47 results about "Phenylacetylene" patented technology

The application belongs to the technical field of polymer materials and engineering, and discloses a preparation method of a phosphate cross-linked organic porous uranium extractant. A phenylacetylene is cross-linked with 1,4-dithioerythritol through a click chemistry reaction by using a photo-induced cross-linking method. Compared with common mercaptans, 1,4-dithioerythritol contains an adsorption group. The cross-linking reaction is carried out under the condition that the ratio is 1:3 and the light irradiation time is 1h. An organic polymer PCM with a porous structure is synthesized. After the synthesized polymer is subjected to Soxhlet extraction for 48h, the polymer is modified by phosphating with phosphorus oxychloride to prepare a porous polymer containing a phosphate group. After the synthesized polymer is subjected to Soxhlet extraction for 48h and is dried, a purple black powder P-PCM is obtained. The target polymer can be synthesized only through three steps of reactions. The polymer preparation is relatively simple under the photo-induced cross-linking, which is of great significance to improving the uranium adsorption capacity. The preparation is simple, the reaction is stable, the safety is high, and the cost is low through the click chemistry reaction.

The invention belongs to the technical field of chemical analysis and detection. The invention provides a platinum complex fluorescent probe as well as a preparation method and application thereof in detection of water. The chemical formula of the platinum complex fluorescent probe is C23H16ClN3Pt; the preparation method comprises the following steps: 1, under the protection of argon, mixing terpyridine, potassium tetrachloroplatinate, deionized water and dimethyl sulfoxide in a round-bottom flask, heating, stirring, carrying out reflux reaction, cooling to room temperature, adding concentrated hydrochloric acid, carrying out suction filtration to obtain a precipitate, and drying to obtain Pt-Cl; 2, Pt-Cl, phenylacetylene, cuprous iodide, N, N-dimethylformamide and triethylamine are mixed into a round-bottom flask, then argon is pumped and replaced for multiple times, after a reaction, suction filtration is conducted, precipitates are obtained, washing and drying are conducted, and the catalyst is obtained. The platinum complex fluorescent probe is applied to detection of water and has the advantages of specific selectivity, high sensitivity, wide detection concentration range and the like, so that the detection can better meet the current requirements.

The invention discloses a Pd / 3-CN polymer catalyst as well as preparation and application thereof. The preparation method of the Pd / 3-CN polymer catalyst comprises the following steps: fully mixing cyanuric chloride, 3, 5-diamino-1, 2, 4-triazole, potassium carbonate and potassium tetrachloropalladate, uniformly grinding, transferring the obtained solid powder into a hydrothermal reactor, reacting at 80-160 DEG C for 12-24 hours, washing the obtained solid, performing Soxhlet extraction, and drying to obtain the Pd / 3-CN polymer catalyst. The Pd / 3-CN polymer catalyst is obtained. The invention provides the application of the Pd / 3-CN catalyst in the reaction of preparing the styrene compound by hydrogenation of the phenylacetylene compound, and the Pd / 3-CN catalyst can realize high phenylacetylene compound conversion rate and high styrene compound selectivity within a short reaction time.

The invention relates to the field of oilfield chemical industry. The invention relates to a temporary plugging agent, in particular to a temperature-resistant and compression-resistant temporary plugging agent and a preparation method and application thereof. The temperature-resistant and compression-resistant temporary plugging agent comprises the following raw material components in parts by weight: 60-80 parts of polyimide; 5-10 parts of calcium carbonate nanofibers of which the surfaces are assembled with amphiphilic block copolymers; 0.2 to 4 parts of an auxiliary agent; wherein the polyimide is prepared by taking biphenyl tetracarboxylic dianhydride, p-phenylenediamine and phenylacetylene phthalic anhydride as polymerization reaction raw materials; the amphiphilic block copolymer assembled on the surface of the calcium carbonate nanofiber is polystyrene-b-polyacrylic acid. The temperature-resistant and compression-resistant temporary plugging agent provided by the invention has excellent high temperature resistance, compression resistance and plugging capacity, can be quickly hydrolyzed and crushed after temporary plugging is finished, can realize quick plugging removal, and is suitable for a high-temperature and high-pressure mining environment with the formation temperature (use environment) of 281-295 DEG C and the formation pressure of more than or equal to 130 MPa.

This invention belongs to the field of polymer composite materials technology, specifically relating to a self-lubricating polyimide resin based on a perfluoroether bond network and carbon dot reinforcement, its preparation method, and applications. The invention involves mixing carboxyl-functionalized carbon dots, an ether-containing aromatic diamine, and a polar aprotic solvent to obtain a carbon dot-diamine pre-assembled system, which is then polymerized with a perfluoroaromatic dianhydride to obtain a linear polyamic acid solution. This linear polyamic acid solution is then reacted with a phenylacetylene-containing active end-capping agent to obtain a polyamic acid solution with a three-dimensional network structure. Finally, the polyamic acid solution with the three-dimensional network structure is cured in a protective gas atmosphere to obtain a self-lubricating polyimide resin. The self-lubricating polyimide resin provided by this invention achieves a synergistic improvement in load-bearing capacity, wear resistance, and structural stability under high temperature and high load conditions, and can be widely applied in aerospace high-temperature bearings, high-load sealing rings, wear-resistant coatings for extreme conditions, and high-temperature sliding components.

The invention belongs to the technical field of photocatalytic materials, and particularly relates to a method based on one-step in-situ synthesis of a copper cyanophenylacetylene / copper phenylacetylene (CN-PhCCu / PhCCu) homogeneous heterojunction composite photocatalyst and application. The homogeneous heterojunction composite photocatalyst with a compact interface structure is synthesized in situ in one step under a mild condition by regulating and controlling the ratio of copper cyanophenylacetylene (CN-PhCCu) to copper phenylacetylene (PhCCu). The heterojunction can effectively promote exciton dissociation and photo-induced electron delocalization, remarkably inhibit charge recombination and improve the utilization efficiency of visible light. Experiments show that the composite photocatalyst shows excellent degradation performance on various water pollutants such as diclofenac (DCF) under irradiation of visible light, and has the advantages of high degradation efficiency, wide pH application range, strong coexisting ion interference resistance and the like. The method disclosed by the invention is simple in process and mild in condition, and provides a new material and technical support for efficient visible light driven water body pollution control.

The application discloses a room-temperature phosphorescent material of a phenylacetylene node-substituted pyrene derivative and a preparation method thereof. The pyrene is used as a substrate, and phenylacetylene is selectively substituted at a node (2 position) of the pyrene. Compared with a pyrene derivative obtained by substituting phenylacetylene at an anti-node (1 position) of the pyrene, the pyrene derivative obtained by substituting phenylacetylene at the node destroys the conjugation of the substitution site, maintains the rotation freedom between the substituent and the pyrene core, thereby enhancing the spin-orbital coupling, and enabling the room-temperature phosphorescence of the pyrene derivative. The obtained room-temperature phosphorescent material has the advantages of high luminous efficiency and long lifetime.

The invention provides a modified polyether-ether-ketone resin composite material as well as a preparation method and application thereof, and belongs to the field of high-molecular polymer materials. The modified polyether-ether-ketone resin / glass fiber composite material with a continuous chemical gradient interface is prepared through the interface bonding design of the polyether-ether-ketone oligomer containing the phenylacetylene functional group, the respective plasticizing and co-extrusion composite process and the reverse gradient structure design with the hard outside and the tough inside; the composite material is used for a high-performance robot exoskeleton device, and the problems that the strength and toughness of a traditional composite material are difficult to maximize at the same time, layers of a multi-layer or gradient material are easy to strip and lose efficacy, and a high-performance complex component is tedious in preparation process and low in efficiency are solved. The composite material provided by the invention has excellent mechanical properties and anti-aging and anti-fatigue properties, shows certain heat resistance during high-temperature heating, and shows great application potential in the field of high-end medical devices.

This invention relates to a low-cost method and system for preparing PEEK materials, belonging to the field of plastics production technology. The method includes: collecting the required quantity and types of raw materials; determining the required quantity of raw materials based on the type of raw material and the required quantity; determining the required quantity of end-capping agent based on the required quantity of raw materials; selecting a type of detergent based on the type of raw materials and the required quantity; adding difluoromonomers and bisphenol monomers to an organic solvent based on the required quantity of raw materials, and adding a salt-forming agent for polymerization; adding a phenylacetylene end-capping agent based on the required quantity of end-capping agent to obtain an initial oligomer; and washing and drying the initial oligomer based on the type of detergent to obtain a self-heating crosslinkable PEEK oligomer. This invention effectively reduces the preparation cost of polyether ether ketone (PEEK).

The invention belongs to the technical field of catalysis, and discloses an oxide-nitrogen-containing intrinsic microporous polymer nano composite carrier supported palladium catalyst as well as a preparation method and application thereof. The catalyst takes an inorganic nano oxide as a matrix, nitrogen-containing intrinsic microporous macromolecules are deposited on the surface of the matrix to form a composite carrier with a dual-distribution pore structure, the inorganic oxide provides macropores, and the macromolecules provide micropores; the nitrogen-containing intrinsic microporous polymer contains a tertiary amine structural unit, and nitrogen atoms of the tertiary amine structural unit are coordinated with palladium nanoparticles, so that anchoring and high dispersion of palladium are realized. The preparation method of the catalyst comprises the following steps: firstly synthesizing a nitrogen-containing intrinsic microporous polymer, then compounding the nitrogen-containing intrinsic microporous polymer with an oxide to prepare a carrier, and finally loading a palladium precursor and performing hydrogen reduction. The catalyst shows high conversion rate, high selectivity and excellent cycle stability in styrene oxide hydrogenation, acrylonitrile hydrogenation and phenylacetylene hydrogenation reactions, the preparation process is simple and convenient, and the catalyst has a good industrial application prospect.

The application provides a method for simultaneously synthesizing thioether compounds and nitrile compounds, and belongs to the technical field of organic synthesis; the thioamide compound, fluoride and acetonitrile are mixed, then a phenylacetylene precursor is added, so that the thioether compound and the nitrile compound are simultaneously synthesized at room temperature; the method is simple and fast, does not need transition metal catalysis, has a wide substrate range, the fluoride source used is cheap and easy to obtain, and does not cause environmental pollution; the method has the advantages of simple process, mild reaction condition, good universality and the like, and the yield of the synthesized thioether compound and nitrile compound is very high, the thioether compound and the nitrile compound can reach 98% at most, and has extremely high industrial popularization value.

The invention relates to a conjugated end group polyimide covalent organic framework material as well as a preparation method and application thereof. Two monomers including pyromellitic dianhydride and tetra (4-aminophenyl) porphyrin are used for preparing a polyamic acid covalent organic framework, 4-ethynyl aniline, 4-naphthylacetylene aniline and 4-(phenylacetylene) aniline are heated for condensation cyclization and end capping based on the polyamic acid covalent organic framework, and the conjugated end group polyimide covalent organic framework material (PI-COF) is prepared. The rich pore structure of the COF skeleton provides a rapid ion transmission channel, the transport of carriers is promoted, the electron cloud density of the COF skeleton is adjusted by the pi electron conjugation effect of the end-capping group, and a specifically distributed heterogeneous interface is constructed, so that the mobility of electrons is regulated and controlled; the material is loaded on a lithium-sulfur battery positive electrode host material to construct a confinement catalytic system, and can anchor polysulfide and catalyze the polysulfide to complete a reduced-order conversion reaction, so that the lithium-sulfur battery with high capacity and long cycle life is obtained.

The present application relates to the technical field of battery binders, in particular to a water-based binder and a preparation method therefor, and a carbon-coated aluminum foil. The water-based binder comprises a water-soluble monomer, an oil-soluble monomer, an amphiphilic monomer, a functional monomer, an initiator and a neutralizing agent, wherein the amphiphilic monomer comprises at least one of sodium vinylsulfonate, sodium styrene sulfonate, 2-acrylamido-2-methylpropanesulfonic acid, and N-vinylpyrrolidone; and the functional monomer comprises at least one of divinylbenzene, pyrrole, phenylacetylene, and 3,4-ethylenedioxythiophene. The water-based binder of the present application is formulated by compounding the water-soluble monomer, the oil-soluble monomer, the amphiphilic monomer and the functional monomer in proportion, thereby simultaneously improving the electrical conductivity of the binder, the wettability toward conductive carbon materials and aluminum foils, the adhesion to aluminum foils, etc.; and the water-based binder makes a battery prepared therefrom exhibit a good cycling stability, and is conducive to prolonging the service life of the battery.

The invention relates to a pyrrolo [2, 1-b] quinazoline-9 (1H)-ketone derivative and application thereof. The invention discloses a method for synthesizing pyrrolo [2, 1-b] quinazoline-9 (1H)-ketone based on cyclization reaction of 2-(phenylethynyl) quinazoline-4 (3H)-ketone and nitrostyrene and application of the pyrrolo [2, 1-b] quinazoline-9 (1H)-ketone, and belongs to the field of organic synthetic chemistry and medicinal chemistry. The synthesis method is realized through a 3 + 2 cyclization reaction of 2-(phenylethynyl) quinazoline-4 (3H)-ketone and nitrostyrene under base catalysis, the reaction condition is mild, the yield is good, and large-scale preparation is easy. The newly synthesized compound has obvious proliferation inhibition activity on various tumor cells such as gastric cancer, liver cancer, breast cancer, lung cancer, colon cancer, cervical cancer and the like, and can be used as a lead compound of an anti-tumor drug for preparing a novel anti-tumor drug.

The invention relates to the technical field of composite materials, in particular to a preparation method of a polyimide composite material. Comprising the following steps: S1, mixing phenylacetylene-terminated polyimide prepolymer powder with o-phenol phenolic resin, phenolic resin, a curing accelerator, a coupling agent and a release agent, stirring, adding a solvent to adjust the viscosity of a mixed system, and uniformly dispersing at a high speed to obtain a modified polyimide phenolic resin glue solution; and S2, dipping polyimide fiber filaments in the modified polyimide phenolic resin glue solution, performing, performing stepped heating curing, and finally cutting to obtain the polyimide composite material. The composite material is formed through a pultrusion process, has extremely high high temperature resistance, overcomes the defect that a traditional composite material cannot stably work for a long time at 350 DEG C, and has extremely high thermal stability and ageing resistance.

This invention provides (η) 4 (-Cyclopentadienyl)osmium-pentadienylene, its preparation method and application: Starting from osmium-pentadienylbenzene 1, it reacts with lithium triisopropylsilylacetylene to generate osmium-pentadienylbenzene 2, which is then reacted with lithium phenylacetylene to prepare the catalyst (η). 4 (-cyclopentadienyl)osmium-heptapentane 3; the preparation of this catalyst requires only two steps. Under light and oxygen atmosphere, under irradiation with a 48 W blue LED lamp, 1 mol% (η 4 (-Cyclopentadienyl)osmium pyropentadiene 3 can convert benzylamine into the target imine with a 76% NMR yield after 7 hours at room temperature.

The invention discloses a catalyst which comprises an N-heterocyclic carbene salt modified metal organic framework and palladium, and N-heterocyclic carbene is an imidazole derivative; palladium is fixed on the metal organic framework modified by the N-heterocyclic carbene salt in a coordination and deposition manner. The invention also discloses a preparation method and application of the catalyst. The invention also discloses a method for high-selectivity preparation of styrene from phenylacetylene, and the method comprises the following steps: in a hydrogen atmosphere, phenylacetylene and a substance A are subjected to a hydrogenation reaction to obtain styrene, the substance A is a catalyst or the substance A is a catalyst and cesium salt, and the catalyst is the catalyst or the catalyst prepared by the method. The catalyst provided by the invention has good thermal stability, catalytic activity, selectivity and long cycle service life; when the catalyst and cesium salt are used for semi-hydrogenation reaction of phenylacetylene, styrene can be prepared with high selectivity.

The application discloses an electrochemical synthesis method of a phenylacetylene phosphine oxide derivative, and comprises the following steps: the electrochemical synthesis method of the phenylacetylene phosphine oxide derivative provided by the application uses diphenyl phosphine oxide as a phosphorylating reagent, compared with a traditional preparation method, the diphenyl phosphine oxide as the phosphorylating reagent is not only cheap and easy to obtain, but also has higher atomic economy.

This invention belongs to the field of photocatalytic materials technology, specifically relating to a method and application of a one-step in-situ synthesis of a homo-heterojunction composite photocatalyst based on cyanophenylacetylene copper / phenylacetylene copper (CN-PhC₂Cu / PhC₂Cu). This invention achieves one-step in-situ synthesis of a homo-heterojunction composite photocatalyst with a tight interface structure under mild conditions by controlling the ratio of cyanophenylacetylene copper (CN-PhC₂Cu) to phenylacetylene copper (PhC₂Cu). This heterojunction effectively promotes exciton dissociation and photogenerated electron delocalization, significantly suppresses charge recombination, and improves visible light utilization efficiency. Experiments show that this composite photocatalyst exhibits excellent degradation performance for various water pollutants such as diclofenac (DCF) under visible light irradiation, possessing advantages such as high degradation efficiency, wide pH adaptability, and strong resistance to interference from coexisting ions. The method of this invention is simple and operates under mild conditions, providing new materials and technical support for efficient visible light-driven water pollution control.

The invention provides a method for synthesizing a benzimidazobenzothiazole compound, and belongs to the technical field of fine chemical synthesis. The preparation method comprises the following steps: mixing a 2-mercapto benzimidazole compound, fluoride, alkali, an additive, a molecular sieve and dichloromethane, then adding a benzyne precursor into the mixture, and synthesizing the benzimidazobenzothiazole compound at 110 DEG C; the method has the advantages of simplicity, convenience, rapidness, no need of transition metal catalysis, wide substrate range, cheap and easily available fluorine source, no environmental pollution and the like; the method has the advantages of being simple in process, good in universality and the like, the yield of the synthesized benzimidazobenzothiazole compound is as high as 90%, and the method has extremely high industrial popularization value.

The invention discloses RTM (Resin Transfer Molding) high-temperature-resistant benzoxazine resin, a composite material and a preparation method of the RTM high-temperature-resistant benzoxazine resin and relates to the technical field of composite material preparation, and the high-temperature-resistant benzoxazine resin is prepared from the following components in parts by weight: 50-70 parts of phenylacetylene type benzoxazine resin, 30-50 parts of aldehyde type benzoxazine resin and 0.5-3.0 parts of a catalyst. The prepared high-temperature-resistant benzoxazine resin has excellent high-temperature resistance, low viscosity and good manufacturability, the difficulty of preparing a composite material by using the benzoxazine resin is remarkably reduced, and the stability is good.

The invention discloses a room-temperature phosphorescent material of a phenylacetylene node substituted pyrene derivative and a preparation method of the room-temperature phosphorescent material, pyrene is used as a substrate, phenylacetylene substitution is selectively carried out at a node (2 position) of pyrene, compared with a pyrene derivative obtained by carrying out phenylacetylene substitution at an anti-node (1 position), the pyrene derivative obtained by carrying out phenylacetylene substitution at the anti-node (1 position) has the advantages that the conjugacy of a substitution site is destroyed; compared with the prior art, the room-temperature phosphorescent material has the advantages that the rotation degree of freedom between a substituent group and a pyrene core is maintained, so that spin-orbit coupling is enhanced, room-temperature phosphorescence of the pyrene derivative is started, and the obtained room-temperature phosphorescent material has the advantages of high luminous efficiency and long service life.

The invention belongs to the technical field of luminescent materials, and relates to a preparation method of a phenylacetylene oligomer / PVA (polyvinyl alcohol) composite phosphorescent material, which comprises the following step: preparing an oligomer organic room-temperature phosphorescent material from a host material and a guest material by a host-guest doping method. The host-guest doping method comprises the following steps: mixing and dissolving a host material aqueous solution and an oligomer guest, uniformly stirring, and naturally volatilizing a dry solvent to obtain the oligomer-based organic room-temperature phosphorescent material. The preparation of the oligomer guest comprises the following steps: carrying out high-temperature reaction on a guest material monomer to obtain a doped oligomer guest; the phosphorescence lifetime of the material is gt; the phosphorescence effect gt visible to naked eyes is achieved; 3s, the method is applied to the fields of information encryption, anti-counterfeiting identification and the like; the organic room-temperature phosphorescent time-dependent anti-counterfeiting material provided by the invention is stable in luminescent property and high in repeatability, and can provide clear and definite identification characteristics.

The invention discloses a method for synthesizing imidazopyridone compounds by inducing bifunctionalization of phenylacetylene through a light continuous flow scheme and application of the imidazopyridone compounds. In the reaction, N-(benzothiophene-2-ylmethyl)-2-bromo-N-cyano-2-methylpropanamide halogen is used as an initiator, free radicals are formed under light irradiation, and then the free radicals and hydrocarbon substances are subjected to a series cyclization reaction. Compared with the prior art, the compound prepared by the invention is catalyzed by an organic photocatalyst, is green, efficient and free of metal residues, has a certain bacteriostatic effect and has an application prospect in the aspect of bacteriostasis.

The invention discloses a preparation method and application of an MOFs (Metal-Organic Frameworks) derived hierarchical porous H-Co / NC material. The method comprises the following steps: adding deionized water, ammonia water and tetraethyl silicate into absolute ethyl alcohol, uniformly stirring, centrifuging to obtain a precipitate, dispersing the precipitate in a methanol solution of polyvinylpyrrolidone, stirring, collecting the precipitate, and dispersing the precipitate in the methanol solution to obtain a SiO2 methanol solution; the preparation method comprises the following steps: adding a cobalt salt solution and an organic ligand solution into a SiO2 methanol solution, stirring, centrifuging, washing and drying to obtain ZIF-67 (at) SiO2; and carrying out pyrolysis in an inert atmosphere, and then carrying out etching treatment to obtain the H-Co / NC material. The material has a high specific surface area, a large pore volume and a unique micropore-mesopore-macropore hierarchical pore structure, can effectively promote mass transfer and exposure of active sites, shows good catalytic performance in selective hydrogenation reaction of phenylacetylene, and has good industrial application potential, and the catalyst is easy to separate and recycle and can be recycled for multiple times.

This invention provides a method for preparing 4-phenylacetylene-based phthalic anhydride, comprising the following steps: phenylacetylene and phthalic anhydride undergo an oxidative coupling reaction in a solvent under the catalysis of a copper catalyst, tetramethylethylenediamine, and a base to obtain 4-phenylacetylene-based phthalic anhydride. The advantages of this invention are: This invention uses phenylacetylene and phthalic anhydride as main raw materials, and obtains 4-phenylacetylene-based phthalic anhydride through copper-catalyzed air oxidative coupling. The reaction steps are simple. The copper-catalyzed air oxidative coupling method used in this invention uses inexpensive raw materials, has higher selectivity, and a high reaction yield. Therefore, the preparation method described in this invention is novel, has a short reaction time, good selectivity, and low overall preparation cost with a high yield.

The application belongs to the technical field of medical materials, and discloses a triphenylamine conjugated polymer photosensitizer and a preparation method and application thereof. The application discloses a conjugated polymer, wherein the conjugated polymer comprises a first block and a second block. The conjugated polymer is constructed by introducing triphenylamine and phenylacetylene to form a hyperbranched conjugated skeleton, has an aggregation-induced emission characteristic, effectively inhibits an aggregation fluorescence quenching phenomenon, and significantly improves a singlet oxygen yield by enhancing an intersystem crossing efficiency. The polymer has both fluorescence imaging and photodynamic therapy functions, green fluorescence of the polymer can be used for real-time tracing of nanoparticle uptake and lysosome enrichment in cells, and provides an effective tool for realizing diagnosis and treatment integration.

The application belongs to the technical field of antibiotic adsorption materials, and discloses an adsorption material for treating antibiotics in wastewater and a preparation method and application thereof. The preparation method is as follows: dispersing phenylacetylene copper and nano-perylenic imide in an organic solvent, and then performing a hydrothermal reaction at 80-220 DEG C to obtain the adsorption material. The application uses phenylacetylene copper and perylenic imide as raw materials, and successfully realizes the supramolecular combination of phenylacetylene copper and perylenic imide by using a simple hydrothermal method to obtain a phenylacetylene copper / perylenic imide composite material. The preparation method is simple and easy to operate, and is conducive to popularization and large-scale production and use. The prepared phenylacetylene copper / perylenic imide composite material is not limited by external environmental factors such as pH and light, has excellent adsorption performance and stability, can directly realize efficient removal of antibiotics in wastewater through self-adsorption, and can be used as an adsorption material for treating antibiotics in wastewater.

The present application belongs to the field of catalysis, and particularly relates to a phenylacetylene semi-hydrogenation catalyst, a preparation method and application thereof. The present application is dedicated to solving the problems of complicated process and environmental unfriendliness caused by the need of sulfuration of transition metal catalysts for phenylacetylene semi-hydrogenation. The present application synthesizes a high-efficiency nickel-based alumina catalyst with double enhancement of auxiliary metal and carbon-based hydrogen buffer by using a grinding method, the catalyst does not need sulfuration, has high stability, in the phenylacetylene semi-hydrogenation reaction, the conversion rate can reach 100%, and the selectivity is as high as 99.9%. The method solves the complicated process of sulfuration of transition metal catalysts in the traditional industrial semi-hydrogenation catalytic process, is environmental friendly, and can be used in the production of environment-friendly high-efficiency phenylacetylene semi-hydrogenation catalysts.