29 results about "Indium Trichloride" patented technology

The invention discloses a carbamoyl-substituted diarylethene derivative as well as a preparation method and application thereof, and the preparation method comprises the following steps: reacting R-substituted 3-bromo-2-hydroxybenzaldehyde with an arylmethyl triphenylphosphonium bromide compound or an aryl acetic acid compound to obtain an intermediate A; then the intermediate A and cuprous cyanide are subjected to a heating reaction in N, N-dimethylformamide and nitrogen atmosphere, and an intermediate B is obtained; and finally, heating the intermediate B, acetaldoxime and indium trichloride in toluene for reaction to obtain the carbamoyl-substituted diarylethene derivative. The carbamoyl-substituted diarylethene derivative disclosed by the invention has a remarkable effect in an in-vitro anti-tumor activity test, particularly has excellent anti-proliferation ability to human BRCA mutant tumor cells, and can be used for preparing medicines for treating PARP-1 activity abnormity related diseases. The synthesis route is simple, the cost is low, and large-scale implementation is facilitated.

The invention discloses a preparation method of a CuInS2 / FeS2 wood mildew-proof antibacterial agent, which comprises the following steps: dissolving cuprous chloride, indium chloride tetrahydrate, ferric trichloride hexahydrate and thiourea or thioacetamide in ethylene glycol, and carrying out one-step solvothermal reaction and calcination to obtain a CuInS / FeS composite antibacterial agent; the material has triple effects of photo-thermal, photocatalysis and copper ion slow release, and can inhibit mildew and decay fungi on the surface of wood under the condition of visible-near infrared illumination or no illumination. NH4VO3 and 2-methylimidazole are added into a reaction system and calcined in an ammonia-containing atmosphere, so that a V < 5 + > / V < 4 + > redox pair can be formed on the surface, near-infrared absorption is further widened, electron-hole recombination is delayed, and long-acting antibiosis under weak light is realized. The process is simple, does not contain chromium and arsenic heavy metals, and is suitable for environmental protection of wood materials.

The invention relates to the technical field of optical sensors, in particular to a super-multilayer dielectric film structure optical refractive index sensor based on Fano resonance. The device sequentially comprises a prism layer, a modified cerium oxide layer, a functional layer, an interface layer, a substrate layer and a to-be-detected dielectric layer from top to bottom, the prism layer is a rutile prism, the substrate layer is an SOI substrate, and in the to-be-detected dielectric layer, a to-be-detected medium comprises water and ethanol; the interface layer is arranged on the substrate layer in a coating manner, the functional layer comprises a plurality of groups of units obtained by alternate deposition, and each unit comprises a vanadium dioxide layer and an indium trichloride tetrahydrate doped SiO2 layer which are arranged in sequence. The invention provides an optical refractive index sensor with a super-multilayer dielectric film structure based on Fano resonance, and aims to solve the problems of relatively low sensor sensitivity caused by relatively high cost and poor binding force with oxide materials of precious metals used in traditional materials and relatively weak surface plasmons excited by some oxide materials in related technologies.

The invention belongs to the technical field of heterogeneous catalysis, and relates to a preparation method and application of a molecular sieve-sulfur indium zinc heterogeneous material for photo-thermal driven CO2 cycloaddition, and the preparation method comprises the following steps: adding a certain amount of TS-1 molecular sieve into absolute ethyl alcohol, and stirring for 0.5-1.5 h; the preparation method comprises the following steps: respectively weighing anhydrous zinc chloride, indium trichloride tetrahydrate and thioacetamide according to a molar ratio of 1: 2: (6-10), mixing, adding into ethanol dispersed with a TS-1 molecular sieve, and stirring for 20-40 minutes; and heating the molecular sieve-sulfur indium zinc heterogeneous material TS-ZIS at 140-180 DEG C for 10-14 hours, cooling to room temperature, centrifugally washing and drying to obtain the molecular sieve-sulfur indium zinc heterogeneous material TS-ZIS. The prepared heterogeneous material can catalyze CO2 cycloaddition reaction in a photo-thermal concerted mode under the mild condition, the catalytic performance is good, the performance is not obviously reduced after multiple times of circulation, and the stability is good.

This invention relates to a method for preparing ZnIn2S4 adsorbents, specifically an ultrasonic atomization method based on zinc indium sulfide, belonging to the field of catalytic material preparation technology. The invention aims to address the problems of poor chemical stability and weak surface reaction kinetics in existing sulfide preparation methods. The method involves using zinc chloride, indium trichloride tetrahydrate, and thioacetamide as raw materials, and employing a hydrothermal method combined with ultrasonic atomization at 0 MHz, 1.0 MHz, 2.4 MHz, and 3.0 MHz to prepare ZIS-0, ZIS-1.0, ZIS-2.4, and ZIS-3.0 photoadsorbents, respectively. This method utilizes the acoustic cavitation, hotspot, and aggregation effects of ultrasonic atomization to achieve precise particle size control, increase specific surface area, and shorten the crystallization cycle, significantly improving the adsorption efficiency of atrazine. The preparation process of this invention is mild and simple, and the obtained materials exhibit excellent atrazine adsorption properties in aqueous solutions.

The invention discloses a production process of a tin-plated phosphor bronze wire for a transformer, and the production process comprises the following steps: S1, deoiling, pickling and activating a phosphor bronze wire to obtain a first phosphor bronze wire; s2, electroplating the first phosphor bronze wire in a pre-plating solution dissolved with tin methanesulfonate, indium trichloride and manganese sulfate, and washing to obtain a second phosphor bronze wire; s3, tinning the surface of the second phosphor bronze wire; the pre-plating solution further comprises a pH regulator, a complexing agent and an organic plating assistant. According to the production process of the tin-plated phosphor bronze wire for the transformer, indium salt, tin salt, manganese salt and indium salt are introduced into a pre-plating solution with tin salt and manganese salt as main salts, and reduction deposition is carried out on the surface of a copper wire at the same time to form a tin-manganese-indium alloy layer; the tin-manganese-indium alloy layer is favorable for optimizing the mechanical properties such as bending times, tensile strength and the like and the service life of the tin-plated phosphor bronze wire. The invention also discloses the tin-plated phosphor bronze wire prepared by the production process of the tin-plated phosphor bronze wire for the transformer.

The present invention discloses a photocatalyst and its preparation method and application, belonging to the field of semiconductor photocatalytic water decomposition hydrogen production technology. A photocatalyst preparation method comprises the following steps: S1: preparing CeVO4 nanoparticles, S2: preparing AZnIn2S4 / BCeVO4 heterojunction nanomaterials, using a solvent thermal synthesis method, weighing zinc chloride, indium trichloride tetrahydrate, and thioacetamide and dissolving them in a solvent, continuously ultrasonicating for 25-40 minutes to obtain a mixed solution, dispersing the CeVO4 nanoparticles prepared in step S1 in the mixed solution, ultrasonicating for 25-35 minutes at room temperature, then transferring to an autoclave for heating, centrifuging to obtain a precipitate, washing the precipitate, removing impurities on the precipitate surface, and drying to obtain the AZnIn2S4 / BCeVO4 heterojunction nanomaterial as a photocatalyst. The present invention synthesizes the AZnIn2S4 / BCeVO4 heterojunction by a solvent thermal method to obtain a photocatalyst with high photocatalytic performance.

The application discloses a coated modified lithium manganese iron phosphate lithium ion battery positive electrode material, and preparation steps thereof include the following steps: (1) preparing lithium manganese iron phosphate powder; (2) mixing pyridine and hexafluorophosphoric acid, adding lithium hydroxide and ethanol, and heating in a water bath to obtain a mixture; (3) adding an aqueous solution of indium trichloride, lithium manganese iron phosphate powder and L-malic acid into an ethanol solution of cerium nitrate and n-butyl titanate at the same time, ultrasonic dispersion is carried out, then the mixed solution is laid in a container, water and ethanol are removed by drying and evaporation, calcination is carried out at 120+5 DEG C, then the mixture and selenium acid powder are added and uniformly mixed, calcination is carried out again at 650+5 DEG C, after the completion of the calcination, air cooling is carried out to normal temperature, and the coated modified lithium manganese iron phosphate lithium ion battery positive electrode material is obtained. The positive electrode material prepared by coating and modifying lithium manganese iron phosphate according to the method can significantly improve the discharge specific capacity and capacity retention rate of the battery.

The invention discloses a combined negative electrode additive for a zinc-bromine flow battery, a negative electrode electrolyte, a preparation method of the negative electrode electrolyte and the zinc-bromine flow battery, and belongs to the technical field of electrochemical energy storage, and the combined negative electrode additive for the zinc-bromine flow battery comprises indium trichloride and glycine in a molar ratio of 1: (3.33-60); during charging, indium ions in indium trichloride are reduced into metal indium on the surface of the electrode, the metal indium and the post-deposited zinc generate a nanoscale alloy layer in situ, electric field distribution is homogenized, and zinc dendritic crystal growth is inhibited; carboxyl and amino of glycine are used as electron donors to form a water-soluble complex with zinc ions, so that the reduction kinetics of the zinc ions on the surface of the electrode is slowed down; polar functional groups of glycine are adsorbed on active sites on the surface of a zinc electrode, zinc ion deposition is blocked, energy distribution of the electrode and an electrolyte interface is changed, zinc is guided to perform transverse two-dimensional growth, zinc dendrite growth is inhibited, hydroxyl ions are neutralized, and hydrogen evolution reaction is inhibited. The coulombic efficiency of the zinc-bromine flow battery is 95.4%-97.0%; the energy efficiency ranges from 81.85% to 84.49%; and the voltage efficiency is 85.8%-87.1%.

The invention belongs to the technical field of battery materials, and discloses a method for synthesizing InSbO4 (at) C nanofibers with assistance of derived carbon, which comprises the following steps: 1) dissolving indium trichloride and antimony trichloride which are equimolar in a mixed solution of a polymer and N, N-dimethylformamide to obtain an electrostatic spinning precursor solution; 2) preparing by adopting an electrostatic spinning method, collecting and drying to obtain a nanofiber precursor; and 3) heating the nanofiber precursor in an air atmosphere at a heating rate of 1 DEG C / min to 500 DEG C, and carrying out heat preservation for 0.5-2 hours to obtain the InSbO4 (at) C nanofiber. According to the invention, the InSbO4 with a stoichiometric ratio is synthesized under the assistance of derived carbon, the size of the InSbO4 nanoparticles is controllable, the synthesis method is simple and convenient, and the InSbO4 (at) C nanofiber has certain application potential when being used as a lithium / sodium / potassium ion battery negative electrode material.

The application discloses a kind of composite electrode and organic solar cell based on inorganic metal salt interface material, belong to energy material field.The interface modification material indium trichloride InCl3 of the present application is obtained by one-step synthesis of NH4Cl powder and indium tin oxide powder.The interface modification material is modified to the surface of indium tin oxide through chemical-physical effect, optimizes interface work function, reduces hole transport barrier, and improves the photoelectric conversion efficiency and stability of solar cell device.Compared with the traditional PEDOT: PSS interface modification layer material, the efficiency of solar device based on interface modification material InCl3 is increased from 18.39% to 18.92%.In addition, the efficiency of the device prepared after the electrode modified with the material is continuously subjected to thermal stress for 1080h can still maintain more than 90% of the initial value.

The invention discloses a preparation method of an Er-doped CdIn2S4 photocatalyst for photocatalytic degradation of methylene blue, which comprises the following steps: adding cadmium chloride, indium chloride tetrahydrate and thioacetamide into deionized water, and carrying out hydrothermal reaction to prepare the CdIn2S4 photocatalyst; in the same reaction system, Er (NO3) 3.5 H2O is added according to different proportions of the molar weight of indium trichloride tetrahydrate, and three samples with different Er doping concentrations are obtained. The photocatalytic performance of CdIn2S4 is effectively regulated and controlled through Er doping, the separation efficiency of photon-generated carriers is remarkably improved, and meanwhile the light absorption capacity of the material is enhanced. More adsorption sites and active sites are exposed on the surface of the modified catalyst, so that the degradation efficiency of methylene blue is greatly improved. The method has the remarkable advantages of being simple in preparation process, low in cost, easy to recycle and the like, and shows a good application prospect in the field of dye wastewater treatment.

The application relates to the technical field of hydrogen sulfide gas sensors, in particular to a metal single-atom driven hydrogen sulfide gas sensor construction method and application, which comprises the following steps: dissolving indium trichloride tetrahydrate and thiourea in isopropyl alcohol and deionized water, uniformly stirring, and obtaining a precursor transparent solution; performing a hydrothermal reaction on the precursor solution; obtaining a first dry sample; calcining the first dry sample to obtain an indium oxide nanosphere precursor; uniformly mixing the indium oxide nanosphere precursor with deionized water to obtain a first mixed solution; mixing the first mixed solution with an ammonium carbonate solution, adding a ruthenium acetylacetone solution for mixing to obtain a second mixed solution, centrifuging, and drying to obtain a second dry sample. The second dry sample is calcined to obtain an indium oxide nanosphere gas-sensitive material; the indium oxide nanosphere gas-sensitive material is dispersed in anhydrous ethanol, is drop-coated onto the surface of a planar electrode, and is constructed into a hydrogen sulfide gas sensor; and the application realizes efficient detection of hydrogen sulfide gas.

The invention discloses a nano indium adjuvant as well as a preparation method and application thereof, and belongs to the technical field of nano medicines. The preparation method comprises the following steps: mixing indium trichloride with a PVP (Polyvinyl Pyrrolidone) solution, and carrying out metal ion chelation on the mixture and a gallic acid solution to obtain the uniform and stable nano indium adjuvant. Then, the antigen ovalbumin and the nano indium adjuvant form the nano indium adjuvant vaccine, humoral immunity and cellular immunity are activated at the same time, the presentation capacity and immunogenicity of the antigen are enhanced, and the requirements of clinical anti-tumor vaccines are met.

The invention provides a solid electrolyte, a preparation method thereof and a lithium battery. The preparation method of the solid electrolyte comprises the following steps: providing raw materials including lithium chloride, indium trichloride and lithium fluoride according to the stoichiometric ratio of Li3InCl6-xFx, x being 0.1-0.5; grinding the lithium chloride, the indium trichloride and the lithium fluoride to prepare an amorphous precursor; carrying out first sintering at the temperature of 250-280 DEG C to prepare an intermediate phase; and sintering for the second time at the temperature of 280-350 DEG C. The specific crystal lattice site of Cl <-> in the Li3InCl6 crystal is selectively occupied by doping F <->, the sectional area of a lithium ion migration channel is enlarged after partial substitution, migration activation energy is reduced, and the ionic conductivity is improved. In addition, the incompletely reacted LiF is uniformly distributed on the grain boundary in a nano-particle form, an additional lithium ion transmission path is provided, water molecule permeation is effectively blocked, and the humidity stability is improved.

The application relates to the technical field of nanomaterial preparation, in particular to a method for synthesizing a zinc-sulfur double-vacancy Zn3In2S6 photocatalyst, wherein specific-volume ammonia water is mixed with deionized water to form a solvent, zinc sulfate, indium trichloride and thioacetamide precursors are added, and after uniform stirring, one-step hydrothermal reaction is carried out at 160 DEG C for 12 hours, and the product is obtained through centrifugal washing and vacuum drying. Through the coordination induction effect of ammonia water, zinc vacancies and sulfur vacancies are in-situ constructed in the Zn3In2S6 crystal lattice, the introduced defect energy level is used as an electron trap to capture photo-generated electrons, carrier recombination is inhibited, and the surface active site is increased. The application can significantly improve the hydrogen production activity under visible light, the hydrogen evolution rate is 2.25 times that of the hydrogen production activity without adding ammonia water, and the application has the advantages of simple process route, excellent catalytic performance and strong structural stability.

The invention provides an acetone gas sensor based on bimetallic loaded nanoparticles and a preparation method thereof, and the preparation method comprises the following steps: adding tin chloride into a solution containing a complexing agent and deionized water, stirring at 60 DEG C for 10 minutes, then adding ammonia water until the pH value reaches 3, and centrifugally washing to obtain tin hydroxide precipitate powder; sequentially adding indium chloride tetrahydrate powder, gold chloride powder and platinum tetrachloride powder into the tin hydroxide precipitate powder for ball milling and mixing, and sintering at the temperature of 600 DEG C for 2 hours to obtain bimetallic loaded nanoparticles; the preparation method comprises the following steps: adding ethylene glycol and zirconium oxide ball-milling beads into bimetallic-loaded nanoparticles, carrying out ball milling for 8 hours to obtain a dispensing solution, coating a micromotor heating plate with the dispensing solution, drying at room temperature, and sintering at 200-400 DEG C for 3-4 hours to obtain the acetone gas sensor based on the bimetallic-loaded nanoparticles. Therefore, the excitation temperature can be effectively reduced, and the selectivity to acetone gas can be improved.

An indium-containing water-absorbing gel for promoting plant growth and a preparation method thereof. The method comprises: providing ethanol and adding indium trichloride to fully dissolve it; then adding ethanolamine to form a precursor solution; and thoroughly mixing the precursor solution with deionized water and drying it to obtain the water-absorbing gel. The indium-containing water-absorbing gel of the present invention has strong water absorption and good cyclic stability. It absorbs water at low temperatures and releases water at high temperatures, making it particularly suitable for promoting plant growth in arid areas.

The invention relates to a preparation method and application of a gas-sensitive material for detecting methane. The preparation method comprises the following steps: stirring indium trichloride tetrahydrate, urea and deionized water to form a mixed solution; transferring the mixed solution into a stainless steel high-pressure reaction kettle with a polytetrafluoroethylene lining for reaction and sealing, and after the reaction is finished, naturally cooling the mixture to room temperature to obtain a precursor; centrifuging and washing the precursor, drying, and grinding to obtain a precursor material; calcining the precursor material in air to obtain a pure In2O3 material; the preparation method comprises the following steps: adding chloroauric acid and an In2O3 material into deionized water, and stirring to obtain a mixed solution; carrying out solid-liquid separation on the mixed solution, and washing the solid to obtain a precipitate; and drying the precipitate, calcining in air, cooling to room temperature, and grinding to obtain the Au / In2O3 gas sensitive material. The Au / In2O3 gas-sensitive material is prepared by doping metal Au into In2O3, and the specific surface area of the gas-sensitive material is increased, so that the sensitivity of the gas-sensitive material in practical application is improved.

According to the SnInPd oxide based on electrostatic spinning, stannic chloride pentahydrate, indium chloride tetrahydrate, palladium chloride and polyvinylpyrrolidone (PVP) serve as raw materials, DMF serves as a solvent, an SIP-PVP film is formed through electrostatic spinning, and then the SnInPd oxide based on electrostatic spinning can be obtained after calcination. The microstructure of the SIP-PVP is a nanofiber three-dimensional network which is composed of nanofibers with the diameter of 100-200nm and has a dispersed structure; the microstructure of the SIPO is not substantially different from that of the SIP-PVP. The preparation method comprises the following steps: 1, preparing an electrostatic spinning solution; 2, preparing an electrostatic spinning membrane; and 3, calcining the electrostatic spinning membrane. When the hydrogen sensor is used as a hydrogen sensor, the optimal working temperature is 270 DEG C, the response value is 32, the response time is 1s, and the recovery time is 10s; the hydrogen concentration range is 1000-10 ppm, and the lower limit of sensitivity is 10 ppm.

The invention discloses a preparation method of an indium oxide hollow nanotube / indium zinc sulfide heterojunction photoelectric functional material, which mainly comprises the following steps: dissolving indium nitrate hydrate and p-xylene in N, N-dimethylformamide, preparing a precursor Laval Hill framework material MIL-68 (In) nanorod of an indium oxide hollow nanotube by a hydrothermal method, and preparing the indium oxide hollow nanotube / indium zinc sulfide heterojunction photoelectric functional material. And then mixing the In2O3 hollow nanotube with zinc chloride, indium trichloride and thioacetamide, and preparing the indium oxide hollow nanotube / indium zinc sulfide heterojunction functional material under the action of an oil bath.

The invention discloses 3D porous microspherical indium sulfide rich in sulfur vacancies as well as a preparation method and application thereof, and relates to the technical field of photocatalytic materials. Comprising the following steps that 1, indium chloride tetrahydrate and L-cysteine are dissolved and then stirred for the first time, a mixed solution is obtained, and the volume ratio of indium chloride tetrahydrate to L-cysteine is 1: (1.5-4.5); the invention discloses a preparation method of 3D porous indium sulfide.The preparation method of the 3D porous indium sulfide.The preparation method of the 3D porous indium sulfide.The preparation method of the 3D porous indium sulfide.The preparation method of the 3D porous indium sulfide.The preparation method of the 3D porous indium sulfide.The preparation method of the 3D porous indium sulfide.The preparation method of the 3D porous indium sulfide.The preparation method of the 3D porous indium sulfide.According to the preparation method of the 3D porous indium sulfide-3D porous indium sulfide-3D porous indium sulfide-3D porous indium sulfide-3D porous indium sulfide-3D porous indium sulfide-3D porous indium sulfide-3D porous indium sulfide-3D

The invention discloses a visible light ultrasonic synergistic response barium titanate-indium zinc sulfide catalyst as well as a preparation method and application thereof. The preparation method comprises the following steps: S1, synthesizing a barium titanate nanowire; s2, synthesis of barium titanate-indium zinc sulfide nanowires: uniformly mixing deionized water, glycerol and ethylene glycol in proportion, adjusting the pH value, adding the newly prepared barium titanate nanowires, zinc oxide and indium trichloride tetrahydrate in proportion, performing ultrasonic dispersion uniformly, then adding thioacetamide, quickly heating to 70-100 DEG C under a stirring condition, then continuously heating and reacting for 2-4 hours, and cooling to room temperature to obtain the barium titanate-indium zinc sulfide nanowires. And after the reaction is finished, filtering, washing and drying to obtain the product. According to the composite catalyst, the barium titanate nanowire with piezoelectric response serves as an inner core, an S-shaped heterojunction constructed by the ultrathin indium zinc sulfide nanosheets is loaded on the surface, the light absorption range is widened, the light absorption efficiency is improved, separation of carriers can be effectively promoted, and ultrasonic / visible light dual-energy driven efficient synthesis is achieved.

The invention relates to the technical field of chemical palladium plating solutions, in particular to a chemical palladium plating solution and a chemical palladium plating process, and the chemical palladium plating solution at least comprises a palladium chloride solution, EDTA-disodium, ammonia water, sodium hypophosphite, hypophosphorous acid, maleic acid, water, indium trichloride and glycine. The stability of the bath lotion is ensured, and meanwhile, a coating with excellent corrosivity, welding flux bonding performance and lead welding performance can be obtained subsequently, so that the actual application requirements are better met.

The present invention relates to the technical field of soldering tin, and specifically relates to a spraying process for a soldering tin wire with a flux coating on the outside, which specifically includes: 1) soaking and activating the soldering tin wire after cleaning; 2) obtaining nanoparticles through a hydrothermal reaction using indium trichloride, deionized water, sodium dodecyl sulfate, and urea; 3) adding nickel sulfate hexahydrate, nickel chloride hexahydrate, boric acid, nanoparticles, and sodium dodecylbenzenesulfonate into absolute ethanol to prepare a plating solution, using the activated soldering tin wire as the electroplating cathode and a nickel sheet as the anode, and applying intermittent auxiliary ultrasonic waves during the electroplating process to obtain a pretreated soldering tin wire; 4) heating the flux and spraying it on the surface of the pretreated soldering tin wire, and it can be solidified. In the spraying process of the present invention, the interfacial bonding strength between the soldering tin wire and the flux coating is high, and the flux coating can firmly adhere to the surface of the soldering tin wire, thereby reducing the occurrence of defective products such as open soldering and bridging during soldering, and achieving a high yield rate during soldering.

The invention discloses preparation and application of an In2S3 nanosheet, and belongs to the field of thin film battery materials. The preparation method comprises the following steps: dissolving thioacetamide and indium trichloride in a solvent to prepare an In2S3 precursor solution, carrying out spin coating on a TiO2 nanoparticle film to form a film, and carrying out heat treatment under the protection of inert gas to obtain an In2S3 nanosheet array film; adding InCl3. 4H2O, CuI and thiourea into N, N-dimethylformamide, mixing and stirring, dropwise adding the mixture onto the In2S3 nanosheet array thin film, and spin-coating the mixture on the In2S3 nanosheet array thin film to obtain a CuInS2 precursor thin film; the CuInS2 precursor film is subjected to heat treatment, and an In2S3 / CuInS2 inorganic body type heterojunction is obtained; spin coating of a Spiro-OMeTAD solution is carried out on the In2S3 / CuInS2 inorganic body heterojunction, and after heat treatment, a Spiro-OMeTAD thin film is obtained; and a metal electrode is deposited on the Spiro-OMeTAD thin film through vapor deposition.

The invention relates to the technical field of hydrogen sulfide gas sensors, in particular to a construction method and application of a metal monatomic driven hydrogen sulfide gas sensor, and the construction method comprises the following steps: dissolving indium trichloride tetrahydrate and thiourea in isopropanol and deionized water, and uniformly stirring to obtain a precursor transparent solution; carrying out hydrothermal reaction on the precursor solution; obtaining a first dried sample; calcining the first dried sample to obtain an indium oxide nanosphere precursor; uniformly mixing the indium oxide nanosphere precursor with deionized water to obtain a first mixed solution, mixing the first mixed solution with an ammonium carbonate solution, adding a ruthenium acetylacetonate solution, mixing to obtain a second mixed solution, centrifuging, and drying to obtain a second dried sample; calcining the second dried sample to obtain the indium oxide nanosphere gas-sensitive material; the method comprises the following steps: dispersing an indium oxide nanosphere gas-sensitive material in absolute ethyl alcohol, and dispensing onto the surface of a planar electrode to construct a hydrogen sulfide gas sensor; according to the invention, high-efficiency detection of hydrogen sulfide gas is realized.