117 results about "Ruthenium trichloride" patented technology

The invention relates to an enzyme reagent, glucose electrochemical test paper and a preparation method thereof, and belongs to the technical field of electrochemical detection. The glucose electrochemical test paper comprises an electrode substrate and an enzyme reagent arranged on the electrode substrate, the enzyme reagent is prepared from the following components in parts by mass: 5 to 7 parts of buffer solution, 0.01 to 0.2 part of hexamine ruthenium trichloride, 0.01 to 0.1 part of quinone compound, 0.1 to 1.2 parts of metal organic framework immobilized glucose dehydrogenase and 0.2 to 0.8 part of film-forming agent. According to the glucose electrochemical test paper, the detection accuracy of glucose can be improved, and the problems of large interference, small linear range, insensitive detection and the like in the prior art are improved or solved.

The invention relates to the technical field of electrocatalysts, in particular to a boron-doped ruthenium dioxide hollow fiber catalyst and a preparation method and application thereof. The preparation method comprises the following steps: preparing calcium alginate fibers from sodium alginate as a raw material through a wet spinning process, mixing the calcium alginate fibers with a boric acid solution, washing and drying to obtain boric acid cross-linked calcium alginate fibers, fully mixing the boric acid cross-linked calcium alginate fibers with a ruthenium trichloride solution, drying to obtain a boric acid cross-linked ruthenium alginate fiber precursor, and carrying out pyrolysis treatment to obtain the boric acid cross-linked ruthenium alginate fiber. Ruthenium ions are converted into ruthenium dioxide nano-particles, boric acid cross-linked alginate fibers are converted into hollow fibers, and boron atoms are doped into ruthenium dioxide crystal lattices to form the boron-doped ruthenium dioxide oxygen evolution reaction electrocatalyst. The boron-doped ruthenium dioxide hollow fiber can be used as a proton exchange membrane electrolytic bath and an electrolyzed water catalyst with excellent performance, and has relatively high catalytic activity and good stability. The raw materials are wide in source, expensive equipment is not needed, and large-scale preparation can be performed.

The invention discloses a ruthenium-doped nanoneedle sheet carbon-loaded cobaltosic oxide self-supporting electrode as well as a preparation method and application thereof. The preparation method comprises the following steps: preparing a ruthenium-cobalt precursor from a mixed solution of cobalt nitrate hexahydrate, ammonium fluoride, ruthenium trichloride and urea through a hydrothermal method, drying, and calcining in air to obtain the RCO catalyst grown on the carbon cloth. The catalyst has a nanoneedle sheet type structure, can provide a high-quality reactant transmission channel, shows excellent oxygen evolution reaction electrocatalytic activity and stability in alkali / acidic electrolyte, can be used as an efficient anode catalyst for acid and alkaline solution water electrolysis devices, and has a good market prospect.

The invention belongs to the technical field of material preparation, and discloses a preparation method of an alloy film loaded noble metal electrode for alkaline hydrogen evolution, and the preparation method comprises the following steps: firstly growing a nickel-iron alloy film on foamed nickel through constant-current deposition, then dipping in a ruthenium trichloride aqueous solution, reducing trivalent ruthenium ions into metal ruthenium under the action of the foamed nickel, and finally obtaining the metal electrode loaded with noble metal. The sample is anchored on the alloy film in the form of ruthenium nano-particle clusters, and the sample has ultralow ruthenium loading capacity. The obtained alloy film is smooth and uniform, uniform distribution of active sites is facilitated, electron transfer is accelerated, meanwhile, the ruthenium nanocluster with the proper size is loaded by controlling the dipping condition, the hydrogen evolution reaction is promoted, the hydrogen adsorption process is optimized through the synergistic effect between the ruthenium nanocluster and the nickel-iron alloy, and the hydrogen adsorption efficiency is improved. And the hydrogen evolution reaction kinetics of the material is improved. The obtained self-supporting catalyst has excellent performance which is superior to that of a Pt / C catalyst, still keeps excellent stability under industrial-grade large current density, and has a wide application prospect.

The invention discloses cobaltosic oxide loaded ruthenium dioxide fibers as well as a preparation method and application thereof, and relates to the technical field of electrolyzed water. The preparation method comprises the following steps: carrying out wet spinning on sodium alginate and calcium chloride to prepare calcium alginate fibers, then sequentially reacting the calcium alginate fibers with hydrochloric acid and cobalt chloride, calcining to obtain cobaltosic oxide fibers, reacting the cobaltosic oxide fibers with ruthenium trichloride, and carbonizing to obtain the cobaltosic oxide loaded ruthenium dioxide fibers. According to the invention, Co3O4 is utilized to transfer electrons to RuO2, so that the valence state of ruthenium is reduced, and dissolution of high-valence ruthenium in an acidic OER process can be inhibited, so that the OER activity under an acidic medium is improved, and the stability can be improved. Specifically, in a 0.1 M HClO4 electrolyte, under the current density of 10 mA / cm < 2 >, the overpotential is 220 mV, and the voltage is basically unchanged after continuous testing for 100 h.

The invention relates to the technical field of catalyst processing, and discloses a high-activity transition metal phosphide electrolyzed water catalyst and a preparation method thereof, and the high-activity transition metal phosphide electrolyzed water catalyst comprises the following components by weight: 1-3 parts of cobalt chloride hexahydrate; 0.5 to 1.5 parts of ruthenium trichloride; 0.5 to 1.5 parts of iridium chloride (III) hydrate; 1-2 parts of copper sulfate pentahydrate; 2 to 4 parts of sodium hypophosphite; 1 to 2 parts of urea; 1 to 2 parts of glucose; 1-2 parts of sodium sulfide nonahydrate; 0.5 to 1 part of crystalline aluminum chloride; 50 to 100 parts of deionized water; and 0.1 to 0.5 part of hexadecyl trimethyl ammonium bromide. By introducing the plasma auxiliary treatment technology, the electronic structure of the catalyst is optimized, the conductivity and stability of the catalyst are improved, and the efficiency and durability of hydrogen production through water electrolysis are enhanced.

The invention discloses a conductive layer coated ruthenium-doped beta-manganese dioxide catalyst and a preparation method and application thereof.The preparation method comprises the following steps that a manganese source, ruthenium trichloride trihydrate, an oxidizing agent and water are mixed, an obtained precursor solution is subjected to microwave synthesis, and the conductive layer coated ruthenium-doped beta-manganese dioxide catalyst is obtained. The obtained ruthenium-doped beta-manganese dioxide composite material, hydrochloric acid A and aniline are added into water, then hydrochloric acid B and ammonium persulfate are added, the obtained polyaniline-coated ruthenium-doped beta-manganese dioxide composite material is subjected to calcination treatment, and the conductive layer-coated ruthenium-doped beta-manganese dioxide catalyst is obtained. The conductive layer coated ruthenium-doped beta-manganese dioxide catalyst prepared by the invention has excellent catalytic activity and catalytic stability, and solves the problem of insufficient stability caused by high catalytic potential and catalyst dissolution in the test process of the anode catalyst of the proton exchange membrane electrolytic cell.

The invention relates to the technical field of new energy materials, in particular to a PtCoRu / carbon nanotube electrocatalyst and a preparation method and application thereof. Cobalt waste liquid generated after ZIF-67 is prepared, a platinum source and ruthenium trichloride are jointly impregnated on a commercial carbon nano tube, heat treatment is conducted under the inert atmosphere to obtain the PtCoRu / carbon nano tube electrocatalyst, the PtCoRu / carbon nano tube electrocatalyst is a nitrogen-doped PtCoRu / CNT composite material, and efficient electrocatalytic oxidation of methanol and ethanol in an acid medium is achieved. According to the method, the cobalt waste liquid generated after ZIF-67 is prepared is used as a raw material for preparing the multi-element noble metal catalyst, so that the problem of insufficient activity of the synthesized multi-element noble metal-based composite material is avoided while the economic cost generated by treating the cobalt waste liquid is avoided, and meanwhile, the problems of use of an organic solution and the cost of subsequent treatment are solved.

The invention relates to the technical field of catalysis, in particular to a Ru / WO3-x heterojunction catalyst, the chemical formula of the catalyst is Ru / WO3-x, and x represents oxygen vacancy; ru is loaded on the surface of a WO3-x support in the form of a metal simple substance, and the preparation method comprises the following steps: by taking tungstate as a tungsten source, ammonium sulfate as a morphology adjuvant and ruthenium trichloride as a ruthenium source, adjusting the pH value to 0-2, adding deionized water to prepare a hydrothermal reaction solution, performing hydrothermal reaction with a current collector, washing with deionized water, and drying, thereby obtaining the WO3-x support. And calcining in a reducing gas atmosphere to obtain the Ru / WO3-x heterojunction catalyst integrated electrode. Under the same test condition, nitrate can be effectively inhibited from being excessively hydrogenated into the final product ammonia, so that the product stays in the intermediate hydroxylamine.

The invention provides a manufacturing method of an iridium tantalum titanium anode. The manufacturing method comprises the following steps: pretreating a titanium substrate; tantalum metal is plated on the surface of the titanium substrate in a vacuum mode through the magnetron sputtering technology, then sintering is conducted for 30-35 min at the temperature of 600-620 DEG C, and a tantalum middle layer with the thickness of 100-200 nm is formed; a mixed solution containing iridium and tantalum is sprayed on the surface of the tantalum middle layer, then pre-oxidation is conducted for 15-20 min at the temperature of 480-530 DEG C, an iridium-tantalum coating is formed, the iridium content is 18-25 g / m < 2 >, and the tantalum content is 15-18 g / m < 2 >; coating the surface of the iridium-tantalum coating with a base metal mixed solution for 3-4 times, and then sintering at 480-530 DEG C for 20-35 minutes to form an organic matter resistant coating with the thickness of less than or equal to 5 microns; wherein the base metal mixed solution contains ruthenium trichloride, and the ruthenium content in the organic matter resistant coating is 1.2-1.8 g / m < 2 >. According to the manufacturing method of the iridium-tantalum-titanium anode provided by the invention, the service life of the anode is prolonged and the cost is reduced by optimizing the tantalum coating process of the middle layer and the design of the surface coating. The invention further provides the iridium tantalum titanium anode manufactured by the manufacturing method.

The invention discloses a Ti / IrO2-RuO2 coating titanium anode and a preparation method and application thereof, and belongs to the technical field of titanium electrodes, the titanium anode comprises a titanium substrate and a metal oxide coating; the molar ratio of Ir to Ru in the metal oxide coating is 5: 5. The preparation method comprises the following steps: adding a mixed solution of citric acid and ethylene glycol into a mixed solution of ruthenium trichloride and chloroiridic acid, then dropwise adding water and hydrochloric acid, carrying out ultrasonic treatment to obtain a mixed colloidal solution, coating a titanium substrate with the mixed colloidal solution, drying, and sintering to obtain the Ti / IrO2-RuO2 coating titanium anode. The invention further discloses the titanium anode prepared through the preparation method and application of the titanium anode in zinc electrodeposition. The Ti / IrO2-RuO2 coating titanium anode provided by the invention has good electrochemical performance, and compared with grains prepared by a thermal decomposition method, the Ti / IrO2-RuO2 coating titanium anode is finer and more uniform in grain, larger in specific surface area and better in electro-catalytic activity.

The drying and stirring device comprises a drying and stirring box and a supporting seat, the section of the supporting seat is U-shaped, supporting legs are fixed to the two sides of the bottom end of the supporting seat, the drying and stirring box is arranged at the top end of the supporting seat, and heating plates are arranged on the two sides of the bottom of the drying and stirring box. According to the ruthenium trichloride drying device, ruthenium trichloride raw materials guided into the drying stirring box are heated and dried through heating of the heating plate, the stirring motor drives the stirring shaft and the rotating plate to rotate, the two sets of material mixing plates are made to rotate, the corresponding multiple sets of stirring frames are made to rotate in the circumferential direction in the drying stirring box, and therefore the ruthenium trichloride raw materials are dried. Then the ruthenium trichloride in the drying and stirring box can be stirred and mixed, so that the ruthenium trichloride material is in full contact with a heat source, the heat transfer efficiency is improved, and the drying speed of the ruthenium trichloride material is increased.

The invention relates to the technical field of water electrolysis hydrogen production catalysts, in particular to an integral tungsten-doped ruthenium dioxide catalyst and a preparation method and application thereof.The preparation method comprises the steps that tungstic acid and ruthenium trichloride serve as raw materials and are dissolved in different solvents to prepare precursor solutions, then the precursor solutions are mixed to be uniform, and the integral tungsten-doped ruthenium dioxide catalyst is obtained; and dipping and coating a current collector, and carrying out drying and heating treatment to obtain the integral tungsten-doped ruthenium dioxide catalyst. The tungsten element is uniformly doped on the surface of ruthenium dioxide, so that the catalytic activity and the catalytic stability of the catalyst are greatly improved. And the tungsten-doped ruthenium dioxide catalyst is loaded on the current collector in the form of nano-scale particles, so that more active sites can be exposed, and the catalytic activity and the catalytic stability of the catalyst are further improved. The catalyst can be directly used as a working electrode, the preparation process is simplified, the preparation cost of the anode is saved, and the catalyst has a good application prospect in oxygen evolution reaction in hydrogen production through acidic water decomposition.

The invention relates to an ultrathin Ru / Co3O4 catalyst, Co3O4 serving as a carrier is of an ultrathin two-dimensional nanosheet structure, and Ru nanoparticles are uniformly loaded on the surface of the Co3O4. The preparation method comprises the following steps: dispersing Co3O4 in a mixture of deionized water and methanol to obtain a suspension; and adding ruthenium trichloride into the suspension, and irradiating the mixture with a xenon lamp to finally obtain the ultrathin Ru / Co3O4 catalyst. The invention relates to an ultrathin Ru / Co3O4 catalyst applied to photo-thermal CO2 hydrogenation. The method has the advantages that Co3O4 is of an ultrathin two-dimensional nanosheet structure, Ru is evenly loaded on the surface of Co3O4, Ru / Co3O4 has the high specific surface area, rich active sites are provided, the photo-thermal catalysis CO2 hydrogenation activity is remarkably improved, the problem that an existing catalyst is low in activity is solved, parameters such as the heating rate, the roasting temperature and time are accurately controlled, and Ru doping is combined, so that the catalytic activity of CO2 is greatly improved. Active component loss and structure collapse are effectively avoided, and the stability is enhanced.

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 present invention provides a preparation method and application of Ru-RuO2 nanosheets, belonging to the technical field of nanomaterial preparation. The present invention first adds L-proline, ruthenium trichloride trihydrate, and urea to ethanol, ultrasonically dissolves them, and then heats them to form a colloidal liquid, and then performs Joule heat treatment under an air atmosphere to obtain Ru-RuO2 nanosheets. This method does not require surfactants, templates, reducing atmospheres, and complex calcination processes, and can achieve the preparation of porous heterojunction Ru-RuO2 nanosheets with high efficiency and low energy consumption, and has prospects for industrial application. This two-dimensional porous heterojunction formed by in-situ calcination has a rich interface structure, can give full play to the synergistic effect of the two components, and significantly improves its activity and stability in acidic water electrolysis applications.

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.

This invention belongs to the technical field of magnesium-ion battery materials, specifically to a method for preparing ruthenium disulfide-copper pentasulfide (Cu9S5-RuS2) cathode material for magnesium-ion batteries. This method utilizes a simple hydrothermal synthesis technique, using copper dichloride dihydrate, thiourea, and ruthenium trichloride as raw materials to successfully synthesize Cu9S5-RuS2. This Cu9S5-RuS2, as a cathode material for magnesium-ion batteries, exhibits excellent electrochemical performance. Furthermore, the preparation process is simple to operate, contributing to the advancement and commercialization of magnesium-ion battery technology.

The invention relates to a Pt / Ru / RuO2 heterostructure metal aerogel material and a preparation method thereof. The method is realized through a two-step simple process which comprises the following steps: firstly, reducing ruthenium trichloride and potassium chloroplatinate in an aqueous solution by taking sodium borohydride as a reducing agent to obtain precursor hydrogel; and then the hydrogel is subjected to freeze drying and annealing treatment, and the final product Pt / Ru / RuO2 heterostructure metal aerogel is obtained. According to the preparation strategy, a traditional sodium borohydride reduction method is improved, operation is easy and convenient, consumed time is short, and used drugs are not only non-toxic and harmless, but also extremely low in cost. Performance tests show that the Pt / Ru / RuO2 heterostructure metal aerogel has excellent performance in electro-catalytic hydrogen evolution (HER) and oxygen evolution (OER) reactions: under the high current density of 10 mA. Cm <-2 >, the overpotentials of HER and OER are only 17 mV and 1840 mV respectively; more notably, after continuous testing for 24 hours under the current density, the performance of the material is basically not attenuated, and excellent stability is shown. By virtue of the advantages, the material has a wide application prospect in the field of energy conversion of electrolyzed water and the like.

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 invention belongs to the technical field of magnesium ion battery materials, and particularly relates to a preparation method of a ruthenium disulfide-copper pentasulfide (Cu9S5-RuS2) magnesium ion battery positive electrode material. According to the method, Cu9S5-RuS2 is successfully synthesized by adopting a simple hydrothermal synthesis technology and taking cupric chloride dihydrate, thiourea and ruthenium trichloride as raw materials. The Cu9S5-RuS2 prepared by the method is used as a positive electrode material of a magnesium ion battery, and shows excellent electrochemical performance. In addition, the preparation process is simple and convenient to operate, and is beneficial to promoting the technical development and commercialization process of the magnesium ion battery.

The invention provides a preparation method and application of Ru-RuO2 nanosheets, and belongs to the technical field of nano material preparation. The preparation method comprises the following steps: firstly, adding L-proline, ruthenium trichloride trihydrate and urea into ethanol, carrying out ultrasonic dissolution, heating and reacting to form jelly liquid, and then carrying out Joule heat treatment in an air atmosphere to obtain the Ru-RuO2 nanosheet. According to the method, a surfactant, a template agent, a reducing atmosphere and a complex calcining process are not needed, the preparation of the porous heterojunction Ru-RuO2 nanosheet can be realized with high efficiency and low energy consumption, and the method has an industrial application prospect. The two-dimensional porous heterojunction formed through in-situ calcination has a rich interface structure, the synergistic effect of two components can be fully exerted, and the activity and stability of the heterojunction in acidic electrolyzed water application are remarkably improved.

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 relates to the field of electrocatalysts, in particular to a Ru t-ZrO2 / C electrocatalyst and a preparation method thereof.The preparation method includes the steps that zirconium tetrachloride, terephthalic acid, N, N-dimethylformamide and formic acid are put into a polytetrafluoroethylene lining to be subjected to a solvothermal reaction, and after the temperature is cooled to the room temperature, centrifugal washing and vacuum drying are conducted through DMF and methyl alcohol to obtain UiO-66 powder; secondly, dispersing the UiO-66 powder in methanol, adding ruthenium trichloride, stirring, centrifugally washing with methanol, and drying in vacuum to obtain a precursor Ru-UiO-66; and finally, sintering the precursor Ru (at) UiO-66 in a tubular furnace under an argon condition to obtain the Ru (at) t-ZrO2 / C electrocatalyst. According to the present invention, the strong interaction between the Zr-Ru bimetallic sites is combined with the strong conductive structure formed by ZrO2 and the carbon substrate, such that the prepared electrocatalyst has characteristics of low loading amount of the noble metal Ru cluster, excellent structure stability, high active site utilization rate, and efficient electron transfer with the MOFs carrier so as to show the efficient acid-base system electrocatalytic property;

The invention relates to the technical field of medical and chemical medicines, in particular to a novel synthesis method of L (-)-threo-3-hydroxyaspartic acid hydrochloride. The preparation method comprises the following steps: by taking cheap and easily available D-phenylglycinol as an initial raw material, firstly protecting amino with Boc anhydride, then oxidizing to obtain N-BOC-D-phenylalanine aldehyde 3, then carrying out Grignard reaction on the N-BOC-D-phenylalanine aldehyde 3 and vinyl magnesium bromide at low temperature to obtain corresponding o-amino alcohol, then reacting the o-amino alcohol with 2, 2-dimethoxypropane at 0 DEG C under the catalytic action of p-toluenesulfonic acid, and finally obtaining the 2, 2-dimethoxypropane. The obtained compound 4 is subjected to Upjohn dihydroxylation reaction and sodium periodate oxidation to obtain corresponding aldehyde, and then the aldehyde is oxidized by potassium permanganate under a weak acidic condition to obtain corresponding carboxylic acid 5. Oxidizing a benzene ring by taking ruthenium trichloride as a catalyst and sodium periodate as a co-oxidant to obtain dicarboxylic acid; and finally, refluxing and deprotecting by using hydrochloric acid to obtain the L (-)-chloro-3-hydroxyaspartic acid hydrochloride.

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 invention provides ruthenium-dihydromyricetin, ruthenium-dihydromyricetin-loaded apoptosis vesicles as well as a preparation method and application of the ruthenium-dihydromyricetin-loaded apoptosis vesicles, and belongs to the technical field of preparation of antibacterial and anti-inflammatory products. The invention provides ruthenium-dihydromyricetin. The ruthenium-dihydromyricetin is prepared from the following raw materials: 50 to 80 parts of polyvinylpyrrolidone, 20 to 30 parts of ruthenium trichloride and 5 to 15 parts of dihydromyricetin. Ruthenium-dihydromyricetin with good dispersibility is obtained, the method is simple, and the product is uniform in morphology. Besides, the ruthenium-dihydromyricetin disclosed by the invention has antibacterial and anti-inflammatory effects, and has relatively low toxicity and relatively high biological safety in the antibacterial and anti-inflammatory process. According to the prepared ruthenium-dihydromyricetin-loaded apoptosis vesicles, the apoptosis vesicles can cooperate with ruthenium-dihydromyricetin to further improve the treatment effect on bacteria and inflammation, and the use dosage of nano-drugs can be reduced. The ruthenium-dihydromyricetin-loaded apoptosis vesicle disclosed by the invention has a wide application prospect in preparation of antibacterial and anti-inflammatory products.

The invention discloses preparation of an amorphous RuS2 / MAPbBr3 photo-thermal catalyst and application of the amorphous RuS2 / MAPbBr3 photo-thermal catalyst in catalysis of toluene oxidation. According to the method, ruthenium trichloride and a sulfur-containing chemical agent are used as raw materials to prepare the amorphous RuS2 nanoparticles. Then the composite material is prepared through a simple in-situ anti-solvent method, the process is simple, and the repeatability is high. The in-situ growth anti-solvent method can increase the contact area between MAPbBr3 and amorphous RuS2, is more beneficial to the generation and migration of carriers under the irradiation of visible light, reduces the recombination rate of electrons and holes, and improves the utilization rate of light energy. The prepared amorphous RuS2 has the performance of utilizing near-infrared light, and can convert near-infrared light energy into heat energy to play a role in local heating. The heating effect can increase the temperature of the reaction system, accelerate the migration of carriers to the surface of the catalyst, promote the surface reaction, and effectively improve the efficiency of the whole catalytic system.