242 results about "Active phase" patented technology

The invention discloses an impregnation liquid for preparing hydrogenated bisphenol A through bisphenol A hydrogenation. The impregnation liquid comprises a Ru complex, a water-soluble nonionic surfactant and water, wherein the molecular size of the Ru complex is greater than 1nm. According to the preparation method disclosed by the invention, by adopting the impregnation liquid containing the Ru complex of which the molecular size is greater than 1nm and the water-soluble nonionic surfactant, more Ru complex of which the molecular size is greater than 1nm can exist in mesoporous channels of an activated carbon carrier in an impregnation process, so that the contact probability of an active phase and a reactant bisphenol A molecule is increased; the purposes of improving the active metal utilization rate and improving the catalyst activity are achieved.

The invention discloses a preparation method of a hydrofining catalyst for petrochemical engineering. The preparation method comprises the following steps: step a, carrier pretreatment: putting an aluminum oxide precursor into a dilute nitric acid solution with the mass fraction of 1-5%, dipping for 2-4 hours, and drying at 120-150 DEG C for 3-6 hours; the comprehensive performance of the catalyst is remarkably improved by modifying the alumina carrier with phosphoric acid and optimizing an active component loading process; a gradient acid center is constructed on the surface of the carrier through phosphoric acid treatment to promote adsorption and dissociation of the sulfur / nitrogen-containing compound; the dispersion degree of the active phase is enhanced and high-temperature sintering is inhibited by a bimetal synergistic loading strategy; the pore structure evolution is effectively controlled by a segmented drying and stepped heating roasting process, a through type mesoporous network is formed, and the macromolecular diffusion efficiency is improved; the obtained catalyst is improved in activity in diesel oil hydrodesulfurization, improved in mechanical strength and prolonged in service life.

The invention discloses a vanadium catalyst for preparing sulfuric acid through wet conversion as well as a preparation method and application of the vanadium catalyst, and belongs to the technical field of catalysts. By improving a catalyst formula and a preparation process, a silicate aid is added to generate crystal silicon dioxide to regulate the structure of a diatomite carrier, and the heat resistance and hydrothermal stability of the catalyst are improved; the rare earth additive is added to modulate the active phase of the catalyst, so that the activity of the catalyst in a wide temperature range (380-600 DEG C) is improved, and the requirement of modern development of preparing sulfuric acid by wet conversion can be met. The preparation method is improved on the basis of a traditional vanadium catalyst wet mixing method preparation process, the active component of the catalyst is changed into slurry from colloid, uniform mixing of the active component and a carrier is facilitated, the active component is uniformly dispersed, the utilization rate of the active component is increased, and the performance of the catalyst is improved.

The invention discloses a method for efficient photo-thermal catalytic degradation of sulfur-containing organic gas. A preparation method of a sulfur-resistant catalyst comprises the following steps: (1) salt containing sulfur-resistant active metal A and an accelerant are added into water to obtain a salt solution of the active metal A, and the active metal A is selected from more than one of Fe, Co, Cu, Mn, Ni, Pt and Sr; (2) adding a salt solution containing an active phase metal B into the carbon dioxide nanotube, carrying out vacuum-assisted confinement, drying and reducing to obtain an active phase material for degrading the sulfur-containing organic gas in the confinement of the titanium dioxide nanotube, the active phase metal B being selected from more than one of Fe, Co, Cu, Mn, Ni, Pt and Sr; and (3) adding the active phase material of the titanium dioxide nanotube for confinement degradation of the sulfur-containing organic gas into the salt solution of the active metal A for coupling to obtain the sulfur-resistant catalyst. According to the method provided by the invention, the catalyst shows excellent catalytic performance in light and heat catalytic systems.

The invention relates to the technical field of catalysts, in particular to a desulfurization catalyst and application thereof in hydrodesulfurization. The desulfurization catalyst adopts a hollow core shell, a weak acid site is constructed on a shell surface, and a boron-containing polymerization network is formed through surface-initiated polymerization; and linear / branched polyethyleneimine complexation is used for synergistically introducing Ni and Mo, in-situ vulcanization is performed after inert atmosphere pretreatment, and a dispersed nickel molybdenum sulfide active phase and shallow and deep double-peak metal distribution are obtained. The structure inhibits excessive hydrogenation while ensuring diffusion and structural stability, promotes a direct desulfurization path, and shows high conversion and high selectivity to 4, 6-dimethyl dibenzothiophene. The catalyst has low hydrogen consumption, high aromatic hydrocarbon retention and cycling stability, and is suitable for deep desulfurization of diesel oil and preparation of ultralow-sulfur fuel.

The invention discloses a hydrophobic modified manganese-doped copper-based catalyst for preparing methanol through CO2 thermal reduction hydrogenation as well as a preparation method and application of the hydrophobic modified manganese-doped copper-based catalyst, and belongs to the technical field of catalysts. The preparation method of the catalyst comprises the following steps: mixing a metal salt mixed solution of a copper salt, a zinc salt, an aluminum salt and a manganese salt with an alkaline solution of a sodium salt, and controlling the pH value; heating, aging, standing and layering; washing the precipitate, drying and roasting to obtain a manganese-doped copper-based catalyst to be hydrophobically modified; the preparation method comprises the following steps: carrying out a hydrothermal reaction on divinyl benzene and a DMF solution of epoxy resin, washing and drying a white solid obtained by the reaction to obtain a hydrophobic material nano-porous polydivinyl benzene; the preparation method comprises the following steps: mixing a hydrophobic material and a manganese-doped copper-based catalyst to be hydrophobically modified, grinding, tabletting and forming to obtain the hydrophobically modified manganese-doped copper-based catalyst. The CO2 adsorption capacity of the catalyst is improved, the monatomic dispersion degree of the catalyst is promoted, and large-scale low-steric-hindrance hydrophobic modification of an active phase is realized.

The invention relates to the technical field of catalysts, and particularly discloses a composite catalyst for preparing acrolein through catalytic oxidation of propylene and a preparation method of the composite catalyst, the composite catalyst comprises an active component I and an active component II, and the use mass ratio of the active component I to the active component II is 1: (1-19); the active component I is bismuth tungstate microspheres obtained by a hydrothermal synthesis method, and the general formula of the active component I is BiaW1Ox; the active component II is a multi-metal oxide obtained by a coprecipitation method, and the general formula of the active component II is Mo < 12 > Bi Co < c > Ni < d > Fe < e > A < f > B < g > O < y >; the bismuth tungstate microspheres obtained by a hydrothermal synthesis method and the multi-metal oxide obtained by a coprecipitation method are mixed to obtain the composite catalyst, so that the bismuth tungstate microspheres with microsphere structures can be used as active phases of reaction, and the specific surface area and the pore volume of the composite catalyst can be increased; the catalyst is suitable for a reaction for preparing acrolein through propylene catalytic oxidation under high load.

The invention belongs to the technical field of catalysts, and particularly relates to a Fe-based catalyst, a preparation method thereof and application of the Fe-based catalyst to preparation of low-carbon olefin through CO2 hydrogenation. The Fe-based catalyst comprises a carrier, transition metal elements and alkali metal elements, wherein the transition metal elements and the alkali metal elements are loaded on the carrier; the carrier is formed by pyrolyzing a carbamide compound; the carbon atom number of the carbamide compound is less than or equal to 10; the transition metal element comprises Fe. Compared with the prior art, the alkali metal element is introduced into the catalyst, so that the CO2 adsorption capacity of the Fe-based catalyst can be enhanced, and the CO2 conversion rate is increased; in addition, the carbonization efficiency of the Fe-based catalyst can be effectively promoted, and the formation of an iron carbide active phase is promoted; moreover, the Fe-based catalyst shows good catalytic activity when being used in a reaction for preparing low-carbon olefin through CO2 hydrogenation, has an industrial application prospect, and also has relatively high low-carbon olefin selectivity.

The invention provides a preparation method of a MoS2 / MXene moire heterogeneous synergistic catalyst, which comprises the following preparation steps: selectively etching a Ti3AlC2 precursor by adopting LiF and HCl to obtain a two-dimensional MXene nanosheet; the preparation method comprises the following steps: mixing an MXene solution with Na2MoO4, CH4N2S and citric acid in proportion, and ultrasonically dispersing in a water solvent to form a precursor solution; by regulating and controlling the proportion of the 1T / 2H-MoS2 phase, the conductivity and the stability are both considered, and the synergistic effect of the MoS2 as an electrocatalytic active phase is improved; the orientation and the torsional angle of MoS2 are regulated and controlled on a two-dimensional MXene substrate, a periodic Moire superlattice structure is constructed, and electron coupling and energy band alignment are enhanced; by constructing a collaborative interface system, the transmission rate of interface carriers is increased, the reaction overpotential is reduced, and the durability and cycling stability under high current density are enhanced; the invention provides an extensible and universal flexible preparation method which is suitable for a low-temperature-condition controllable synthesis process for constructing a two-dimensional MoS2 / MXene heterostructure in a large area.

The invention discloses a preparation method of a Sn-Bi-Ni-Cu quaternary liquid alloy methane cracking catalyst, production raw materials comprise composite melt metal and composite transition metal, and the mass ratio of the composite melt metal to the composite transition metal is 1: (0.3-1.2); the composite melt metal is composed of Sn and Bi according to the mass ratio of 1: (1.3-1.7); the composite transition metal is composed of Ni and Cu according to the mass ratio of 1: 0.15-1.2. The quaternary liquid alloy catalyst has the advantages that: 1) compared with the existing catalyst for hydrogen production by methane cracking, the quaternary liquid alloy catalyst provided by the invention can stably operate for more than 1000 hours in a range of normal pressure to 3MPa and air speed of 100-100mL. G <-1 >. H <-1 >, the active phase retention rate is more than 95%, and the quaternary liquid alloy catalyst is especially suitable for alkane pyrolysis hydrogen production, CO2 hydrogenation and easy carbon deposition reaction systems, and has a wide application prospect; a new material design thought and an engineering implementation scheme are provided for the field of liquid metal high-temperature catalysis; and 2) experiments show that the quaternary liquid alloy catalyst prepared by the method provided by the invention can significantly improve the carbon sequestration rate and the hydrogen yield.

The invention discloses a vanadium catalyst for sulfuric acid production and a preparation and use method thereof, and belongs to the technical field of catalysts. A catalyst formula and a preparation process are improved, a silicate aid is added to generate crystal silicon dioxide to regulate and control the structure of a diatomite carrier, and a tabletting molding process is adopted to replace an extrusion molding process, so that the strength and stability of the catalyst are improved, the abrasion is reduced, and the pulverization resistance is improved; the additive is added to modulate the active phase of the catalyst, the activity stability is improved, and the requirements of modern sulfuric acid production can be met. The catalyst produced by the technical scheme is uniform in active component distribution and high in mechanical strength, the stability is improved, the production requirements of sulfuric acid manufacturers can be better met, the operation stability of a sulfuric acid production device is improved, and remarkable economic benefits and social benefits are achieved.

The invention provides a loess-based hydrogen sulfide adsorbent, a preparation method thereof and application of the loess-based hydrogen sulfide adsorbent in removal of hydrogen sulfide in natural gas. Loess with a specific substance content is taken as a raw material, the material is prepared through pretreatment, modification activation and extrusion molding, and modification activation comprises alkali activation, graphene oxide crosslinking and copper and zinc loading. According to the invention, specific loess is combined with a targeted modification and activation process, so that the porosity and the specific surface area are effectively improved, and a new active phase is formed and endowed with adsorption and catalytic oxidation effects. The prepared adsorbent has the remarkable advantages of low cost, high sulfur capacity, long penetration time, excellent regeneration performance and the like. In a medium-low-temperature dry desulfurization scene, HS (the concentration is reduced to 0.1 ppm or below) in natural gas can be efficiently removed, and the device is particularly suitable for small and medium-sized natural gas purification devices in various process scenes such as a fixed bed and a moving bed, and can also be expanded to various fields such as coal chemical industry, petrochemical industry, biogas purification, environmental protection and the like.

This invention discloses a method for extending the range of guided rockets using a single-chamber, dual-thrust design. By rationally designing the guided rocket's acceleration process after launch, this method effectively reduces energy loss during passage through dense atmosphere, improves the guided rocket's energy conversion efficiency, and ultimately, with a comparable charge, enables the guided rocket to achieve greater mechanical energy at the end of its active phase, thereby effectively increasing its range. A notable feature of this method is that the end of the guided rocket's active phase is located at a higher altitude, thereby achieving a better thermal environment in the active phase while simultaneously increasing its range.

The invention relates to a preparation method of a catalyst for efficiently decomposing high-humidity ozone, which comprises the following steps: (1) roasting and pretreating spherical aluminum oxide, soaking in a hydrochloric acid solution, washing with water and drying; (2) uniformly dispersing a manganese source and a copper source in an organic solvent to obtain a mixed solution, completely impregnating the hydrochloric acid modified spherical aluminum oxide in the step (1) in the mixed solution, and drying and calcining the impregnated spherical aluminum oxide catalyst to obtain a manganese-copper-based catalyst; and (3) uniformly dispersing a platinum source in pure water, completely dipping the manganese-copper-based catalyst in the step (2) in a platinum source solution, and drying and calcining the dipped catalyst again to obtain the high-moisture-resistance catalyst. The catalyst is prepared by adding the active components in two steps, so that the overall dispersity is improved to form a more ideal active phase, the dispersity of the active components manganese, copper and platinum is improved, the spatial distribution of active sites is controlled, side reactions are inhibited, and the catalyst is suitable for removing ozone in a high-humidity environment and has the characteristics of high humidity resistance and the like.

The invention relates to the technical field of zinc-air batteries, in particular to a preparation method of a NH4Cl auxiliary modified flexible carbon nanotube film loaded nano FeNi particle catalyst, which comprises the following steps: introducing FeNi nanoparticles on an SWCNT film, nitriding by ammonia gas, and decomposing NH4Cl in high-temperature vacuum to generate NH3 and HCl to realize particle in-situ refinement and heterostructure construction. And the FeNi3N / FeNiN active phase with high density and small size is formed. The obtained integrated flexible catalyst has excellent ORR / OER bifunctional activity, the ORR half-wave potential in 0.1 M KOH reaches 0.82 V, the OER overpotential is only 190 mV, and the integrated flexible catalyst has excellent mechanical flexibility and cycling stability and can be directly used as a self-supporting electrode for a high-performance flexible zinc-air battery to promote development of wearable energy devices.

The present disclosure relates to a nanostructured coating for controlled biocidal and self-cleaning functions. It is disclosed a nanostructured coating for controlled biocidal and self-cleaning functions, comprising: an adhesion layer deposited on a substrate; a transition layer deposited on the adhesion layer; and a top layer comprising a passive matrix phase and a biocidal active phase; wherein the transition layer promotes mechanical compatibility between the adhesion layer and the top layer bounding the layers; wherein the coating is configured to electrochemically release biocidal species in response to an applied electrical potential, while maintaining corrosion resistance and mechanical hardness; and wherein the coating is electrochemically reversible, such that the biocidal release is controllable and stoppable by adjusting or reversing an electrical potential.

The invention discloses an anti-wrinkle skin care product composition and a facial mask.The anti-wrinkle skin care product composition comprises an active phase and a basic phase, and the active phase comprises I-type collagen peptide, a ginseng extract, a grape seed extract, an aloe extract and a turmeric extract; the base phase comprises a humectant. According to the technical scheme, the problem that skin collagen is difficult to supplement in a transdermal way is solved.

An integrated catalyst can be used in an olefin disproportionation reaction. The integrated catalyst contains a plurality of different integrated active phases. The relative positions among different active phases remain substantially unchanged during the olefin disproportionation reaction. The effective distance between respective bisecting planes of two adjacent different active phases is 0.5-5 mm, preferably 1-3 mm.

The present invention relates to a catalyst comprising a ruthenium oxocarbonate, its preparation method, and its use for the hydrogenation of CO2 to form methane at temperatures below 200°C.

This invention discloses a deep defluorination agent and its application method, specifically relating to the field of defluorination agents (GMS-FS series products). It includes a valence-state switching active phase, a reaction interface building component, a dynamic electronic regulation component, and a structure adjustment and protection component. The valence-state switching active phase provides a reversible valence-state transition reaction center, achieving specific capture of fluoride ions through an electron trapping effect when interacting with them. The reaction interface building component forms a polar gradient interface layer on the surface of the defluorination agent, guiding fluoride ions to migrate towards the active center and locally enrich them, thereby improving defluorination efficiency. By constructing a rare metal valence-state switching active phase with La2O3 and UO2 as its core, combined with a polar gradient interface guiding layer and a dynamic electronic regulation mechanism, preferential migration and specific capture of fluoride ions are induced in a multi-ion coexistence environment, achieving stable deep defluorination under high salinity and highly competitive ion conditions.

The invention discloses an electrode material which is simple in preparation method, high in performance and capable of stably producing hydrogen by electrolyzing water, and also discloses a preparation method of a photocatalyst for purifying wastewater by using a derivative of the electrode material. The preparation method of the electrocatalyst mainly comprises the following steps: etching a nickel metal substrate by using diluted hydrochloric acid; the preparation method comprises the following steps: preparing a first-stage product, dissolving the first-stage product with a bismuth source and molybdate in a reaction kettle, carrying out hydrothermal synthesis to obtain a hydrothermal product, carrying out high-temperature calcination on the obtained material to obtain a sample precursor and a part of byproducts, finally repeating the reaction once to obtain a high-activity electrode and related byproduct derivatives, mixing the two byproducts, carrying out high-temperature calcination, and grinding to obtain a second-stage product. According to the prepared catalyst, a bismuth source is introduced to serve as an additive, a NiMoO4 / Fe2 (MoO4) 3 composite film layer active phase is constructed on an NF substrate through a one-step hydrothermal-corrosion-growth method, the active phase and an NF framework are induced through a confinement effect to form strong interface bonding, the electron transfer rate is increased, and the electrode performance is remarkably improved by reducing the valence band position of the active phase. The preparation process is simple to operate, the morphology of the catalyst is controllable, and derived by-products generate higher economic benefits.

The invention discloses a method for synthesizing 2-aminopyridine, comprising using polystyrene resin beads as a carrier, a mixed solvent consisting of 1,2-dichloroethane and anhydrous ethanol as a porogen, adding the polystyrene resin beads and the mixed solvent to a flask for swelling; adding N,N-dimethylaniline to the flask, and performing a stirring reflux reaction; repeatedly washing the mixed solution in the flask with anhydrous ethanol and filtering it with suction, and finally vacuum drying it at room temperature. The method for synthesizing 2-aminopyridine utilizes polymer resin beads as a carrier, grafts a preferred highly active phase transfer catalyst molecule - N,N-dimethylaniline, and synthesizes a solid-supported phase transfer catalyst to achieve efficient recycling and regeneration of the phase transfer catalyst, and ensures the yield of the pyridine amination product by the solid-supported phase transfer catalyst, which is conducive to ensuring the efficient resource utilization of basic nitrogen heterocyclic compounds in coal tar.

This application discloses a method and its application for in-situ construction of hierarchical porous photocatalytic foam ceramics based on the pyrolysis of carbonates and / or oxalates. This method introduces a full spectrum of carbonate and / or oxalate precursors, including alkaline earth metals, transition metals, rare earth elements, and bismuth-based precursors, into an organic foam impregnation system. Combined with a gradient heat treatment process, during sintering, the following are simultaneously achieved: in-situ pyrolysis of the precursors to generate a highly dispersed metal oxide photocatalytic active phase; synergistic construction of micro- and macro-hierarchical channels through gas release and template decomposition; and in-situ construction of photocatalytic heterostructures based on a combination of metal cations. The resulting material possesses a three-dimensional interconnected pore structure, excellent mechanical stability, and broad-spectrum photocatalytic activity, enabling efficient degradation of recalcitrant emerging pollutants in water, such as antibiotics, perfluorinated compounds, and bisphenol A. This provides a structure-function integrated material solution for the engineering application of photocatalysis technology in environmental remediation.

The invention discloses a carbon-coated heterojunction difunctional electrocatalyst which is formed by a heterostructure formed by a metal organic framework derived carbon-coated nickel-based bimetallic alloy and an oxide, the metal organic framework derived carbon-coated nickel-based bimetallic alloy is of a nano structure, and the oxide is also of a nano structure. The two are stacked to form a 3D nanosheet composite structure and are loaded on the carrier; wherein the carbon-coated nickel-based bimetallic alloy is used as an active phase. According to the preparation method, an electrocatalyst with a heterostructure is grown on a soaking nickel carrier by adopting a hydrothermal method, the effective area of reaction is greatly increased due to the morphology of a nanosheet structure, and meanwhile, a graphite phase carbon layer derived from a metal organic framework is generated on the outer layer of the nickel-based alloy, so that the inherent defects of the alloy are overcome, and the conductivity of the material is improved.

The application relates to the field of motor vehicle exhaust treatment, in particular to a manganese-based catalyst for motor vehicle exhaust purification and a preparation method and application thereof, the preparation method comprising the following steps: S1, mixing a transition metal salt with a manganese-based active phase, carrying out ultrasonic chemical precipitation treatment, washing and drying to obtain a precursor; and S2, calcining the obtained precursor at 300-800 DEG C to obtain a manganese-based catalyst containing a transition metal oxide. The manganese-based catalyst is prepared by using an ultrasonic chemical precipitation method to prepare a precursor, and the catalyst obtained after calcination, and the transition metal oxide is uniformly precipitated around the manganese-based active phase. The crystal lattices of the two are adapted, a large amount of inert crystal lattice oxygen can be converted into active crystal lattice oxygen, high-efficiency CO and HC oxidation can be realized at low temperature, a large amount of adjacent oxygen vacancies generated after the oxidation can realize high-selectivity reduction of NO into N2 at low temperature, and the reaction path of NO is accurately controlled.

The present application relates to the field of catalyst preparation, and discloses a vanadium phosphorus oxygen catalyst, a preparation method and application thereof, wherein the content of pyrophosphoric vanadyl oxide phase in the crystal phase structure of the vanadium phosphorus oxygen catalyst is 80-99.9wt%. The vanadium phosphorus oxygen catalyst provided by the present application has high active phase content, large specific surface area and large average pore size, and has good catalytic performance in the reaction of preparing maleic anhydride from n-butane oxidation, and can significantly improve the conversion rate of n-butane and the yield of maleic anhydride.

A process for preparing a macroporous material comprising an active phase comprising a potassium phosphate salt and / or a cesium phosphate salt and a support comprising α-SiC silicon carbide and silica comprising the following steps: a) contacting a colloidal silica sol with a powder of a potassium and / or cesium phosphate salt to obtain a suspension; b) adding a powder of precipitated silica, a powder of α-SiC silicon carbide and a solvent to obtain a paste; c) shaping the paste to obtain a material precursor; d) drying the material precursor at a temperature between 15°C and 250°C; e) calcining the dried material precursor obtained at the end of step d) at a temperature above 250°C and below or equal to 1200°C.

This invention discloses a highly active oil-soluble molybdenum-based catalyst, its preparation method, and its application in the catalytic hydrocracking and upgrading of heavy and inferior oils, belonging to the field of chemical catalyst technology. The highly active oil-soluble molybdenum-based catalyst is prepared by the following method: a long-chain fatty acid ester is mixed with a polyol amine, then an alkaline ionic liquid is added, and the reaction is stirred under a nitrogen atmosphere; after the reaction is complete, the mixture is allowed to stand and separate into layers, and the upper layer of reaction product is taken to obtain a polyol amine ester; the polyol amine ester is mixed with a molybdenum source, and the reaction is stirred under a nitrogen atmosphere to obtain the highly active oil-soluble molybdenum-based catalyst. The oil-soluble molybdenum-based catalyst has good oil solubility, can dissolve and disperse in feedstock oil, and has high activity, capable of decomposing at low temperatures to generate an active phase. It exhibits excellent hydrogenation catalytic activity in the slurry-bed hydrogenation process of heavy and inferior oils, thus demonstrating good application prospects and value in the field of chemical catalysis technology.

This invention discloses a method for preparing a biomass gasification adsorption-enhanced reforming hydrogen production catalyst, belonging to the fields of catalyst preparation and biomass thermal conversion technology. The catalyst of this invention uses CeO2 as a high-content support and Ni and Fe as active components. The method employs a co-impregnation method to simultaneously load a nickel active phase precursor and an iron co-catalytic precursor onto the support surface; after drying, the precursor powder is placed under an inert atmosphere and processed according to the following relationship... T ×0.01+ t By calcining at a temperature T of 10°C with a time t in a complementary correlation, a composite catalytic system with strong interactions is constructed. This invention also provides the application of the above catalyst in combination with a calcium-based adsorbent in biomass adsorption-enhanced reforming for hydrogen production. This invention enhances the catalyst's resistance to carbon deposition by regulating the bimetallic electronic structure and the oxygen storage and release capacity of the support. Simultaneously, by combining a segmented temperature control process, it achieves kinetic synergy between in-situ CO2 capture and catalytic reforming, significantly increasing the green hydrogen content in the syngas.

The embodiments of the present disclosure disclose a catalytic electrode, a preparation method thereof, and a water electrolysis method. The catalytic electrode comprises: a metal catalytic electrode body; and a surface active phase on the surface of the metal catalytic electrode body, wherein the surface active phase has a metal atom e g The number of electrons of the orbit is close to 1. The preparation method of the catalytic electrode comprises the following steps: placing a metal catalytic electrode body in an alkaline electrolyte for water electrolysis; applying light irradiation with a specific power to the metal catalytic electrode body; and applying a preset voltage to the metal catalytic electrode body to operate, and in the process of operation, a surface active phase is generated on the surface of the metal catalytic electrode body under the action of light irradiation and the preset voltage. The catalytic electrode can improve the activity of the existing catalytic electrode for water electrolysis.