14 results about "STANNOUS OXIDE" patented technology

The application provides a composite film and a preparation method and application thereof, and the preparation method comprises the following steps: (1) performing first plasma deposition treatment by using a composite tin target material to obtain a first tin oxide layer; (2) performing second plasma deposition treatment on the surface of the first tin oxide layer by using the composite tin target material to form a second tin oxide layer, thereby obtaining the composite film; wherein the composite tin target material comprises stannous oxide and tin oxide; the oxygen partial pressure of the first plasma deposition treatment is less than the oxygen partial pressure of the second plasma deposition treatment. The application adopts plasma deposition to prepare an electron transport layer, introduces trace oxygen vacancies by controlling the oxygen content in the target material and the oxygen partial pressure in the deposition process, activates interface carriers, promotes electron extraction, and improves the photoelectric performance and stability of the composite electron transport layer.

The invention relates to a zinc negative electrode with a stannous oxide protective layer constructed based on magnetron sputtering and a preparation method and application of the zinc negative electrode, and belongs to the technical field of aqueous zinc battery materials. The preparation method of the zinc negative electrode for constructing the stannous oxide protective layer based on magnetron sputtering comprises the following steps: depositing a stannous oxide protective layer on the surface of a pretreated zinc substrate in a mixed atmosphere of oxygen and argon by adopting a magnetron sputtering process and taking a metallic tin target as a sputtering source, and then carrying out annealing treatment in an air atmosphere to obtain the zinc negative electrode with the stannous oxide protective layer. Obtaining a finished product. The stannous oxide thin film provided by the invention has good zinc affinity, can induce uniform zinc nucleation and deposition, and has excellent electrochemical stability, so that side reactions such as hydrogen evolution and corrosion can be effectively inhibited; the obtained nano stannous oxide film remarkably reduces the zinc ion migration energy barrier, reduces the polarization voltage and prolongs the cycle life; and the preparation method is simple and convenient in process, controllable in parameters and suitable for large-scale preparation, and has good economical efficiency and application prospects.

The invention relates to a method for one-step synthesis of high-quality stannous oxide through intermittent ultrasonic reinforcement, and belongs to the technical field of semiconductor material preparation. The preparation method comprises the following steps: dropwise adding a sodium hydroxide aqueous solution into a stannous chloride aqueous solution at room temperature under a stirring condition until the pH value is 12.5-13.5 to form a mixed solution system; applying intermittent ultrasonic waves to the mixed solution system for intermittent ultrasonic treatment to induce direct nucleation and growth of stannous oxide and synchronous removal of chlorine impurities, carrying out solid-liquid separation, and drying the solid to obtain the low-chlorine fine-particle-size stannous oxide. According to the method, through the work-stop periodic effect of intermittent ultrasound, dynamic conditions are provided for diffusion and desorption of chloride ions while nucleation and growth regulation are promoted through cavitation, cooperative regulation of particle size refinement and deep dechlorination of stannous oxide is achieved, a high-temperature step or repeated washing is not needed, the process is simple and efficient, the conditions are mild, and the method is suitable for industrial production. And controllable preparation of the high-performance stannous oxide material can be realized.

This invention discloses a method for preparing tin dioxide hydrated colloidal precursors via dual-anode synchronous electrolysis, belonging to the field of electrochemical preparation technology of inorganic functional materials. The method includes the following steps: a) preparing an electrolyte containing 0.01 M hydrochloric acid and adjusting the initial pH value; b) using a high-purity tin plate as anode 1 and a titanium-based size-stabilized electrode as anode 2; using the titanium-based size-stabilized electrode as a common cathode; c) applying a DC voltage for constant-voltage synchronous electrolysis; anode 1 dissolves to generate stannous ions, anode 2 electrolyzes chloride ions to generate hypochlorous acid, and the hypochlorous acid instantly oxidizes the stannous ions to tetravalent tin ions in the bulk solution far from the cathode, forming a translucent tin dioxide hydrated colloidal precursor in situ in an acidic medium; d) drying the resulting colloid under reduced pressure and then calcining it at 200–250℃ to obtain high-purity nano-tin dioxide. This invention achieves integrated "dissolution-oxidation-gelation" through dual-anode synergy, avoiding the loss of hypochlorous acid during cathode reduction.

The invention relates to the technical field of zinc-nickel batteries, and provides an electrolyte for inhibiting overdischarge of a zinc negative electrode and a preparation method of the electrolyte. The electrolyte for inhibiting overdischarge of the zinc negative electrode effectively reduces the activity of water in the electrolyte and inhibits the decomposition of the electrolyte in the overdischarge process by utilizing the combined action of the matching solvent and the polymer, inhibits the dissolution and corrosion of zinc powder by utilizing zinc oxide, aluminum oxide and stannous oxide dissolved in the electrolyte, relieves the influence of overdischarge on the zinc negative electrode, and improves the overdischarge performance of the zinc negative electrode. And the cycling stability of the zinc battery is improved.

This invention relates to the field of electroplating waste resource utilization technology, specifically a method and equipment for preparing tin oxide from tin plating sludge. The method includes a box-type dryer, a crushing box, a box-type high-temperature furnace, a tubular atmosphere furnace, and a vibrating screen. A support frame is fixedly connected to the lower part of the crushing box, and a spring is fixedly connected to the top of the support frame. A screening plate is fixedly connected to the top of the spring. A rotating rod is rotatably connected through the crushing box, and an eccentric wheel is fixedly connected to the outer ring of the rotating rod. A discharge port is opened on the left side of the crushing box. Two rotating shafts are rotatably connected through the upper part of the crushing box, and crushing rollers and gears are fixedly connected to the outer rings of the rotating shafts. This method eliminates the need for acid washing or alkali washing to remove organic matter from the tin sludge, directly utilizing the carbon powder formed after the organic impurities in the tin sludge are carbonized as a reducing agent. The process involves fewer steps and is simple to operate.

What is provided is stannous oxide having an α-ray emission amount of 0.002 cph / cm2 or less after heating in an atmosphere at 100° C. for 6 hours. Tin containing lead as an impurity is dissolved in a sulfuric acid aqueous solution to prepare a tin sulfate aqueous solution, and lead sulfate is precipitated in the aqueous solution and removed. While stirring the tin sulfate aqueous solution from which lead sulfate has been removed, a lead nitrate aqueous solution containing lead having an α-ray emission amount of 10 cph / cm2 or less is added to cause lead sulfate to be precipitated in the tin sulfate aqueous solution, and simultaneously the tin sulfate aqueous solution is circulated while removing the lead sulfate from the aqueous solution. A neutralizing agent is added to the tin sulfate aqueous solution to collect stannous oxide.

This invention discloses a Sn-based catalyst, its preparation method, applications, and a method for the electrocatalytic synthesis of formic acid in an alkali-free metal salt electrolyte. The Sn-based catalyst comprises a crystalline stannous sulfide phase and an amorphous stannous oxide phase, with the crystalline stannous sulfide phase and the amorphous stannous oxide phase forming a heterostructure. The aforementioned Sn-based catalyst can improve the selectivity of specific products in the electrocatalytic reduction of carbon dioxide.

The invention provides a P-type stannous oxide thin film. The P-type stannous oxide thin film is obtained by carrying out magnetron sputtering on a Sn target material with the Te content of 1-10at%, packaging and annealing. The invention also provides a thin film transistor comprising the P-type stannous oxide and an inverter comprising the thin film transistor. Meanwhile, the invention also provides a preparation method of the thin film transistor and the phase inverter.

This invention discloses a microcrystalline glass / porous fiber anode material and its preparation method, belonging to the field of battery anode materials. The microcrystalline glass is characterized by being a fluorine-oxygen metal oxide co-doped microcrystalline glass, wherein the fluorine-oxygen metal oxide is two or more of stannous fluoride, stannous oxide, germanium oxide, and selenium oxide. The fluorine-oxygen metal oxide co-doped microcrystalline glass anode material is a microcrystalline glass material with a stable perovskite structure within an amorphous network structure. It is obtained by high-temperature melting-cold extraction-melting-cold extraction followed by grinding into powder. The porous fiber is bamboo carbon fiber with mesopore size. The powder is embedded into the bamboo material using a negative pressure adsorption method and then carbonized to finally obtain the microcrystalline glass / porous fiber anode material. This method has a simple manufacturing process, excellent electrochemical performance, and can be used in the battery industry.

The invention provides a hydrogen gas-sensitive material, a gas sensor, and a preparation method and application of the hydrogen gas-sensitive material and the gas sensor. The hydrogen gas-sensitive material comprises stannic oxide and stannous oxide in a molar ratio of 1: (1-2). The tin oxide and the stannous oxide with the molar ratio of 1: (1-2) are used as the hydrogen gas-sensitive material, can be used as the gas-sensitive material in a gas sensor, have relatively high sensitivity and selectivity to hydrogen, and can continuously and stably work in the air.

The invention belongs to the technical field of semiconductors, and particularly relates to a thulium-doped stannous oxide film and a preparation method thereof. The thulium-doped stannous oxide thin film comprises a substrate, a Tm: SnO material layer and a packaging layer which are sequentially stacked from bottom to top, the doping concentration of Tm in the Tm: SnO material layer is 2-5at% in terms of the total atom content of the Tm: SnO material layer. The crystal structure of SnO is regulated and controlled by doping the rare earth element thulium, so that the crystallinity is improved, the grain size is increased, and the (110) crystal face preferential growth is realized. The core of the preparation method of the thulium-doped stannous oxide thin film is that after a Tm: SnO material is deposited, a process of packaging first and then annealing is adopted, and SnO crystal grains are promoted to become larger and grow preferentially.

The invention discloses a tin-based negative electrode material as well as a preparation method and application thereof. The tin-based negative electrode material comprises a carbon matrix, elemental tin and a tin-containing compound, the tin-containing compound is stannic oxide and / or stannous oxide; based on the total weight of the tin-based negative electrode material, the content of the carbon matrix in terms of carbon element is 5wt%-30wt%. The preparation method of the tin-based negative electrode material comprises the following steps: (1) fully and uniformly mixing a tin source and a carbon source, then carrying out first calcination in an inert atmosphere, and washing and drying the obtained product to obtain a tin-carbon composite material; and (2) carrying out second calcination on the tin-carbon composite material obtained in the step (1) to obtain the tin-based negative electrode material. The preparation method of the tin-based negative electrode material is simple in technological process, free of chemical solvent, low in production cost, safe, environmentally friendly and beneficial to large-scale production, and has excellent electrochemical performance when being used as the negative electrode material of the lithium ion battery.

The application belongs to the technical field of glass scintillator material preparation, and provides a glass scintillator material with X-ray response performance and a preparation method and application thereof. Boron oxide, aluminum oxide, calcium oxide, sodium carbonate, a manganese source, sodium bromide and stannous oxide are mixed and reacted to obtain a molten glass solution; the molten glass solution is cooled on a preheated mold to obtain a glass precursor; the glass precursor is sequentially annealed, polished and heat-treated to obtain the glass scintillator material with X-ray response performance. The method has an induced self-crystallization process, can avoid time-consuming and laborious regulation of the complex nucleation thermodynamics and kinetics process of the traditional microcrystalline glass scintillator material, and can also avoid the addition of a Cs source, thereby reducing the production cost, preparing the glass scintillator material with large area, high stability and excellent performance, enabling the glass scintillator material to serve in extreme environments for a long time, and expanding the application range of the glass scintillator material.