446 results about "Nonmetal" patented technology

The invention relates to the technical field of high-entropy oxide and electrocatalyst synthesis, in particular to a double-phase hollow high-entropy oxide catalyst and a preparation method and application thereof, the double-phase hollow high-entropy oxide catalyst comprises metal elements and non-metal elements, the metal elements comprise ruthenium, nickel, cobalt, iron, manganese and chromium; the non-metallic element is oxygen; the chemical formula of the double-phase hollow high-entropy oxide catalyst is NiCoFeMnCrRuO. The invention further discloses a preparation method of the catalyst. The double-phase hollow high-entropy oxide catalyst has a multi-shell hollow structure, provides a larger specific surface area and exposes a large number of reaction active sites, so that the double-phase hollow high-entropy oxide catalyst has lower overpotential, higher reaction efficiency and good electrochemical stability; meanwhile, the preparation method of the double-phase hollow high-entropy oxide catalyst is simple in process, low in cost, high in repeatability and suitable for industrial mass production, and has a wide application prospect.

The invention discloses a pipeline leakage detection device and method based on multi-modal data fusion, and relates to the technical field of pipeline safety monitoring. According to the device, modular sensor cabins (ultrasonic waves, LiDAR, millimeter wave radar and optics) are adopted for cooperative work, and high-precision leakage detection and positioning are achieved in combination with space-time registration, a cross-modal feature alignment network and a multi-level decision fusion mechanism. Through a dynamic weight distribution model and a multi-physical field joint inversion algorithm, the problems of low detection precision and poor anti-interference capability of a traditional single sensor are effectively solved. The method is suitable for detecting defects such as corrosion and leakage of metal and nonmetal pipelines, and has the advantages of high sensitivity, strong robustness and wide applicability.

The invention belongs to the field of synthesis of inorganic non-metallic materials, and particularly relates to an equimolar-ratio seven-element high-entropy oxide and a preparation process thereof. The preparation process comprises the following steps: putting seven oxide powder Al2O3, Y2O3, TiO2, ZrO2, NiO, CuO and CeO2 into a ball milling tank according to a molar ratio of 1: 1: 2: 2: 2: 2: 2: 2, adding absolute ethyl alcohol and zirconium oxide grinding balls, performing ball milling in a ball mill, and fully drying and sieving after ball milling to obtain mixed powder; carrying out tabletting treatment on the mixed powder to obtain a to-be-sintered green body; and putting the to-be-sintered green body into an alumina crucible, and putting the alumina crucible into a microwave oven for microwave sintering. According to the method, the equimolar-ratio seven-element high-entropy oxide (AlYTiZrNiCuCe) Ox with good solid solution is obtained, the crystallinity and element uniformity of the seven-element high-entropy oxide are improved, all the raw materials react completely, meanwhile, the process efficiency is high, and energy consumption is low.

The invention relates to the technical field of preparation of high-purity boron oxide, and discloses a purification method of high-purity boron oxide and a device thereof, and the purification method comprises the following steps: step 1, mixing crude boron oxide with a liquid metal alloy, and dissolving metal impurities through gradient temperature control; 2, applying ultrasonic treatment to the mixed system, introducing a vortex field, and stripping impurities on the surface of the boron oxide; 3, a liquid metal phase and a boron oxide solid phase are separated through cooperation of a magnetic field and a pulse high-voltage electrostatic field; 4, non-metal ion impurities are removed through a gradient porous ceramic adsorption bed; and step 5, melting boron oxide in vacuum and carrying out gradient cooling crystallization. By adopting the technical scheme of a Ga-I n-Bi-Er quaternary liquid alloy system, the technical effect of selective targeted removal of metal impurities is achieved, and compared with a liquid metal system depending on single phase solubility difference in the prior art, the defect that efficient chelating and dynamic settling separation of the impurities cannot be achieved at the same time is overcome.

The invention discloses a rare earth doped humic acid-based retarder, a preparation method and application thereof in grouting materials, and belongs to the technical field of inorganic non-metal building materials. The invention discloses a rare earth doped humic acid-based retarder, which is prepared from the following raw materials in parts by weight: 35 to 50 parts of rare earth modified humic acid, 10 to 15 parts of amphiphilic phosphonate dispersing agent, 5 to 8 parts of magnesium phosphate corrosion inhibition reinforcing agent, 8 to 12 parts of nano silicon dioxide and 3 to 5 parts of function regulator. The loading capacity of rare earth oxide in the rare earth modified humic acid is 8-12wt%. The retarder provided by the invention realizes effective retarding through an innovative hydration inhibition mechanism, and has significant advantages in temperature response characteristics, hydrolysis resistance and diversified regulation performance. The effects are synergistic, so that the grouting agent is particularly suitable for grouting construction under severe conditions such as high temperature and the like, and a more stable, reliable and flexible solution is provided for engineering.

The invention relates to the technical field of heat sink materials, in particular to a heat sink plate, a preparation method thereof and a power device. An upper convex arc groove is formed in the bottom of the heat sink plate, a composite layer is arranged in the upper convex arc groove, and the composite layer is attached to the radian of the upper convex arc groove; the composite layer is formed by multiple layers of metal-nonmetal composite powder, and the content of the metal powder in the multiple layers of metal-nonmetal composite powder is decreased progressively in the protruding direction of the upper protruding arc groove. The heat sink plate has a certain radian, and then in the application process, after the heat sink plate is heated, the metal-rich end extends, the radian of the heat sink plate is reduced, the attaching area of the heat sink plate and a device is increased, the heat conductivity is increased, and the chip temperature is reduced.

The invention discloses a vacuum cup with a metal shell and an inner container directly compounded and a preparation method. The vacuum cup comprises a metal shell, an inorganic non-metal inner container and a transition layer located at openings of the metal shell and the inorganic non-metal inner container. The transition layer is at least one of a metal transition layer, a metal solder transition layer or a glass solder transition layer, the thermal expansion coefficient of the transition layer is between the thermal expansion coefficient of the metal shell and the thermal expansion coefficient of the inner container, and the thermal expansion coefficient meets the metal shell gt; a transition layer gt; an inorganic nonmetal liner; when the transition layer is a metal transition layer, the relative difference K between the transition layer and the thermal expansion coefficient of the metal shell is less than 60%; when the transition layer is a metal solder or glass solder transition layer, K is less than 20%; the total thickness of the transition layer is smaller than 1 mm. By reasonably controlling the material and thermal expansion coefficient of the transition layer, a middle structure with a deformation inhibition function is formed, thermal expansion deformation of the metal shell is relieved, the welding stress is reduced, the cracking risk is reduced, and reliable and direct compounding of the metal shell and the inorganic nonmetal inner container is achieved.

The invention provides a fuel cell bipolar plate coating and a preparation method thereof, and relates to the technical field of fuel cells, the fuel cell bipolar plate coating comprises a metal bottom layer, a transition layer and a surface layer which are sequentially deposited on a bipolar plate base material, the metal bottom layer is one of Ti, Cr, Zr, Nb, Ta, W and Mo, the transition layer is one or more of metal Ti, Cr, Zr, Nb, Ta, W and Mo corresponding ions, and the surface layer is one or more of metal Ti, Cr, Zr, Nb, Ta, W and Mo corresponding ions. The surface layer is composed of one of non-metal components C, N and Si. Through the synergistic effect of all the layers, the conductivity, corrosion resistance, mechanical strength and long-term stability of the fuel cell bipolar plate are remarkably improved.

The present application relates to the technical field of nuclear power plant performance testing and discloses a method for assessing the remaining life of a bursting disk in a large-caliber vacuum system of a nuclear power plant, comprising the following steps: S1, obtaining a first sample of a reference bursting disk after a first fatigue test, obtaining a second sample of a bursting disk to be assessed, and performing a bursting test on the first and second samples to obtain a life coefficient; S2, performing a non-metallic material state test on non-metallic debris in the first and second samples after the test, obtaining non-metallic test results of similar non-metallic materials, and obtaining a first remaining life of the bursting disk to be assessed; S3, performing a metallic material state test on metallic debris in the first and second samples after the test to obtain a second remaining life of the bursting disk to be assessed; S4, obtaining a third sample of the bursting disk to be assessed, and performing a second fatigue test to obtain a third remaining life of the bursting disk to be assessed; and S5, obtaining a final remaining life of the bursting disk to be assessed based on the life coefficient, the first, second, and third remaining lives.

This invention discloses a core-shell structured lithium-rich manganese-based cathode material with the general formula Li. 1+a Mn x Co y Ni z O 2‑b‑d (XO c ) b X d It has a core-shell structure, with the core being a disordered polyanion-doped lithium-rich manganese-based material, Li. 1+a Mn x Co y Ni z O 2‑b (XO c ) b The outer shell is made of lithium-rich manganese-based material Li, which is doped with gradient non-metallic ions. 1+ a Mn x Co y Ni z O 2‑d X d This application also provides a method for preparing a core-shell structured lithium-rich manganese-based cathode material. The method employs a combination of rapid Joule heating and surface plasma cleaning to prepare the aforementioned core-shell structured lithium-rich manganese-based cathode material, achieving a bulk disordered structure design with polyanion doping and a core-shell structure with surface gradient non-metallic ion doping. Specifically, the bulk polyanions can immobilize transition metal elements to suppress their migration to the lithium layer, reducing harmful consumption of active sites and stabilizing the crystal structure. Furthermore, the strong bond energy between the surface non-metallic elements and the transition metal elements can suppress transition metal dissolution during cycling, reducing irreversible oxygen oxidation and inhibiting harmful phase transitions.

A gas leakage rate testing apparatus and method for a nonmetal hydrogen conveying pipeline, and a nonmetal hydrogen conveying pipeline volume expansion amount testing method. The gas leakage rate testing apparatus comprises: a test member (1), in which a test cavity (16) adapted to place a pipeline (31) to be tested is formed, wherein a sealed test cavity (11) is formed after said pipeline (31) is placed in the test cavity (16); a calibration cavity (21) selectively communicated with the test cavity (11); a first gas filling assembly (10) selectively communicated with the calibration cavity (21) so as to be adapted to inject gas of a first set pressure into the calibration chamber (21); a measurement unit (9) configured to measure the pressure and temperature in the calibration cavity (21) and the pressure and temperature in the test cavity (11), and calculate the volume of the test cavity (11); and a leakage rate test unit configured to acquire a pressure change value of the test cavity (11) within a preset time interval, and calculate the gas leakage rate of said pipeline (31). The technical problem that gas leakage rate testing is inaccurate due to the measurement of the volume of the test cavity (11) being difficult or inaccurate is solved. In the nonmetal hydrogen conveying pipeline volume expansion amount testing method, after gas leakage rate testing is ended, a measurement unit (9) calculates a second volume of a test cavity (11) on the basis of a second formula, and on the basis of the difference between a first volume and the second volume, calculates the volume expansion amount of a pipeline (31) to be tested.

A gas permeation and leakage rate testing device and method for a non-metallic hydrogen transmission pipe. The device includes: a testing member formed with a testing cavity adapted to placing a to-be-tested pipe, and the testing cavity being formed with a sealed testing chamber after the to-be-tested pipe is placed therein; a calibration chamber selectively communicated with the testing chamber; a first gas-filling assembly selectively communicated with the calibration chamber to be adapted to filling a gas into the calibration chamber to a first set pressure; a measuring unit configured to measure pressures and temperatures in the calibration chamber and the testing chamber, and to calculate a calculated volume of the testing chamber; and a permeation and leakage rate testing unit configured to obtain a pressure change value of the testing chamber in a preset time interval and calculate a gas permeation and leakage rate of the to-be-tested pipe.

The invention relates to the technical field of environmental governance, and particularly discloses a bismuth ferrite-based photo-Fenton catalyst and application thereof. The bismuth ferrite-based photo-Fenton catalyst comprises a bismuth ferrite matrix or a catalyst, the bismuth ferrite matrix comprises Fe (NO) 9HO and Bi (NO) 5HO in a molar ratio of 1: 1-1: 1.1, the catalyst is one of metal-doped bismuth ferrite, non-metal-doped bismuth ferrite or a bismuth ferrite composite material, and the loading amount of metal in the metal-doped bismuth ferrite is 0.5-5 wt%. Fe (NO) 9HO and Bi (NO) 5HO are adopted as precursors, the stoichiometric ratio of a bismuth ferrite matrix can be regulated and controlled, generation of impurity phases is inhibited, and it is ensured that the matrix has a complete perovskite structure and a good photoresponse characteristic; meanwhile, modification means such as metal doping, non-metal doping or composite carrier loading are adopted.

The invention discloses a cleaning composition as well as a preparation method and application thereof, and relates to the technical field of cleaning fluid. The invention relates to a low-k passivating agent which comprises the following components in percentage by mass: 10%-35% of an alkaline compound, 1%-40% of fluoride, 0.01%-10% of a cyclophosphazene compound, 0.01%-10.00% of a low-k passivating agent, 20%-80% of an organic solvent, 0.0001%-10.00% of a surfactant and the balance of water. By compounding the alkaline compound, the fluoride, the cyclophosphazene compound, the low-k passivator, the organic solvent, the surfactant and the water, various residues generated in the back-end process of semiconductor manufacturing can be effectively removed, and meanwhile, the contacted metal and non-metal materials cannot be obviously corroded. The etching rate on metal materials such as copper, tungsten and tantalum nitride and non-metal materials such as low-dielectric-constant insulating materials (BD) is low, and the operation window is large.

The invention relates to a heat preservation container and a manufacturing method thereof.The heat preservation container comprises a non-metal container body, a metal sealing component and a first connecting solder layer, the non-metal container body comprises a shell and an inner container, the top ends of the shell and the inner container are fixedly connected in a sealed mode, and a vacuumizing opening is formed in the end face of the bottom end of the shell; the metal sealing component is of a hollow structure with one end open and the other end closed in the circumferential direction, and the open end of the metal sealing component is an annular embedding end which is matched with the vacuumizing opening in shape and can be inserted into the vacuumizing opening in a clearance fit mode. The first connecting solder layer is arranged between the outer wall of the annular embedded end and the inner wall of the vacuumizing opening, and the non-metal device body and the metal sealing component are connected through the first connecting solder layer. According to the heat preservation container, the shell and the inner container are integrally formed and manufactured through the non-metal materials which are not prone to being corroded by acidic substances, the problems that the metal materials are prone to being corroded by the acidic substances and the surface layers are prone to being scratched in the cleaning process are solved, and the heat preservation container can store the acidic substances while improving the heat preservation and cold preservation effects.

The utility model relates to the technical field of semiconductor manufacturing, and provides a protective cover, a furnace tube base and furnace tube equipment. The protection body is made of a non-metal material; the protection body is provided with a protection surface, and the protection surface is used for being attached to the side face, located in the process cavity, of the base body. Optionally, a through hole is formed in the protection body, and the through hole is formed in a penetrating mode in the direction perpendicular to the protection face. The protective cover is used for covering the base body and isolating the base body from cleaning gas during cleaning, so that the phenomenon that the base body of the furnace tube is corroded is improved, the situation that a process cavity is polluted by metal ions, so that a product is scrapped due to electrical abnormality is prevented, and large economic loss is avoided.

The present invention is directed to piezo photocatalytic process for the production of hydrogen from water, wherein the process comprises the steps of: (a) providing non-metal-doped barium titanate which includes at least one defect; (b) contacting the non-metal-doped barium titanate provided in step (a) with water to form a mixture; and (c) subjecting the mixture formed in step (b) to: (i) actinic radiation; and (ii) mechanical force, to produce hydrogen from the water, as well as non-metal-doped barium titanate and methods of production thereof.

The utility model discloses a Faraday cup of an ion receiver of a thermal ionization mass spectrometer, which comprises a non-metal receiving support, a non-metal receiving electrode and a pair of external fixing metal plates, the non-metal receiving support is concaved inwards to form a notch communicated with the outside, the non-metal receiving electrode is arranged in the notch, and the external fixing metal plates are fixed on the non-metal receiving support. The pair of external fixing metal plates are oppositely fixed on the two side surfaces of the non-metal receiving bracket, and the external fixing metal plates and the non-metal receiving bracket are encircled to enable the notch to only have a state that the top is communicated with the outside, so that the whole Faraday cup retains the rigidity of metal, the outside is not easy to deform, and the service life of the Faraday cup is prolonged. The non-metallic material is adopted in the device, so that the device has the characteristic of not rebounding ions, interference on ion measurement can be effectively reduced, and the measurement accuracy is improved.

The application relates to an in-situ composite preparation method of a calcium phosphate / boron nitride high-temperature wave-absorbing material and application thereof, and belongs to the technical field of wave-absorbing materials. The method solves the problem that traditional insulator materials boron nitride have no electromagnetic wave absorption capacity. The method comprises the following steps: preparing Ca3(PO4)2 ion oligomers; preparing Ca3(PO4)2 ion oligomer gel; preparing a transparent hot solution of melamine diboric acid, then mixing the transparent hot solution of melamine diboric acid with the Ca3(PO4)2 ion oligomer gel, and then cooling, centrifuging, drying and sintering, so that the preparation is completed. The calcium phosphate / boron nitride high-temperature wave-absorbing material is prepared by adopting the in-situ composite mode, the process is simple, the cost is low, the process is green and pollution-free; the wave-transparent boron nitride material is converted into a wave-absorbing material through the simple composite of inorganic non-metallic substances, the balanced magnetic property and polarization effect of the material are matched with each other, high-strength and wide-band electromagnetic wave absorption performance is finally realized, and meanwhile, the lightweight and high-temperature-resistant characteristics of boron nitride are maintained.

This ceramic structure has a first layer having first crystal particles, a second layer positioned on the first layer and having second crystal particles, and an amorphous layer positioned between the first layer and the second layer. The first crystal particles and the second crystal particles each contain one or more metal elements that are selected from among Al, Si, Ti, Cr, Zr and Y, and one or more non-metallic elements that are selected from among N, C and B. The first crystal particles and the second crystal particles are composed of the same compound. The amorphous layer contains a metal element and a non-metal element.

This invention relates to the field of solid-state battery technology, and particularly to a composite solid-state electrolyte material, its preparation method, and its application. The composite solid-state electrolyte material contains a crystalline phase substance with the general chemical formula: B%A a RE b X 1 c D g +C%A d M e X 2 f D h Where A represents charge carriers; RE represents rare earth elements; M represents metallic elements; X represents... 1 X 2 D is a halide anion; A is an anion doping element or group; a RE b X 1 c D g and A d M e X 2 f D h It is a crystalline phase substance; B% is A a RE b X 1 c D g The mass fraction of the composite solid electrolyte material; C% is A d M e X 2 f D h The mass fraction of the composite solid electrolyte material is defined as follows: 0 ≤ a ≤ 3, 0 < b ≤ 1, 0.5 < c ≤ 12, 0 < d ≤ 5, 0 < e ≤ 2, 1 < f ≤ 20, 0 ≤ g ≤ 4, 0 ≤ h ≤ 5; 85 < B + C < 98, 10% < B% ≤ 85%; 10% < C% ≤ 85%, 0.2 ≤ C / B ≤ 10. The composite solid electrolyte material of this invention includes crystalline and amorphous phase components, giving it high ionic conductivity. The use of moisture-resistant non-metallic halide components instead of traditional halides and oxyhalides in the raw materials also provides it with good air stability.

An object of the present invention is to provide a plasma a processing method capable of removing complex depositions of metal and non-metal deposited in a processing chamber by etching processing of a wafer to reduce generation of particle due to the depositions, in a plasma processing method for plasma-etching the wafer such as a semiconductor substrate.According to the present invention, there is provided a plasma processing method for plasma-etching a sample in a processing chamber and plasma-cleaning the inside of the processing chamber, the method comprising: an etching step for plasma-etching a predetermined number of the samples; a metal removing step of removing a deposited film containing a metal element by using a plasma after the etching step; and a non-metal removing step of removing the deposited film containing the non-metal element by using a plasma different from the plasma in the metal removing step, in which the metal removing step and the non-metal removing step are repeated twice or more.

The application relates to the field of refractory materials, in particular to a surface treatment process for the bottom of an aluminum electrolysis cell, which solves the problem that composite metal objects are difficult to form a dense structure with non-metallic inorganic matters such as Si3N4 and SiC, and that more micropore gaps lead to the penetration of aluminum liquid and electrolyte into the refractory material and the damage of the refractory material, and the surface treatment process comprises the following steps: preparing a boric acid refractory brick, roughening the surface of a refractory bearing material, coating a permeable material on the outside of the refractory bearing material, the thickness of the permeable material being 1-10 mm, heat treatment at 1300-1420 DEG C for 5-12 h, removal of the excess permeable material to obtain a refractory material precursor, placing a barrier material on the surface of the refractory material precursor, forming a barrier layer through cold isostatic pressing, heat treatment, formation of a high-density impedance layer on the surface of the refractory material precursor, and completion of the surface treatment. The application can realize the combination of dense inorganic non-metal and metal, and improve the corrosion resistance of the refractory material.

This invention provides a method for preparing two-dimensional TMDs alloys using non-metallic chalcogenides. It is a modified CVD method in which a non-metallic chalcogenide containing two chalcogen elements replaces the elemental chalcogenides as the non-metallic growth source. The ratio of the two chalcogen elements in the TMDs alloy can be changed by adjusting the weight ratio of the non-metallic growth source to the metallic growth source. Adding 40 mg of WO3 and 55, 38, 26, and 15 mg of SeS2 respectively yielded WS... 0.96 Se 0.04 WS 0.65 Se 0.35 WS 0.5 Se 0.5 WS 0.27 Se 0.73 Four types of TMD alloy single crystals can be fabricated. Large-size single crystals and large-area thin films of two-dimensional TMD alloys with tunable chemical composition and uniform layer number can be prepared. This provides more options for optoelectronic devices with specific spectral responses, field-effect transistors, and flexible electronic devices.

The invention discloses an oxygen-controlled inversely-proportional alkaline slag system 2.25% Cr-1% Mo-0. 25V steel welding rod for a hydrogenation reactor and a preparation method thereof, and belongs to the technical field of welding materials. The problem that a 2.25% Cr-1% Mo-V steel welding rod is poor in low-temperature toughness is solved. The welding rod is composed of a core wire and a coating on the surface of the core wire. The coating comprises CaF2, CaCO3, iron powder, quartz, 45 # ferrosilicon, electrolytic manganese, metal chromium powder, molybdenum powder, nickel powder, magnesium powder, titanium-boron alloy and sodium carbonate. A CaF2-CaO-SiO2 type inverse-proportion low-hydrogen alkaline slag system is adopted, so that non-metallic inclusions of deposited metal can be reduced, and weld joints are purified; and magnesium powder and MgO which has a deoxidizing effect and reacts with Mg and O are added into the coating, so that the alkalinity of the slag is improved, the inclusions in the slag are further reduced, the purity of the welding seam is improved, and the low-temperature impact toughness of deposited metal is improved. The welding rod is used for hydrogenation reactor welding.

The invention relates to the technical field of high-efficiency refining of molten metal silicon, and discloses a high-efficiency refining process of molten metal silicon under the synergistic effect of multiple fields, which comprises the following steps: S1, placing molten metal silicon in a refining device which can apply a controllable temperature gradient field and an external electric field; s2, by regulating and controlling the size and the direction of the temperature gradient field, metal impurities are directionally migrated to a low-temperature area in the melt under the action of thermal diffusion and are enriched; s3, an external electric field is applied at the same time, and non-metal impurities are directionally migrated to an electrode area and enriched under the electromigration effect by regulating and controlling the type, intensity and frequency of the electric field; s4, performing cooperative control on the temperature gradient field and an external electric field; and S5, carrying out physical isolation or online removal on the enriched impurity region. Compared with the prior art, the device and the method have the advantages that metal and nonmetal impurities are respectively driven to directionally migrate and enrich, so that efficient separation of the impurities and deep purification of the silicon melt are realized.

This invention discloses a method for preparing Cu@C composite materials for in-situ Fenton oxidation systems and their applications, belonging to the field of inorganic non-metallic materials technology. The method involves placing copper acetate monohydrate in a high-temperature tube furnace, purging the furnace with inert gas, then raising the furnace temperature to 300–450°C at a rate of 4–10°C / min in an inert atmosphere, followed by raising it to above 550°C at a rate of 1–4°C / min, holding the temperature at this point for 0.5–2 hours, and finally cooling it to room temperature to obtain a Cu@C composite material with a "core-shell" structure. This invention utilizes the direct high-temperature pyrolysis of copper acetate monohydrate in an inert atmosphere to obtain a "core-shell" structured Cu@C composite material. Copper acetate plays a dual role as both a Cu and C source, avoiding the disadvantages of the H2 reduction method, such as easy explosion, high cost, and difficulty in large-scale production. This method is simple, safe and controllable, low-cost, green and pollution-free, and can be produced on a large scale. The prepared Cu@C composite material has a large specific surface area, high catalytic activity, and good cycle stability, and can be applied to in-situ H2O2 production and in-situ Fenton catalysis.

The application discloses a non-metal modified hydrogen evolution material and a preparation method. The Sx-CoPTA is prepared by a ligand regulation strategy, a precursor solution is prepared from cobalt nitrate hexahydrate, 4,4-biphenyldicarboxylic acid, 1,4-benzenedithiol, N,N-dimethylformamide, ethanol and water, and during the preparation, ultrasonic treatment, stirring, washing, drying and low-temperature centrifugal reaction treatment are carried out, and finally, the S-CoPTA is generated, and the hydrogen evolution electrode material is synthesized by smearing the Nafion solution on the nickel foam. The catalytic electrode material S1-CoPTA prepared by the application has a large specific surface area of the MOF material, breaks the original symmetrical structure of the MOF material, effectively improves the conductivity of the MOF material, and further improves the hydrogen evolution efficiency of the electrode material, and has a center structure and a function simulation similar to the [Fe-Fe] hydrogenase.

The present invention relates to an Fe-Ni alloy consisting of C: 0.001 to 0.2 mass%, Si: 0.001 to 0.2 mass%, Mn: 0.005 to 0.7 mass%, Ni: 30.0 to 45.0 mass%, Cr: 0.3 mass% or less, Al: 0.001 to 0.1 mass%, Ti: 0.001 to 0.020 mass%, O: 0.007 mass% or less, Mg: 0.0030 mass% or less, N: 0.010 mass% or less, Ca: 0.0015 mass% or less, Na: 0.00005 to 0.001 mass%, the balance being Fe and unavoidable impurities, wherein non-metallic inclusions containing CaO-SiO2-Al2O3-MgO-MnO-Na2O-based complex oxides as essential components, and further containing one or more non-metallic inclusions of CaO, MgO, MgO·Al2O3, MnO·SiO2, and Na2O as optional components, wherein the number ratio of CaO-SiO2-Al2O3-MgO-MnO-Na2O inclusions is 40% or more in all non-metallic inclusions, thereby producing an Fe-Ni alloy having excellent surface properties.

The present invention discloses a MXene two-dimensional material and a preparation method and application thereof, wherein the chemical formula of the MXene two-dimensional material is expressed as M n+1 (X a Y 1‑a ) n , where M is selected from a transition metal element, X is selected from one or more of carbon, nitrogen, and boron, and Y is selected from one or more of phosphorus, oxygen, sulfur, selenium, or tellurium; 0<a<1, and n is between 1 and 4. The preparation method of this two-dimensional MXene material comprises reacting a MXene material containing a halogen element functional group with a single element, hydride, or metal salt of phosphorus, oxygen, sulfur, selenium, or tellurium. This invention produces a novel MXene material that achieves the doping of non-metallic elements at the X position, providing a new approach to multi-element manipulation of MXene materials.