30results about How to "Facilitates ion diffusion" patented technology

The invention discloses a method for collecting platinum group metal through microwave heating fusion. The method comprises the following steps that firstly, the temperature of a mixture containing aplatinum group metal raw material, a collector and additives is raised to 1,050 DEG C-1,200 DEG C under microwaves, the mixture is fused, and after fusing is completed, slag-liquid separation is carried out, and a slag phase and metal matte are obtained; wherein the collector comprises Ni3S2, and the additives are at least one of borax, sodium carbonate, sodium bicarbonate, sodium hydroxide, sodium peroxide and methylcellulose; and secondly, the metal matte is cooled and subjected to acid leaching treatment, and pickle liquor and platinum-containing leaching slag are obtained. According to themethod, efficient recovering of the platinum group metal in a waste catalyst containing the platinum group metal can be achieved at the relatively low fusing temperature, the content of the platinumgroup metal in the slag can be reduced through slag flotation, the collector is recovered in lixivium, and resources are saved.

The present disclosure generally relates to a method for electroplating (or electrodeposition) a transition metal oxide composition that may be used in gas sensors, biological cell sensors, supercapacitors, catalysts for fuel cells and metal air batteries, nano and optoelectronic devices, filtration devices, structural components, and energy storage devices. The method includes electrodepositing the electrochemically active transition metal oxide composition onto a working electrode in an electrodeposition bath containing a molten salt electrolyte and a transition metal ion source. The electrode structure can be used for various applications such as electrochemical energy storage devices including high power and high-energy primary or secondary batteries.

The invention relates to a high-performance super-capacitor electrode material Co-Fe type prussian blue nano cube as well as a preparation method and application thereof, and belongs to the technical field of electrode material preparation. According to the preparation method, inorganic cobalt salt and potassium ferricyanide are adopted as reaction raw materials, trisodium citrate is adopted as a complexing stabilizer, a liquid-phase precipitation reaction method is implemented, reaction conditions such as the use amount and the stand aging time of potassium ferricyanide are controlled, a Co-Fe type prussian blue nano cube material with good dispersibility and large specific area is prepared, and the size of the material is about 300nm. By adopting the Co-Fe type prussian blue nano cube material provided by the invention, the capacity of an electrochemical electric container is increased, properties such as the rapid charge and discharge property and the service life of the electric container are improved, the capacitance of the electric container is as high as 447F/g in constant current charge and discharge of 5A/g in a 1mol/L sodium sulfate solution, and the good rate capability is achieved.

The invention discloses a thin film transistor and a manufacturing method thereof. Firstly, a gate is formed on a substrate. Then, a gate insulation layer is formed to cover the gate, and a channel layer is formed on the part of the gate insulation layer upon the gate. Later, a source and a drain are formed on the channel layer. The method for forming the gate comprises can be that a nitrogen-containing copper alloy layer and a copper layer are orderly formed and the nitrogen-containing copper alloy layer and the copper layer are partially removed. The method for forming the source and drain can be the same.

The invention discloses a preparation method of anorthite-quartz-glass phase composite ceramic. The composite ceramic is prepared from desert sand, fly ash, kaolin and cellulose. The anorthite-quartz-glass phase composite ceramic material prepared by the preparation method disclosed by the invention has the advantages that the preparation process is simple; the apparent porosity is 0.5-7%, the bending strength is 70-130 MPa, the coefficient of thermal expansion is (3.0-7.4)*10<-6>/DEG C, and the material can be used for manufacturing conveying pipelines, stock bin linings, heat insulation plates, kiln materials and the like in the industries of machinery, chemical engineering, metallurgy, environmental protection and the like, and can also be used for urban and rural road paving, buildingdecoration and the like.

The invention relates to a carbon quantum dot-CoFe Prussian blue nanocomposite material as well as a preparation method and application thereof, and belongs to the technical field of electrode material preparation. The preparation method is a two-step synthesis method and comprises the steps: firstly, taking potassium citrate as a carbon source of carbon quantum dots, controlling the dosage of potassium citrate, hydrothermal synthesis temperature, hydrothermal synthesis time and other reaction conditions, and preparing a carbon quantum dot solution through a hydrothermal synthesis method; thentaking carbon quantum dots, inorganic cobalt salt and potassium ferricyanide as reaction raw materials, preparing the carbon quantum dot-CoFe Prussian blue composite material with good dispersity byadopting a liquid-phase coprecipitation reaction method, and enabling the size of nanospheres to be about 200-400 nm. When the carbon quantum dot-CoFe Prussian blue composite material prepared by themethod is used as an electrode material, the capacity of a supercapacitor is improved, the rapid charging and discharging capacity of the supercapacitor is greatly improved, and the supercapacitor hasexcellent rate capability and long cycle service life.

The invention relates to a controllable preparation method for a graphene-like framework loaded monatomic structure material, and the material can be taken as a material of an energy storage and conversion apparatus. The graphene-like framework loaded monatomic structure material is formed by uniformly loading single metal atoms on a graphene-like framework which is of a hollow film shaped structure, wherein the specific surface area of the material is 600-800 m<2>g<-1>. The controllable preparation method has the beneficial effects that a ZnO doped template is taken as a precursor, so that the template enables doping atoms to disperse well, and a doped MOF shell is formed by low-pressure deposition of gaseous organic ligands; and the doped MOF shell can be used for forming the graphene-like framework loaded stably-dispersed monatomic structure material. The graphene-like framework loaded monatomic material is taken as an electro-catalysis material, and has excellent oxygen reduction catalysis performance. The method has large-scale application potential.

The invention discloses a cotton-shaped nitrogen-doped carbon silicon composite electrode material and an in-situ preparation method thereof. The in-situ preparation method comprises the steps of focusing a laser beam by a convex lens under an ice bath condition, adding silicon carbide particles into deionized water containing certain ammonium hydroxide to obtain a suspension dispersion liquid used as a liquid-phase target, irradiating under a pulse laser condition, and freezing and drying the suspension liquid after irradiation is completed, thereby obtaining the cotton-shaped nitrogen-dopedcarbon silicon composite electrode material. A high-temperature and high-pressure environment can be generated instantaneously (nanosecond order) by pulse laser, silicon carbide is rapidly broken anddecomposed, carbon atoms and silicon atoms respectively form a cotton-shaped carbon sheet and silicon nanoparticles embedded into the cotton-shaped carbon sheet and nitrogen atom doping, the loosen cotton-shaped morphology is maintained under a rapid cooling effect of an ice bath liquid-phase environment, only one-step in-site laser irradiation is needed, other high-temperature and high-pressure decomposition atmospheres, a reagent and a complicated experiment device are not needed, the process is simple and is low in cost, and the condition is easy to control.

The invention relates to the technical field of castable production, and discloses a special castable with high temperature and alkali corrosion resistance for a smoke chamber of a rotary cement kiln. The invention relates to an explosion-proof spinel brick, which is prepared from the following components in percentage by weight: 30 to 40 percent of spinel micro powder, 10 to 18 percent of aluminate cement, 10 to 15 percent of tabular corundum fine powder, 6 to 18 percent of chromic oxide fine powder, 0.1 to 0.35 percent of polycarboxylate dispersing agent, 1 to 5 percent of zirconium oxide powder, 0.1 to 0.15 percent of water reducing agent, 0.05 to 0.15 percent of organic explosion-proof fiber and the balance of natural mullite with various particle sizes. The raw materials are subjected to grinding, mixing, vibration molding, maintenance and heat treatment to be processed into the castable. According to the invention, the tolerance of the castable to high temperature and alkaline corrosion can be enhanced, the service life of the castable is prolonged, and the use effect is ensured.

The invention belongs to the technical field of chemical engineering, and relates to a black copper sludge dearsenification device and method. Black copper sludge oxidation alkaline leaching operationis carried out in manners of parallel magnetic field applying and air agitation collaborative coupling, in the air injection oxidation process, reaction liquid rotates in an eddy shape, the rotatingface of the reaction liquid is vertical to the magnetic field, a magnetic induction line is cut in the reaction liquid rotation stirring process, magnetic field gradient is borne in the vertical direction, lorentz force is borne in the horizontal direction, and the aims of strengthening ion diffusion, strengthening solution activity and the dissolved oxygen level, improving the oxidizing reactionefficiency, greatly improving the arsenic leaching efficiency, avoiding increase of copper, antimony and bismuth leaching and saving the production cost are achieved.

The invention discloses a preparation method and application of a functionalized MXene-based conductive composite material, the functionalized MXene-based conductive composite material comprises an MXene conductive composite material, and the preparation method of the MXene conductive composite material comprises the following steps: S1, preparing an MXene material; s2, preparing a graphene oxide dispersion liquid; s3, preparing a nitrogen-carbon dispersion composite material; and S4, mixing and processing the MXene material prepared in the steps S1, S2 and S3, the graphene oxide dispersion liquid and the nitrogen-carbon dispersion composite material to prepare the MXene conductive composite material. The invention relates to the technical field of MXene conductive composite materials. According to the preparation method and application of the functionalized MXene-based conductive composite material, the problems that an existing synthesized MXene material lamellar structure is subjected to polymerization and re-stacking, ions are prevented from entering an active surface, the electrochemical performance of the MXene material is reduced, the flexibility is not high, and embrittlement damage is likely to happen after long-time use are solved.