Of Silver Patents (Class 502/347)
  • Patent number: 10311990
    Abstract: A photosensitive reducible silver ion-containing composition can be used to provide electrically-conductive silver metal in thin film or patterns on a substrate after irradiation with UV-visible light. The composition comprises: a) a non-hydroxylic-solvent soluble silver complex represented by the following formula (I): wherein L represents an ?-oxy carboxylate; P represents a primary alkylamine; a is 1 or 2; b is 1 or 2; and c is 1, 2, 3, or 4, provided that when a is b, b is 1, and when a is 2, b is 2; b) optionally, a photosensitizer that can either reduce the reducible silver ion or oxidize the ?-oxy carboxylate; and c) a solvent medium comprising at least one non-hydroxylic solvent.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: June 4, 2019
    Assignee: EASTMAN KODAK COMPANY
    Inventor: Deepak Shukla
  • Patent number: 10071426
    Abstract: Objects of the invention are to provide a method in which coated metal fine particles are smoothly manufactured when the coated metal fine particles are manufactured using a metal amine complex decomposition method, and, particularly, to provide coated metal fine particles that can be smoothly sintered even at a low temperature. The manufacturing method of coated metal fine particles includes a first step of mixing an amine liquid mixture of an alylamine having 6 or more carbon atoms and an alkylamine having 5 or less carbon atoms with a metal compound including one or more metal atoms, thereby generating a complex compound including the metal compound and amines; and a second step of heating and decomposing the complex compound, thereby generating coated metal fine particles.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: September 11, 2018
    Assignee: Yamagata University
    Inventors: Masato Kurihara, Masatomi Sakamoto
  • Patent number: 10046311
    Abstract: The present disclosure generally relates to a silver-based epoxidation catalyst. In certain embodiments, a method is provided for modulating the reactivity of the silver-based epoxidation catalyst, comprising the catalyst being post-treated with at least two different salt solutions. In some embodiments, the treatment results in the deposition of one or more metals onto the surface of the catalyst. In further embodiments, method is also provided of using the silver catalyst to generate an epoxide from an olefin.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: August 14, 2018
    Assignee: Lyondell Chemical Technology, L.P.
    Inventors: Sandor Nagy, Barbara Kimmich
  • Patent number: 10040773
    Abstract: A silver-based ethylene epoxidation catalyst is provided that exhibits improved performance, i.e., selectivity and activity decline. The catalyst that exhibits the improved performance includes greater than about 20% by weight of silver disposed on an alpha-alumina carrier, and a promoting amount of one or more promoters disposed on the alpha-alumina carrier. The silver is present on the alpha-alumina carrier as silver particles having a diameter of greater than about 150 nm and a distribution density of about 20 particles per 1 square micron or less.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: August 7, 2018
    Assignee: Scientific Design Company, Inc.
    Inventors: Wojciech L. Suchanek, Nabil Rizkalla, Andrzej Rokicki
  • Patent number: 9975865
    Abstract: A method for producing ethylene oxide comprising: a) providing one or more feed components, wherein the one or more feed components contains at least ethylene obtained by dehydrating ethanol; b) contacting the one or more feed components with an ethylene oxide catalyst bed disposed in a reactor tube, the ethylene oxide catalyst bed comprising: (1) an upstream ethylene oxide catalyst having a first cesium concentration and (2) a downstream ethylene oxide catalyst having a second cesium concentration, wherein the first cesium concentration is higher than the second cesium concentration.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: May 22, 2018
    Assignee: Scientific Design Company, Inc.
    Inventor: Ashok S. Padia
  • Patent number: 9586199
    Abstract: A composition that comprises a support material that is loaded with an active metal or metal precursor, an amine component, and a non-amine containing polar additive. The composition is useful in the hydroprocessing of hydrocarbon feedstocks. The composition is prepared by incorporating a metal solution into a support material followed by incorporating therein an amine component and a non-amine containing polar additive.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: March 7, 2017
    Assignee: SHELL OIL COMPANY
    Inventors: Alexei Grigorievich Gabrielov, William Douglas Gillespie
  • Publication number: 20150148220
    Abstract: Process for manufacturing ZPGM catalysts systems that may allow the prevention of formation or the conversion of corrosion causing compounds, such as hexavalent chromium compounds, within ZPGM catalyst systems is disclosed. In one embodiment, disclosed ZPGM catalysts systems, may include metallic substrate, which may include alloys of iron and chromium, a washcoat and an overcoat. Disclosed manufacturing process may include a thermal decomposition of hexavalent chromium compounds which may allow the decomposition of such compounds into trivalent chromium compounds, and may also produce metallic catalyst, such as silver. Such conversion may prevent corrosion formation, such as red color corrosion within ZPGM catalyst system. An embodiment of the disclosed process may include a reducing agent, which may be present in exhaust conditions, which may convert hexavalent chromium compounds into trivalent chromium compounds as well as produce metallic catalyst, such as silver.
    Type: Application
    Filed: January 28, 2015
    Publication date: May 28, 2015
    Applicant: CDTi
    Inventor: Zahra Nazarpoor
  • Patent number: 9029286
    Abstract: A method of making a metal oxide nanoparticle comprising contacting an aqueous solution of a metal salt with an oxidant. The method is safe, environmentally benign, and uses readily available precursors. The size of the nanoparticles, which can be as small as 1 nm or smaller, can be controlled by selecting appropriate conditions. The method is compatible with biologically derived scaffolds, such as virus particles chosen to bind a desired material. The resulting nanoparticles can be porous and provide advantageous properties as a catalyst.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: May 12, 2015
    Assignee: Massachusettes Institute of Technology
    Inventors: Brian Neltner, Angela M. Belcher
  • Publication number: 20150118599
    Abstract: A method of fabricating composite filaments is provided. An initial composite filament including a core and a cladding (such as a Pt-group metal) is cut into smaller pieces (or is first mechanically reduced and then cut into smaller pieces). The smaller pieces of the filaments are inserted into a metal matrix, and the entire structure is then further reduced mechanically in a series of reduction steps. The process can be repeated until the desired cross sectional dimension of the filaments is achieved. The matrix can then be chemically removed to isolate the final composite filaments with the cladding thickness down to the nanometer range. The process allows the organization and integration of filaments of different sizes, compositions, and functionalities into arrays suitable for various applications.
    Type: Application
    Filed: February 24, 2014
    Publication date: April 30, 2015
    Inventor: Joze Bevk
  • Publication number: 20150111725
    Abstract: Novel photocatalytic devices are disclosed, that utilize ultrathin titania based photocatalytic materials formed on optical elements with high transmissivity, high reflectivity or scattering characteristics, or on high surface area or high porosity open cell materials. The disclosure includes methods to fabricate such devices, including MOCVD and ALD. The disclosure also includes photocatalytic systems that are either standalone or combined with general illumination (lighting) utility, and which may incorporate passive fluid exchange, user configurable photocatalytic optical elements, photocatalytic illumination achieved either by the general illumination light source, dedicated blue or UV light sources, or combinations thereof, and operating methodologies for combined photocatalytic and lighting systems.
    Type: Application
    Filed: October 21, 2014
    Publication date: April 23, 2015
    Inventors: Peter C. Van Buskirk, Jeffrey F. Roeder
  • Patent number: 9012351
    Abstract: A method for continuously preparing a metal oxides catalyst comprises the following steps: dissolving metal materials using nitric acid solution to produce a metal nitrate solution, and also to produce NOx and water vapor; hydrolyzing the metal nitrate solution by introducing pressurized superheated water vapor into the metal nitrate solution to obtain a slurry of the hydrates of metal oxides as well as acidic gas, the main components of the acidic gas are NO2, NO, O2 and water vapor; filtrating and drying the slurry to obtain the hydrates of metal oxides and/or metal oxides; and then utilizing the obtained hydrates of metal oxides and/or metal oxides as raw materials and preparing the metal oxides catalyst by the conventional method for preparing a catalyst. The NOx gas produced can be absorbed to produce nitric acid which can be reused.
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: April 21, 2015
    Assignee: SynFuels China Technology Co., Ltd.
    Inventors: Yong Yang, Baoshan Wu, Jian Xu, Hongwei Xiang, Yongwang Li
  • Publication number: 20150099621
    Abstract: Provided is a photocatalyst including: a porous metal oxide film; and metal particles formed on a surface of the porous metal oxide film.
    Type: Application
    Filed: December 27, 2012
    Publication date: April 9, 2015
    Inventors: Dong Il Lee, Seong Moon Jung, Joo-Hwan Seo, Ju-Hyung Lee
  • Patent number: 8999882
    Abstract: A process for treating a carrier, or a precursor thereof, to at least partly remove impurities from the carrier, or the precursor thereof, comprising: contacting the carrier, or the precursor thereof, with a treatment solution comprising a salt in a concentration of at most 0.05 molar, wherein the salt comprises a cation and an anion, and wherein the cation is selected from ammonium, phosphonium, organic cations and combinations thereof, and wherein the anion is selected from organic anions, inorganic carboxylates, oxyanions of elements from Groups IIIA through VIIA of the Periodic Table of Elements, and combinations thereof; and separating at least part of the treatment solution from the carrier, or the precursor thereof.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: April 7, 2015
    Assignee: Shell Oil Company
    Inventors: John Robert Lockemeyer, Randall Clayton Yeates
  • Patent number: 8999887
    Abstract: A carrier having at least three lobes, a first end, a second end, a wall between the ends and a non-uniform radius of transition at the intersection of an end and the wall is disclosed. A catalyst comprising the carrier, silver and promoters deposited on the carrier and useful for the epoxidation of olefins is also disclosed. A method for making the carrier, a method for making the catalyst and a process for epoxidation of an olefin with the catalyst are also disclosed.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: April 7, 2015
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: Michael A. Richard, John David Covey
  • Publication number: 20150086906
    Abstract: A catalyst including: a plurality of porous clusters of silver particles, each cluster of the clusters including: (a) a plurality of primary particles of silver, and (b) crystalline particles of zirconium oxide (ZrO2), wherein at least a portion of the crystalline particles of ZrO2 is located in pores formed by a surface of the plurality of primary particles of silver.
    Type: Application
    Filed: December 1, 2014
    Publication date: March 26, 2015
    Inventors: Ernst Khasin, Arie Zaban
  • Publication number: 20150057150
    Abstract: A process for the preparation of a catalyst useful for the vapor phase production of ethylene oxide from ethylene and oxygen comprising providing a catalyst precursor comprising an inert support having a catalytically effective amount of a silver containing compound, a promoting amount of an alkali metal containing compound, and a promoting amount of a transition metal containing compound disposed thereon; calcining the catalyst precursor to convert the silver in the silver containing compound to metallic silver by heating the catalyst precursor to form a catalyst; and curing the catalyst in an inert gas atmosphere at temperatures of about 250° C. to about 600° C. for a period of about 1 hour to 200 hours.
    Type: Application
    Filed: November 10, 2014
    Publication date: February 26, 2015
    Applicant: SCIENTIFIC DESIGN COMPANY, INC.
    Inventors: Nabil Rizkalla, Andrzej Rokicki
  • Publication number: 20150050494
    Abstract: A multi-walled titanium-based nanotube array containing metal or non-metal dopants is formed, in which the dopants are in the form of ions, compounds, clusters and particles located on at least one of a surface, inter-wall space and core of the nanotube. The structure can include multiple dopants, in the form of metal or non-metal ions, compounds, clusters or particles. The dopants can be located on one or more of on the surface of the nanotube, the inter-wall space (interlayer) of the nanotube and the core of the nanotube. The nanotubes may be formed by providing a titanium precursor, converting the titanium precursor into titanium-based layered materials to form titanium-based nanosheets, and transforming the titanium-based nanosheets to multi-walled titanium-based nanotubes.
    Type: Application
    Filed: March 19, 2013
    Publication date: February 19, 2015
    Applicant: The Hong Kong University of Science and Technology
    Inventors: King Lun Yeung, Shammi Akter Ferdousi, Wei Han
  • Publication number: 20150024930
    Abstract: Present disclosure provides a process for the synthesis of visible light responsive doped titania photocatalysts. The process involves step a) milling a mixture containing titania and a precursor compound, the compound selected from the group consisting of chloroauric acid and a mixture containing chloroauric acid and silver nitrate, in the presence of water and oxide milling media, at a temperature in the range of 20 to 50° C. for a period of 60-120 minutes, to form a slurry, wherein the amount of water is in the range of 15 to 25% by weight of the total mixture; and b) filtering the slurry to separate the oxide milling media and obtain a filtrate containing doped titania nanoparticles.
    Type: Application
    Filed: July 18, 2014
    Publication date: January 22, 2015
    Applicant: TATA CONSULTANCY SERVICES LTD
    Inventors: Auhin Kumar MAPARU, Beena RAI
  • Patent number: 8921587
    Abstract: The present invention relates to a shaped catalyst body for preparing ethylene oxide, which comprises at least silver and rhenium applied to an alumina support, and also to a process for producing it, wherein the alumina support has the geometry of a hollow cylinder and the shaped catalyst body has a rhenium content CR and CR/ppm by weight, based on the wall thickness of the hollow cylinder dW in mm, and calculated as element, in the range 120?CR/dW?200.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: December 30, 2014
    Assignee: BASF SE
    Inventors: Tobias Rosendahl, Torsten Mäurer, Cornelia Katharina Dobner
  • Publication number: 20140370422
    Abstract: We disclose novel metallic nanoparticles coated with a thin protective carbon shell, and three-dimensional nano-metallic sponges; methods of preparation of the nanoparticles; and uses for these novel materials, including wood preservation, strengthening of polymer and fiber/polymer building materials, and catalysis.
    Type: Application
    Filed: September 3, 2014
    Publication date: December 18, 2014
    Applicant: Board of Supervisors of Louisiana State University and Agricultural and Mechanical College
    Inventors: Kun Lian, Qinglin Wu
  • Patent number: 8911698
    Abstract: A supported catalyst for reduction reaction of nitrogen oxides includes a support and an silver (Ag)-based compound and aluminum fluoride which are immobilized in the support. A method for preparing the supported catalyst for reduction reaction of nitrogen oxides includes an impregnation step wherein aluminum fluoride, a hydrate or a salt thereof, and a silver (Ag)-based compound or a hydrate thereof are reacted with a support and a step of calcining the support. Nitrogen oxides in exhaust gas are removed by reacting with a reducing agent, in the presence of the supported catalyst for reduction reaction of nitrogen oxides. Wherein, the supported catalyst has an excellent nitrogen oxide removal efficiency at a practical exhaustion temperature of 270 to 400° C.
    Type: Grant
    Filed: November 11, 2013
    Date of Patent: December 16, 2014
    Assignees: Hyundai Motor Company, Postech Academy-Industry Foundation
    Inventors: Jin Woo Choung, In-Sik Nam, Mun Kyu Kim, Pyung Soon Kim, Byong-Kwon Cho
  • Publication number: 20140343306
    Abstract: A method for lowering the sodium content of different carriers which may have different physical properties as well as varying degrees of sodium is provided. The method, which lowers the sodium content from the surface, subsurface as well as the binding layer of the carrier, includes contacting a carrier with water. A rinse solution is recovered from the contacting. The rinse solution includes leached sodium from the carrier. The sodium content in the rinse solution is then determined. The contacting, recovering and determining are repeated until a steady state in the sodium content is achieved.
    Type: Application
    Filed: May 16, 2014
    Publication date: November 20, 2014
    Applicant: SCIENTIFIC DESIGN COMPANY, INC.
    Inventors: Nabil Rizkalla, Andrzej Rokicki
  • Publication number: 20140343308
    Abstract: A silver-based ethylene oxide catalyst that can be used in the vapor phase conversion of ethylene to ethylene oxide in the presence of oxygen is provided that includes a carrier; a catalytic effective amount of silver; and a promoting amount of at least one promoter, wherein the catalyst has a surface sodium content of 100 ppm or less.
    Type: Application
    Filed: May 16, 2014
    Publication date: November 20, 2014
    Applicant: Scientific Design Company, Inc.
    Inventors: Nabil Rizkalla, Andrzej Rokicki
  • Patent number: 8889078
    Abstract: A porous oxide catalyst includes porous oxide, and an oxygen vacancy-inducing metal which induces an oxygen vacancy in a lattice structure of a porous metal oxide.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: November 18, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-min Ji, Hyun-chul Lee, Doo-hwan Lee, Seon-ah Jin
  • Patent number: 8883678
    Abstract: An improved carrier for an ethylene epoxidation catalyst is provided. The carrier includes an alumina component containing a first portion of alumina particles having a mean primary particle size of, or greater than, 2 ?m and up to 6 ?m, and a second portion of alumina particles having a particle size less than 2 ?m. An improved catalyst containing the above-described carrier, as well as an improved process for the epoxidation of ethylene using the catalyst are also provided.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: November 11, 2014
    Assignees: Scientific Design Company, Inc., Noritake Co., Limited
    Inventors: Serguei Pak, Andrzej Rokicki, Shuji Kawabata, Takayuki Ohashi
  • Patent number: 8883675
    Abstract: A process for the preparation of a catalyst useful for the vapor phase production of ethylene oxide from ethylene and oxygen comprising providing a catalyst precursor comprising an inert support having a catalytically effective amount of a silver containing compound, a promoting amount of an alkali metal containing compound, and a promoting amount of a transition metal containing compound disposed thereon; calcining the catalyst precursor to convert the silver in the silver containing compound to metallic silver by heating the catalyst precursor to form a catalyst; and curing the catalyst in an inert gas atmosphere at temperatures of about 250° C. to about 600° C. for a period of about 1 hour to 200 hours.
    Type: Grant
    Filed: May 17, 2011
    Date of Patent: November 11, 2014
    Assignee: Scientific Design Company, Inc.
    Inventors: Nabil Rizkalla, Andrzej Rokicki
  • Publication number: 20140323295
    Abstract: Methods of preparing a second high-efficiency, rhenium-promoted silver catalyst for producing alkylene oxide from an alkylene based on a first catalyst are disclosed and described. In accordance with the disclosed methods, the first and second catalysts include at least one promoter that includes a rhenium promoter. The target catalyst concentrations of one or more promoters of the at least one promoter on the second catalyst are determined based on the values of a catalyst reference property for the two catalysts and the concentration of the one or more promoters of the at least one promoter on the first catalyst. Suitable catalyst reference properties include carrier specific surface area and silver specific surface area. Reaction systems utilizing the first and second catalysts are also described.
    Type: Application
    Filed: November 30, 2012
    Publication date: October 30, 2014
    Inventors: Hirokazu Shibata, Arun G. Basrur, Srikant Gopal, Mark H. McAdon, Albert Cheng-Yu Liu, Liping Zhang, Ernest R. Frank
  • Patent number: 8871669
    Abstract: A catalyst composition is provided comprising a homogeneous solid mixture having ordered directionally aligned tubular meso-channel pores having an average diameter in a range of about 1 nanometer to about 15 nanometers, wherein the homogeneous solid mixture is prepared from a gel formed in the presence of a solvent, modifier, an inorganic salt precursor of a catalytic metal, an inorganic precursor of a metal inorganic network, and a templating agent. The templating agent comprises an octylphenol ethoxylate having a structure [I]: wherein “n” is an integer having a value of about 8 to 20.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: October 28, 2014
    Assignee: General Electric Company
    Inventors: Larry Neil Lewis, Oltea Puica Siclovan, Dan Hancu, Ashish Balkrishna Mhadeshwar, Ming Yin
  • Patent number: 8871677
    Abstract: A carrier having at least three lobes, a first end, a second end, a wall between the ends and a non-uniform radius of transition at the intersection of an end and the wall is disclosed. A catalyst comprising the carrier, silver and promoters deposited on the carrier and useful for the epoxidation of olefins is also disclosed. A method for making the carrier, a method for making the catalyst and a process for epoxidation of an olefin with the catalyst are also disclosed.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: October 28, 2014
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: Michael A. Richard, John David Covey
  • Patent number: 8858903
    Abstract: Oxidation ZPGM catalyst systems and three way ZPGM catalyst systems are disclosed. ZPGM catalyst systems may oxidize toxic gases, such as carbon monoxide and hydrocarbons, optionally some ZPGM catalyst systems may as well reduce nitrogen oxides that may be included in exhaust gases. ZPGM catalyst systems may include: a substrate, a washcoat, and an overcoat. The washcoat may include at least one ZPGM catalyst and carrier material oxides. Similarly, overcoat may include at least one ZPGM catalyst, carrier material oxides and OSMs. Suitable known in the art chemical techniques, deposition methods and treatment systems may be employed in order to form the disclosed ZPGM catalyst systems.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: October 14, 2014
    Assignee: Clean Diesel Technology Inc
    Inventor: Zahra Nazarpoor
  • Publication number: 20140294710
    Abstract: A method of preparing a catalyst composition suitable for removing sulfur from a catalytic reduction system and the catalyst composition prepared by the method are provided. The method of preparation of a catalyst composition, comprises: combining a metal oxide precursor, a catalyst metal precursor and an alkali metal precursor in the presence of a templating agent; hydrolyzing and condensing to form an intermediate product that comprises metal oxide, alkali metal oxide, and catalyst metal; and calcining to form a templated amorphous metal oxide substrate having a plurality of pores wherein the alkali metal oxide and catalyst metal are dispersed in an intermixed form in the metal oxide substrate.
    Type: Application
    Filed: June 16, 2014
    Publication date: October 2, 2014
    Applicant: General Electric Company
    Inventors: Oltea Puica Siclovan, Daniel George Norton, Larry Neil Lewis, Dan Hancu, Xiaoying Bao, Robert Burch, Hardacre Christopher, Chansai Sarayute
  • Publication number: 20140296060
    Abstract: The invention provides a photocatalytic structure comprising a carrier and a photocatalytic film formed on the carrier, in which the photocatalytic film comprises titanium dioxide with shape of rhombus particles. The titanium dioxide particle has anatase structure. The titanium dioxide particle is rhombus with a major axis 10-15 nm and minor axis 3-6 nm. The photocatalytic film which is formed by titanium dioxide with shape of rhombus particles has a high overall photocatalytic activity so that the effects of stainproofing and self-cleaning can be improved. The invention also relates to a method for manufacturing photocatalytic sol-gels.
    Type: Application
    Filed: March 28, 2014
    Publication date: October 2, 2014
    Applicant: JM MATERIAL TECHNOLOGY INC.
    Inventor: Yu-Wen CHEN
  • Patent number: 8840769
    Abstract: A catalyst precursor resin composition includes an organic polymer resin; a fluorinated-organic complex of silver ion; a monomer having multifunctional ethylene-unsaturated bonds; a photoinitiator; and an organic solvent. The metallic pattern is formed by forming catalyst pattern on a base using the catalyst precursor resin composition reducing the formed catalyst pattern, and electroless plating the reduced catalyst pattern. In the case of forming metallic pattern using the catalyst precursor resin composition, a compatibility of catalyst is good enough not to make precipitation, chemical resistance and adhesive force of the formed catalyst layer are good, catalyst loss is reduced during wet process such as development or plating process, depositing speed is improved, and thus a metallic pattern having good homogeneous and micro pattern property may be formed after electroless plating.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: September 23, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Min Kyoun Kim, Min Jin Ko, Sang Chul Lee, Jeong Im Roh
  • Patent number: 8835345
    Abstract: There is provided a catalyst comprising metal nanoparticles supported on nanocrystalline cellulose and a homogeneous catalyst system comprising this catalyst colloidally suspended in a fluid. There is also provided a method of producing this catalyst and various uses thereof.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: September 16, 2014
    Assignee: The Royal Institution for the Advancement of Learning/McGill University
    Inventors: Audrey Moores, Ciprian M. Cirtiu
  • Publication number: 20140256540
    Abstract: Photocatalytic materials are described herein which include thin nanostructures. For example, the catalytic material can include a nanostructure that has a thin structure of a photocatalytic composition, wherein the thin structure is defined by a first surface and a second surface on opposite sides of the thin structure of the photocatalytic composition. The photocatalytic composition may include an inorganic compound, such as a titanium and/or stannous oxide. The first surface and a second surface may be relatively large as compared to the thickness of the thin structure, or the thickness of the nanostructure.
    Type: Application
    Filed: September 6, 2013
    Publication date: September 11, 2014
    Applicant: Nitto Denko Corporation
    Inventors: Ekambaram Sambandan, Rajesh Mukherjee, Takuya Fukumura, Amane Mochizuki
  • Publication number: 20140248544
    Abstract: This disclosure relates generally to cathode materials for electrochemical energy cells, more particularly to metal/air electrochemical energy cell cathode materials containing silver vanadium oxide and methods of making and using the same. The metal/air electrochemical energy cell can be a lithium/air electrochemical energy cell. Moreover the silver vanadium oxide can be a catalyst for one or more of oxidation and reduction processes of the electrochemical energy cell.
    Type: Application
    Filed: February 7, 2014
    Publication date: September 4, 2014
    Inventors: Weibing Xing, Joshua Buettner-Garrett
  • Patent number: 8815769
    Abstract: A process for conditioning a high efficiency silver catalyst used to manufacture ethylene oxide from ethylene, oxygen, and at least one organic chloride is described. A non-reactive conditioning gas comprising at least one of ethylene, oxygen, and a ballast gas is introduced to the catalyst at a conditioning temperature ranging from 150° C. to 180° C. for a selected period of at least 4 hours.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: August 26, 2014
    Assignee: Dow Technology Investments LLC
    Inventors: Liping Zhang, Ravindra Radhakisan Tupe, Ailene Gardner Phillips, Paul Victor Hinman, Hwaili Soo
  • Patent number: 8815272
    Abstract: An environment-friendly porous bead-satellite nanoparticles composite which has excellent recovery and repeated usage performance and can be used as a catalyst, an antiviral agent, or an antimicrobial, and a fabrication method thereof are provided. The porous bead-satellite nanoparticles composite includes a porous bead, a molecule having a first end coupled to the surface of the porous bead and including a functional group at a second end, and satellite nanoparticles coupled to the functional group, wherein the porous bead may have a core-shell structure including a cluster core of nanoparticles and a porous bead shell covering the cluster core.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: August 26, 2014
    Assignee: Korea Institute of Science and Technology
    Inventors: Kyoungja Woo, Hye Hun Park, Wooyoung Park
  • Patent number: 8802044
    Abstract: The invention relates to a filtration structure, for filtering a gas coming from a diesel engine, which is laden with gaseous pollutants of the nitrogen oxide NOx type and with solid particles, of the particulate filter type, said filtration structure being characterized in that it includes a catalytic system comprising at least one noble metal or transition metal suitable for reducing the NOx and a support material, in which said support material comprises or is made of a zirconium oxide partially substituted with a trivalent cation M3+ or with a divalent cation M?2+, said zirconium oxide being in a reduced, oxygen-sub-stoichiometric, state.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: August 12, 2014
    Assignees: Saint-Gobain Centre de Recherches et d'Etudes Europeen, Centre National de la Recherche Scientifique
    Inventors: Philippe Vernoux, Abdelkader Hadjar, Agnes Princivalle, Christian Guizard
  • Publication number: 20140212790
    Abstract: The present disclosure provides a catalyst product having particular three-dimensional plate-like shape and comprising catalyst nanoparticles and a method for manufacturing same. The present product may be useful in fuel cells or battery applications. In certain embodiments the present catalysts show good catalytic activity and durability even at low catalyst loads.
    Type: Application
    Filed: August 24, 2012
    Publication date: July 31, 2014
    Inventor: Hai Xiong Ruan
  • Patent number: 8785346
    Abstract: A method for forming a gold-containing catalyst with porous structure according to one embodiment of the present invention includes producing a starting alloy by melting together of gold and at least one less noble metal that is selected from the group consisting of silver, copper, rhodium, palladium, and platinum; and a dealloying step comprising at least partial removal of the less noble metal by dissolving the at least one less noble metal out of the starting alloy. Additional methods and products thereof are also presented.
    Type: Grant
    Filed: June 8, 2009
    Date of Patent: July 22, 2014
    Assignees: Lawrence Livermore National Security, LLC, Universitaet Bremen
    Inventors: Juergen Biener, Alex V. Hamza, Marcus Baeumer, Christian Schulz, Birte Jürgens, Monika M. Biener
  • Publication number: 20140199223
    Abstract: A composition includes a templated metal oxide, at least 3 weight percent of silver, and at least one catalytic metal. A method of making and a method of using are included.
    Type: Application
    Filed: January 21, 2014
    Publication date: July 17, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Ming Yin, Larry Neil Lewis, Dan Hancu, Oltea Puica Siclovan
  • Publication number: 20140199222
    Abstract: A composition includes a templated metal oxide substrate having a plurality of pores and a catalyst material includes silver. The composition under H2 at 30 degrees Celsius, the composition at a wavelength that is in a range of from about 350 nm to about 500 nm has a VIS-UV absorbance intensity that is at least 20 percent less than a standard silver alumina catalyst (Ag STD). The standard alumina is Norton alumina, and which has the same amount of silver by weight.
    Type: Application
    Filed: January 21, 2014
    Publication date: July 17, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Larry Neil Lewis, Dan Hancu, Oltea Puica Siclovan, Ming Yin
  • Publication number: 20140187417
    Abstract: A method for producing a catalyst effective in the oxidative conversion of ethylene to ethylene oxide, the method comprising subjecting a refractory carrier impregnated with a liquid silver-containing solution to a calcination process, wherein the calcination process comprises a solvent removal step in which the silver-impregnated carrier is heated to a base temperature (Tbase) of at least 80° C. and up to about 200° C. to produce a dry carrier impregnated with ionic silver, followed by a silver reduction step in which the dry carrier is gradually heated above the base temperature to a maximum temperature (Tmax) of at least 350° C. and up to about 500° C. and then gradually cooled to the base temperature, wherein the method is conducted such that (Tbase?Tmax)×HW is at least 2000 min.° C. wherein HW is a full width at half maximum of a temperature versus time curve delineated by the silver reduction step.
    Type: Application
    Filed: December 31, 2013
    Publication date: July 3, 2014
    Applicant: SCIENTIFIC DESIGN COMPANY, INC.
    Inventor: Serguei Pak
  • Publication number: 20140186747
    Abstract: A method of fabricating composite filaments is provided. An initial composite filament including a core and a cladding (such as a Pt-group metal) is cut into smaller pieces (or is first mechanically reduced and then cut into smaller pieces). The smaller pieces of the filaments are inserted into a metal matrix, and the entire structure is then further reduced mechanically in a series of reduction steps. The process can be repeated until the desired cross sectional dimension of the filaments is achieved. The matrix can then be chemically removed to isolate the final composite filaments with the cladding thickness down to the nanometer range. The process allows the organization and integration of filaments of different sizes, compositions, and functionalities into arrays suitable for various applications.
    Type: Application
    Filed: February 24, 2014
    Publication date: July 3, 2014
    Applicant: The Trustees of Columbia University in the city of New York
    Inventor: Jose Bevk
  • Patent number: 8765633
    Abstract: A catalyst for the production of ethylene oxide in high efficiency and high selectivity, as well as stably for a long period of time is provided. A catalyst for the production of ethylene oxide comprising silver and a reaction promoter supported on a porous carrier comprising ?-alumina as a main component, characterized in that a relative standard deviation of silver supporting rate of each particle of the catalyst is 0.001 or more and 0.1 or less.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: July 1, 2014
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Hiroyuki Hirota, Hiromi Yunoki, Kenichi Ochiai
  • Publication number: 20140179516
    Abstract: There is provided a catalyst for producing ethylene oxide from ethylene which is composed of at least silver (Ag), cesium (Cs), rhenium (Re) and a carrier, and can be improved, in particular, in selectivity. The present invention relates to a catalyst for producing ethylene oxide from ethylene, comprising at least silver (Ag), cesium (Cs), rhenium (Re) and a carrier, said catalyst being produced by optionally pretreating the carrier to support an alkali metal thereon and then supporting Ag, Cs and Re on the carrier, wherein the carrier has a specific surface area of 0.6 to 3.0 m2/g and a weight ratio of a silicon (Si) content to a sodium (Na) content of 2 to 50 in terms of SiO2/Na2O; a content of Re in the catalyst is 170 to 600 ppm per 1 m2/g of the specific surface area of the carrier on the basis of a weight of the carrier; and a molar ratio of Cs to Re in the catalyst is 0.3 to 19.
    Type: Application
    Filed: February 27, 2014
    Publication date: June 26, 2014
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Katsumi NAKASHIRO, Soichiro Yamada, Takanao Matsumoto
  • Patent number: 8734743
    Abstract: Described is a nitrogen oxide storage catalyst comprising: a substrate; a first washcoat layer provided on the substrate, the first washcoat layer comprising a nitrogen oxide storage material, a second washcoat layer provided on the first washcoat layer, the second washcoat layer comprising a hydrocarbon trap material, wherein the hydrocarbon trap material comprises substantially no element or compound in a state in which it is capable of catalyzing selective catalytic reduction, preferably wherein the hydrocarbon trap material comprises substantially no element or compound in a state in which it is capable of catalyzing a reaction wherein nitrogen oxide is reduced to N2, said catalyst further comprising a nitrogen oxide conversion material which is either comprised in the second washcoat layer and/or in a washcoat layer provided between the first washcoat layer and the second washcoat layer.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: May 27, 2014
    Assignee: BASF SE
    Inventors: Torsten W. Müller-Stach, Susanne Stiebels, Edith Schneider, Torsten Neubauer
  • Publication number: 20140140904
    Abstract: The present invention provides methods and designs of enclosed-channel reactor system for manufacturing catalysts or supports. Both of the configuration designs force the gaseous precursors and purge gas flow through the channel surface of reactor. The precursors will transform to thin film or particle catalysts or supports under adequate reaction temperature, working pressure and gas concentration. The reactor body is either sealed or enclosed for isolation from atmosphere. Another method using super ALD cycles is also proposed to grow alloy catalysts or supports with controllable concentration. The catalysts prepared by the method and system in the present invention are noble metals, such as platinum, palladium, rhodium, ruthenium, iridium and osmium, or transition metals such as iron, silver, cobalt, nickel and tin, while supports are silicon oxide, aluminum oxide, zirconium oxide, cerium oxide or magnesium oxide, or refractory metals, which can be chromium, molybdenum, tungsten or tantalum.
    Type: Application
    Filed: July 23, 2013
    Publication date: May 22, 2014
    Applicant: National Applied Research Laboratories
    Inventors: Chi-Chung Kei, Bo-Heng Liu, Chien-Pao Lin, Chien-Nan Hsiao, Yang-Chih Hsueh, Tsong-Pyng Perng
  • Patent number: 8716175
    Abstract: There is provided a catalyst for producing ethylene oxide from ethylene which is composed of at least silver (Ag), cesium (Cs), rhenium (Re) and a carrier, and can be improved, in particular, in selectivity. The present invention relates to a catalyst for producing ethylene oxide from ethylene, comprising at least silver (Ag), cesium (Cs), rhenium (Re) and a carrier, said catalyst being produced by optionally pretreating the carrier to support an alkali metal thereon and then supporting Ag, Cs and Re on the carrier, wherein the carrier has a specific surface area of 0.6 to 3.0 m2/g and a weight ratio of a silicon (Si) content to a sodium (Na) content of 2 to 50 in terms of SiO2/Na2O; a content of Re in the catalyst is 170 to 600 ppm per 1 m2/g of the specific surface area of the carrier on the basis of a weight of the carrier; and a molar ratio of Cs to Re in the catalyst is 0.3 to 19.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: May 6, 2014
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Katsumi Nakashiro, Soichiro Yamada, Takanao Matsumoto