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30 results about "Alcohol reduction" patented technology

Alcohol Reduction Program. An Alcohol Reduction Program is a new and different way to approach the treatment of alcoholism, heavy drinking, problem drinking and recovery. It is an alternative to 12-step based recovery programs, which require full abstinence to achieve recovery.

Preparation method of highly-dispersed precious metal electrocatalyst with high stability and low load capacity

The invention provides a preparation method of a highly-dispersed precious metal electrocatalyst with high stability and a low load capacity. According to the preparation method, low content preciousmetals such as platinum, palladium, ruthenium, iridium, and the like, are taken as the catalytic active components; cheap metals such as iron, tin, cobalt, nickel, copper, and the like, are taken as sacrificial metals; alloy particles are synthesized through a hydrothermal method, an alcohol reduction method, or a hydrazine reduction method; then alloy particles are loaded on a heteroatom doped functionalized carbon carrier through the anchoring effect of the functionalized carbon carrier so as to obtain a catalyst precursor; then the catalyst precursor is soaked in an acid to dissolve the sacrificial metals, the alloy particles are cracked, the precious metals are left on the heteroatom doped functionalized carbon carrier, and the precious metal catalyst with a highly dispersed structureis obtained. The precious metal catalyst has an excellent catalytic performance, moreover, the loading amount of precious metals is greatly reduced, the utilization rate of precious metals is largelyincreased, the catalyst cost is effectively reduced, and the contradiction between the performance and cost is solved.
Owner:LANZHOU JIAOTONG UNIV

Method of regulating and controlling lengths of silver nanorods in polyhydric alcohol reduction method through hydrogen peroxide

The invention provides a method of regulating and controlling lengths of silver nanorods in a polyhydric alcohol reduction method through hydrogen peroxide. The method comprises the following steps that silver nitrate and glycerol are blended and stirred and dissolved to obtain a solution A; sodium chloride, polyvinylpyrrolidone, the glycerol and the hydrogen peroxide are blended and stirred and reacted at the temperature which ranges from 160 DEG C to 200 DEG C for 15 minutes to 4 hours to obtain a solution B; the solution A is mixed in the solution B and reacted at the temperature which ranges from 160 DEG C to 200 DEG C for 15 minutes to 4 hours, a centrifugal separation of a reaction solution is conducted, a lower layer sediment is obtained and washed, and the silver nanorods with different lengths are obtained. The method is simple in technology, low in cost, the lengths of the silver nanorods can be changed only by adding the hydrogen peroxide, the lengths of the silver nanorods can be regulated and controlled according to the adding amount of the hydrogen peroxide, the diameter of the silver nanorods has no obvious changes while the lengths are changing, the uniqueness of regulation and control is guaranteed, and the method is incapable of introducing impurities and is suitable for large-scale industrial production.
Owner:山东利特纳米技术有限公司

Preparation method of silver nanowires

The invention discloses a preparation method of silver nanowires. The preparation method includes the following steps that the Ag nanowires are prepared through an improved polyhydric alcohol reduction method, put simply, polyvinylpyrrolidone is mixed with ethylene glycol, and an organic dispersant solution is obtained; the organic dispersant solution is added into a three-necked flask and heated and stirred for 5 min in a 160 DEG C oil bath pan; then, an ethylene glycol solution, of a certain concentration, of AgNO3 is dropwise added into the three-necked flask, and full stirring is performed; then, a NaCl solution of a certain concentration is dropwise added, co-heating is performed at 160 DEG C for a certain period of time, and full stirring is performed; and an obtained mixed solution is separated to obtain precipitate, and the precipitate is subjected to centrifugal washing three times with acetone and distilled water to obtain the silver nanowires. Compared with a traditional preparation method of the silver nanowires, the preparation method is simple in process and short in consumed time, does not need high temperature and lowers the requirement for equipment, and the silver nanowires uniform in size and high in purity are prepared.
Owner:合肥松雷信息科技有限公司

Method for synthesizing black nightshade aldehyde

The present invention discloses one simple process of synthesizing hydratropic aldehyde. The material 2-(alpha-phenyl ethyl) benzimidazole salt, 2-(alpha-phenyl ethyl) benzoxazine salt, 2-(alpha-phenyl ethyl) benzthiazole salt, 2-(alpha-phenyl ethyl) imidazoline salt, 2-(alpha-phenyl ethyl) oxazoline salt, or 2-(alpha-phenyl ethyl) thiazoline salt is produced into hydratropic aldehyde through sodium-alcohol reduction, acid hydrolysis and extraction.
Owner:陕西高安绿能生物化工有限公司

Method for removing turbidity of liquor base

ActiveCN105420058AReduced aroma substancesWithout compromising sensory qualitiesAlcoholic beverage preparationAlcohol reductionDistillation
The invention relates to the technical field of food, in particular to a method for removing turbidity of liquor base. The method for removing the turbidity of the liquor base comprises steps as follows: firstly, to-be-removed substances resulting in turbidity after liquor alcohol reduction are enriched through two-step distillation, and then the substances are removed through low-temperature filtering. According to the method, the removal rate of the substances resulting in the turbidity after liquor alcohol reduction can be up to 95%, main aroma matters in the base are not reduced obviously, and the sensory attributes of the base are not damaged. Besides, the base is directly taken as a raw material for removing the turbidity, compared with a finished liquor product as a target, the size is smaller, the operation is more convenient, and the cost is reduced.
Owner:COFCO NUTRITION & HEALTH RES INST +2

Method for improving performance of anode material LiFePO4 for lithium ion cell

The invention belongs to the field of a lithium ion cell and provides a method for improving the performance of an anode material LiFePO4 for a lithium ion cell. The method comprises the specific steps of: 1. utilizing a polyhydric alcohol reduction method to prepare a pure-phase LiFePO4 material; 2. uniformly mixing the pure-phase LiFePO4 material and appropriate amount of a carbon precursor in de-ionized water; carrying out drying heat treatment in an air atmosphere at a certain temperature; and 3. carrying out high-temperature heat treatment on powder obtained by the step 2 under an inert atmosphere for a period of time to obtain the nano-grade lithium ion anode material LiFePO4 with uniform flake-shaped appearance, increasing of electron conductivity and improvement of ion diffusion rate. According to the method, the process is simple, and expensive experimental apparatuses are not needed. Intrinsic electronic conductivity and lithium ion diffusion rate of the anode material are improved obviously, so that the electrochemical performance of the anode material is obviously improved.
Owner:NANJING UNIV OF TECH

Quintuple twin-crystal seed induced silver nanowire and preparation method thereof

The invention discloses a quintuple twin-crystal seed induced silver nanowire and a preparation method thereof. The quintuple twin-crystal seed induced silver nanowire and the preparation method thereof overcome the problems of high impurity and low uniformity of an existing polyhydric alcohol reduction method. The method comprises the steps of smelting gold salt and silver salt in a reductive solvent to form cores so as to obtain twin-crystal seed crystals which are characterized in that the twin-crystal boundary is not ended in geometrical boundary; and then adding a halogens catalyst and silver salt to react under high temperature so as to obtain high-yield single-dispersity silver nanowire of which the surface is provided with a protruded surface or sunken surface substructure; and theside surface of the silver nanowire is incompletely-exposed {100} crystal surface. According to the preparation method, the quintuple twin crystals are quickly smelted to form core so as to obtain the uniform seed crystals; and the synthesized silver wire is high in single dispersity and high in controllability.
Owner:BEIJING HINANO TECH CO LTD

Method for preparing spherical cobalt powder

ActiveCN103128304AOmit the synthesis of Co(OH) <sub>2</sub> the process ofSimple processRefluxAlcohol reduction
The invention provides a method for preparing spherical cobalt powder. The method includes the following steps of mixing CoCL2.6H2O with polyhydric alcohols, adding alkali liquor, preparing mixed solutions with the cobalt concentration of 5-30g / L, heating for 196-198 DEG C, reflux carried out for 2-4 hours, suction filtration, washing, hydrogen drying and reduction under the temperature of 300-500 DEG C, and preparing the cobalt powder. According to the method, the cobalt salt CoCL2.6H2O is directly utilized to be reacted with the polyhydric alcohols to prepare the spherical cobalt powder, and consumed time is shortened by 40%-60% of the time of a traditional cobalt salt reduction method. According to the method, the polyhydric alcohols and the hydrogen drying and the reduction under a high temperature are adopted, not only is spherical appearance of the polyhydric alcohol reduction cobalt powder saved, but also purity of the cobalt powder is improved, under the condition that the cobalt concentration is up to 5-30g / L in an industrialized process, the prepared spherical cobalt powder has good appearance characteristics, the grain size of products can be controlled, and the cobalt conversion rate is up to more than 98%.
Owner:GEM CO LTD

Preparation method for 2-aryl-2-glycollic acid esters

The invention discloses a preparation method for 2-aryl-2-glycollic acid esters. The preparation method includes the following steps: dissolving the compound in formula I (refer to the description) in an organic solvent; adding a metal reducing agent and an acid medium; reacting for 4-12 hours at 4-25 DEG C; obtaining the compound in the formula II through aftertreatment after the reaction is finished. A metal-acid-alcohol reduction system is adopted, so that keto carbonyl groups in alpha-ketoester (or alpha- aldehyde-ester) can be successfully reduced into hydroxyl, and other groups in ester groups and aromatic rings are not affected, as a result, a high purity product with relatively high yield can be obtained. Compared with the NaBH4-MeOH-AcOH-DMF reduction system reported in documents, the preparation method has the following benefits: cheap metals are used as the reducing agent, alcohol is used as the organic solvent, and the acid medium is used as a hydrogen supply reagent, the condition is gentle, the operation is simple, side reaction is greatly reduced, reaction yield is effectively improved, the production cost is reduced, and the preparation method is suitable for industrial production.
Owner:SHANDONG CHENGCHUANG PHARMA R&D

Method of constructing electrochemical aptamer sensor with titanium dioxide nanorod composite as electrochemical tracer agent

The invention relates to a method of constructing an electrochemical aptamer sensor with a TiO2 nanorod composite as an electrochemical tracer agent. The method comprises steps of: depositing Pt-Sn dual-metal nanoparticles on the surface of a cylindrical TiO2 nanorod uniformly through an alcohol reduction method and synthesizing a PtSn@TiO2 nano composite; dispersing the PtSn@TiO2 nano composite in a chitosan solution and then dripping the solution onto the surface of a GCE electrode, fixing NH2-cDNA on the surface of the modified electrode with BS<3> as a diamino crosslinker, and then fixingstreptomycin aptamer on the electrode through DNA hybridization of NH2-cDNA and the aptamer. When a mixture of streptomycin and exonuclease is introduced, the aptamer can combine with streptomycin specificity preferentially and separate from NH2-cDNA on the surface of the electrode so as to form a single-chain DNA structure. Exonuclease acting on the single-chain DNA alone digests and degrades single-chain NH2-cDNA, aptamer-streptomycin compound selectively, so as to enable the compound to release streptomycin, and released streptomycin can combine with remaining aptamer specificity on the surface of the electrode circularly. The electrochemical aptamer sensor can detect streptomycin rapidly and sensitively, and has a large linear range and low detection limit.
Owner:HENAN UNIVERSITY

Method for quickly preparing silver nanoparticle block-graphene-nickel foam composite material

The invention provides a method for quickly preparing a silver nanoparticle block-graphene-nickel foam composite material. The method mainly comprises the following process steps that (1) a chemical vapor deposition method (CVD) is used for growing a layer of graphene on a nickel foam substrate, and a graphene-nickel foam substrate is prepared; (2) a polyhydric alcohol reduction method is adopted for preparing a silver nanoparticle block; (3) the above graphene-nickel foam substrate material is placed into a reactor with magnetons, the silver nanoparticle block obtained after acetone centrifugal attenuation is added, the reactor is placed into an oil bath pan, the rotating speed is adjusted to be 260 r / min to 360 r / min, heat preservation is carried out at a certain temperature for a certain time, taking out, rinsing and drying are carried out, and the silver nanoparticle block-graphene-nickel foam composite material is obtained; and (4) the obtained silver nanoparticle block-graphene-nickel foam composite material is placed into a tube furnace for annealing treatment.
Owner:SOUTHEAST UNIV

Worm-hole-like mesoporous carbon carrier-loaded PtRu catalyst

The invention provides a worm-hole-like mesoporous carbon carrier-loaded PtRu catalyst. WMCs of different pore diameters are synthesized through an improved sol-gel technology; by taking the WMCs as the carriers, a series of WMC-loaded PtRu catalysts are prepared by adopting a pulse microwave-assisting polyhydric alcohol reduction technology; and the physical and chemical properties and electro-catalytic property of the catalysts are subjected to system test and analysis. By researching the PtRu catalysts taking the WMCs of three different pore diameters as the carriers, influence of the porediameters of the carriers to the PtRu electro-catalysis methanol oxidation activity is found through searching. The researching finds that 1), the specific surface area is relatively large under the same appearance; and when carbon carriers of different pore diameters are adopted, the prepared catalyst PtRu granules are basically the same; and 2), the pore diameters of the carriers have a decisiveinfluence on the PtRu catalyst catalysis activity.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI

Upspeeded Operation Of Alcohol-Enabled Gasoline Engines

Spark ignition engine operation at higher RPM so as to reduce alcohol requirements in high efficiency alcohol enhanced gasoline engines is disclosed. Control of engine upspeeding (use of a higher ratio of engine RPM to wheel RPM) so as to achieve an alcohol reduction objective while limiting any decrease in efficiency is described. High RPM alcohol enhanced gasoline engine operation in plug-in series hybrid powertrains for heavy duty trucks and other vehicles is also described.
Owner:MASSACHUSETTS INST OF TECH

Preparation method of catalyst for producing maleic anhydride

The invention relates to a preparation method of a catalyst for producing maleic anhydride. The preparation method mainly solves the problem that the existing catalyst has a small specific surface area and poor hydrocarbon selective oxidation reaction catalytic performances. Through preparation of VOPO4.2H2O and an intercalation reaction with an organic structure, an intercalated VOPO4 compound with an adjustable structure is obtained. Through organic alcohol reduction and roasting activation in a high-pressure synthesis kettle, the active vanadium-phosphorous oxide catalyst is obtained. The preparation method well improves the prior art and can be used for the selective oxidation of gaseous hydrocarbons to produce maleic anhydride.
Owner:CHINA PETROLEUM & CHEM CORP +1

Alcohol Reduction In Beverages

A method of reducing the ethanol content of a beverage which includes ethanol and volatile component is disclosed. The method may include separating the beverage into first and second streams with the first stream including ethanol and the volatile components and the second stream including ethanol but none or little of the volatile components. The method may also include contacting the second stream with a strip solution to produce a treated second stream to reduce the ethanol concentration. The method may also include mixing the treated second stream with the first stream whereby the ethanol content of the beverage is reduced but the volatile components remain substantially unchanged.
Owner:MEMSTAR PTY LTD

Method for preparing copper nano grid transparent electrode based on gas phase reduction of copper oxide

The invention relates to the technical field of semiconductors, in particular to a method for preparing a copper nano grid transparent electrode based on gas phase reduction of copper oxide. The method comprises the following steps: preparing a spinning precursor solution by using copper nitrate, preparing a copper nitrate composite nanowire through electrostatic spinning, and heating and oxidizing the prepared copper nitrate composite nanowire to obtain copper oxide nanofiber; finally, putting the obtained copper oxide nanofiber into an enclosed reaction kettle, wherein the enclosed reactionkettle contains gaseous alcohols, and then placing the reaction kettle at 200-250 DEG C for reaction for 3-5h to obtain a copper nano grid transparent electrode; the method for reducing the copper oxide nanofiber by the solvent gas phase not only keeps the appearance of the nanofiber, but also completely reduces the copper oxide; the problem that a nano grid transparent electrode is easy to breakin the prior alcohol reduction process is solved; the method has the advantages of safety, low cost and excellent reduction effect, ensures the transmittance and the conductivity, and finally obtainsthe copper grid transparent electrode with excellent performance.
Owner:TAIYUAN UNIV OF TECH

Pd<x>Pt<(50-x)>Bi<50> ternary alloy nanoparticles as well as preparation method and application thereof

The invention discloses single-phase Pd<x>Pt<(50-x)>Bi<50> ternary alloy nanoparticles with a close-packed hexagonal structure as well as a preparation method and application thereof, and belongs to the technical field of alloy materials and electrochemistry. The Pd<x>Pt<(50-x)>Bi<50> ternary alloy nanoparticles are prepared and synthesized through a polyhydric alcohol reduction method, the particles are of a single close-packed hexagonal structure, the molar ratio of the Pd component in the alloy is 2.5-15, and the size of the nanoparticles is 10-50 nm. The Pd<x>Pt<(50-x)>Bi<50> ternary alloy nanoparticles synthesized by the method have the advantages of low Pt content, no impurity phase, high ORR and HER activity and stability, and have potential value for realizing large-scale application of a technology with less platinum in the aspects of fuel cells and commercial electrolyzed water.
Owner:HUBEI UNIV

Method for removing turbidity from liquor base liquor

ActiveCN105420058BReduced aroma substancesWithout compromising sensory qualitiesAlcoholic beverage preparationAlcohol reductionDistillation
The invention relates to the technical field of food, in particular to a method for removing turbidity of liquor base. The method for removing the turbidity of the liquor base comprises steps as follows: firstly, to-be-removed substances resulting in turbidity after liquor alcohol reduction are enriched through two-step distillation, and then the substances are removed through low-temperature filtering. According to the method, the removal rate of the substances resulting in the turbidity after liquor alcohol reduction can be up to 95%, main aroma matters in the base are not reduced obviously, and the sensory attributes of the base are not damaged. Besides, the base is directly taken as a raw material for removing the turbidity, compared with a finished liquor product as a target, the size is smaller, the operation is more convenient, and the cost is reduced.
Owner:COFCO NUTRITION & HEALTH RES INST +2

Capsule gold nano particles with double adsorbing property in visible light region and synthesizing method thereof

The invention relates to capsule gold nano particles with a double adsorbing property in a visible light region and a preparation method thereof. The capsule gold nano particles have the characteristics of being uniform in size, good in dispersibility and the like. The ratio of length to diameter of the nanoparticles can be effectively regulated within a range of 1: 1 to 5:2. The preparation method comprises the following steps: (1) preparing gold nanodecanedrons different in size in ethylene glycol by virtue of a polyhydric alcohol reduction method by taking poly diallyldimethylammonium chloride as a stabilizer and a morphological control agent; and (2) in a stirring condition, adding a certain amount of a gold decanedron nanoparticle colloidal solution into an ethylene glycol solution comprising poly diallyldimethylammonium chloride, chloroauric acid and ascorbic acid, and performing a reaction at a temperature of 0-100 DEG C for 30-180 minutes to obtain the capsule gold nanoparticle colloidal solution. The capsule gold nanoparticles obtained by the invention has a double adsorbing property in the visible light region, and has important application value and a wide application prospect in the aspects of solar utilization, photothermal conversion, biological / chemical sensing, medical diagnosis and the like.
Owner:UNIV OF JINAN

A method for preparing silver nanowires by microwave alcohol reduction

The invention discloses a method for preparing a silver nanowire through reduction of microwave alcohol. The method comprises the following steps that silver ion inorganic salt, protective agents and surface active agents are mixed evenly, and precursor mixed liquor A is obtained after microwave processing of 100-300 w is conducted for 0.1-5 min; alcohol reducing agents, protective agents, surface active agents and inorganic salt are mixed evenly, and mother liquor B is obtained; and the mother liquor B is kept warm at 60-140 DEG C, then the precursor mixed liquor A is injected into the mother liquor B, and the silver nanowire is obtained after a reaction is completed. The high-quality silver nanowire with the diameter being 25-120 nm, the length being 20-300 micrometers and the length-diameter ratio being more than 800 can be obtained through processing and optimization of the precursor mixed liquor.
Owner:合肥微晶材料科技有限公司

A kind of silver nanowire induced by quintuple twinned seeds and its preparation method

The invention discloses a quintuple twin-crystal seed induced silver nanowire and a preparation method thereof. The quintuple twin-crystal seed induced silver nanowire and the preparation method thereof overcome the problems of high impurity and low uniformity of an existing polyhydric alcohol reduction method. The method comprises the steps of smelting gold salt and silver salt in a reductive solvent to form cores so as to obtain twin-crystal seed crystals which are characterized in that the twin-crystal boundary is not ended in geometrical boundary; and then adding a halogens catalyst and silver salt to react under high temperature so as to obtain high-yield single-dispersity silver nanowire of which the surface is provided with a protruded surface or sunken surface substructure; and theside surface of the silver nanowire is incompletely-exposed {100} crystal surface. According to the preparation method, the quintuple twin crystals are quickly smelted to form core so as to obtain the uniform seed crystals; and the synthesized silver wire is high in single dispersity and high in controllability.
Owner:BEIJING HINANO TECH CO LTD

Method for preparing spherical cobalt powder

The invention provides a method for preparing spherical cobalt powder. The method includes the following steps of mixing CoCL2.6H2O with polyhydric alcohols, adding alkali liquor, preparing mixed solutions with the cobalt concentration of 5-30g / L, heating for 196-198 DEG C, reflux carried out for 2-4 hours, suction filtration, washing, hydrogen drying and reduction under the temperature of 300-500 DEG C, and preparing the cobalt powder. According to the method, the cobalt salt CoCL2.6H2O is directly utilized to be reacted with the polyhydric alcohols to prepare the spherical cobalt powder, and consumed time is shortened by 40%-60% of the time of a traditional cobalt salt reduction method. According to the method, the polyhydric alcohols and the hydrogen drying and the reduction under a high temperature are adopted, not only is spherical appearance of the polyhydric alcohol reduction cobalt powder saved, but also purity of the cobalt powder is improved, under the condition that the cobalt concentration is up to 5-30g / L in an industrialized process, the prepared spherical cobalt powder has good appearance characteristics, the grain size of products can be controlled, and the cobalt conversion rate is up to more than 98%.
Owner:GEM CO LTD

A method for regulating the length of silver nanorods in polyol reduction method by hydrogen peroxide

The invention provides a method of regulating and controlling lengths of silver nanorods in a polyhydric alcohol reduction method through hydrogen peroxide. The method comprises the following steps that silver nitrate and glycerol are blended and stirred and dissolved to obtain a solution A; sodium chloride, polyvinylpyrrolidone, the glycerol and the hydrogen peroxide are blended and stirred and reacted at the temperature which ranges from 160 DEG C to 200 DEG C for 15 minutes to 4 hours to obtain a solution B; the solution A is mixed in the solution B and reacted at the temperature which ranges from 160 DEG C to 200 DEG C for 15 minutes to 4 hours, a centrifugal separation of a reaction solution is conducted, a lower layer sediment is obtained and washed, and the silver nanorods with different lengths are obtained. The method is simple in technology, low in cost, the lengths of the silver nanorods can be changed only by adding the hydrogen peroxide, the lengths of the silver nanorods can be regulated and controlled according to the adding amount of the hydrogen peroxide, the diameter of the silver nanorods has no obvious changes while the lengths are changing, the uniqueness of regulation and control is guaranteed, and the method is incapable of introducing impurities and is suitable for large-scale industrial production.
Owner:山东利特纳米技术有限公司

Method for synthesizing black nightshade aldehyde

The present invention discloses one simple process of synthesizing hydratropic aldehyde. The material 2-(alpha-phenyl ethyl) benzimidazole salt, 2-(alpha-phenyl ethyl) benzoxazine salt, 2-(alpha-phenyl ethyl) benzthiazole salt, 2-(alpha-phenyl ethyl) imidazoline salt, 2-(alpha-phenyl ethyl) oxazoline salt, or 2-(alpha-phenyl ethyl) thiazoline salt is produced into hydratropic aldehyde through sodium-alcohol reduction, acid hydrolysis and extraction.
Owner:陕西高安绿能生物化工有限公司

Upspeeded Operation Of Alcohol-Enabled Gasoline Engines

Spark ignition engine operation at higher RPM so as to reduce alcohol requirements in high efficiency alcohol enhanced gasoline engines is disclosed. Control of engine upspeeding (use of a higher ratio of engine RPM to wheel RPM) so as to achieve an alcohol reduction objective while limiting any decrease in efficiency is described. High RPM alcohol enhanced gasoline engine operation in plug-in series hybrid powertrains for heavy duty trucks and other vehicles is also described.
Owner:MASSACHUSETTS INST OF TECH

Beer decolorizing film and preparation method thereof

The invention discloses a beer decolorizing membrane and a preparation method thereof.The beer decolorizing membrane is prepared by taking a mixed solution of PVA, PAA and a cross-linking agent as a hydrophilic membrane coating solution, a mixed solution of gamma-aminopropyltriethoxysilane, water and ethyl alcohol as a hole blocking solution and a non-woven fabric coated with a mixed solution of PEI, NMP and LiCl as a base membrane, immersing the base membrane into the hole blocking solution, and carrying out vacuum drying to obtain the beer decolorizing membrane. And then coating the hydrophilic coating liquid on the surface, and carrying out polymerization reaction. The prepared beer decolorizing membrane is good in hydrophilicity, large in flux and high in pollution resistance, pigments, residual sugar, protein, amino acid and a small amount of other macromolecular flavor components in beer can be effectively intercepted, colorless and transparent beer with the unchanged alcoholic strength is prepared, the colored beer which does not penetrate through the membrane can be sold as low-alcohol beer after being diluted and subjected to alcohol reduction, and the method is suitable for popularization and application. Therefore, the maximum resource utilization of the raw beer is realized.
Owner:JIANGSU JIUMO HIGH TECH CO LTD

A LSPR-tunable gold@silver core-shell nanostar and its preparation method

The invention relates to an LSPR-adjustable gold@silver core-shell nano-star and a preparation method thereof. The gold@silver core-shell nanostar includes a gold nanostar and a silver shell covering the surface of the gold nanostar, and the gold nanostar includes a gold nanosphere at the core and a gold nanothorn on its surface. The present invention first adopts the liquid phase chemical method regulated by seeds to regulate the concentration of gold nanospheres in the precursor and utilizes the regulating effect of surfactant on the growth of gold nanostructures to prepare LSPR peaks with adjustable size between 587-890nm Gold nanostars; further adopt the polyhydric alcohol reduction method, use ethylene glycol as the solvent and reducing agent, and silver nitrate as the silver source, coat a layer of silver shell on the surface of the gold nanostars in situ, and greatly improve the quality of the nanostars. The surface-enhanced Raman scattering (SERS) activity of the structure is maintained while maintaining the morphology and LSPR interval of the core-shell nanostar. This LSPR-tunable gold@silver core-shell nanostar provides a new material option for plasmon-driven solar-chemical energy photocatalytic reactions.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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