44 results about "Ruthenium trichloride" patented technology

The invention relates to a RuSe2-MoSe2 / NF heterojunction bifunctional catalyst for fully hydrolyzed seawater as well as a preparation method and application of the RuSe2-MoSe2 / NF heterojunction bifunctional catalyst, and belongs to the technical field of seawater electrolysis electrocatalysis. The preparation method of the bifunctional catalyst comprises the following steps: (1) mixing deionized water and absolute ethyl alcohol, and magnetically stirring to obtain a mixed solvent; then adding sodium borohydride and selenium powder into the mixed solvent, and stirring until the mixture is completely dispersed to obtain a mixed solution; adding sodium molybdate dehydrate and ruthenium trichloride into the mixed solution, introducing high-purity nitrogen, replacing air, and continuing magnetic stirring to obtain a dark brown precursor mixed solution; and (2) completely immersing the pretreated nickel foam NF in the precursor mixed solution, carrying out hydrothermal reaction, cooling to room temperature after the reaction, taking out the nickel foam NF, washing with deionized water for 3-5 times, then washing with absolute ethyl alcohol for 3-5 times, and drying to obtain the nickel foam NF. The bifunctional catalyst provided by the invention can efficiently catalyze a hydrogen evolution reaction and an oxygen evolution reaction in seawater at the same time.

This invention discloses a composite nanozyme that enhances the clinical efficacy of oxaliplatin, its preparation method, and its application. The composite nanozyme consists of indium ruthenium nanozyme and an iliximab embedding and anchoring layer. The indium ruthenium nanozyme consists of indium ruthenium nanoparticles and a carbon-nitrogen framework, with the indium ruthenium nanoparticles loaded on the surface and within the pores of the carbon-nitrogen framework. The iliximab embedding and anchoring layer consists of a dithiol polyethylene glycol coating layer and iliximab. Preparation method: ZIF-8 is prepared by co-precipitation of zinc salt methanol solution and 2-methylimidazole methanol solution, followed by calcination to obtain the carbon-nitrogen framework. The carbon-nitrogen framework dispersion is then stirred in an oil bath with indium nitrate solution and ruthenium trichloride solution to prepare a nanozyme precursor, followed by calcination to obtain indium ruthenium nanozyme. The indium ruthenium nanozyme is dispersed in a dithiol polyethylene glycol solution, and iliximab solution is added dropwise. The resulting solid product is then dried. This invention can solve problems such as strong drug tolerance, insufficient intracellular accumulation, and severe tumor immunosuppression in oxaliplatin treatment.

The invention discloses a preparation method of a titanium anode for disinfecting a swimming pool. The preparation method comprises the following steps: carrying out surface pretreatment on a titanium substrate; preparing a coating solution A, a coating solution B, a coating solution C and a coating solution D, wherein the coating solution A is a chloroplatinic acid n-butyl alcohol solution with the concentration of 0.05-0.1 mol / L; the coating liquid B is an n-butyl alcohol mixed solution containing chloroplatinic acid and tantalum pentachloride, and the total metal ion concentration of the coating liquid B is 0.05-0.1 mol / L; the coating liquid C is an n-butyl alcohol mixed solution containing chloroplatinic acid and ruthenium trichloride, and the total metal ion concentration of the coating liquid C is 0.6-0.8 mol / L; the coating liquid D is a butanol solution containing ruthenium trichloride, and the total metal ion concentration of the coating liquid D is 0.3-0.5 mol / L; and the surface of the titanium substrate is sequentially coated with the coating liquid of all the coatings, drying and sintering treatment are conducted after coating of each coating, and a compact bottom layer, a middle buffer layer, a transition layer and a surface active layer are sequentially formed. According to the preparation method of the titanium anode for disinfecting the swimming pool, an optimized micro-crack structure which is controlled in crack number, small in size and uniform in distribution is constructed, so that the service life of the anode is remarkably prolonged while the efficient disinfecting capacity is guaranteed. The invention also provides the titanium anode prepared by the method.

The invention discloses an iridium-ruthenium diatom / sponge nickel composite material, a preparation method thereof and application of the iridium-ruthenium diatom / sponge nickel composite material in alkaline electro-catalytic hydrogen evolution. The preparation method comprises the following steps: weighing nickel acetate, dissolving hydrazine hydrate, chloroiridic acid and a ruthenium trichloride aqueous solution in deionized water to prepare a mixed solution, placing the mixed solution in a high-pressure reaction kettle, and carrying out a hydrothermal reaction to obtain the iridium-ruthenium diatom / sponge nickel composite material electrocatalyst. Compared with an original sponge nickel electrocatalyst, the iridium ruthenium diatom / sponge nickel composite material prepared by the invention has better alkaline electrocatalytic hydrogen evolution performance; the method has the advantages that the acidity of chloroiridic acid enables part of Ni atoms to be dissolved out to generate Ni vacancies, so that iridium-ruthenium diatomic nucleation sites are provided. The composite material can synergistically catalyze alkaline hydrogen evolution, the mechanism of the composite material provides alkaline H2O cracking sites for nickel sites, active hydrogen species are obtained, rapid desorption of hydrogen protons is further achieved through iridium-ruthenium diatoms, and therefore more excellent alkaline electrocatalytic hydrogen evolution performance is obtained.

The application discloses a loadable IrRu alloy nanosheet catalyst and a preparation method thereof. The IrRu alloy nanosheet has a nanometer and / or sub-nanometer size thickness. The preparation method is simple in process and good in universality. According to the requirements of the application type of the catalyst, a targeted carrier can be selected. Metal precursors of hydrate iridium chloride and trichloro-ruthenium, a reducing agent and a carrier are fully mixed in an organic solvent. Under the reaction condition of heating and stirring, the IrRu alloy nanosheet can be controlled to grow on the surface of the carrier. The catalyst shows excellent electrocatalytic oxygen evolution reaction (OER) performance in an acidic and alkaline electrolyte, respectively.

The invention provides a carbon-supported ruthenium-doped iron-based phosphide electrocatalyst as well as a preparation method and application thereof, and belongs to the field of electrocatalytic materials. The method comprises the following steps: mixing ruthenium trichloride, ferric trichloride and phenylphosphonic acid, and carrying out a coordination reaction to obtain an MOFs precursor; performing ultrasonic washing and purification on the obtained MOFs precursor to obtain a pure product; and placing the obtained pure product in a tubular furnace for calcination and carbonization to obtain the carbon-supported ruthenium-doped iron-based phosphide electrocatalyst. The invention also provides the carbon-supported ruthenium-doped iron-based phosphide electrocatalyst obtained by the preparation method. The carbon-supported ruthenium-doped iron-based phosphide provided by the invention has excellent electro-catalytic performance, and the overpotential for realizing electro-catalytic reduction hydrogen evolution is relatively low.

The application belongs to the technical field of hydrogen production catalysts for electrolysis of water, and particularly relates to a preparation method of a nitrogen-doped carbon quantum dot loaded ruthenium-based hydrogen evolution electrocatalyst, which comprises the following steps: (1) taking alkali lignin and urea, adding them into deionized water, mixing uniformly, then adding ruthenium trichloride, mixing uniformly, and performing hydrothermal reaction to obtain a precursor; (2) after the precursor is reduced to room temperature, freeze-drying and annealing are performed to obtain the nitrogen-doped carbon quantum dot loaded ruthenium-based hydrogen evolution electrocatalyst. The electrocatalyst prepared by the method has high catalytic activity and stability, and can particularly exhibit excellent catalytic performance in a full pH range (including acid, neutral and alkaline conditions, i.e. 0-14 pH values).

The application discloses an organic complex of different metals LTG-RuCe and a preparation method and application thereof, and belongs to the technical field of catalysts. The preparation method of the organic complex of different metals LTG-RuCe comprises the following steps: synthesizing a ligand HL by using methyl formylbenzoate, 2-acetylpyridine, ethanol, potassium hydroxide and ammonia water; synthesizing a ligand [Ru(HL)2]·(PF6)2 by using trichlororuthenium, the ligand HL, methanol, potassium hydroxide and HPF6; and synthesizing the organic complex of different metals LTG-RuCe by using cerium nitrate hexahydrate, the ligand [Ru(HL)2]·(PF6)2 and N,N-dimethylformamide. The organic complex of different metals LTG-RuCe synthesized by the application has high CO2 catalytic activity, good repeatability and a structure which is not easy to collapse; and the method for preparing the organic complex of different metals provided by the application has high yield and strong operability.

This invention discloses a Ru@Zr x Hf y This invention relates to the field of electrocatalysts and its preparation method. The method includes weighing x mmol zirconium tetrachloride, y mmol hafnium tetrachloride, and 1 mmol terephthalic acid, dissolving them in 40–60 mL of DMF to form solution A; adding 3–5 mL of formic acid to solution A to form solution B and then sonicating the solution; subjecting solution B to a hydrothermal reaction to obtain product C; washing and centrifuging product C with a mixed solvent and then drying it under vacuum to obtain powder; dispersing 200 mg of the powder in 30–40 mL of methanol to form solution D; dispersing 0.1–0.3 mmol ruthenium trichloride powder in solution D and stirring to obtain solution E; washing and centrifuging solution E and then drying it under vacuum to obtain a precursor; heating the precursor to 700 °C and holding it for 2–3 h, then cooling it to 300 °C and allowing it to cool naturally to room temperature to obtain Ru@Zr. x Hf y O2 / C electrocatalyst. It solves the problems of high cost of Pt-based catalysts, easy agglomeration and structural damage of traditional Ru-based catalysts, and poor stability due to interference from corrosive ions in seawater electrolysis.

The present application relates to the technical field of noble metal production, and discloses a drying method for preparing beta-type ruthenium trichloride, which adopts a drying and stirring device and comprises the following steps: step 1, beta-type ruthenium trichloride solution is added into a tank; step 2, a driving motor drives a stirring shaft to stir the solution at a rotating speed of 150-180 r / min, and meanwhile, an infrared lamp is used to heat the solution until the solution is skinned; step 3, when the solution is skinned, the rotating speed of the driving motor is adjusted to 100-120 r / min, the infrared lamp continues to heat, and the solution is slurried; step 4, when the solution is slurried, the rotating speed of the driving motor is adjusted to 50-80 r / min, the infrared lamp continues to heat, and the solution is agglomerated. Different rotating speeds of the motor are adopted at different stages of the material, the heat transfer efficiency of the material is ensured, the drying efficiency is accelerated, and the material consumption and energy consumption are reduced.

This invention discloses an efficient method for preparing p-cymene ruthenium iodide dimer. The method uses ruthenium trichloride as the ruthenium source, propylterpinene as the ligand precursor, and an alcohol solvent as the reaction medium. The target product is synthesized efficiently through a two-step continuous reaction. First, ruthenium trichloride and propylterpinene are reacted at a specific temperature to generate a dichloro(p-cymene)ruthenium dimer intermediate. Then, an iodide aqueous solution is added for reflux reaction to complete the replacement of chloride ions with iodide ions. Finally, high-purity p-cymene ruthenium iodide dimer is obtained after simple post-processing. This invention innovatively uses propylterpinene instead of traditional phellandrene, significantly improving the stability and purity of the raw materials and reducing production costs. The one-step integrated process simplifies the operation process, avoids the risk of organic vapor exposure, and improves production safety. Optimized reaction parameters and material ratios achieve a product yield of up to 99.8%, and the process is adaptable to large-scale production requirements.

The invention relates to the technical field of cell catalysts, in particular to a high-activity catalyst for a proton exchange membrane fuel cell and a preparation method of the high-activity catalyst. The preparation method comprises the following steps: firstly, carrying out pretreatment on Ti < 3 > C < 2 > T < x > MXene powder to obtain dispersion liquid; then reducing chloroplatinic acid and ferric nitrate through ascorbic acid by taking the nitrogen-doped carbon-coated platinum-iron alloy as a carrier, and carrying out high-temperature cracking in combination with dicyandiamide to generate a nitrogen-doped carbon-coated platinum-iron alloy in situ; loading iridium oxide on the surface through a hydrothermal method; and finally introducing ruthenium trichloride and phenanthroline, performing high-temperature pyrolysis to form a ruthenium-nitrogen coordination structure, and performing acid pickling, activation and 4-aminophenylboronic acid surface modification to obtain the final catalyst. Through MXene carrier optimization, multi-metal component collaboration and surface modification, the electrocatalytic activity and stability of the catalyst are remarkably improved, dependence on precious metal is reduced, and the catalyst is suitable for efficient operation of the proton exchange membrane fuel cell.

The invention discloses a synthesis method of a viloxazine metabolite 5-hydroxyl viloxazine hydrochloride, which comprises the following steps: (1) dissolving viloxazine hydrochloride, namely a raw material I, in a solvent, and reacting with Boc anhydride under an alkaline condition to obtain an intermediate II; (2) dissolving the intermediate II in a solvent, and performing oxidation reaction with an oxidant in the presence of a metal catalyst to obtain an intermediate III; the metal catalyst is methylrhenium trioxide or ruthenium trichloride; the oxidizing agent is hydrogen peroxide or urea peroxide; and (3) dissolving the intermediate III in a solvent, and reacting under an acidic condition to obtain a compound IV, namely the viloxazine metabolite 5-hydroxyl viloxazine hydrochloride. According to the method, synthesis of the 5-hydroxyl viloxazine hydrochloride is realized for the first time, the viloxazine hydrochloride is taken as a raw material, a brand new method for synthesizing the 5-hydroxyl viloxazine hydrochloride is designed, and the purity of the product can reach 98% or above.

This invention discloses a catalyst support, a preparation method, and a catalyst for preparing chlorine gas. The catalyst preparation materials include a catalyst support and an aqueous solution of ruthenium trichloride. The catalyst support is rutile titanium dioxide containing oxygen vacancies, which is prepared by subjecting anatase titanium dioxide to high-temperature ultraviolet treatment in an inert atmosphere. The preparation method for the catalyst involves impregnating the ruthenium trichloride aqueous solution onto the oxygen-vacancy-containing rutile titanium dioxide using an equal-volume impregnation method, drying at 80–120°C for 6–24 hours, and then heating at 250–350°C in an oxygen or air atmosphere for 6–16 hours. This catalyst overcomes the shortcomings of existing technologies, exhibiting a high reaction rate at a relatively low reaction temperature (300°C), and achieving a hydrogen chloride conversion rate close to the hydrogen chloride equilibrium conversion rate.

The invention discloses a composite ruthenium plating solution which comprises the following components in parts by weight: 1 part of a ruthenium-containing compound precursor, 8-15 parts of an organic solvent, 0.05-0.5 part of a nano conductive enhancer, 0.01-0.06 part of a binder and 0.01-0.06 part of a flatting agent, the ruthenium-containing compound precursor is any one of ruthenium trichloride hydrate, anhydrous ruthenium trichloride or ruthenium nitrate, the organic solvent is at least one of absolute ethyl alcohol, isopropanol, n-butyl alcohol and terpilenol, and the nano conductive enhancer is at least one of graphene, carbon nanotubes and acetylene black; the binder is at least one of PVDF (Polyvinylidene Fluoride), polyvinylpyrrolidone and ethyl cellulose; the flatting agent is polyether modified polysiloxane and modified acrylate. The composite ruthenium plating solution can effectively improve the conductivity and adhesive force of a plating layer and enhance the uniformity and wear resistance of the plating layer. And a ruthenium-plated product with large capacitance, low equivalent resistance and strong binding force between a plating layer and a tantalum substrate is obtained by acting on the tantalum substrate.

The invention provides a preparation method of a high-stability catalyst for producing formic acid by taking carbon dioxide and hydrogen as raw materials. According to the method, a ruthenium trichloride-loaded amide polymer is used as a precursor, is reduced by sodium borohydride and is activated for 2 hours in a nitrogen atmosphere at 300-400 DEG C to prepare the catalyst. Formate can be obtained by catalyzing a carbon dioxide hydrogenation reaction with the catalyst at 60-140 DEG C under the pressure of 6 MPa. According to the method, the stability of the catalyst is improved under the condition that the activity of the catalyst is not changed due to the change of the structure of the catalyst and the increase of the ruthenium nanocluster on the surface in the calcination process of the catalyst. Compared with the prior art, the method has the advantages that good catalyst stability can be kept in 45 cycles, and the method is a green, low-carbon and economical formic acid synthesis method.

The present application relates to polymeric triphenylphosphine ruthenium trichloride and its preparation method and application in catalytic preparation of 2,2'-dipyridyl, and belongs to the technical field of fine chemical industry. The polymeric triphenylphosphine ruthenium trichloride obtained by copolymerization of triphenylphosphine ruthenium trichloride-benzene-dimethylol formaldehyde is used as a catalyst to catalyze the pyridine dehydrogenation coupling reaction in a fixed bed reactor at 100-180 DEG C and 0.1-2.0 MPa pressure, and 2,2'-dipyridyl can be prepared at a highest yield of 92%. Compared with the existing method for preparing 2,2'-dipyridyl, the present application provides a method for preparing 2,2'-dipyridyl at a high yield under mild reaction conditions.

The application discloses a ruthenium-doped nanoneedle flake carbon-supported cobalt trioxide tetroxide self-supporting electrode and a preparation method and application thereof. A mixed solution of cobalt nitrate hexahydrate, ammonium fluoride, ruthenium trichloride and urea is prepared into a ruthenium-cobalt precursor through a hydrothermal method, and the precursor is calcined in air after drying, so as to obtain an RCO catalyst grown on a carbon cloth. The catalyst has a nanoneedle flake structure, can provide a high-quality reactant transmission channel, and exhibits excellent oxygen evolution reaction electrocatalytic activity and stability in alkaline / acid electrolyte. The catalyst can be used as a high-efficiency anode catalyst for an acid / alkaline solution water electrolysis device and has a good market prospect.

The utility model discloses a kind of equipment for ruthenium trichloride drying, belong to ruthenium trichloride processing equipment technical field. Including sandwich kettle body, temperature control heater, nitrogen purging unit, cryogenic trapping unit and discharge unit, the kettle cover is provided at the top of the sandwich kettle body, and the inside of the sandwich kettle body is rotationally provided with dispersion paddle;The dispersion paddle is connected with the stirring motor of kettle cover top;The bottom of the sandwich kettle body is provided with gate valve;Temperature control heater is set in the sandwich inside of sandwich kettle body;Nitrogen purging pipeline is installed on the inside upper portion of the inner bag of the sandwich kettle body;The nitrogen purging pipeline is connected to nitrogen pressure gas source;The cryogenic trapping unit includes the exhaust pipe connected with the inside upper portion of the inner bag of sandwich kettle body, and the exhaust pipe is connected to exhaust pump;The equipment for ruthenium trichloride drying of the utility model can ensure the drying quality of ruthenium trichloride, and can avoid material loss and cause surrounding environmental pollution.

The application provides a preparation method of ruthenium trichloride, and the preparation method comprises the following steps: (1) mixing waste ruthenium aluminum oxide catalyst and porous manganese dioxide catalyst, the specific surface area of the porous manganese dioxide catalyst is not less than 80 m 2 / g, the average particle size is 1-5 μm, and the mass ratio of the catalyst to the waste ruthenium aluminum oxide catalyst is (1-5):100; (2) placing the mixture in a vertical pyrolysis furnace with a mechanical stirring device, roasting the mixture under a CO2 atmosphere at 620-650 ℃ for 2-3.5 hours, and the stirring speed is 300-500 rpm; (3) cooling after the roasting is completed, carrying out hydrochloric acid leaching, solid-liquid separation, alkali melting, water immersion, acidification and oxidative distillation, and obtaining a ruthenium trichloride solution.

The application belongs to the technical field of polyoxometalate material preparation, and discloses a trinuclear ruthenium cluster constructed polyoxometalate nanocatalyst and application thereof. The preparation method of the catalyst comprises the following steps: adding a Keggin type polyacid, ruthenium trichloride and a 1,2,4-triazole ligand into a buffer solution, precisely controlling the pH of the solution, and inducing the self-assembly of the polyacid, ruthenium and the 1,2,4-triazole ligand under hydrothermal conditions to form a trinuclear ruthenium cluster active center. The catalyst provided by the application can be applied to the reaction process of electrocatalytic C-N coupling for preparing urea, and has high yield and high selectivity.

This invention discloses a cubic Ru / Co3O4 catalyst, its preparation method, and its applications, belonging to the field of electrode material technology. The method includes the following steps: S1, dissolving cobalt nitrate hexahydrate and hexadecyltrimethylammonium bromide in water, dissolving 2-methylimidazole in water, mixing and stirring to obtain a Co-MOF; S2, calcining the Co-MOF to obtain a Co3O4 cube; S3, dissolving the Co3O4 cube and ruthenium trichloride in water, and performing a hydrothermal reaction to obtain the cubic Ru / Co3O4 catalyst. This invention employs a preparation sequence of "calcination followed by hydrothermal loading," ensuring that Ru species are mainly distributed on the surface of the Co3O4 cube, avoiding Ru species embedding and agglomeration caused by high-temperature calcination. The resulting catalyst has a regular cubic morphology, uniform Ru dispersion, and high catalytic activity, showing broad application prospects in electrocatalytic oxygen evolution and hydrogen evolution.

The invention discloses a preparation method and application of a NiRu-RuO2 / NiO heterostructure catalyst, and the preparation method of the catalyst comprises the following steps: taking foamed titanium as a working electrode, placing the working electrode in a mixed aqueous solution prepared from nickel sulfate and ammonium sulfate according to a preset proportion, and preparing a Ni nano-particle precursor through an electro-deposition method; ruthenium trichloride is loaded on the Ni-based precursor through a soaking method, and NiRu alloy is formed through Ru + 3 and Ni oxidation reduction; and carrying out heat treatment in air to obtain the NiRu-RuO2 / NiO catalyst. According to the method, a small amount of Ru is introduced on the basis of Ni to form NiRu-RuO2 equilibrium * H adsorption, the NiO component is further introduced to accelerate the water dissociation step, meanwhile, the situation that * OH is directly adsorbed by Ru and consequently Ru is dissolved can be avoided through high * OH adsorption of NiO, and the technical problems that in the prior art, Ru is high in cost, poor in stability and low in efficiency are solved. The catalyst is applied to alkaline hydrogen evolution reaction and seawater electrolysis hydrogen evolution reaction and shows excellent electrocatalytic activity.

The present application relates to the technical field of nanomaterials, and particularly relates to carbon-doped Ru / RuO2 nanosheets, a preparation method and application thereof. In the present application, COF (2C-COF) with abundant carbon-carbon bonds is first prepared, C atoms are introduced into the 2C-COF as a carrier to play a carbon-doping role. Carbon doping can improve electronic conductivity, structural stability, dispersion of active sites, and coordination of catalytic effects, and is suitable for neutral and a wide pH value range. Then, 2C-Ru is prepared from the 2C-COF and a ruthenium trichloride solution. Finally, carbon-doped Ru / RuO2 nanosheets are obtained by calcining the 2C-Ru. The carbon-doped Ru / RuO2 nanosheets contain Ru / RuO2 heterojunctions, so that they have excellent HER and OER catalytic performance.

The invention discloses selenium-doped ruthenium dioxide and a preparation method and application thereof.Ruthenium trichloride and sodium selenite are dissolved in an alcohol solvent and then placed in an oil bath pan to react, a reacted sample is washed, loaded, dried and calcined, and finally selenium-doped ruthenium dioxide is successfully prepared. The prepared ruthenium dioxide is in a porous cluster shape, more active sites can be exposed, the activity and stability of the ruthenium dioxide are improved by regulating electron transfer through selenium doping and inducing reaction mechanism transformation, and the ruthenium dioxide shows excellent oxygen evolution performance when serving as a catalyst to be used for hydrogen production through water electrolysis and has application prospects in the field of electrocatalysis.

This invention relates to the field of electrocatalyst technology, specifically to a boron-doped ruthenium dioxide hollow fiber catalyst, its preparation method, and its application. Using sodium alginate as raw material, it is spun into calcium alginate fibers via a wet spinning process. The calcium alginate fibers are mixed with boric acid solution, washed, and dried to obtain boric acid-crosslinked calcium alginate fibers. These boric acid-crosslinked calcium alginate fibers are then thoroughly mixed with ruthenium trichloride solution and dried to obtain a boric acid-crosslinked ruthenium alginate fiber precursor. Subsequent pyrolysis converts ruthenium ions into ruthenium dioxide nanoparticles, transforming the boric acid-crosslinked alginate fibers into hollow fibers. Boron atoms are incorporated into the ruthenium dioxide lattice to form a boron-doped ruthenium dioxide oxygen evolution reaction electrocatalyst. Boron-doped ruthenium dioxide hollow fibers can be used as high-performance proton exchange membrane electrolyzers and water electrolysis catalysts, exhibiting high catalytic activity and good stability. The raw materials are widely available, require no expensive equipment, and can be prepared in large quantities.

This invention belongs to the field of electrocatalytic materials technology, and proposes a RuS2@Cu(OH)2 heterojunction, its preparation method, and its application. The method includes the following steps: mixing ruthenium trichloride, copper nitrate, thiourea, and citric acid in a molar ratio of 1:1~3:1.5~2.5:2~4, and carrying out a hydrothermal reaction to obtain a precursor; washing and drying the precursor to obtain the RuS2@Cu(OH)2 heterojunction material. This heterojunction can electrocatalyze the hydrolysis of polyimide to obtain the high-value product 2,2-dinitrobutane.

The application discloses a kind of phosphorus ruthenium supported globular carbon nitride photocatalyst and its preparation method and application.A kind of phosphorus ruthenium supported globular carbon nitride photocatalyst preparation method, comprising the following steps: melamine solution, cyanuric acid solution is mixed and stirred, to obtain globular precursor;Globular precursor is calcined to obtain globular carbon nitride;Globular carbon nitride is dispersed in solvent, add ruthenium trichloride hydrate, stir, add sodium borohydride reduction, to obtain ruthenium supported globular carbon nitride;Ruthenium supported globular carbon nitride is placed with hypophosphite under protective atmosphere calcination to obtain the phosphorus ruthenium supported globular carbon nitride.The phosphorus ruthenium supported globular carbon nitride photocatalytic material prepared by morphology control and catalyst support in the application has a large specific surface area, effectively inhibits the recombination of photo-generated electron-hole, improves the visible light response performance and photocatalytic activity of the material, and has good photocatalytic degradation of new pollutants and hydrogen production performance.

This invention relates to the field of electrocatalysis, and discloses a method for preparing and applying a seawater electrolysis catalyst based on a locally acidic environment. The current collector is simply cleaned, and Fe₂O₃ is further grown on it using a molten salt-assisted method. Finally, it is further modified using ruthenium trichloride plasma exchange to obtain a novel electrocatalyst (Ru / Fe₂O₃) with locally acidic conditions. 3‑x ). Ru / Fe2O 3‑x Not only does it exhibit excellent hydrogen evolution performance, but the localized acidic environment generated in this catalyst can also effectively suppress Ca2+ evolution. 2+ and Mg 2+ The precipitation occurs when Na is present. + Even when the cathode of the mediated asymmetric electrolytic cell is used, it can maintain stable operation for a long time.

This invention provides a method for preparing a ruthenium-manganese co-doped iridium dioxide anode catalyst, belonging to the field of hydrogen production through water electrolysis. In this invention, iridium trichloride, ruthenium trichloride, and manganese dioxide are dissolved in deionized water in a specific ratio. Polyvinylpyrrolidone K30 is added, and the pH is adjusted to 10.5-11.5 with sodium hydroxide solution. The mixture is then transferred to a high-pressure reactor, where oxygen is introduced to purge nitrogen, and the temperature is raised to 120-160°C. A pressurized oxidation reaction is carried out while controlling the oxygen partial pressure at 0.8-1.2 MPa. The resulting oxidation product is then sequentially washed with sodium hydroxide and deionized water by centrifugation, followed by ultrasonic washing with anhydrous ethanol, and finally dried to obtain Ir. x Ru y Mn 1‑x‑y O2 anode catalyst. This invention uses a pressure oxidation method to prepare ruthenium-manganese co-doped iridium dioxide catalyst, which significantly improves the catalyst's activity and stability; the obtained doped catalyst, compared with commercial IrO2 catalysts, exhibits improved activity and stability at 10 mA / cm². 2 The OER overpotential at current density decreased by more than 37 mV, and the mass activity retention rate reached more than 90% after 5000 cycles.