Class / Patent application number | Description | Number of patent applications / Date published |
075370000 | Using nonmetallic material which is liquid under standard conditions | 76 |
20090007727 | MATERIALS HANDLING AND SAMPLING - A bulk sample is fed with a liquid into a mixing tank ( | 01-08-2009 |
20090071292 | PREPARATION OF SILVER SPHERES BY THE REDUCTION OF SILVER POLYAMINE COMPLEXES - Dispersed uniform spherical silver particles were prepared in the absence of a protective colloid by rapidly mixing concentrated iso-ascorbic acid and silver-polyamine complex solutions. | 03-19-2009 |
20090090214 | Method for forming nano-scale metal particles - A method for forming nano-scale metal particles by a novel reducing agent is described. The method can be carried out at room temperature and under an atmospheric environment by relatively simple processes to prepare nano-scale metal particles with a diameter less than 20 nm. This method comprises the following steps. At first, a first blending process is performed to blend a metal salt and a first solvent together to form a first solution. Then, a second blending process is performed to blend a reducing agent and a second solvent together to form a second solution. The reducing agent comprises one compound selected from the group consisting of the following or combination thereof: boron-containing hydride and boron-containing hydrocarbon. Following that, a third blending process is performed to blend the first solution and the second solution together to form a third solution. Finally, the reducing agent is used to reduce the metal salt in the third solution to form the nano-scale metal particles. In addition, if a dispersing agent is added after the nano-scale metal particles are formed, the nano-scale metal particles can have a particle diameter less than 10 nm. | 04-09-2009 |
20090090215 | Method and Unit for Continuously Producing Metal Microparticle - The producing unit for continuously producing metal microparticles formed of a multicomponent alloy accompanied by the generation of a byproduct gas through an early reaction of the formation of the metal particles comprises a first mixing unit for continuously supplying and mixing a plurality of solutions for conducting the early reaction, a second mixing unit for continuously supplying another solution to the reaction liquid containing the metal microparticles formed in the early reaction and for mixing the two solutions, to introduce dissimilar metal atoms into the crystal lattices of the metal microparticles, and a gas-liquid separation unit that is installed in a midway of the pipe which is made so as to have enough length to finish the early reaction, and which continuously passes the reaction liquid to the second mixing unit from the first mixing unit, and that continuously removes the byproduct gas generated with the proceeding of the early reaction. | 04-09-2009 |
20090120238 | Method of manufacturing metal nanoparticles - The present invention relates to a method for manufacturing metal nanoparticles including: preparing a first solution including a metal precursor and a non-polar solvent; preparing a second solution with adding a capping molecule presented by the following Formula 1 into the first solution; and stirring the second solution with applying heat. | 05-14-2009 |
20090183599 | MINERAL EXTRACTION SYSTEM AND PROCESS - A trench leaching system including a tank containing a charge of ore flooded with a liquid solvent up to the level of a gutter. A pump recirculates the solvent upwardly through the charge of ore via a sparging array for dissolving minerals which are reclaimed through a series of cyclones and stripped out of the pregnant solvent by a carbon column. The rate and pressure of the solvent flowing through the sparging array upwardly though the of ore are kept below the amount that would fluidise the ore and at an amount that produces channels which follow random paths that vary with time through the ore, wherein particles of ore in the channels are agitated by the solvent and wherein particles of ore outside the channels are maintained substantially static and in contact with the liquid solvent. Such a system can process low grade ore at low operating and capital costs. | 07-23-2009 |
20100037731 | SILVER NANOPARTICLES AND PROCESS FOR PRODUCING SAME - Processes for producing silver nanoparticles are disclosed. A reaction mixture comprising a silver compound, a carboxylic acid, an amine compound, and an optional solvent is optionally heated. A hydrazine compound is then added and the mixture is further reacted to produce the silver nanoparticles. | 02-18-2010 |
20100101370 | COMPOSITE NICKEL PARTICLES AND A PREPARING METHOD THEREOF - Composite Ni particles each having a silica coat is improved in oxidation resistance and heat shrink characteristics. A method of preparing composite Ni particles by using an organic Ni composite includes steps of: stirring and heating a nickel salt solution and a raw material of silica coat at a temperature ranging 25° C. to 80° C. for 0.5 hours to 2 hours; filtering, cleaning and drying a resultant product into an organic nickel composite; and thermally treating the organic nickel composite at a temperature ranging from 200° C. to 500° C. for 0.5 hours to 4 hours. The resultant composite Ni particles have excellent oxidation resistance and heat shrink characteristics. | 04-29-2010 |
20100192728 | Spherical Copper Fine Powder and Process for Producing the Same - Provided is spherical copper fine powder in which the average grain size of copper fine powder is 0.05 μm or more and 0.25 μm or less. Additionally provided is a method of producing spherical copper fine powder including the steps of preparing a slurry by adding cuprous oxide to an aqueous medium containing an additive of natural resin, polysaccharide or a derivative thereof, adding 5 to 50% of an acid aqueous solution to the slurry at a time within 15 minutes, and thereby performing disproportionation. The process enables speedy, efficient and stable production of metallic copper particles controlled in particle shape or particle size, particularly copper fine powder having small particles in size. | 08-05-2010 |
20100224026 | A PROCESS FOR SYNTHESISING SILVER NANOPARTICLES - An improved process for synthesising discrete high definition silver nanoparticles in large batch volumes. The method enables the reproducible production of silver nanoparticles having a predetermined size, shape and surface chemistry. The process comprises the steps of forming silver seeds from a reagent comprising, a silver source and a reducing agent; and growing the thus formed silver seeds into silver nanoparticles wherein the step forming silver seeds and/or growing the silver seeds into silver nanoparticles is performed using micro fluidic flow chemistry. | 09-09-2010 |
20100251856 | METHODS FOR PREPARING METAL AND METAL OXIDE NANOPARTICLES - Metal and metal oxide nanoparticles can be prepared via a simple synthesis by using a hydrolysable gallotannin, such as tannic acid, to reduce a metal precursor compound and to act as a stabilizer for the resultant nanoparticles. By controlling the molar ratio of hydrolysable gallotannin to metal precursor and/or the initial pH of the reagents one can achieve control over the size and polydispersity of the resultant nanoparticles. In particular, the controlled addition of a metal precursor into a solution of the hydrolysable gallotannin, as described herein, can yield small nanoparticles, for example 1 nm to 40 nm diameter nanoparticles, with low polydispersity. The methods disclosed herein can be performed at room temperature. | 10-07-2010 |
20100269635 | PRODUCTION OF METAL NANOPARTICLES - Processes for the production of metal nanoparticles. In one aspect, the invention is to a process comprising the steps of mixing a heated first solution comprising a base and/or a reducing agent (e.g., a non-polyol reducing agent), a polyol, and a polymer of vinyl pyrrolidone with a second solution comprising a metal precursor that is capable of being reduced to a metal by the polyol. In another aspect, the invention is to a process that includes the steps of heating a powder of a polymer of vinyl pyrrolidone; forming a first solution comprising the powder and a polyol; and mixing the first solution with a second solution comprising a metal precursor capable of being reduced to a metal by the polyol. | 10-28-2010 |
20110011208 | METHOD FOR PREPARING SILVER NANOPARTICLES BY EMPLOYING ETHANOLAMINE - The present invention provides a method for producing silver nanoparticles by employing ethanolamine. The method of this invention can be easily operated and no organic solvent is required. Ethanolamine first reacts with a mixture of poly(oxyalkylene)-amine/epoxy or copolymers of poly(styrene-co-maleic anhydride) (abbreviated as SMA) to generate polymeric polymers. The polymeric polymers then reduce silver ions to silver atoms which are dispersed in the form of silver nanoparticles. Functional groups of the polymeric polymers can chelate with silver ions and be stably compatible with water or organic solvents, whereby the silver nanoparticles can be stably dispersed without aggregation and the produced silver nanoparticles. | 01-20-2011 |
20110017019 | PROCESS FOR THE PREPARATION OF SILVER NANO PARTICLES - The invention relates to a process for the preparation of silver nano particles comprising dissolving a surfactant in ethanol to obtain a first solution; dissolving a silver precursor in water to obtain a second solution; adding the second solution to the first solution to obtain a third solution; dissolving a reducing agent in water to obtain a reducing agent solution and adding the reducing agent solution to the third solution to obtain silver nano particles | 01-27-2011 |
20110023658 | Methods For The Production Of Silver Nanocubes - Embodiments of the present invention are directed to novel methods for the solution-based production of silver nanocubes. This method differs, inter alia, from the traditional polyol method in that reactants (such as AgNO | 02-03-2011 |
20110167962 | METHOD FOR THE SYSNTHESIS OF METALLIC NANO PRODUCTS - The embodiments herein provide a method of synthesis for metallic nano-products such as metallic nano-antennas, metallic nano-rods, metallic nano-wires, metallic nano-prolate spheroids and metallic nano-oblate spheroids using saturated and unsaturated carboxylic acids. The method involves preparing a reaction mixture by mixing a polar protic solvent, a polar aprotic solvent or a non-polar solvent, a saturated fatty acid or an unsaturated fatty acid and a metallic salt. Then a mixture of reducing agents is prepared by mixing a polar protic solvent, a polar aprotic solvent or a non-polar solvent and a saturated fatty acid or an unsaturated fatty acid. The reaction mixture and the mixture of reducing agents are combined and heated solvo-thermally for a pre-determined period of time at a pre-determined temperature. | 07-14-2011 |
20110197711 | PEPTIDE MEDIATED SYNTHESIS OF METALLIC AND MAGNETIC MATERIALS - The present invention includes methods for producing magnetic nanocrystals by using a biological molecule that has been modified to possess an amino acid oligomer that is capable of specific binding to a magnetic material. | 08-18-2011 |
20110296950 | AQUEOUS DISPERSIONS OF METALLIC PARTICLES - A method of preparing an aqueous dispersion comprising metal particles of mean diameter from 0.5-200 nm by weight and an aqueous carrier liquid, including the steps of i) providing a mixture comprising at least one metal salt, aqueous carrier liquid and a stabilizer for the particles ii) contacting the mixture with a reducing agent to form a reaction mixture iii) causing the at least one metal salt to react with the reducing agent to form a dispersion comprising metal particles and acid wherein step iii) is partly or completely performed in the presence of anion exchange resin whereby the acid is exchanged for a hydroxide ion from the resin and/or is sorbed by the resin. | 12-08-2011 |
20120180600 | Method for Producing High-Purity Tungsten Powder - Provided is a method for producing a high-purity tungsten powder having a phosphorus content of less than 1 wtppm; wherein an ammonium tungstate solution containing 1 wtppm or more of phosphorus as an impurity in terms of the inclusion in tungsten is used as a starting material, this solution is neutralized with hydrochloric acid at a temperature of 50° C. or less to adjust the pH at 4 or more and less than 7 so as to precipitate ammonium paratungstate undecahydrate crystals, the resulting solution is heated to 70 to 90° C. and filtered in a high-temperature state so as to obtain ammonium paratungstate pentahydrate crystals, the obtained crystals are calcined so as to form a tungsten oxide, and the tungsten oxide is subject to hydrogen reduction so as to obtain a high-purity tungsten powder. Additionally provided is a method for producing a high-purity tungsten powder having a phosphorus content of 0.4 wtppm or less; wherein the ammonium tungstate solution is neutralized with hydrochloric acid to adjust the pH at 4 or more and 6 or less, and this solution is subject to the same procedure as described above so as to obtain a high-purity tungsten powder. Consequently, the phosphorus content can be efficiently reduced. | 07-19-2012 |
20120240728 | Method for Producing Silver Nanofilaments - A method of producing silver nanofilaments that is relatively fast and may be carried out at normal room temperatures (e.g., from about 10° C. to about 25° C.). The method of producing silver nanofilaments includes the steps of adding a solid silver salt to liquid ether to form a mixture, adding a liquid fatty acid to the mixture, adding a reducing agent to the mixture, allowing the ingredients to react, and recovering silver nanofilaments. | 09-27-2012 |
20120247275 | METHOD OF PRODUCING SILVER NANOWIRES IN LARGE QUANTITIES - Monodispersed silver nanowires are formed by a process utilizing a polyol. A capping agent is mixed in the polyol to form a substantially homogeneous solution. The solution is heated to a level below a boiling point of the polyol. The solution is diluted with a diluant which may consist of water and/or alcohol, and the solution is centrifuged to produce the silver nanowires. | 10-04-2012 |
20120279352 | METHOD FOR PREPARING SILVER NANOPARTICLES BY EMPLOYING ETHANOLAMINE AND POLY(STYRENE-CO-MALEIC ANHYDRIDE) COPOLYMERS - The present invention provides a method for producing silver nanoparticles by employing ethanolamine. The method of this invention can be easily operated and no organic solvent is required. Ethanolamine first reacts with copolymers of poly(styrene-co-maleic anhydride) (abbreviated as SMA) to generate polymeric polymers. The polymeric polymers then reduce silver ions to silver atoms which are dispersed in the form of silver nanoparticles. Functional groups of the polymeric polymers can chelate with silver ions and be stably compatible with water or organic solvents, whereby the silver nanoparticles can be stably dispersed without aggregation and the produced silver nanoparticles. | 11-08-2012 |
20130008287 | METHOD FOR PREPARING NANO SILVER PARTICLES - The invention provides a method for preparing nano silver particles comprising mixing polyvinyl pyrrolidone (PVP) and silver nitrate (AgNO | 01-10-2013 |
20130061718 | PROCESS FOR PREPARING ANISOTROPIC METAL NANOPARTICLES - The present invention relates to a new method for preparing anisotropic metal nanoparticles with high aspect ratios and different types of structures by means of catalysis by Atomic Quantum Clusters (AQCs). | 03-14-2013 |
20130087020 | CONTINUOUS FLOW SYNTHESIS OF NANOMATERIALS USING IONIC LIQUIDS IN MICROFLUIDIC REACTORS - A method for manufacturing metal nanoparticles includes the use of a microfluidic device. The microfluidic device has a first channel having a first inlet; a second channel having a second inlet; a third channel having a third inlet; and a main channel having a main inlet and an outlet. The first channel, second channel, and third channel all lead into the main channel. The method involves injecting a solution of a metal/ligand into the first inlet, injecting a solution of a reducing agent into the second inlet, injecting a solvent comprised of an ionic liquid into the third inlet, and injecting an inert carrier into the main inlet. The solution of the metal/ligand, the solution of the reducing agent, the solvent and the inert carrier are combined together in the main channel, and the metal/ligand and the reducing agent are reacted for a time sufficient to form a metal nanoparticle. | 04-11-2013 |
20130098205 | Production Method of Composite Silver Nanoparticle - A production method of composite silver nanoparticle including the steps of: arranging at least an alcohol solvent selected from alcohols with a carbon number of 1 to 12 composed of methanol, ethanol, propanol, buthanol, pentanol, hexanol, heptanol, octhanol, nonanol, decanol, undecanol and dodecanol; preparing an alcohol solution by mixing a silver salt into the alcohol solvent added more excessively than the mol number of the silver salt so as to become an excess alcohol solution; heating the excess alcohol solution in a reaction chamber at a generation temperature PT generating an aldehyde for a generation time; forming a silver core through reducing of the silver salt by the alcohol solvent and/or the aldehyde; and forming a composite silver nanoparticle having an organic coating layer originated from the alcohol solvent around the silver core. | 04-25-2013 |
20130152737 | METHOD FOR PREPARING SILVER NANOWIRE - Disclosed is a method for preparing silver nanowire. The method includes: providing a first solution and a second solution; mixing the first solution and the second solution to obtain a third solution including a plurality of silver nanowires; and performing a purification procedure on the third solution to obtain the silver nanowires. Particularly, the first solution includes a capping agent dispersed in a first alcohol solvent, and the second solution includes a silver salt and a metal precursor dispersed in a second alcohol solvent, wherein the metal precursor has a formula: | 06-20-2013 |
20130160608 | Process For Producing Silver Nanowires - Described are processes for the production of silver nanowires comprising forming a reaction mixture including a polyol, an organic chemical adsorbed to a silver surface, a chemical to form a halide and/or pseudohalide and a chemical which forms a redox pair. A silver salt is added to the reaction mixture and temperature is maintained to form the silver nanowires. | 06-27-2013 |
20130186239 | NANOWIRE RING PREPARATION METHODS, COMPOSITIONS, AND ARTICLES - Methods and compositions are disclosed for preparation of both open and closed nanowire metal rings. Such rings may be used in conductive layers of electronic devices. | 07-25-2013 |
20130192423 | METHOD OF PRODUCING SILVER NANOWIRES - A method for the production of silver nanowire comprising the steps of: heating a first solution comprising a polyol and a salt; adding a second solution comprising a polyol and a silver nitrate; adding a third solution comprising a polyol and an organic polymer as a template carrier creating a combined solution; stirring the combined solution at an elevated temperature for a time period followed by cooling the combined solution; and washing the combined solution and isolating the silver nanowires. | 08-01-2013 |
20130283974 | Methods of manufacturing high aspect ratio silver nanowires - A process for manufacturing high aspect ratio silver nanowires is provided, wherein the recovered silver nanowires exhibit an average diameter of 25 to 80 nm and an average length of 10 to 100 μm; and, wherein the total glycol concentration is <0.001 wt % at all times during the process. | 10-31-2013 |
20130291683 | LOW-HAZE TRANSPARENT CONDUCTORS - This disclosure is related to low-haze transparent conductors, ink compositions and method for making the same. | 11-07-2013 |
20130298732 | METHODS FOR CONTROLLING METAL NANOSTRUCTURES MORPHOLOGY - Described herein are methods of controlling metal nanowire morphologies by adjusting the reaction conditions of a polyol synthesis. In particular, by purging the reaction with an inert gas, batch-to-batch consistency can be achieved. | 11-14-2013 |
20130305881 | METHOD FOR SYNTHESIZING SELF-ASSEMBLING NANOPARTICLES - Embodiments disclosed herein relate to a method for synthesizing self-assembling nanoparticles with defined plasmon resonances. More particularly, certain embodiments disclosed herein relate to an improved method for synthesizing self-assembling gold/gold sulfide nanoparticles by dialyzing samples during the self-assembly process. | 11-21-2013 |
20130333520 | METHOD FOR PRODUCING METAL MICROPARTICLES - Provided is a producing method for metal microparticles for which the particle diameter is controlled. At least two types of fluids to be processed are used, and at least one of those fluids to be processed is a metallic solution wherein a metal and/or metallic compound is dissolved in a solvent. Of the fluids to be processed other than the above, at least one is a reducing agent fluid that includes a reducing agent. The fluids to be processed are mixed in a thin film fluid created between at least two processing surfaces ( | 12-19-2013 |
20130340570 | NANOWIRE PREPARATION, METHODS, COMPOSITIONS, AND ARTICLES - Nanowire preparation methods, compositions, and articles are disclosed. Such nanowires may be thicker than other nanowires and may be useful in devices requiring high electrical current densities. | 12-26-2013 |
20140026714 | CONTINUOUS FLOW REACTOR AND METHOD FOR NANOPARTICLE SYNTHESIS - A continuous flow reactor for nanoparticle synthesis comprises a modular system including a plurality of interconnected tubular components for fluid flow therethrough including a first tubular inlet and a second tubular inlet connected to a three-way junction comprising a tubular mixer. A continuous flow method for nanoparticle synthesis comprises flowing a growth solution and a reaction-initiating solution into a mixing portion of a flow reactor to form a mixed solution; flowing the mixed solution through a holding portion of the flow reactor for a predetermined residence time to form a reacted solution comprising nanoparticles; and continuously removing the reacted solution from the flow reactor so as to achieve a throughput of nanoparticles of at least about 0.5 mg/min. | 01-30-2014 |
20140069233 | TITANIUM METAL POWDER PRODUCED FROM TITANIUM TETRACHLORIDE USING AN IONIC LIQUID AND HIGH-SHEAR MIXING - Titanium tetrahalide (preferably titanium tetrachloride) is reduced to titanium metal particles by reaction with an alkali metal dispersed in a non-aqueous, organic ionic liquid. The dispersion is enhanced using high-shear mixing. By-product alkali metal chloride salt(s) is dissolved in the ionic liquid. Precipitated titanium metal powder is readily separated from the ionic liquid solution as a product. And the separated solution may be subjected to electrolysis to recover chlorine gas, electrodeposited alkali metal, and the ionic liquid. Other metal halides may be added with the titanium halide to form titanium-based alloys or other titanium based products. | 03-13-2014 |
20140238196 | SIZE-CONTROLLED SYNTHESIS OF MONODISPERSED GOLD NANOPARTICLES VIA CARBON MONOXIDE GAS REDUCTION - A method for forming monodispersed gold particles that includes preparing a solution of gold ions at a specific concentration and pH. Then, while stirring, dispersing CO gas into the solution. The gold ions in the solution are reduced by the CO reducing agent to form desired monodispersed gold particles. The reaction conditions are selected such that the growth period of the monodispersed gold particles is greater than a nucleation period of the gold ions. | 08-28-2014 |
20140251087 | PRODUCTION OF NANOSTRUCTURES - Methods of producing nanowires and resulting nanowires are described. In one implementation, a method includes heating a reaction mixture including (i) a solvent; (ii) a metal-containing reagent; (iii) a templating agent; and (iv) a seed-promoting agent (SPA) that is a source of halide anions, thereby producing a product that includes nanowires of the metal. The solvent includes at least two hydroxyl groups per molecule. A ratio of a concentration of the halide anions in the reaction mixture to an overall concentration of the metal in the reaction mixture, including ionic and elemental metal forms, is up to 10. The heating is carried out at a seeding temperature, followed by a growth temperature that is higher than the seeding temperature. | 09-11-2014 |
20140352497 | DOUBLE JET PROCESS FOR PRODUCING NANOSILVER DISPERSIONS - This invention provides a double jet process to produce silver nanoparticles, the process comprising providing a double-jet system to form a reaction mixture in a reactor containing the reactor solution by adding a basic aqueous silver ammonia complex solution and a basic reducing solution to the reactor solution at the same controlled rate with a targeted pH profile for the reactor solution from acidic to basic determined by the addition rate and the initial pH of the reactor solution. Use of this process results in a dispersion comprised of silver nanoparticles that have a specific size and de-agglomeration level that is determined by the process conditions. | 12-04-2014 |
20150047468 | METHOD OF MANUFACTURING SILVER NANOWIRES - A method of manufacturing silver nanowires includes: forming a first solution including a dispersion stabilizer and a polyol; forming a second solution including a dispersion stabilizer, a silver precursor, a halogen-ion donor, deionized water, and the polyol; forming a third solution by adding the second solution to the first solution; heating the third solution from a first temperature to a second temperature; and forming silver nanowires by maintaining the third solution at the second temperature. | 02-19-2015 |
20150082946 | METHOD OF MANUFACTURING NANOPARTICLES USING ION EXCHANGE RESIN AND LIQUID REDUCING PROCESS - Provided is a method of manufacturing nanoparticles using an ion exchange resin and a liquid reducing process. The method includes (a) capturing a nanoparticle precursor from a solution in which impurities are mixed using an ion exchange resin, (b) washing and layer-separating the breakthrough ion exchange resin, (c) separating only the ion exchange resin in which the nanoparticle precursor is captured from the layer-separated ion exchange resin, and (d) putting the separated ion exchange resin into a mixture solution in which a reducing agent and a dispersing agent are mixed. | 03-26-2015 |
20150107413 | METHODS FOR FABRICATION OF NANOSTRUCTURES - Systems and methods for fabricating nanostructures using other nanostructures as templates. A method includes mixing a dispersion and a reagent solution. The dispersion includes nanostructures such as nanowires including a first element such as copper. The reagent solution includes a second element such as silver. The second element at least partially replaces the first element in the nanostructures. The nanostructures are optionally washed, filtered, and/or deoxidized. | 04-23-2015 |
20150336173 | METHOD FOR MANUFACTURING SILVER NANOWIRES USING COPOLYMER CAPPING AGENTS - This invention relates to novel capping agents for manufacturing silver nanowires having a diameter of less than 100 nm and a length of 5 μm or more and, more specifically, to a method of manufacturing silver nanowires and silver nanowires manufactured thereby, wherein the silver nanowires are imparted with a large aspect ratio by using vinylpyrrolidone-co-vinylimidazole copolymers (PIC) as novel capping agents in place of existing capping agents when the silver nanowires are synthesized by mixing and heating (polyol method) a silver salt precursor, a reducing solvent (a reduction agent), and a capping agent. The use of this technique enables the easy synthesis of silver nanowires having a diameter of less than 100 nm and a length of 5 μm or more, with almost no granular silver particles formed during synthesis. | 11-26-2015 |
20150354024 | METHODS FOR BINDING AND PRECIPITATING GOLD USING MICROBIAL-DERIVED METALLOPHORES AND THEIR USES - The present application discloses metallophores that complex soluble gold and generate solid gold forms, including gold nanoparticles. In an embodiment, the metallophores are microbial metabolites isolated from organisms that are resistant to gold, or are analogs thereof. Methods of using the metallophores to extract and detect gold, along with detectors comprising the metallophores are disclosed. | 12-10-2015 |
20160001370 | REDUCING AGENTS FOR SILVER MORPHOLOGY CONTROL - A method comprising providing at least one reducing agent comprising at least one phenol group, the at least one reducing agent not also comprising a halogen atom, and reducing at least one silver ion to at least one silver nanowire in a reaction mixture comprising the at least one reducing agent. Exemplary reducing agents are 3,4-dihydroxybenzotriazole, 2,2′-isobutylidene-bis-(4,6-dimethyl-phenol), and tannic acid. | 01-07-2016 |
20160067777 | METHOD FOR SYNTHESIZING SELF-ASSEMBLING NANOPARTICLES - Embodiments disclosed herein relate to a method for synthesizing self-assembling nanoparticles with defined plasmon resonances. More particularly, certain embodiments disclosed herein relate to an improved method for synthesizing self-assembling gold nanoparticles by dialyzing samples during the self-assembly process or in presence of a surface to reduce certain subpopulations. | 03-10-2016 |
20160082515 | A METHOD OF PREPARING PURE PRECIOUS METAL NANOPARTICLES WITH LARGE FRACTION OF (100) FACETS, NANOPARTICLES OBTAINED BY THIS METHOD AND THEIR USE - The invention provides a method of preparing pure precious metal nanoparticles of controlled sizes and having (100) facets, wherein a precursor substance contained in a reagent solution is subjected to a reduction reaction using a reducing agent contained in the reagent solution to provide nanoparticles, and the reduction reaction is stopped by rapid lowering of the reaction solution temperature. In the process of the invention, the need to use surfactants or other organic particles to stabilize the (100) facets is eliminated. | 03-24-2016 |
20160114393 | HYDROTHERMAL METHOD FOR MANUFACTURING SILVER NANOWIRES - A method for manufacturing high aspect ratio silver nanowires is provided, wherein a total glycol concentration is <0.001 wt % at all times. | 04-28-2016 |
20160114394 | LOW OXYGEN SILVER NANOWIRE MANUFACTURING METHOD - A process for manufacturing high aspect ration silver nanowires is provided, wherein the total glycol concentration is <0.001 wt % at all times during the process. | 04-28-2016 |
20160114396 | METHOD OF MANUFACTURING SILVER NANOWIRES - A process for manufacturing silver nanowires is provided, wherein the recovered silver nanowires have a high aspect ratio; and, wherein the total glycol concentration is <0.001 wt % at all times during the process. | 04-28-2016 |
20160114397 | SILVER NANOWIRE MANUFACTURING METHOD - A process for manufacturing silver nanowires is provided, wherein the recovered silver nanowires have a high aspect ratio; and, wherein the total glycol concentration is <0.001 wt % at all times during the process. | 04-28-2016 |
20160121402 | METHOD FOR PREPARING METAL NANOPARTICLES USING A MULTI-FUNCTIONAL POLYMER AND A REDUCING AGENT - The present invention relates to a method for preparing metal nanoparticles, specifically, by reducing a precursor of metal or metal oxide in an aqueous solution, wherein polyethylenimine and an additional reducing agent are used, thereby obtaining metal nanoparticles having superior properties in improved yield. | 05-05-2016 |
20160121403 | METHOD FOR PRODUCING METAL NANOWIRES, METAL NANOWIRES, METHOD FOR PRODUCING SILVER NANOWIRES, AND SILVER NANOWIRES - Provided are a metal nanowire production method capable of producing long and thin metal nanowires, and metal nanowires produced thereby. A metal nanowire production method comprising, a step for preparing a solution containing a metal salt, a polymer, at least one selected from a group consisting of halides, sulfides, carbonates, and sulfates, and an aliphatic alcohol, and a step for heating and reacting the solution at the temperature of 100° C. to 250° C. for 10 minutes or more while maintaining a practical shear stress applied to the solution at 10 mPa·m or less, wherein, during the heating and reacting step, ultraviolet-visible absorption spectrum change of the solution is measured, and a reaction time is controlled on the basis of the ultraviolet-visible absorption spectrum information. | 05-05-2016 |
20160121404 | METHOD FOR MANUFACTURING SILVER PARTICLES - The present invention provides a method for producing silver particles, the method capable of adjusting the particle diameter to be within the range of several tens of nanometers to several hundreds of nanometers and also producing silver particles with a uniform particle diameter. The present invention relates to a method for producing silver particles by heating of a reaction system containing a thermally-decomposable silver-amine complex precursor, including a process of producing a silver-amine complex, a process of adding an organic compound having an amide (carboxylic amide) as a skeleton to a reaction system, and a process of heating the reaction system, in which a water content in the reaction system before the heating is 20 to 100 parts by weight relative to 100 parts by weight of the silver compound. The present invention can produce uniform silver particles while the particle diameter is controlled. | 05-05-2016 |
20160136732 | NANOPARTICLE PRODUCTION METHOD, PRODUCTION DEVICE AND AUTOMATIC PRODUCTION DEVICE - A nanoparticle production method, production apparatus and automatic production apparatus that allow continuous mass production of nanoparticles with a uniform particle diameter and allow freely adjusting the generation time are provided. This nanoparticle production apparatus is characterized by being configured from: reaction tubes ( | 05-19-2016 |
20160175937 | METHODS OF NANOSTRUCTURE FORMATION AND SHAPE SELECTION | 06-23-2016 |
20160184900 | METHOD FOR PREPARING NANO-COPPER POWDER - The present invention discloses a method for preparing nano-copper powder. The method disclosed in the present invention comprises: (1) providing a dispersion solution, the dispersion solution contains at least one copper salt precursor and at least one disperser, the disperser is dissoluble in both water and weak solvents; (2) providing a reducer dispersion solution, the reducer dispersion solution contains at least one reducer; (3) contacting the reducer dispersion solution with the dispersion solution provided by step (1) in a condition enough to reduce the copper salt precursor by the reducer into elementary copper; (4) separating copper nano-particles from reaction solution obtained by step (3), and drying separated copper nano-particles by spray drying, so as to obtain the nano-copper powder. The nano-copper powder prepared by the method in accordance with the present invention is dispersible in both water and environment-friendly weak solvents. Therefore, the obtained nano-copper powder can be used to prepare weak solvent-type electrically conductive ink and overcome the drawbacks of poor weather resisting property of water-based electrically conductive ink and severe environmental pollution of solvent-type electrically conductive ink. | 06-30-2016 |
075371000 | And settling of free metal from solution | 17 |
20090266202 | METHOD FOR MANUFACTURING METAL NANOPARTICLE - A method for manufacturing a metal nanoparticle is provided. The method includes steps of: a) providing a metal salt solution, b) providing a reducing agent, c) providing a protecting agent, d) providing an alkaline solution, e) mixing the salt solution, the reducing agent, the protecting agent and the alkaline solution to form a slurry within a high-gravity field, and f) separating the metal nanoparticle from the slurry. | 10-29-2009 |
20090288517 | PHOTOCHEMICAL SYNTHESIS OF METALLIC NANOPARTICLES FOR INK APPLICATIONS - A method of forming an ink, including photochemically producing stabilized metallic nanoparticles and formulating the nanoparticles into an ink. | 11-26-2009 |
20100077889 | METHOD TO ENHANCE CLARIFICATION IN A MIXING REACTOR AND SAID MIXING REACTOR - The invention relates to a mixing reactor for mixing a liquid and pulverous solid, clarification the solution that is formed and discharging the clarified solution from the mixing reactor, in the lower section of which a fluidized bed is formed. The invention also relates to a method for mixing a liquid and pulverous solid into each other in a fluidized bed, for clarification the solution that is formed and for discharging the clarified solution from the mixing reactor. | 04-01-2010 |
20110185853 | Methods For The Production Of Silver Nanowires - Embodiments of the present invention are directed to novel methods for the solution-based production of silver nanowires by adaptation of the polyol process. Some embodiments of the present invention can be practiced at lower temperature and/or at higher concentration than previously described methods. In some embodiments reactants are added in solid form rather than in solution. In some embodiments, an acid compound is added to the reaction. | 08-04-2011 |
20110185854 | Synthesis of Fluorescent Metal Nanoclusters - Fluorescent metal nanoclusters were prepared. | 08-04-2011 |
20120118105 | REACTOR AND CONTINUOUS PROCESS FOR PRODUCING SILVER POWDERS - Disclosed herein is a continuous process for producing silver powders comprising silver particles. Each powder is comprised of silver particles that have a specific morphology that is determined by the process conditions and the use of one or more particle modifiers in the process. A reactor for carrying out the process is also disclosed. The silver powders produced are particularly useful in electronic applications. | 05-17-2012 |
20120125156 | METHODS FOR PRODUCTION OF SILVER NANOSTRUCTURES - Methods for producing silver nanostructures with improved dimensional control, yield, purity, monodispersity, and scale of synthesis. | 05-24-2012 |
20120186394 | Bulk Synthesis of Nanoporous Palladium and Platinum Powders - Disclosed is a method for providing nanoporous palladium and platinum powders. These materials were synthesized on milligram to gram scales by chemical reduction of tetrahalo-complexes with ascorbate in a concentrated aqueous surfactant at temperatures between −20° C. and 30° C. The prepared particles have diameters of approximately 50 nm, wherein each particle is perforated by pores having diameters of approximately 3 nm, as determined by electron tomography. These materials are of potential value for hydrogen and electrical charge storage applications. | 07-26-2012 |
20130205950 | METHOD FOR PRODUCING NANOPARTICLES FROM A NOBLE METAL AND USE OF THE NANOPARTICLES THUS PRODUCED - The invention relates to a method for producing nanoparticles from a noble metal and to the use of the nanoparticles produced using the method. It is the object of the invention to provide possibilities for a simple and inexpensive production of nanoparticles from a noble metal in which influence can be directly made on the particle size of the nanoparticles thus produced. Nanoparticles of silver, gold and platinum can be produced with an adjustable particle size using the method in accordance with the invention. A chemical compound of the respective noble metal is dissolved in an aqueous solution or the noble metal is dissolved in an acid mixture. An aqueous solution containing at least one surfactant is added to the respective solution and a reductant is additionally added with silver and platinum. The parameters: concentration of the chemical compound or of the noble metal, the temperature, pH and the fraction of surfactant are influenced to influence the particle size. The noble metal particles precipitated from the respective solution can be centrifuged out. | 08-15-2013 |
20130255444 | Process for Producing Silver Nanowires and Agent for Controlling Growth of Silver Nanowires - Provided is a process for silver nanowire production in which the major-axis length of the silver nanowires can be controlled in a wide range and an agent for controlling the growth of silver nanowires. A process for silver nanowire production which is characterized in that an agent for controlling the growth of silver nanowires which comprises a polymer obtained by polymerizing one or more polymerizable monomers comprising an N-substituted (meth)acrylamide is reacted with a silver compound in a polyol at 25-180° C. The agent for controlling the growth of silver nanowires is characterized by comprising a polymer which has units of an N-substituted (meth)acrylamide as a polymerizable monomer. | 10-03-2013 |
20140033870 | METHOD FOR SEPARATING METAL NANOPARTICLES FROM COLLOIDAL METAL SOLUTION - A method for separating metal nanoparticles from colloidal metal solution includes providing a colloidal metal solution, including a plurality of metal nanoparticles; mixing a precipitating agent with the colloidal metal solution for maintaining the power of hydrogen value (pH) of the colloidal metal solution in a specific value; keeping the colloidal metal solution stationary for a static time at an environmental temperature such that the metal nanoparticle precipitates from the colloidal metal solution, and the colloidal metal solution forms a supernatant and a precipitating liquid; separating a precipitate from the precipitating liquid by a filtering process; and liquid blasting the precipitate by a first solvent to obtain the metal nanoparticles. | 02-06-2014 |
20140102255 | METHOD OF PREPARING SILVER NANOWIRE - The present invention is related to a method of preparing silver nanowire, wherein the method uses aldehyde derivatives as reducing agent to reduce silver salt with positive one valence of silver, to silver nanowire under the presence of organic accelerant. The preparation steps comprise: (A) providing a solution comprising an organic accelerant and an aldehyde derivative, heating the solution and then adding an acid into the solution to form a first solution; and (B) adding a silver salt solution with positive one valence of silver into the first solution to form silver nanowire. | 04-17-2014 |
20150336174 | METHODS FOR PRODUCTION OF SILVER NANOSTRUCTURES - Methods for producing silver nanostructures with improved dimensional control, yield, purity, monodispersity, and scale of synthesis. | 11-26-2015 |
075373000 | Copper(Cu) recovered | 1 |
20100224027 | METHOD FOR PRODUCING DISPERSED, CRYSTALLINE, STABLE TO OXIDATION COPPER PARTICLES - Dispersed, crystalline, stable to oxidation copper particles are prepared in the absence of polymeric dispersants by rapidly reducing a Cu(I) salt with an Fe(II) carboxylic acid complex in water. The resulting microns sized copper powders contain only organics which decompose at temperatures low enough not to interfere with sintering processes and the formation of conductive copper structures. | 09-09-2010 |
075374000 | Nickel(Ni) or Cobalt(Co) recovered | 3 |
20090025510 | Method for manufacturing nickel nanoparticles - The present invention relates to a method for manufacturing nickel nanoparticles and more particularly to a method including preparing a mixture solution by adding a reducing agent, a dispersing agent and a nickel salt to a polyol; stirring and heating the mixture solution; and producing nickel nanoparticles by reacting the mixture solution, so that it allows mass production of nickel nanoparticles having uniformity of size 30 to 50 nm and high dispersibility. | 01-29-2009 |
20100263486 | SYNTHESIS OF NICKEL NANOPOWDERS - The invention relates to a method of making a nickel powder having an average particle size of less than about 100 nanometers, comprising contacting, at a temperature of about 50° C. to about 95° C., a reduction solution with a nickel solution to form a reaction mixture. The reduction solution comprises a base and a reducing agent. The nickel solution comprises a nickel compound water, a nucleation agent, a surfactant or dispersant, and combinations thereof. The yield of nickel nanoparticles is greater than about 90% relative to starting moles of nickel compound. The nickel powder is suitable for use in electronics applications and sintered metal applications. | 10-21-2010 |
20120132033 | METAL POWDER - The invention relates to novel pre-alloyed metal powders a method for production and use thereof. | 05-31-2012 |