, and insufficient stability of traditional catalysts at high HMF concentrations, providing an efficient and feasible technical solution for the industrial electrocatalytic conversion of HMF to FDCA.

This invention provides a method for preparing nickel-based alloy powder and its application, relating to the field of hydrogen evolution reaction (HER) material preparation technology. The method includes the following steps: S1. Melting a metal raw material under vacuum conditions with an inert gas introduced, followed by a first heating at 1450–1700°C to obtain an alloy liquid, and then further heating to 1500–1800°C for a second heating to obtain a superheated melt; S2. Forming the superheated melt into a stable liquid flow, atomizing, breaking it up, and solidifying it to obtain the nickel-based alloy powder. In the nickel-molybdenum alloy powder prepared by this invention, molybdenum atoms are dissolved in a face-centered cubic (FCC) nickel matrix lattice in a substitutional form, forming a thermodynamically stable solid solution structure. This significantly enhances the chemical stability of the material in a strongly alkaline electrolysis environment and effectively inhibits the dissolution of molybdenum, thereby avoiding the hydrogen evolution reaction (HER) activity decay problem caused by molybdenum loss in traditional mechanically mixed Ni-Mo catalysts. It can maintain excellent and stable catalytic performance under long-term operation at high current densities.

The present application relates to the field of seawater electrolysis for obtaining clean energy hydrogen. In view of the low activity and poor corrosion resistance of the current seawater electrolysis catalyst, a preparation method of a P-CoZnO-Cu2SeS / foam nickel bifunctional composite catalyst with a grid structure is provided. First, the Cu2SeS active component is prepared on the foam nickel substrate by a solvothermal method, then the CoZnLDH grid structure material formed by the interlaced nanosheets is loaded on the prepared Cu2SeS / foam nickel by a hydrothermal method to obtain a CoZnLDH-Cu2SeS / foam nickel composite material, and finally the CoZnLDH-Cu2SeS / foam nickel is heat phosphorized to obtain the P-CoZnO-Cu2SeS / foam nickel bifunctional catalyst with the grid structure. The catalyst has high seawater electrolysis catalytic activity and strong corrosion resistance to chlorine ions in seawater, exhibits a bifunctional characteristic, and has excellent application prospect.

The application provides a processing method for surface heat treatment of nickel materials, and comprises the following steps: S1, a pretreatment stage: ultrasonic cleaning of nickel strip raw materials; S2, a hot air preheating stage: the pretreated nickel strip is sent to a preheating zone; the atmosphere is a mixed gas of argon and hydrogen; S3, a core heat treatment stage: the preheated nickel strip is sent to a core heat treatment zone for constant temperature treatment; the atmosphere is a mixed gas of argon, hydrogen and carbon monoxide; S4, the nickel strip is cooled by using a four-stage gradient; S5, surface passivation treatment is performed on the cooled nickel strip, and then blow drying and winding are performed. Therefore, the application mainly adopts a stepwise atmosphere mode of "preheating argon + low-concentration hydrogen" -> "core argon + hydrogen + carbon monoxide", which can not only avoid the problems of low-temperature invalidation and carbon residue of carbon monoxide in the preheating stage, but also can form a dense protective film with high matching degree of the nickel matrix by "hydrogen impurity removal and carbon monoxide film formation" in the core stage, so as to block the diffusion of oxygen atoms along the grain boundary.

The application discloses a kind of quick detection methods of key metal impurity content in electroless nickel plating layer, it is related to plating detection field, including taking electroless nickel plating layer workpiece to be detected, the thickness uniformity of nickel plating layer sample is obtained by mechanical stripping, sample is cut into 2mm×2mm square particles, after ultrasonic cleaning in anhydrous ethanol for 30s, vacuum drying is used until constant weight is ready for use;The application obtains the sample of uniform thickness and no oxidation pollution by accurately controlling the mechanical stripping condition and argon protection, is quickly dissolved by composite dissolving solution and inhibits the generation of sediment, cooperates with the high-efficiency removal of nickel matrix interference of modified zeolite adsorbent, and then is enriched by capillary orientation to improve impurity concentration, combined with high-purity specific fluorescent probe to form stable complex, reduce interference by blank calibration and accurate wavelength setting.

The application relates to the technical field of metal material surface treatment, and discloses a gold-silver alloy plating device for preventing nickel material oxidation, which comprises a plating mechanism. The gold-silver alloy plating device for preventing nickel material oxidation is characterized by the following steps: vacuumizing the inside of the plating mechanism to a required vacuum degree through the vacuumizing device, introducing argon as sputtering gas through the gas control device, starting the power supply device, and driving the transmission mechanism to drive the substrate clamping device to rotate by a certain angle after the driving device is started, so that the substrate is driven to rotate by a certain angle; gold-silver alloy atoms are sputtered from the gold-silver alloy target material under the bombardment of argon ions and are uniformly deposited on the surface of the nickel substrate to form a plating film; since silver and nickel are not solid-soluble, silver can prevent nickel from diffusing outward, gold can prevent oxygen from diffusing inward, and the comprehensive effect of the gold-silver alloy plating film can enhance the protection of nickel, thereby enhancing the stability of the plating film and effectively preventing the oxidation of the nickel material.

This invention belongs to the field of metal composition analysis technology and discloses a method for determining ultra-low carbon and sulfur content in high-purity nickel. This method addresses the problems of matrix mismatch and insufficient detection range in existing detection methods by achieving accurate determination through the following steps: 1. Pre-treating the high-purity nickel sample using acetone ultrasonication and hydrochloric acid immersion to remove surface impurities; 2. Preparing a series of reference reagent standard samples using sucrose and sulfate standard solutions to adapt to the high-purity nickel matrix; 3. Constructing a standard curve with dual calibration of solid standard samples and reference reagents, extending the detection range to 0.0005%~0.005% for carbon and 0.0001%~0.002% for sulfur; 4. Subtracting interference through blank experiments and calculating the carbon and sulfur content in the sample according to the formula. The carbon and sulfur spiked recoveries of this invention are 95%~103% and 96%~102%, respectively, with relative standard deviations of <13.2% and <22.0%, respectively. It features fast analysis speed, high accuracy, and traceable results, and is suitable for the detection of ultra-low carbon and sulfur content in high-purity nickel and similar metal materials.

The present application relates to a kind of foamed nickel-based Fe-B-S catalyst and its preparation method and application, and the preparation method is as follows: respectively preparing aqueous solution of iron nitrate as A solution, and aqueous solution of sodium borohydride, sodium hydroxide and sodium thiosulfate as B solution;Foamed nickel after pretreatment is immersed in A solution and B solution in turn alternately, repeat several times, dry after obtaining the foamed nickel-based Fe-B-S catalyst of the present application.The foamed nickel-based Fe-B-S catalyst uses foamed nickel as substrate, which is provided with low crystalline Fe-B-S active layer, the low crystalline Fe-B-S active layer includes Fe-B-S composite grown in situ on the foamed nickel substrate, and the Fe-B-S composite is composed of Fe, B and S element.Compared with prior art, the Fe-B-S catalyst prepared in the present application shows significantly reduced overpotential in oxygen evolution reaction, with the advantages of simple preparation, low cost and high catalytic efficiency.

The application relates to a self-supporting NiCdMo ternary composite metal oxide catalyst and application thereof, and a preparation method of the catalyst is as follows: foam nickel is cleaned under ultrasonic conditions to obtain a foam nickel substrate; nickel metal salt, molybdenum metal salt and cadmium metal salt are dissolved in an ethylene glycol aqueous solution, the mixture is stirred uniformly at room temperature, and then is transferred to a polytetrafluoroethylene-lined high-pressure kettle, the foam nickel substrate is added, the high-pressure kettle is sealed, and a solvothermal reaction is carried out; after being naturally cooled to room temperature, the obtained precursor is washed and vacuum dried to obtain A; A is calcined in an inert atmosphere, and is naturally cooled to room temperature to obtain B; B is calcined in a 5 vol.% NH3 / N2 atmosphere, and is naturally cooled to room temperature to obtain the self-supporting NiCdMo ternary composite metal oxide catalyst. The self-supporting NiCdMo ternary composite metal oxide catalyst exhibits high catalytic activity and long-term stability in urea oxidation reaction and hydrogen evolution reaction.

The application discloses a preparation method of a boronized MoNi self-supporting catalyst loaded on foamed nickel, a catalyst and application; the preparation method comprises the following steps: reacting a nickel source and a molybdenum source in a solvent to obtain an Anderson-type MoNi polyoxometalate precursor; mixing the precursor with a boron source to obtain a mixture of the precursor and boron; uniformly mixing the mixture of the precursor and boron with a NaCl-KCl molten salt medium to obtain a precursor mixture; calcining the precursor mixture and a foamed nickel substrate under an inert atmosphere to make the precursor undergo a boronization reaction and be loaded on the foamed nickel; and washing and drying the calcination product to obtain the catalyst; the Anderson-type precursor is used to realize uniform dispersion of Mo and Ni elements at a molecular scale, the electronic structure is regulated through boronization treatment, the molten salt confined reaction and the foamed nickel self-supporting structure are combined, and therefore the catalyst exhibits excellent bifunctional catalytic activity of oxygen evolution and hydrogen evolution and good stability under alkaline conditions.

This invention provides a copper-nickel-chromium heat sink, its chemical electroplating preparation method, and its application, relating to the field of heat sink technology. The preparation method includes: degreasing, removing impurities, and drying copper foil to obtain a copper substrate; depositing a nickel layer on the surface of the copper substrate to obtain a copper-nickel substrate; subjecting the copper-nickel substrate to vacuum heat treatment to obtain a copper-nickel composite sheet; chromium plating the copper-nickel composite sheet in a chromium plating solution to obtain a copper-nickel-chromium substrate; and surface reduction of the copper-nickel-chromium substrate in a reducing atmosphere to obtain a copper-nickel-chromium heat sink. This invention, by depositing a nickel layer on the surface of a copper substrate and then performing vacuum heat treatment, helps to improve the density of the nickel layer and the interfacial bonding force between the nickel layer and the copper substrate. Subsequently, chromium plating is performed on the surface of the nickel layer to form a chromium layer. Surface reduction in a reducing atmosphere can reduce high-valence toxic chromium to low-valence chromium, while also improving the uniformity and stability of the coating on the surface of the copper-nickel-chromium heat sink, thus contributing to an increased service life of the heat sink.

The application discloses a nickel-cobalt phosphide catalytic electrode which can be used for glycerol oxidation and a preparation method and application thereof, and belongs to the technical field of electrocatalysis. The preparation method comprises the following steps: S1, adding nickel salt, cobalt salt, ammonium fluoride and urea into water and stirring until they are uniformly mixed, and then performing a hydrothermal reaction on the mixture with a foamed nickel substrate to obtain a nickel-cobalt bimetallic hydroxide precursor loaded on the foamed nickel; and S2, placing the nickel-cobalt bimetallic hydroxide precursor loaded on the foamed nickel and sodium hypophosphite in an inert atmosphere and performing a low-temperature phosphorization treatment, and thus the nickel-cobalt phosphide catalytic electrode is obtained. The preparation method is low in cost and easy to operate, and the prepared nickel-cobalt phosphide catalytic electrode can be used as a bifunctional catalyst and has excellent HER and GOR catalytic activities, so that glycerol assisted hydrogen production can be realized at a low voltage, and the effective combination of energy conversion and high-value chemical production is realized.

This application relates to the field of new energy technology, and particularly to high-nickel ternary cathode materials, their preparation methods, and solid-state batteries. The high-nickel ternary cathode material comprises a substrate core, a shell, an interface buffer layer, and a surface passivation layer. Bulk doping elements (N1, N2) are distributed in the substrate core and / or the shell to stabilize the crystal structure. The shell elements are distributed in a gradient, which helps reduce interfacial impedance. The interface buffer layer can suppress side reactions between the cathode material and the solid electrolyte and improve lithium-ion mobility. The outermost fast ion conductor is passivated to form a dense and uniform protective layer. This application, by constructing multiple protective layers on the surface of the high-nickel substrate core, helps suppress interfacial side reactions between the solid electrolyte and the cathode material particles, thereby improving the cycle performance and lifespan of the solid-state battery.

The application relates to the technical field of electro-catalysis, and particularly relates to a nickel-based electrode, a preparation method and application. In view of the technical problems of uneven coverage of a deposition layer, large interface resistance and large UOR output performance fluctuation caused by unreasonable selection of process parameters of the nickel-based electrode electrodeposition, the application provides a preparation method of a nickel-based electrode, which comprises the following steps: taking foamed nickel as a conductive substrate, performing surface pretreatment on the foamed nickel to remove the surface oxide layer and internal impurities of the foamed nickel; preparing an electroplating solution, the electroplating solution being a nickel nitrate hexahydrate aqueous solution, and the concentration of the electroplating solution being 0.10 M; taking the pretreated foamed nickel substrate as a working electrode, and placing the working electrode in the electroplating solution to perform direct current electrodeposition, wherein the direct current voltage applied during the electrodeposition is-1.15 V, and the electrodeposition time is 400 s, so as to form a nickel deposition layer on the surface of the foamed nickel substrate; taking out the electrode after the electrodeposition, cleaning and drying the electrode to obtain the nickel-based electrode. The application improves the UOR current output and operation stability.

This application relates to the field of processing fiber products, and particularly to a nickel composite material suitable for improving vibration damping and noise reduction performance, and its preparation method. This nickel composite material, by covering the surface of a nickel substrate with a dense nanofiber mesh extending through the internal pores of the nickel substrate, allows the fiber mesh to be uniformly and densely distributed on the nickel substrate surface, resulting in good hydrophobicity and better sound absorption, damping, and mechanical properties compared to an untreated nickel substrate. The preparation method precisely controls the microstructure of the fiber mesh and the improvement in sound absorption coefficient by setting the needle extrusion speed, spinning voltage, and the distance between the needle and the spinning plate. By controlling the spinning voltage and the distance between the needle and the spinning plate, the fibers can be uniformly coated on the surface of the nickel substrate and embedded in the pores, forming a strong interfacial bond. By setting predetermined spinning time and parameters, the nickel substrate can be processed in batches, and the deposition thickness of the fiber mesh is controllable.

This invention relates to a porous nickel-molybdenum alloy catalytic electrode for hydrogen production via water electrolysis and its fabrication method. The electrode comprises a nickel substrate providing support and conductivity, and a catalytically active layer supported thereon. The catalytically active layer is a porous nickel-molybdenum alloy containing a sacrificial metal. The nickel substrate and the catalytically active layer are integrally formed, self-supporting structures. The fabrication process employs a two-step alloying and a final dealloying method. The alloying process involves surface alloying to form an alloy on the nickel substrate surface, including mechanical energy-assisted infiltration, embedding, surface chemical vapor deposition, and electrodeposition. The dealloying process employs either gas-phase or liquid-phase dealloying. Compared to existing technologies, the porous alloy catalytic electrode provided by this invention, when applied to the cathode of water electrolysis for hydrogen production, exhibits high hydrogen evolution reaction activity, stable performance, and a simple and efficient fabrication method, making it suitable for large-scale industrial production.

The application discloses a Cu single element Mo-doped tetranickel nitride / foam nickel electrocatalyst for preparing aniline through electrocatalytic hydrogenation of nitrobenzene and a preparation method and application thereof, and belongs to the field of new materials and electrocatalysis technology.The application aims to solve the problems of high energy consumption, serious pollution, poor safety and insufficient catalyst performance in the existing aniline synthesis technology.The catalyst is prepared through a step-by-step electrodeposition process, Cu single element and Mo-doped nickel hydroxide precursor are sequentially grown on the surface of a foam nickel substrate, and then low-temperature controllable nitriding and hydrogen-argon mixed gas reduction treatment are carried out, so as to finally obtain the Cu@Mo-Ni4N / NF electrocatalyst.The process condition is mild and the operation is simple, and high temperature and pressure and noble metal raw materials are not needed; the prepared electrocatalyst has rich heterojunction interfaces, excellent electron conduction performance and structural stability, and exhibits excellent catalytic activity, high selectivity and good cycle stability in the reaction of preparing aniline through electrocatalytic hydrogenation of nitrobenzene.

The application discloses a nickel bimetallic carbon dioxide electro-reduction catalyst with a wide voltage window and a preparation method thereof, and mainly comprises the following steps: (1) pyrolytic annealing of foam nickel and dicyandiamide in a tube furnace, in-situ growth of carbon nanotubes with Ni bimetallic active sites and uncoordinated nitrogen doped structures on the nickel substrate by using a precursor gas phase transfer method; and (2) acid etching, cleaning and drying of the product at a certain temperature to obtain the electro-catalyst. The catalyst has low cost, simple preparation method and controllable process, and when applied to the electro-catalytic CO2 reduction reaction, the carbon dioxide electro-reduction exhibits high CO selectivity of 92.78% at a low voltage of-0.25 V (vs. RHE), has high carbon dioxide electro-reduction activity and high CO selectivity in a wide voltage window of about 1.2 V, can reach an industrial-grade current density, and has good stability.

The application belongs to the technical field of preparation of plasma methane dry reforming catalysts, and relates to a multi-transition metal phosphide catalyst for methane dry reforming, a preparation method of the catalyst, and application of the catalyst in catalyzing methane dry reforming reaction in cooperation with plasma. The multi-transition metal phosphide catalyst provided by the application has high catalytic activity, excellent carbon deposition resistance and long-term stability, and comprises a foamed nickel substrate and a multi-transition metal phosphide active layer arranged on the surface of the foamed nickel substrate. The active layer at least contains nickel, iron, vanadium and phosphorus elements, and the nickel, iron and vanadium exist in the form of phosphide. The application improves the problems of insufficient activity, poor carbon deposition resistance and poor long-term stability of the catalyst for methane dry reforming in the prior art, can significantly improve the conversion rate of CO2 and CH4 and the syngas yield, and improves the energy utilization efficiency. Moreover, the preparation method is simple and convenient for industrial production.

This invention discloses an epoxy resin composite material, its preparation method, and its application. The epoxy resin composite material comprises porous boron nitride and an epoxy resin matrix. The epoxy resin matrix fills and coats the porous boron nitride. The porous boron nitride is deposited on a nickel substrate by chemical vapor deposition, and the nickel substrate is removed to obtain the composite material. The nickel substrate comprises nickel foam and a nickel seed layer. The nickel seed layer is formed on the surface of the nickel foam by physical vapor deposition. This invention, through the combination of physical vapor deposition, chemical vapor deposition, and a three-dimensional template method, constructs a highly interconnected and interface-optimized three-dimensional thermally conductive network within the epoxy resin matrix, namely porous boron nitride. This achieves a significant improvement in thermal conductivity with extremely low filling amounts, while the material also possesses excellent electrical and mechanical properties, solving the long-standing problem of the difficulty in achieving synergistic effects between thermal, electrical, and mechanical properties.

The present application relates to the field of catalytic materials, in particular to an electrolytic water hydrogen production anode electrode and a preparation method and application thereof, the electrolytic water hydrogen production anode electrode comprising a nickel base and an electroplated layer loaded on the nickel base; the element composition of the electroplated layer and its atomic percentage are as follows: Pt: 1%~4%, Ru: 0.5%~2.5%, O: 10%~15%, C: 25%~40%, and the balance is Ni and inevitable impurities.The present application loads an electroplated layer containing elements such as Ni, Pt and Ru on the nickel base by electroplating, and the prepared electrode has good stability, conductivity and catalytic activity in alkaline solution, and the content of noble metal is low, avoiding the problems of poor conductivity, high content of noble metal, high cost of electrode and easy cracking of catalyst layer in the prior art of sintering preparation of noble metal oxide electrode.