120 results about "Silver salts" patented technology

A method for preparing a silver powder, comprising: subjecting a first silver salt, a first dispersing agent and a first reducing agent to a first treatment, so as to obtain silver crystal nucleuses; and subjecting the silver crystal nucleus, a second silver salt, a second dispersing agent, a second reducing agent and a modifying agent to a second treatment, so as to obtain a silver powder, wherein the modifying agent comprises lauric acid, decanoic acid and undecanoic acid. The silver powder prepared by means of the method has good dispersity and wettability, a narrow particle size distribution, a small particle size and high sintering activity, and is not prone to agglomeration in a conductive silver paste, thereby enabling the conductive silver paste to have a high solid content and endowing the conductive silver paste with good conductivity. The present invention further relates to a silver powder, a conductive silver paste, an electronic device and electric equipment.

The invention relates to the technical field of biomedical materials, in particular to silver-containing collagen sponge and a preparation method thereof.The preparation method comprises the following steps that S1, silver salt is added into a collagen solution, and a first solution is obtained; s2, glutathione and ethylene diamine tetraacetic acid disodium salt are added into the first solution, and a second solution is obtained; s3, adding sodium alginate and chitosan into the second solution, and homogenizing to obtain a homogenized solution; and S4, carrying out freeze drying on the homogenized liquid to obtain the silver-containing collagen sponge. The preparation method of the silver-containing collagen sponge provided by the invention is simple in process, good in reproducibility and suitable for large-scale production; according to the silver-containing collagen sponge, chelating is stably combined with a microcapsule coating composite system, oxygen is isolated from silver ions, the oxidation rate of the silver ions is remarkably reduced, meanwhile, slow release of silver is achieved, and therefore the antibacterial time efficiency of the silver-containing collagen sponge can be prolonged.

The invention relates to the technical field of catalytic materials, in particular to a monatomic alloy catalyst and a preparation method and application thereof.The preparation method comprises the steps that a first solution obtained by mixing cobalt salt, silver salt and a solvent is mixed with a second solution obtained by mixing 2-methylimidazole and a solvent, stirring treatment is conducted, and a first precursor solution is obtained; and carrying out first heat treatment on the obtained precipitate in an inert atmosphere to obtain the fcc Ag1Co / C monatomic alloy catalyst. A first solution and a second solution are mixed to obtain an Ag / ZIF-67 precipitate which is a Co-based zeolite imidazate framework structure composite material, an organic framework of the Co-based zeolite imidazate framework structure composite material is decomposed and carbonized through high-temperature heat treatment, meanwhile, Ag and Co species are reduced and converted into nanoparticles, and the Ag / ZIF-67 precipitate is obtained. And finally, the composite material catalyst with the Ag1Co monatomic alloy nanoparticles embedded into the nitrogen-doped carbon matrix is formed. The catalyst shows the most excellent activity and selectivity, the removal rate of 4-NP reaches 100% within 6 min, and high catalytic activity can be achieved.

The application relates to the technical field of organic synthesis, and discloses a preparation method of a hydrocarbyl carboxylic acid, which comprises the following steps: mixing a hydrocarbyl aldehyde, an oxidizing agent and a first metal salt to perform pre-reaction, and then mixing the reaction system obtained through the pre-reaction with a second metal salt to perform reaction; wherein the first metal salt is selected from at least one of a sodium salt, a potassium salt, a calcium salt, a lithium salt, an iron salt and a copper salt; and the second metal salt is selected from at least one of a zinc salt, a manganese salt, a cobalt salt, a palladium salt and a silver salt. The preparation method of the hydrocarbyl carboxylic acid can greatly shorten the reaction time, and improve the raw material conversion rate, the target product selectivity and the target product purity of the aldehyde oxidation acid reaction.

Concentrated dispersions of silver nanowires are used to produce qualitatively distinct silver structures with various properties. The concentrated dispersions may contain a high weight percent of silver nanowires and can be formulated to be a fluid liquid or a non-fluid paste. The concentrated dispersions may be stable for up to a week without visible sedimentation, may have non-Newtonian rheology, and can be diluted to a desired weight percent of silver nanowires without adversely affecting the uniformity of the dispersion. The concentrated dispersions may be formulated with or without polymer or prepolymer components. The concentrated dispersions may be formulated with silver salts to adjust the dispersion of silver nanowires and to improve the conductivity of the hardened silver structures formed from the dispersions. Methods for forming concentrated dispersions are described as methods for forming silver structures from dispersions.

This application discloses a negative curvature polycyclic aromatic hydrocarbon containing an eight-membered ring, its synthesis method, and its application, belonging to the field of organic synthesis. The synthesis method uses a haloacenaphthene derivative as a starting material. First, a tetrahalogenated key intermediate containing an eight-membered ring is constructed via a titanium tetrachloride-catalyzed cyclization tetramerization reaction. Subsequently, this intermediate undergoes a cyclization coupling reaction with an alkyne compound in the presence of a palladium catalyst, silver salt, and phosphine ligand to generate a negative curvature polycyclic aromatic hydrocarbon containing an eight-membered ring. The synthesis method of this application avoids multi-step precursor synthesis, resulting in a concise process. It allows for the flexible introduction of functional groups such as trifluoromethyl and silyl groups, improving the solubility and processability of the material. The obtained product exhibits a non-planar configuration, a narrow optical band gap, and excellent electron transport properties, making it suitable for applications... n Applications include semiconductors, chiral optoelectronic materials, and nano-carbon materials.

This invention provides a silver-based SCR catalyst, its preparation method, and its application, belonging to the field of air pollution control technology. The preparation method of the silver-based SCR catalyst provided by this invention includes the following steps: impregnating alumina hydroxyaluminate in a soluble silver salt aqueous solution to obtain a catalyst precursor; subjecting a portion of the catalyst precursor to a first calcination at 450–550°C to obtain a first calcined product; subjecting the remaining catalyst precursor to a second calcination at 850–950°C to obtain a second calcined product; and mixing the first and second calcined products to obtain the silver-based SCR catalyst. The preparation method provided by this invention is green and low-cost. When the obtained silver-based SCR catalyst is used for flue gas denitrification, it can maintain a high NO conversion rate from low to high temperatures.

The invention provides metal-doped silver powder, a preparation method of the metal-doped silver powder and photovoltaic cell silver paste, and belongs to the technical field of photovoltaic silver paste. The silver powder comprises 10-50 parts by mass of silver salt; 1-3 parts by mass of a metal salt; 3-15 parts by mass of a reducing agent; 2-5 parts by mass of a modifier; 5-25 parts by mass of a dispersant; and 2000 parts by mass of a solvent. According to the invention, the metal salt is doped in the silver powder, so that the contact resistance of the silver grid line can be effectively reduced, and the photoelectric conversion efficiency of the battery piece is improved.

The application belongs to the technical field of chemical synthesis, and particularly relates to a synthesis method of 2-aryl-2-cyclohexanedione enol ester compounds. The method uses a transition metal complex as a catalyst, and uses a phenyl boronic acid compound and an iodine onium compound as raw materials, first synthesizes a 3-hydroxy-2-aryl-2-cyclohexenone compound, and then synthesizes the 2-aryl-2-cyclohexanedione enol ester compound through acylation. The reaction condition is mild, no additional additives (such as alkali-sodium acetate, expensive silver salt-silver acetate, etc.) need to be added, the C-C bond can be efficiently and quickly constructed, the 2-aryl-2-cyclohexanedione cyclization derivative is obtained, the reaction operation is simple, the reaction time is short, the method has high efficiency and high safety, the substrate range is wide, the functional group tolerance is good, the method conforms to the concept of green chemistry and high atomic economy, and is very suitable for large-scale industrial production.

This invention discloses a near-infrared light-exciteable composite nanosheet, its preparation method, and its applications, belonging to the field of biomedical technology. The method includes the following steps: mixing epigallocatechin gallate with a Ti3C2 nanosheet dispersion, ultrasonically reacting, adding silver salt, and continuing stirring in the dark; after the reaction is complete, washing and separating to obtain MXene-EGCG@Ag composite nanosheets. The composite nanosheets provided by this invention possess near-infrared light-exciteable properties and can be used to prepare medically acceptable dosage forms such as hydrogels for the treatment of periodontitis. The preparation method provided by this invention is simple, the raw materials are readily available, and it exhibits significant antibacterial and anti-inflammatory effects, enabling further widespread application.

The present application provides a silicon-carbon negative electrode sheet and a preparation method therefor, and an all-solid-state lithium-ion battery. The silicon-carbon negative electrode sheet comprises an interface protection layer, which is arranged in contact with the surface of a negative electrode active layer away from a negative electrode current collector. The materials of the interface protection layer include a composite of an inorganic lithium salt and a lithium-silver alloy, and the interface protection layer is formed by means of an in-situ reaction of an inorganic silver salt and an excessive lithium strip on the surface of the negative electrode active layer. In the present application, the interface protection layer is formed on the negative electrode active layer by means of an in-situ displacement reaction of the inorganic silver salt and the lithium strip, thereby effectively improving the compatibility between a negative electrode material and an electrolyte, reducing the direct contact between the negative electrode material and the electrolyte during charging and discharging, and thus reducing the occurrence of side reactions. In addition, the lithium-silver alloy and the inorganic lithium salt in the interface protection layer can provide an additional lithium source, thereby improving the initial coulombic efficiency of a battery and prolonging the service life of the battery.

The application provides a PdAg alloy electrocatalytic electrode and a preparation method and application thereof. The electrode comprises a conductive substrate and a PdAg alloy catalytic layer deposited on the surface of the substrate; the PdAg alloy catalytic layer has a three-dimensional space structure composed of PdAg alloy particle accumulation. The preparation method of the electrode comprises the following steps: mixing a palladium salt, a silver salt and a supporting electrolyte, heating to a molten state in a protective atmosphere to obtain a molten salt electrolyte; taking the conductive substrate as a cathode, taking the molten salt electrolyte as an electrolyte, setting an anode, applying a constant voltage or a constant current for electrolysis, taking out the cathode after electrolysis, and washing to obtain the PdAg alloy electrocatalytic electrode. The application also provides the PdAg alloy electrocatalytic electrode obtained by the above preparation method and application of the electrode in electrocatalytic preparation of ethylene oxide from ethylene. The electrode has high selectivity and catalytic activity in an electrocatalytic reaction.

The invention relates to the technical field of cyanide-free silver plating solutions and preparation, and discloses a cyanide-free silver plating solution based on composite coordination and double-pulse fine regulation and a preparation method thereof.The cyanide-free silver plating solution comprises silver salt, a composite coordination agent, supporting electrolyte, a pH regulator and a composite functional additive, the silver salt provides silver ions with the concentration being 15-50 g / L, and the composite coordination agent provides silver ions with the concentration being 15-50 g / L; the composite coordination agent is composed of 80-140 g / L of a hydantoin main coordination agent and 15-30 g / L of a nitrogen heterocyclic amide auxiliary coordination agent, the concentration of the supporting electrolyte is 75-130 g / L, the supporting electrolyte is used for enhancing the conductivity of the plating solution, and the pH regulator is used for maintaining the pH value of the plating solution within the alkaline range of 9.0-11.5; the composite functional additive comprises 0.5-4 g / L of a main brightener, 0.1-1.5 g / L of an auxiliary brightener and 5-25 g / L of a grain refiner, and is used for improving the glossiness and compactness of a plating layer; through the preparation method, the difficulty and cost of wastewater treatment during solution plating can be reduced, the environmental protection effect is improved, and the stability of the plating solution during long-term use is improved.

The invention provides a one-step illumination-free etching preparation method of hollow octahedron AgCl / Ag, and belongs to the technical field of illumination-free etching. The method comprises the following steps: dissolving zirconium chloride, 2-amino-terephthalic acid and organic carboxylic acid silver salt in a solvent, adding acetic acid, and performing ultrasonic stirring to obtain turbid liquid; and putting the turbid liquid into a reaction kettle for reaction, and performing post-treatment to obtain the hollow octahedral AgCl / Ag. The specific organic carboxylic acid silver salt is used as a precursor, formation of a hollow structure and in-situ reduction of the silver elementary substance are synchronously achieved, template pre-synthesis and multi-step etching are not needed, external illumination is also not needed, dependence on photoreduction is completely eliminated, and the technological process is greatly simplified; the damage risk of multi-step etching to the carrier structure is avoided, the integrity and yield of the hollow structure are improved, and in-situ uniform generation and loading of Ag are achieved.

The invention provides a preparation method of a supported silver-zinc antibacterial agent, and relates to the technical field of antibacterial agents. Zirconium phosphate is complexed by adopting a complexing agent, then silver salt and zinc salt are loaded in sequence, and the loaded type silver-zinc antibacterial agent is obtained. And the complexing agent is selected from amino carboxylic acid complexing agents. Silver ions in the supported silver-zinc antibacterial agent are good in discoloration resistance, not prone to blackening and good in slow release property.

The invention relates to the field of energy storage devices, and particularly discloses a spatial gradient doped laser-induced graphene asymmetric capacitor which comprises a flexible substrate and an interdigital electrode integrally formed on the flexible substrate through laser induction, a positive electrode finger strip comprises a compound of laser-induced graphene and iron oxide / hydroxide pseudocapacitance materials, and a negative electrode finger strip comprises a negative electrode finger strip and a positive electrode finger strip, and the negative electrode finger strip comprises a compound of laser-induced graphene and a silver nanoparticle electric double-layer material. During preparation, firstly, the flexible substrate is soaked in a bimetallic coordination precursor solution containing ferric salt, silver salt and tannic acid, and then subarea scanning is performed by using lasers with different parameters: Ag < + > is preferentially reduced by low-energy laser to form a negative electrode, and Fe < 3 + >-tannic acid coordination substances are thoroughly decomposed by high-energy laser to generate a positive electrode. According to the application, through differential coordination of tannic acid and laser energy regulation and control, spatial selective construction of the asymmetric electrode is realized on a single substrate in one step, the process is simplified, and the energy density, power density and cycling stability of the device are synergistically improved.

The application provides a method for preparing 1,2-propanediol by homogenous silver electrocatalytic oxidation of propylene, which comprises the following steps: using an anode catalyst as an anode and a cathode catalyst as a cathode, adding a silver salt into an electrolyte aqueous solution, assembling into an electrolytic cell, and introducing propylene gas into the electrolytic cell under a voltage condition; wherein the silver salt is a silver salt capable of providing silver ions in the electrolyte aqueous solution. The method uses a homogenous catalyst, does not need to prepare a supported catalyst, simplifies process steps, and has a large current density for preparing 1,2-propanediol, a high Faraday efficiency, a high energy utilization efficiency, and a high production rate. Meanwhile, the method has mild conditions, is green and environmentally friendly, has a low cost, and is suitable for industrialized production.

The invention provides a hydrogel-fabric composite electrode and a preparation method and application thereof, and belongs to the technical field of health monitoring. The preparation method of the composite electrode comprises the following steps: dissolving polyvinyl alcohol in water, then adding sodium alginate, gelatin and glycerol, and uniformly mixing to obtain a hydrogel precursor solution; the method comprises the following steps: carrying out surface pretreatment on a sewing thread, immersing the sewing thread in a mixed aqueous solution containing gelatin, silver salt and alkali, adding a reducing agent under a heating condition, and generating and growing a silver nanowire on the surface of the sewing thread in situ to obtain a silver nanowire modified sewing thread; fixing the sewing threads modified by the silver nanowires on the surface of the fabric to obtain a fabric Ag electrode; and covering the hydrogel precursor solution with a fabric Ag electrode, and then freezing and unfreezing to obtain the hydrogel-fabric composite electrode. The composite electrode has the advantages of low impedance and high moisture retention, can be used for long-time, continuous and dynamic electrocardiogram monitoring, and has the effect of stably collecting high-signal-to-noise-ratio electrocardiogram signals.

The invention relates to a preparation method of porous carbon containing a lithium composite phase and a silicon-carbon negative electrode material, and the preparation method comprises the following steps: (S1) activating a porous carbon precursor to obtain porous carbon I; (S2) dipping the porous carbon I in an aqueous solution of an oxyacid lithium salt or lithium hydroxide, and carrying out heat treatment in an inert atmosphere to obtain porous carbon II with the lithium content of 2-4wt%; (S3) dipping the porous carbon II in a mixed aqueous solution containing germanium salt, copper salt and silver salt, and calcining in an inert atmosphere to obtain porous carbon containing a lithium composite phase; the molar ratio of germanium to copper to silver in the germanium salt, the copper salt and the silver salt is 1: (3-4): (1-1.5). The lithium composite phase in the pores of the porous carbon can provide mechanical support, buffer the volume expansion of silicon, and is beneficial to silicon deposition, conductivity enhancement and lithium supplement, so that the silicon-carbon negative electrode material prepared from the porous carbon containing the lithium composite phase has good structural stability and excellent electrochemical performance.

The present invention provides a silver ion complex Gemini quaternary ammonium salt along with its preparation method and application. The preparation method includes: the Michael addition reaction and nucleophilic substitution reaction are conducted on dimethylaminoethyl acrylate, long chain thiol and dihaloalkane to obtain Gemini quaternary ammonium salt; and then the Gemini quaternary ammonium salt combines with silver salt to yield the silver ion complexed Gemini quaternary ammonium salt. The present invention includes the silver ion complex of Gemini quaternary ammonium salt and the preparation method and the application. The silver ion complex of Gemini quaternary ammonium salt has higher sterilization and environmental degradability, which greatly reduces the probability of bacterial resistance.

The present invention relates to a living body electrode composition, a living body electrode, and a manufacturing method of a living body electrode. The present invention provides a living body electrode composition capable of forming a living body contact layer for a living body electrode that is excellent in conductivity and biocompatibility, lightweight, and capable of being manufactured at low cost, whose conductivity does not greatly decrease regardless of being wetted with water or dried, and that is soft and excellent in stretchability and adhesiveness. The present invention provides a living body electrode composition containing (A) a polysiloxane; the (A) polysiloxane is bonded to an ionic polymer and has a structure (except for a cage structure) containing a T unit represented by the following general formula (T1); (R 0 SiO 3 / 2 )(T1) In the formula, R 0 is a linking group to the aforementioned ionic polymer; and the aforementioned ionic polymer is a polymer containing a repeating unit having a structure selected from any one of an ammonium salt, a lithium salt, a sodium salt, a potassium salt, a silver salt of a fluorosulfonic acid, a fluorosulfonimide, and an N-carbonylfluorosulfonamide.

The utility model relates to the technical field of hydrometallurgy, in particular to a reaction device for measuring arsenic in water bath, which comprises a water bath cup and a reaction cup, the inner side of the water bath cup is hermetically provided with the reaction cup with the top edge higher than the water bath cup, the top of the reaction cup is hermetically connected with a teflon cover, and the top of the teflon cover is provided with two vertically through mounting holes. A sealing plug is hermetically sleeved in one mounting hole, an air outlet pipe is hermetically sleeved in the other mounting hole, one end of the air outlet pipe far away from the reaction cup is fixedly communicated with a hose, one end of the hose far away from the air outlet pipe is fixedly communicated with a single-hole air pipe, and one end of the single-hole air pipe far away from the hose is hermetically and fixedly communicated with an absorption bottle; a water bath module and a reaction module are separated through a split type water bath, so that cleaning after reaction is facilitated, and the problem that a large black object generated by a standard sample is difficult to clean in the arsenic measurement process of a silver salt method is solved; the requirements of manual measurement, automatic measurement and arsenic spot method measurement are met, the operation is simple and rapid, and the arsenic measurement efficiency is improved.

The application discloses a method for improving the flux and hydrophobicity of a uniform pore membrane by selective fluorination, comprising the following steps: immersing a uniform pore membrane with a pore size of 5-100 nm and containing carboxyl functional groups into a reaction solution, wherein the reaction solution comprises a silver salt catalyst with a mass concentration in the range of 0.1-3.5 wt%, a fluorination reagent with a mass concentration in the range of 0.15-5.5 wt%, an oxidizing agent with a mass concentration in the range of 0.05-7.5 wt%, a co-catalyst with a mass concentration in the range of 0.15-5.5 wt%, water and an organic solvent with a mass concentration in the range of 5-65 wt%; reacting at 4-60 DEG C for 15 min-72 h, taking out the membrane, and then sequentially cleaning the membrane with ethanol and deionized water to obtain a uniform pore membrane with good membrane flux and hydrophobicity. The application improves the permeability and separation selectivity of the uniform pore membrane by selective fluorination, and the uniform pore membrane is not damaged, and the method has universality.

The invention discloses a preparation method of small-size monodisperse silver nanoparticles, and belongs to the technical field of nano materials. According to the method, silver salt serves as a precursor, step-by-step temperature control reaction is carried out in a coexistence system of an alkaline reducing agent and a polyanionic steric hindrance stabilizer, and small-size monodisperse growth of silver nanoparticles is achieved. According to the step-by-step temperature control strategy, the Ostwald ripening and agglomeration growth of the particles are effectively inhibited by accurately regulating and controlling nucleation and growth kinetics and based on an electric double layer-steric hindrance synergistic stabilization mechanism, so that the small size and monodispersity of the silver nanoparticles are synchronously realized. The average particle size of the obtained silver nanoparticles is as low as 9 nm, the particle size distribution range is narrow, and the particles are monodisperse. The prepared silver nanoparticles are suitable for high-performance conductive ink and have wide application prospects in the field of flexible printing electronics.

The invention belongs to the technical field of fuel cell cathode reaction oxygen reduction electrocatalysts, and particularly relates to a preparation method and application of an Agx / Co3-xO4 compound. Cobalt salt and silver salt are used as metal sources, citric acid is used as a complexing agent, a rheological phase reaction is adopted, a precursor complex is prepared through the steps of drying, foaming and the like, and then the electrocatalyst is prepared through muffle furnace heat treatment. A rheological phase method is used for promoting complexing of metal salt and citric acid. A small amount of reducing carbon generated during high-temperature pyrolysis of citric acid enables Ag < + > which should be doped in Co position in Co3O4 to be synchronously reduced into elemental Ag instead of being doped in crystal lattices, so that the Agx / Co3-xO4 compound with a special structure is obtained. Compared with a uniform mixture of common elementary substance Ag and Co3O4, the Agx / Co3-xO4 compound similar to in-situ growth prepared by the method has better ORR catalytic activity, and is expected to provide a new thought for preparing other metal element compounds, so that the requirement of energy equipment on a high-performance ORR electrocatalyst is met.

This invention belongs to the field of electronic materials technology and discloses a flake-shaped silver powder, its preparation method, and its application. The preparation method of the flake-shaped silver powder of this invention includes the following steps: S1, adding an alkaline aqueous solution to a silver salt aqueous solution, mixing and reacting at a first temperature, then raising the temperature to a second temperature, and adding a reducing agent to carry out a reduction reaction to obtain a silver powder precursor; S2, mixing the silver powder precursor with an anionic surfactant, ball milling to obtain a flake-shaped silver powder intermediate; S3, mixing and modifying the flake-shaped silver powder intermediate with a nonionic surface modifier, then aging, drying, and heat treatment to obtain the flake-shaped silver powder. The preparation method of the flake-shaped silver powder of this invention achieves precise control of the microstructure and surface state of the flake-shaped silver powder, and the final product has lower resistivity, a faster resistance decrease rate, and better stability in environmental testing, meeting the requirements for use in high-end electronic pastes.

The invention discloses a modified porous carbon composite material and a preparation method thereof, and the preparation method comprises the following steps: adding porous carbon and a heteroatom compound into a silver salt solution, and carrying out a hydrothermal reaction to obtain silver salt / heteroatom compound doped porous carbon; and depositing lithium salt in the silver salt / heteroatom compound doped porous carbon through an electrochemical deposition method, carbonizing and activating to obtain the modified porous carbon composite material. The obtained material utilizes silver doping and lithium doping to improve the electronic and ionic conductivity of the porous carbon material, reduces defects, improves the first efficiency and diffusion coefficient thereof, and is applied to the silicon carbon material to improve the rate capability and the first efficiency thereof.

The invention provides a nanometer silver wire stock solution, a preparation method, silver wire ink containing the nanometer silver wire stock solution and application, and relates to the field of functional films. Comprising the following steps: dissolving water-soluble silver salt, polyvinylpyrrolidone and FeCl3 in a polyol aqueous solution, stirring for 1-2 hours, and reacting for 2-3 hours at the temperature of 120-140 DEG C in a reducing atmosphere to obtain a monodisperse nano-silver solution; adding the monodisperse nano-silver solution into an aqueous solution containing cetyltrimethylammonium bromide and NaCl, then adding water-soluble silver salt and vitamin C, stirring for 1-2 hours, and uniformly mixing to obtain a solution B; carrying out hydrothermal reaction for 12-16 hours at the temperature of 100-140 DEG C in a reducing atmosphere to obtain a hydrothermal product containing the silver nanowires; performing ultraviolet irradiation on the hydrothermal product to obtain a solution C; the solution C is ultrasonically dispersed in an ethanol water solution of sodium citrate, and a silver nanowire stock solution is obtained. A hydrothermal method and a polyol reduction method are combined to synthesize nano silver wires with uniform sizes, and chemical modification is adopted to improve the stability and dispersity of the nano silver wires.