Using Nonmetallic Material Which Is Liquid Under Standard Conditions Patents (Class 75/370)
  • Patent number: 10833332
    Abstract: A method for scaled-up synthesis of PtNi nanoparticles. Synthesizing a Pt nanoparticle catalyst comprises the steps of: synthesizing PtNi nanoparticles, isolating PtNi/substrate nanoparticles, acid leaching the PtNi/substrate, and annealing the leached PtNi/substrate nanoparticles, and forming a Pt-skin on the PtNi/substrate nanoparticles.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: November 10, 2020
    Assignee: UChicago Argonne, LLC
    Inventors: Vojislav Stamenkovic, Gregory K. Krumdick, Rongyue Wang, Nenad Markovic, Krzysztof Z. Pupek
  • Patent number: 10576546
    Abstract: Isolating metal nanowires from a reaction mixture also containing ancillary inorganic particles distinct from the nanowires, includes: providing a mixture of metal nanowires with large particles having at least two dimensions 250 nm or more, and small particles of which the largest dimension is less than 200 nm, in the form of a dispersion in a solvent medium having a viscosity at 25° C. 10 mPa·s or more; leaving the mixture to settle out under conditions conducive to the formation of a supernatent phase including the small particles and of a precipitate comprising the metal nanowires and the large particles; isolating the precipitate, and dispersing the isolated precipitate in a solvent medium having a viscosity at 25° C. less than 10 mPa·s; leaving the suspension to settle out under conditions conducive to the precipitation of said large particles; and recovering the nanowires in the form of a dispersion in the supernatent phase.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: March 3, 2020
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventors: Jean-Pierre Simonato, Caroline Celle, Tristan Lescouet, Céline Mayousse
  • Patent number: 10549351
    Abstract: A method for producing nickel powder sequentially includes: a mixing step of adding, to a nickel ammine sulfate complex solution, an insoluble solid as seed crystals and a polyacrylate or lignosulfonate as a dispersant to form a mixed slurry; and a reduction and precipitation step of charging a reaction vessel with the mixed slurry and blowing hydrogen gas into the mixed slurry in the reaction vessel to reduce nickel complex ions in the mixed slurry to form nickel precipitate on the surface of the insoluble solid, wherein the amount of the dispersant added in the mixing step is controlled to control the number of the nickel powder obtained by formation of the nickel precipitate in the reduction and precipitation step.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: February 4, 2020
    Assignee: Sumitomo Metal Mining Co., Ltd.
    Inventors: Shin-ichi Heguri, Yoshitomo Ozaki, Kazuyuki Takaishi, Tomoaki Yoneyama, Hideki Ohara, Osamu Ikeda, Yohei Kudo
  • Patent number: 10471514
    Abstract: Provided is an efficient method for producing nickel powder from a solution containing a nickel ammine complex, the method including adding seed crystals to a solution containing a nickel ammine complex and subjecting the resulting mixture to hydrogen reduction under high temperatures and high pressures to produce nickel powder, which makes it possible to maintain the quality of the nickel powder produced and reduce the amount of the seed crystals used. The method for producing nickel powder is characterized by adding seed crystals and a dispersant having an anionic functional group to the solution containing a nickel ammine complex to form a mixture slurry, and subjecting the mixture slurry to pressurized hydrogen reduction treatment by blowing hydrogen into the mixture slurry in a high temperature and high pressure atmosphere to cause a reduction reaction, thereby reducing the nickel ammine complex in the mixture slurry to obtain nickel powder.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: November 12, 2019
    Assignees: KOCHI UNIVERSITY, NATIONAL UNIVERSITY CORPORATION, Sumitomo Metal Mining Co., Ltd.
    Inventors: Kazumichi Yanagisawa, Junhao Zhang, Osamu Ikeda, Hideki Ohara, Tomoaki Yoneyama, Yohei Kudo, Shin-ichi Heguri
  • Patent number: 10434577
    Abstract: Provided is nickel powder obtained by adding seed crystals to a nickel ammine complex solution and performing hydrogen reduction reaction under high temperatures and high pressures, wherein the nickel powder does not produce dust during handling, and a container can be efficiently filled with the nickel powder. The method for producing nickel powder includes: adding seed crystals and a surfactant having a nonionic or anionic functional group to a solution containing a nickel ammine complex to forma mixed slurry; and subjecting the mixed slurry to hydrogen reduction under high temperature and high pressure conditions in a pressure vessel to obtain nickel powder from the mixed slurry.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: October 8, 2019
    Assignees: KOCHI UNIVERSITY, NATIONAL UNIVERSITY CORPORATION, SUMITOMO METAL MINING CO., LTD.
    Inventors: Kazumichi Yanagisawa, Junhao Zhang, Kazuyuki Takaishi, Tomoaki Yoneyama, Shin-ichi Heguri, Hideki Ohara, Osamu Ikeda, Yohei Kudo, Yoshitomo Ozaki
  • Patent number: 10376898
    Abstract: A method for manufacturing high aspect ratio silver nanowires is provided, wherein the silver solids produced comprise high aspect ratio silver nanowires and are depleted in low aspect ratio silver particles.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: August 13, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Raymond M. Collins, Patrick T. McGough, William R. Bauer
  • Patent number: 10286382
    Abstract: In accordance with the purpose(s) of the present disclosure, as embodied and broadly described herein, embodiments of the present disclosure provide for silver nanowires, methods of making silver nanowires, core-shell nanostructures, methods of making core-shell nanostructures, core-frame nanostructures, methods of making core-frame nanostructures, and the like.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: May 14, 2019
    Assignee: GEORGIA TECH RESEARCH CORPORATION
    Inventors: Dong Qin, Younan Xia, Yin Yang, Jumei Li, Xiaojun Sun, Robson Rosa da Silva, Miaoxin Yang
  • Patent number: 10118224
    Abstract: Provided is a method for producing nickel powder from a nickel ammine sulfate complex solution, comprising treatment steps of: (1) a seed crystal production step of producing nickel powder having an average particle size of 0.1 to 5 ?m; (2) a seed crystal addition step of adding the nickel powder obtained in the step (1) as seed crystals to form a mixed slurry; (3) a reduction step of forming a reduced slurry containing nickel powder formed by precipitation of a nickel component in the mixed slurry on the seed crystals; and (4) a growth step of performing solid-liquid separation to separate and recover the nickel powder as a solid phase component and then blowing hydrogen gas into a solution prepared by adding the nickel ammine sulfate complex solution to the recovered nickel powder to grow the nickel powder to form high purity nickel powder.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: November 6, 2018
    Assignees: KOCHI UNIVERSITY, NATIONAL UNIVERSITY CORPORATION, SUMITOMO METAL MINING CO., LTD.
    Inventors: Kazumichi Yanagisawa, Junhao Zhang, Shin-ichi Heguri, Hideki Ohara, Osamu Ikeda, Tomoaki Yoneyama, Yohei Kudo, Yoshitomo Ozaki
  • Patent number: 10099291
    Abstract: 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.
    Type: Grant
    Filed: May 26, 2014
    Date of Patent: October 16, 2018
    Assignees: SHOWA DENKO K.K., OSAKA UNIVERSITY
    Inventors: Katsuaki Suganuma, Jinting Jiu, Masaya Nogi, Tohru Sugahara, Teppei Araki, Hiroshi Uchida, Hideki Ohata, Masanao Hara, Eri Okazaki
  • Patent number: 9999926
    Abstract: A method for manufacturing high aspect ratio silver nanowires is provided, wherein a total glycol concentration is <0.001 wt % at all times.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: June 19, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Patrick T. McGough, Janet M. Goss, George J. Frycek, George L. Athens, Wei Wang, Jonathan D. Lunn, Robin P. Ziebarth, Richard A. Patyk
  • Patent number: 9878306
    Abstract: In accordance with the purpose(s) of the present disclosure, as embodied and broadly described herein, embodiments of the present disclosure provide for silver nanowires, methods of making silver nanowires, core-shell nanostructures, methods of making core-shell nanostructures, core-frame nanostructures, methods of making core-frame nanostructures, and the like.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: January 30, 2018
    Assignee: Georgia Tech Research Corporation
    Inventors: Dong Qin, Younan Xia, Yin Yang, Jumei Li, Xiaojun Sun, Robson Rosa da Silva, Miaoxin Yang
  • Patent number: 9840753
    Abstract: A method of producing a composite material comprising: supplying a metal compound (MPC) of a product metal (MP) and a reductant (R) capable of reducing the metal compound (MPC) of the product metal (MP) to a reactor; forming a composite material comprising a matrix of oxidized reductant (R0) of the reductant (R), the product metal (MP) dispersed in the matrix of oxidized reductant (R0), and at least one of (i) one or more metal compounds (MPCR) of the metal compound (MPC) in one or more oxidation states and (ii) the reductant (R); and recovering the composite material from the reactor, wherein the metal compound (MPC) of the product metal (MP) is fed to the reactor such that it is in excess relative to the reductant (R).
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: December 12, 2017
    Assignee: Coogee Titanium Pty Ltd
    Inventors: Daniel Jewell, Peter Duxson, Christian Doblin
  • Patent number: 9302322
    Abstract: The present invention relates to nanocompounds comprising a charge-transfer complex of at least two different size metal atomic quantum clusters (AQCs) and the use thereof as luminescent nanocompounds, particularly for the use thereof as fluorescent nanocompounds; as well as the method for obtaining and detecting them.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: April 5, 2016
    Assignee: NANOGAP SUB NM POWDER, S.A.
    Inventor: Manuel Arturo Lopez Quintela
  • Patent number: 9127333
    Abstract: A method and system for producing an alloy using a flowing stream of superheated halide vapor to flash vaporize liquid halides forming a mixture of gases in predetermined and controllable ratios. The mixture of gases are introduced into a flowing stream of liquid alkali or alkaline earth metal or mixtures to establish a reaction zone where the mixture of gases is reduced to an alloy and a salt. The liquid metal is in a sufficient amount in excess of stoichiometric to maintain substantially all the alloy and salt below the sintering temperatures thereof away from the reaction zone. Equipment for practicing the method is also disclosed. The system relates to alloys of B, Be, Bi, C, Fe, Ga, Ge, Hf, In, Mo, Nb, P, Pb, Re, S, Sb, Si, Sn, Ta, Ti, V, W and Zr.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: September 8, 2015
    Inventors: Lance Jacobsen, Adam Benish
  • Publication number: 20150148870
    Abstract: The present invention discloses a method for preparing noble metal nanoparticles, comprising the following steps: a) preparing an Olea Europaea fruit extract; b) preparing an Acacia Nilotica extract; c) mixing the Olea Europaea fruit extract and the Acacia Nilotica extract for preparing a mixed extract; d) providing an aqueous solution containing a noble metal compound dissolved therein; e) mixing the mixed extract obtained in step c) and the aqueous solution of step d) to form noble metal nanoparticles; noble metal nanoparticles obtained thereby and their use.
    Type: Application
    Filed: September 15, 2014
    Publication date: May 28, 2015
    Inventors: Awatif Ahmed HENDI, Manal A. AWAD, Nada E. EISA, Khaled M. ORTASHI
  • Patent number: 9034075
    Abstract: 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 ?m; and, wherein the total glycol concentration is <0.001 wt % at all times during the process.
    Type: Grant
    Filed: April 5, 2013
    Date of Patent: May 19, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Jonathan D. Lunn, Andrzej Malek
  • Publication number: 20150107413
    Abstract: 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.
    Type: Application
    Filed: January 5, 2015
    Publication date: April 23, 2015
    Inventors: Vera N. Lockett, Mark D. Lowenthal, William J. Ray, John Gustafson
  • Patent number: 9005663
    Abstract: An exemplary embodiment of the invention is a method for making silver nanoparticles, and includes steps of reacting a silver salt with a phosphene amino acid to make silver nanoparticles. Exemplary phosphene amino acids include trimers, with a particular example being a trimeric amino acid conjugate containing one phosphene group. In an exemplary method of the invention, the silver nanoparticles may be produced in timer periods of less than about 30 minutes, and at temperatures of less than about 40° C. Other methods of the invention are directed to methods for stabilizing silver nanoparticles.
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: April 14, 2015
    Assignee: The Curators of the University of Missouri
    Inventors: Kannan Raghuraman, Kattesh K. Katti
  • Publication number: 20150098858
    Abstract: The purpose of the present invention is to provide novel solid gold-nickel alloy nanoparticles and a production method thereof. Provided are solid gold-nickel alloy nanoparticles having a particle diameter of 500 nm or less. In particular, gold-nickel alloy nanoparticle are provided in which the concentration of nickel in the gold-nickel alloy is 2.0-92.7 wt %, and the main component is a gold-nickel alloy in which gold and nickel are in a nano-level fine mixed state. The gold-nickel alloy particles have as the main component a substitutional solid solution of gold and nickel. These gold-nickel alloy particles are optimally formed by mixing and discharging gold ions, and a substance having reducing characteristics in the thin film fluid occurring between processing surfaces which are arranged facing each other, which can move towards and away from each other, and at least one of which rotates relative to the other.
    Type: Application
    Filed: March 15, 2013
    Publication date: April 9, 2015
    Applicant: M. TECHNIQUE CO., LTD.
    Inventors: Masaki Maekawa, Kazuya Araki, Daisuke Honda, Masakazu Enomura
  • Publication number: 20150099172
    Abstract: Methods for synthesizing metal nanoparticles and the nanoparticles so produced are provided. The methods include addition of surfactant to a novel reagent complex between zero-valent metal and a hydride. The nanoparticles produced by the method include oxide-free, zero-valent tin nanoparticles useful in fabricating a battery electrode.
    Type: Application
    Filed: October 4, 2013
    Publication date: April 9, 2015
    Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Michael Paul Rowe, Nikhilendra Singh
  • Publication number: 20150098883
    Abstract: The present invention disclosed use of lactam as a solvent in the preparation of nanomaterials by precipitation method, sol-gel method or high temperature pyrolysis. These methods are able to recycle lactam solvent, which meet requirements of environmental protection.
    Type: Application
    Filed: January 19, 2012
    Publication date: April 9, 2015
    Applicant: SHANGHAI GENIUS ADVANCED MATERIAL (GROUP) CO., LTD.
    Inventors: Housheng Xia, Guisheng Yang
  • Publication number: 20150099136
    Abstract: A method for producing silver powder wherein a silver solution containing a silver complex and a reductant solution are continuously mixed to provide a reaction liquid, the method including: a step of preparing a silver nucleus solution wherein a silver solution for nucleation which contains a silver complex, a solution containing a strong reductant, and a dispersant are mixed to provide the silver nucleus solution; a step of preparing a reductant solution containing nuclei wherein the silver nucleus solution obtained and a weak reductant having a standard electrode potential higher than that of the strong reductant are mixed to obtain the reductant solution containing nuclei; and a step of growing particles wherein the reductant solution containing nuclei and a silver solution for particle growth containing a silver complex are continuously mixed to provide a reaction solution, in which the silver complex is reduced to thereby grow silver particles.
    Type: Application
    Filed: February 27, 2013
    Publication date: April 9, 2015
    Inventors: Masamu Nishimoto, Yoshihiro Okabe, Satoshi Kanada
  • Patent number: 8992660
    Abstract: The present application provides a method for fabricating hollow metal nano particles and hollow metal nano particles fabricated by the same.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: March 31, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Jun Yeon Cho, Sang Hoon Kim, Gyo Hyun Hwang, Kwanghyun Kim
  • Publication number: 20150082946
    Abstract: 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.
    Type: Application
    Filed: October 10, 2013
    Publication date: March 26, 2015
    Applicant: Soonchunhyang University Incustry Academy Cooperation Foundation
    Inventors: In Hyoung RHEE, Hyun Jun Jung
  • Publication number: 20150047877
    Abstract: Disclosed are a wire and a method for manufacturing the same. The method includes heating a solvent, adding a capping agent to the solvent, and forming a metallic wire by adding a metallic compound to the solvent. The solvent includes a first solvent having a first reduction power and a second solvent having a second reduction power greater than the first reduction power. The capping agent includes a first capping agent containing a polymer having a first molecular weight, and a second capping agent containing a polymer having a second molecular weight greater than the first molecular weight.
    Type: Application
    Filed: July 25, 2012
    Publication date: February 19, 2015
    Applicants: NANOPYXIS CO., LTD., LG INNOTEK CO., LTD.
    Inventors: Joon Rak Choi, Jong Woon Moon, Young Sun You, Yong Sang Cho, Kyoung Hoon Chai, Hyeok Soo Suh, Sang Hoon Lee, Yong Sang Lee, Won Jong Choi
  • Publication number: 20150047468
    Abstract: 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.
    Type: Application
    Filed: March 4, 2014
    Publication date: February 19, 2015
    Applicants: Korea Advanced Institute of Science and Technology, Samsung Display Co., Ltd.
    Inventors: Hyun-Woo KOO, Tae-Woong KIM, Jung-Yong LEE, Jaemin LEE, Seonju JEONG
  • Patent number: 8956440
    Abstract: The present invention provides improved methods for preparing cetyltrimethylammonium bromide-capped gold nanoparticles through the use of hydroquinone as a reducing agent. Such methods generally comprise the steps of: (1) providing a seed solution comprising a gold nanoparticle; (2) providing an aqueous growth solution comprising: (i) cetyltrimethylammonium bromide, (ii) hydrogen tetrachloroaurate, and (iii) hydroquinone; and (3) adding a quantity of the seed solution to the aqueous growth solution.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: February 17, 2015
    Assignee: William Marsh Rice University
    Inventors: Leonid Vigderman, Eugene R. Zubarev
  • Publication number: 20150034883
    Abstract: While a water reaction system containing silver ions is irradiated with ultrasonic waves to cause cavitation therein, a reducing agent containing solution, which contains an aldehyde as a reducing agent, is mixed with the water reaction system to deposit silver particles, the solid-liquid separation of which is carried out, and thereafter, the separated silver particles are washed and dried to produce a spherical silver powder which has a closed cavity in each particle thereof.
    Type: Application
    Filed: February 12, 2013
    Publication date: February 5, 2015
    Inventors: Koji Hirata, Noriaki Nogami
  • Publication number: 20150017465
    Abstract: The present invention provides a method for producing a silver powder, the method being capable of producing a silver powder with high productivity and at low cost, the silver powder having an average particle diameter of 0.3 to 2.0 ?m and a narrow particle size distribution, and provides a silver powder produced by the production method. According to the present invention, the method for producing a silver powder includes: quantitatively and continuously supplying each of a silver solution containing a silver complex and a reductant solution to a flow path; and quantitatively and continuously reducing a silver complex in a reaction solution obtained by mixing the silver solution with the reductant solution in the flow path, wherein the reaction solution is made to contain a dispersant, and also a silver concentration in the reaction solution is adjusted to be in a range of 5 to 75 g/L.
    Type: Application
    Filed: February 22, 2013
    Publication date: January 15, 2015
    Inventors: Yoshihiro Okabe, Kenya Ito, Shuuji Okada, Masamu Nishimoto, Akihiro Murakami, Shintaro Ishikawa
  • Patent number: 8932384
    Abstract: The invention described relates to the synthesis of gold nanorods in high concentrations in a single batch and their use in detection of nitroexplosives using Surface Enhanced Raman Spectroscopy (SERS). The nanoparticle suspensions were stable up to a month after preparation. The aggregated nanorods have a strong SERS effect for nitroexplosives (3,5-dintro-4-methylbenzoic acid and 2,4,6-TNT) with sensitivity of 5.0 pg in a few seconds. The results obtained in numerous tests demonstrated a high reproducibility that makes aggregated nanorods very attractive substrates for defense and security applications.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: January 13, 2015
    Assignee: University of Puerto Rico
    Inventors: Samuel P. Hernandez-Rivera, Oliva M. Primera-Pedrozo, Ana M. Chamoun-Emanuelli, Wilmarie Medina-Ramos
  • Publication number: 20150011655
    Abstract: The invention relates to a method of synthesis of substantially pure nanoparticles in a continuous-flow system, in which a precursor substance solution undergoes reduction reaction using a reducing agent solution and nanoparticles are produced, wherein the reduction reaction is terminated by adding an agent neutralizing the reducing agent and a stable nanoparticle colloid is produced. In the method of the invention a need for using surfactants or other organic molecules for nanoparticle stabilization has been eliminated.
    Type: Application
    Filed: September 12, 2014
    Publication date: January 8, 2015
    Inventors: Rafal JURCZAKOWSKI, Adam LEWERA, Pawel KULBOKA
  • Publication number: 20150001452
    Abstract: The present invention provides silver nano-particles that are excellent in stability and develop excellent conductivity by low-temperature calcining, a producing method for same, and a silver coating composition comprising the silver nano-particles.
    Type: Application
    Filed: January 7, 2013
    Publication date: January 1, 2015
    Inventors: Masato Kurihara, Kazuki Okamoto, Yuki Iguchi
  • Publication number: 20140352497
    Abstract: 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.
    Type: Application
    Filed: April 23, 2014
    Publication date: December 4, 2014
    Applicants: E I DU PONT DE NEMOURS AND COMPANY, CLARKSON UNIVERSITY
    Inventors: ROBERTO IRIZARRY-RIVERA, DANIEL V. GOIA, LU LU
  • Publication number: 20140346412
    Abstract: The present invention provides silver nano-particles that are excellent in stability and develop excellent conductivity by low-temperature calcining, a producing method for same, and a silver coating composition comprising the silver nano-particles.
    Type: Application
    Filed: January 7, 2013
    Publication date: November 27, 2014
    Inventors: Kazuki Okamoto, Yuki Iguchi, Masato Kurihara
  • Publication number: 20140342497
    Abstract: A method for producing a metal article may include: Producing a supply of a composite metal powder by: providing a supply of molybdenum metal powder; providing a supply of a sodium compound; combining the molybdenum metal powder and the sodium compound with a liquid to form a slurry; feeding the slurry into a stream of hot gas; and recovering the composite metal powder; and consolidating the composite metal powder to form the metal article, the metal article comprising a sodium/molybdenum metal matrix. Also disclosed is a metal article produced accordance with this method.
    Type: Application
    Filed: August 1, 2014
    Publication date: November 20, 2014
    Inventors: Naresh Goel, Carl Cox, David Honecker, Eric Smith, Christopher Michaluk, Adam DeBoskey, Sunil Chandra Jha
  • Publication number: 20140329089
    Abstract: A method of preparing a metal nanorod. The method includes seeding a metal nanoparticle within the lumen of a nanotube, and growing a metal nanorod from the seeded metal nanoparticle to form a metal nanorod-nanotube composite. In some cases, the nanotube includes metal binding ligands attached to the inner surface. Growing of the metal nanorod includes incubating the seeded nanotube in a solution that includes: a metal source for the metal in the metal nanorod, the metal source including an ion of the metal; a coordinating ligand that forms a stable complex with the metal ion; a reducing agent for reducing the metal ion, and a capping agent that stabilizes atomic monomers of the metal. Compositions derived from the method are also provided.
    Type: Application
    Filed: November 15, 2012
    Publication date: November 6, 2014
    Applicant: The Regents of the University of California
    Inventors: Yadong Yin, Chuanbo Gao
  • Publication number: 20140322612
    Abstract: A particulate lithium metal/lithium sulfide composite material, to a method for producing a Li2S@C-coated lithium metal product, and to the use of said lithium metal product. The particulate lithium metal/lithium sulfide composite material has a core-shell morphology, the shell of which is made of a lithium sulfide containing C and the core of which is made of metal lithium. According to the method, the particulate lithium metal/lithium sulfide composite material is produced by reacting melted, drop-shaped lithium metal in a hydrocarbon solvent with a sulfur source selected from the group CS2, S8, H2S, COS, SO, SO2 or mixtures thereof. The method products according to the invention are used to produce lithium battery electrodes.
    Type: Application
    Filed: November 9, 2012
    Publication date: October 30, 2014
    Inventors: Ulrich Wietelmann, Ute Emmel, Christoph Hartnig, Sebastian Lang
  • Publication number: 20140315039
    Abstract: A method for finely powdering tungsten powder, which includes dispersing tungsten powder in an aqueous solution containing an oxidizing agent to form an oxide film in the surface of the tungsten powder and removing the oxide film with an alkaline aqueous solution. Also disclosed is a method for producing fine tungsten powder, which includes obtaining tungsten powder having an average particle size of 0.05 to 0.5 ?m by a process including the above method for finely powdering. Also disclosed is a tungsten powder having an average particle size of 0.05 to 0.5 ?m, in which the dMS value (product of an average particle size d (?m), true density M (g/cm3) and BET specific surface area S (m2/g)) is within the range of 6±0.8.
    Type: Application
    Filed: August 29, 2012
    Publication date: October 23, 2014
    Applicant: SHOWA DENKO K.K.
    Inventors: Kazumi Naito, Shoji Yabe
  • Publication number: 20140308537
    Abstract: The present application provides a method for fabricating hollow metal nano particles and hollow metal nano particles fabricated by the same.
    Type: Application
    Filed: May 10, 2013
    Publication date: October 16, 2014
    Inventors: Jun Yeon Cho, Sang Hoon Kim, Gyo Hyun Hwang, Kwanghyun Kim
  • Publication number: 20140306167
    Abstract: The present invention provides a method for producing silver powder having a low content of chlorine, and provides a conductive paste containing the obtained silver powder. In the case where silver powder is obtained in such a manner that a solution containing a silver complex obtained by dissolving silver chloride with a complexing agent is mixed with a reducing agent solution to reduce the silver complex, an organic compound having a hydrophilic group which is positively charged when ionized in water is added to both the solution containing the silver complex and the reducing agent solution, or added to either the solution containing the silver complex or the reducing agent solution, whereby adsorption of the organic compound onto the surfaces of silver particles precedes adsorption of chlorine thereonto, and thus adsorption of chlorine onto silver particles is controlled.
    Type: Application
    Filed: November 15, 2012
    Publication date: October 16, 2014
    Inventors: Toshiaki Terao, Eiji Ishida
  • Publication number: 20140284524
    Abstract: A catalyst for reforming hydrocarbons may include a nickel nanoparticle having a controlled crystal facet, the controlled crystal facet being a surface of the nickel nanoparticle and including a {100} face, a {111} face, or a combination thereof. The present disclosure also relates to a production method thereof and a method of reforming hydrocarbons using the same.
    Type: Application
    Filed: March 24, 2014
    Publication date: September 25, 2014
    Applicants: Yonsei University, University - Industry Foundation (UIF), Samsung Electronics Co., Ltd.
    Inventors: Seung Jae LEE, In Hyuk SON, Hyunjoo LEE, Chanyeon KIM
  • Publication number: 20140251087
    Abstract: 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.
    Type: Application
    Filed: March 10, 2014
    Publication date: September 11, 2014
    Inventors: Sheng Peng, Arjun Srinivas, Tom Credelle
  • Publication number: 20140238196
    Abstract: 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.
    Type: Application
    Filed: June 22, 2012
    Publication date: August 28, 2014
    Applicant: WILLIAM MARSH RICE UNIVERSITY
    Inventor: Joseph Young
  • Publication number: 20140234439
    Abstract: This invention relates to bio synthesis of novel nano gold through environment friendly process with the aid of plant materials classified under the taxonomical genus Dalbergia, Citrus, Ferula and Dolichos or Macrotyloma. The present inventive product novel nano gold finds utility in, the treatment of humans and animals, nutraceutical, cosmeceutical and herbal composition, the field of technology including but not limited to nano technology, green technology and bio technology. The invention also relates to the use of plant materials in the purification and particle size reduction of metals.
    Type: Application
    Filed: January 10, 2014
    Publication date: August 21, 2014
    Inventors: Yogesh N. Bendale, Vineeta Yogesh Bendale
  • Patent number: 8802151
    Abstract: The instant invention relates to shaped transition metal particles, in particular in the form of a dispersion in an aqueous and/or organic medium, the manufacture thereof and their use as an infrared (IR) absorbing agent, an IR curing agent for coatings, an additive in conductive formulations, an antimicrobial agent or for sensoring organic and/or inorganic compounds. Further, the invention relates to dispersions comprising said shaped particles and an aqueous and/or organic medium, such as a thermoplastic or crosslinkable polymer, as well as to antimicrobial compositions and products.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: August 12, 2014
    Assignee: BASF SE
    Inventors: Nikolay A. Grigorenko, Michael Muehlebach, Florian Muehlebach
  • Publication number: 20140196772
    Abstract: The process for making silver powder particles with small size crystallites uses a combination of gum arabic and maleic acid with the reduction of a silver salt with ascorbic acid, Silver thick film paste containing these silver powder particles can be used in electronic applications to form electrodes for semiconductor devices and, in particular, solar cells.
    Type: Application
    Filed: March 18, 2014
    Publication date: July 17, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: ROBERTO IRIZARRY-RIVERA, Haixin Yang
  • Publication number: 20140199204
    Abstract: There are provided a cuprous oxide powder having a smaller particle diameter than that of conventional cuprous oxide powders, and a method for producing the cuprous oxide powder by a chemical reducing process. In a method for producing a cuprous oxide powder by adding a reducing agent, such as a reducing sugar, to a solution containing copper hydroxide, which is formed by adding one of an alkali solution and a copper ion containing solution to the other thereof, to deposit cuprous oxide particles by reduction, 0.00001 to 0.04 moles (10 to 40000 ppm) of ferrous ions with respect to the amount of copper ions in the copper ion containing solution are added to the copper ion containing solution before forming copper hydroxide, to produce a cuprous oxide powder which has a mean primary particle diameter of not greater than 0.5 micrometers when it is measured by a scanning electron microscope (SEM), the cuprous oxide powder having a 50% particle diameter (D50 diameter) of not greater than 0.
    Type: Application
    Filed: September 13, 2012
    Publication date: July 17, 2014
    Applicant: DOWA ELECTRONICS MATERIALS CO., LTD.
    Inventors: Yuki Kaneshiro, Shinichi Suenaga, Akihiro Asano
  • Patent number: 8764877
    Abstract: 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.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: July 1, 2014
    Assignees: JX Nippon Mining & Metals Corporation, Japan New Metals Co., Ltd.
    Inventors: Jin Sato, Kouichi Takemoto, Takeshi Sasaki, Mikio Ohno, Junji Ogura
  • Patent number: 8764878
    Abstract: Claimed methods do not rely on highly reactive reagents, highly corrosive solutions, high temperatures, or long reaction times. Nanowires produced from such methods are free of large attached nanoparticles that have accompanied previously disclosed copper nanowires. Such nanowires are useful for electronics applications.
    Type: Grant
    Filed: February 12, 2013
    Date of Patent: July 1, 2014
    Inventor: David R. Whitcomb
  • Publication number: 20140155247
    Abstract: At least two types of fluids to be processed are mixed in a thin film fluid formed between at least two processing surfaces which are approachably and separably disposed facing each other. At least one processing surface rotates relative to the other, and a substance to be separated giving a controlled crystallite diameter is caused to separate. Specific conditions related to a fluid to be processed are varied to control the crystallite diameter of the substance to be separated. The specific conditions are the type of substance to be separated; the concentration of the substance to be separated included in the raw material fluid and/or substance included in the separating fluid; the pH of the raw material fluid and/or separating material fluid; the introduction temperature of the raw material fluid and/or separating fluid; and the introduction velocity of the raw material fluid and/or separating fluid.
    Type: Application
    Filed: July 5, 2012
    Publication date: June 5, 2014
    Applicant: M. TECHNIQUE CO., LTD.
    Inventors: Shiho Aoyagi, Kaeko Araki, Masaki Maekawa, Jun Kuraki, Masakazu Enomura