Binary Compound (e.g., Carbide, Etc.) Patents (Class 423/439)
-
Patent number: 8388921Abstract: A mass of solid aluminum carbide containing product is produced by a process in which a mixture is formed of an aluminum containing material and a carbonaceous material consisting of, containing or yielding carbon. Then the resulting mixture is heated to a temperature sufficient to react carbon of the carbonaceous material with the aluminum of the aluminum containing material to produce solid aluminum carbide. The solid aluminum carbide then is able to be heated with an aluminum compound selected from Al2O3, Al4CO4, AlO, Al2O and mixtures thereof, to produce aluminum metal and carbon monoxide.Type: GrantFiled: May 8, 2009Date of Patent: March 5, 2013Assignee: Thermical IP Pty Ltd.Inventor: Yaghoub Sayad-Yaghoubi
-
Publication number: 20130048906Abstract: An iron-carbon composition including iron chemically bonded to carbon, wherein the iron and the carbon form a single phase material, characterized in that the carbon does not phase separate from the iron when the single phase material is heated to a temperature that melts the iron-carbon composition.Type: ApplicationFiled: August 30, 2012Publication date: February 28, 2013Applicant: THIRD MILLENNIUM METALS, LLCInventors: Jason V. Shugart, Roger C. Scherer
-
Publication number: 20130000209Abstract: Methods of treating a plurality of particles comprise functionalizing a plurality of microscale diamond particles by covalently bonding one or more molecular groups selected from the group consisting of —OH functional groups, —COOH functional groups, —R—COOH functional groups, wherein R comprises alkyls, —Ph—COOH functional groups, wherein Ph comprises phenolics, polymers, oligomers, monomers, glycols, sugars, ionic functional groups, metallic functional groups, and organo-metallic functional groups to outer surfaces of at least some particles of the plurality of microscale diamond particles. A stability of the functionalized plurality of microscale diamond particles in dispersion is increased as compared to a plurality of microscale diamond particles that has not been functionalized.Type: ApplicationFiled: June 30, 2011Publication date: January 3, 2013Applicant: BAKER HUGHES INCORPORATEDInventors: Soma Chakraborty, Gaurav Agrawal
-
Patent number: 8343449Abstract: The disclosure provides a device and method used to produce a tubular structure made of a refractory metal compound. In particular, the disclosure provides a device and method used to produce a tubular structure made of a refractory metal compound by reacting a green tubular structure made of a refractory metal with at least one reactive gas.Type: GrantFiled: June 28, 2011Date of Patent: January 1, 2013Assignee: Nitride Solutions, Inc.Inventor: Jason Schmitt
-
Patent number: 8337799Abstract: The invention relates to a method for producing nanoparticles of at least one oxide of a transition metal selected from Ti, Zr, Hf, V, Nb and Ta, which are coated with amorphous carbon, wherein said method includes the following successive steps: (i) a liquid mixture containing as precursors at least one alkoxyde of the transition metal, an alcohol, and an acetic acid relative to the transition metal is prepared and diluted in water in order to form an aqueous solution, the precursors being present in the solution according to a molar ratio such that it prevents or sufficiently limits the formation of a sol so that the aqueous solution can be freeze-dried, and such that the transition metal, the carbon and the oxygen are present in a stoichiometric ratio according to which they are included in the nanoparticles; (ii) the aqueous solution is freeze-dried; (ii) the freeze-dried product obtained during the preceding step is submitted to pyrolysis under vacuum or in an inert atmosphere in order to obtain the nanoType: GrantFiled: June 6, 2008Date of Patent: December 25, 2012Assignees: Commissariat a l'Energie Atomique-CEA, Ecole Centrale de Paris-ECP, Centre National de la Recherche Scientifique (CNRS)Inventors: Christine Bogicevic, Fabienne Karolak, Gianguido Baldinozzi, Mickael Dollé, Dominique Gosset, David Simeone
-
Publication number: 20120295783Abstract: Methods of converting shaped templates into shaped metal-containing components, allowing for the production of freestanding, porous metal-containing replicas whose shapes and microstructures are derived from a shaped template, and partially or fully converting the shaped templates to produce metal-containing coatings on an underlying shaped template are described herein. Such coatings and replicas can be applied in a variety of fields including, but not limited to, catalysis, energy storage and conversion, and various structural or refractory materials and structural or refractory composite materials.Type: ApplicationFiled: February 1, 2011Publication date: November 22, 2012Applicant: Georgia Tech Research CorporationInventors: David W. Lipke, Kenneth H. Sandhage
-
Publication number: 20120272868Abstract: Graphene particulates, especially graphene nanoribbons (GNRs) and graphene quantum dots Ds and and a high-throughput process for the production of such particulates is provided. The graphene particulates are produced by a nanotomy process in which graphene blocks are cut from a source of graphite and then exfoliated into a plurality of graphene particulates. Graphene particulates having narrow widths, on the order of 100 nm or less, can be produced having band gap properties suitable for use in a variety of electrical applications.Type: ApplicationFiled: November 22, 2010Publication date: November 1, 2012Applicants: THE UNIVERSITY OF KANSAS, KANSAS STATE UNIVERSITY RESEARCH FOUNDATIONInventors: Vikas Berry, Nihar Mohanty, David S. Moore
-
Publication number: 20120256121Abstract: The present invention relates to a process for preparing graphene solutions by means of alkali metal salts, to graphene solutions, to processes for preparing graphene alkali metal salts, to graphene alkali metal salts and to graphene composite materials and to processes for producing the graphene composite materials.Type: ApplicationFiled: November 8, 2010Publication date: October 11, 2012Applicant: BAYER TECHNOLOGY SERVICES GMBHInventors: Aurel Wolf, Giulio Lolli, Leslaw Mleczko, Oliver Felix-Karl Schluter
-
Patent number: 8222171Abstract: A method for the production of a ceramic substrate for a semiconductor component, includes the steps of producing paper containing at least cellulose fibers, as well as a filler to be carbonized and/or SiC, pyrolizing the produced paper, and siliconizing the pyrolyzed paper.Type: GrantFiled: July 13, 2007Date of Patent: July 17, 2012Assignee: Schunk Kohlenstofftechnik GmbHInventors: Marco Ebert, Martin Henrich, Andreas Lauer, Gotthard Nauditt, Thorsten Scheibel, Roland Weiss
-
Publication number: 20120171098Abstract: Ultrafine metal carbide or metal boride particles are consolidated by a method including sintering at intermediate pressures. A green body comprising the ultrafine metal carbide or metal boride particles may be preheated under vacuum and then pressurized to the intermediate sintering pressure. After sintering, the article may be densified at an intermediate temperature below the sintering temperature, and at an elevated pressure above the intermediate sintering temperature. The resultant consolidated metal carbide or metal boride article may then be cooled and used for such applications as armor panels, abrasion resistant nozzles, and the like.Type: ApplicationFiled: January 22, 2008Publication date: July 5, 2012Applicant: PPG INDUSTRIES OHIO, INCInventors: Cheng-Hung Hung, Noel R. Vanier
-
Publication number: 20120134909Abstract: Porous three-dimensional networks of polyimide and porous three-dimensional networks of carbon and methods of their manufacture are described. For example, polyimide aerogels are prepared by mixing a dianhydride and a diisocyanate in a solvent comprising a pyrrolidone and acetonitrile at room temperature to form a sol-gel material and supercritically drying the sol-gel material to form the polyimide aerogel. Porous three-dimensional polyimide networks, such as polyimide aerogels, may also exhibit a fibrous morphology. Having a porous three-dimensional polyimide network undergo an additional step of pyrolysis may result in the three dimensional network being converted to a purely carbon skeleton, yielding a porous three-dimensional carbon network. The carbon network, having been derived from a fibrous polyimide network, may also exhibit a fibrous morphology.Type: ApplicationFiled: August 22, 2011Publication date: May 31, 2012Applicant: Aerogel Technologies, LLCInventors: Nicholas Leventis, Chariklia Sotiriou-Leventis, Chakkaravarthy Chidambareswarapattar
-
Publication number: 20120118868Abstract: The present invention relates to a carbon nanotube-metal particle complex composition prepared by: a) a step of preparing a carbon nanotube solution in which carbon nanotubes are dispersed; b) a step of performing acid treatment on the carbon nanotube solution prepared in operation a); c) a step of neutralizing the carbon nanotube solution prepared in operation b); and d) a step of mixing the carbon nanotube solution prepared in operation c) and a metal solution containing metal particles, in order to bond said metal particles to the surfaces of said carbon nanotubes. The present invention also relates to a heated steering wheel including a carbon nanotube heating coating layer formed from the composition.Type: ApplicationFiled: July 30, 2010Publication date: May 17, 2012Applicant: LG HAUSYS, LTD.Inventors: Tae-Soo Kim, Yong-Bae Jung, Seong-Hoon Yue
-
Patent number: 8178477Abstract: Proppants which can be used to prop open subterranean formation fractions are described. Proppant formulations which use one or more proppants of the present invention are described, as well as methods to prop open subterranean formation fractions, and other uses for the proppants and methods of making the proppants.Type: GrantFiled: September 14, 2011Date of Patent: May 15, 2012Assignee: Oxane Materials, Inc.Inventors: Robert D. Skala, John R. Loscutova, Christopher E. Coker
-
Patent number: 8158094Abstract: The present embodiments relate methods of preparing metal carbides, for example some embodiments relate to methods of preparing metal carbides that do not contain the formation of an intermediate oxide compound. Some embodiments relate to methods that do not employ hydrocarbons in the reaction. Some embodiments relate to a method of preparing metal carbides that involves citrate gel precursors and a non-hydrocarbon gas but does not use a hydrocarbon gas, does not form an oxide intermediate species and does not produce carbon monoxide. In some embodiments, the metal carbides are transition metal carbides.Type: GrantFiled: May 12, 2009Date of Patent: April 17, 2012Assignee: The United States of America, as represented by the Secretary of the NavyInventors: Karen Swider Lyons, Arnold M. Stux
-
Patent number: 8148281Abstract: Disclosed is a highly-pure fine titanium carbide powder having a maximum particle size of 100 nm or less and containing metals except titanium in an amount of 0.05 wt % or less and free carbon in an amount of 0.5 wt % or less. The powder has a NaCl-type crystal structure, and a composition represented by TiCxOyNz, wherein X, Y and Z satisfy the relations: 0.5?X?1.0; 0?Y?0.3; 0?Z?0.2; and 0.5?X+Y+Z?1.0.) The powder is produced by: dissolving an organic substance serving as a carbon source in a solvent to prepare a liquid, wherein the organic substance contains at least one OH or COOH group which is a functional group coordinatable to titanium of titanium alkoxide, and no element except C, H, N and O; mixing titanium alkoxide with the liquid to satisfy the following relation: 0.7???1.Type: GrantFiled: March 3, 2011Date of Patent: April 3, 2012Assignees: Fukuoka Prefecture, Nippon Tungsten Co., Ltd.Inventors: Yoko Taniguchi, Teruhisa Makino, Kunitaka Fujiyoshi, Osamu Nakano, Toru Okui, Yusuke Hara
-
Publication number: 20120077090Abstract: The present invention provides a positive electrode active material for a lithium primary cell. The positive electrode active material can reduce the internal resistance of the positive electrode of a lithium primary cell and can maintain the load characteristics and the discharge voltage not only at high temperatures but also at low temperatures. The positive electrode active material includes a high-temperature treated fluoride produced by treating a fluoride of a carbon material at 200° C. to 400° C.Type: ApplicationFiled: September 27, 2011Publication date: March 29, 2012Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Hideo SAKATA, Meiten KOH, Hitomi NAKAZAWA, Tomoyo SANAGI
-
Publication number: 20120049110Abstract: The present invention relates to a process for producing a carbon-comprising composite, wherein a porous metal-organic framework comprising at least one at least bidentate organic compound coordinated to at least one metal ion is pyrolyzed under a protective gas atmosphere and the at least one at least bidentate organic compound is nitrogen-free. The invention further relates to composites which can be obtained in this way and sulfur electrodes comprising these and also their uses.Type: ApplicationFiled: August 31, 2011Publication date: March 1, 2012Applicant: BASF SEInventors: Natalia Trukhan, Ulrich Müller, Emi Leung, Alexander Panchenko, Nicole Janssen
-
Patent number: 8119094Abstract: There is provided a fluorine storage material comprising a novel fluorinated carbon nanohorn, which stores a large amount of fluorine per its unit mass, withstand repeated use for fluorine storage, and enables a high purity fluorine gas to be taken out by a safe and efficient method, and also there is provided a method of taking out a fluorine gas by applying heat to the fluorine storage material or placing the fluorine storage material in a pressure-reduced atmosphere.Type: GrantFiled: December 26, 2006Date of Patent: February 21, 2012Assignees: Daikin Industries, Ltd., National University Corporation Shinshu University, NEC CorporationInventors: Hidekazu Touhara, Yoshio Nojima, Tomohiro Isogai, Masako Yudasaka, Sumio Iijima
-
Patent number: 8114373Abstract: Disclosed is a method of exfoliating a layered material (e.g., graphite and graphite oxide) to produce nano-scaled platelets having a thickness smaller than 100 nm, typically smaller than 10 nm, and often between 0.34 nm and 1.02 nm. The method comprises: (a) subjecting the layered material in a powder form to a halogen vapor at a first temperature above the melting point or sublimation point of the halogen at a sufficient vapor pressure and for a duration of time sufficient to cause the halogen molecules to penetrate an interlayer space of the layered material, forming a stable halogen-intercalated compound; and (b) heating the halogen-intercalated compound at a second temperature above the boiling point of the halogen, allowing halogen atoms or molecules residing in the interlayer space to exfoliate the layered material to produce the platelets.Type: GrantFiled: January 4, 2011Date of Patent: February 14, 2012Inventors: Bor Z. Jang, Aruna Zhamu
-
Publication number: 20120009110Abstract: A metal-carbon composition including a metal and carbon, wherein the metal and the carbon form a single phase material, characterized in that the carbon does not phase separate from the metal when the single phase material is heated to a melting temperature, the metal being selected from the group consisting of gold, silver, tin, lead, and zinc.Type: ApplicationFiled: February 4, 2011Publication date: January 12, 2012Applicant: THIRD MILLENNIUM METALS, LLCInventors: Jason V. Shugart, Roger C. Scherer
-
Publication number: 20120003136Abstract: The present invention relates to proppants which can be used to prop open subterranean formation fractions. Proppant formulations are further disclosed which use one or more proppants of the present invention. Methods to prop open subterranean formation fractions are further disclosed. In addition, other uses for the proppants of the present invention are further disclosed, as well as methods of making the proppants.Type: ApplicationFiled: September 14, 2011Publication date: January 5, 2012Applicant: OXANE MATERIALS, INC.Inventors: Robert D. Skala, John R. Loscutova, Christopher E. Coker
-
Patent number: 8084009Abstract: A method for making a carbon composite material, the method including providing a 1,4-benzenedicarboxylate-metal complex in a vessel, putting the vessel carrying the 1,4-benzenedicarboxylate-metal complex into an environment with a protective gas therein, and heating the 1,4-benzenedicarboxylate-metal complex to a temperature in a range from about 500° C. to about 1300° C.Type: GrantFiled: July 30, 2009Date of Patent: December 27, 2011Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Ya-Dong Li, Wei Chen, Xiao-Ling Xiao, Chen Chen
-
Publication number: 20110311427Abstract: The present disclosure describes carbon nanotube arrays having carbon nanotubes grown directly on a substrate and methods for making such carbon nanotube arrays. In various embodiments, the carbon nanotubes may be covalently bonded to the substrate by nanotube carbon-substrate covalent bonds. The present carbon nanotube arrays may be grown on substrates that are not typically conducive to carbon nanotube growth by conventional carbon nanotube growth methods. For example, the carbon nanotube arrays of the present disclosure may be grown on carbon substrates including carbon foil, carbon fibers and diamond. Methods for growing carbon nanotubes include a) providing a substrate, b) depositing a catalyst layer on the substrate, c) depositing an insulating layer on the catalyst layer, and d) growing carbon nanotubes on the substrate. Various uses for the carbon nanotube arrays are contemplated herein including, for example, electronic device and polymer composite applications.Type: ApplicationFiled: December 11, 2009Publication date: December 22, 2011Applicant: WILLIAM MARSH RICE UNIVERSITYInventors: Robert H. Hauge, Cary L. Pint, Noe Alvarez, W. Carter Kittrell
-
Publication number: 20110287923Abstract: A ceramic material having a high toughness can include carbon and a transition metal. The transition metal can have an elemental body centered cubic structure at room temperature. A substantial amount of the ceramic can be of a rhombohedral ? phase of the transition metal and carbon. These materials can have a high thermal shock resistance, high fracture toughness, and good high temperature performance. A particulate mixture of a carbon source and a transition metal source can be assembled (12) and reacted (14) under high pressure and high temperature. The transition metal source can include a transition metal of a metal which has an elemental BCC structure at room temperature. The particulate mixture carbon to transition metal ratio is chosen so as to achieve a zeta phase carbide and processing is affected in order to retain the zeta phase at a substantial weight percent of the material (i.e. greater than about 5 wt %).Type: ApplicationFiled: June 23, 2009Publication date: November 24, 2011Applicant: UNIVERSITY OF UTAH RESEARCH FOUNDATIONInventors: Dinesh K. Shetty, Raymond A. Cutler, Kenneth Hackett, Verhoef Shane
-
Publication number: 20110284805Abstract: A method for producing nanospacer-graphene composite materials (i.e., mechanically-exfolitated graphene), wherein the graphene sheets are interspersed with nanospacers, thereby maintaining the 2D characteristics of the graphene sheets. The nanospacer-graphene composite material is highly porous, has a high surface area and is highly electrically conductive and may be optically transparent.Type: ApplicationFiled: June 1, 2011Publication date: November 24, 2011Applicant: THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILLInventors: Edward T. SAMULSKI, Yongchao SI
-
Publication number: 20110256014Abstract: Graphene/metal nanocomposite powder and a method of preparing the same are provided. The graphene/metal nanocomposite powder includes a base metal and graphenes dispersed in the base metal. The graphenes act as a reinforcing material for the base metal. The graphenes are interposed as thin film types between metal particles of the base metal and bonded to the metal particles. The graphenes contained in the base metal have a volume fraction exceeding 0 vol % and less than 30 vol % corresponding to a limit within which a structural change of the graphenes due to a reaction between the graphenes is prevented.Type: ApplicationFiled: April 14, 2011Publication date: October 20, 2011Inventors: Soon Hyung Hong, Jae Won Hwang, Byung Kyu Lim, Sung Hwan Jin
-
Publication number: 20110252739Abstract: The present invention provides several methods and materials for use in building construction that may require air and water barrier, and water vapor permeability along with thermal or acoustic insulation. Several embodiments provide materials for a variety of building construction needs that can help build next generation green buildings.Type: ApplicationFiled: November 12, 2010Publication date: October 20, 2011Applicant: Aspen Aerogels, Inc.Inventors: Daniel L. Leeser, Christopher Blair, Daniel E. Bullock, Sara E. Rosenberg, Poongunran Muthukumaran
-
Publication number: 20110250428Abstract: Three-dimensional nanoporous aerogels and suitable preparation methods are provided. Nanoporous aerogels may include a carbide material such as a silicon carbide, a metal carbide, or a metalloid carbide. Elemental (e.g., metallic or metalloid) aerogels may also be produced. In some embodiments, a cross-linked aerogel having a conformal coating on a sol-gel material is processed to form a carbide aerogel, metal aerogel, or metalloid aerogel. A three-dimensional nanoporous network may include a free radical initiator that reacts with a cross-linking agent to form the cross-linked aerogel. The cross-linked aerogel may be chemically aromatized and chemically carbonized to form a carbon-coated aerogel. The carbon-coated aerogel may be suitably processed to undergo a carbothermal reduction, yielding an aerogel where oxygen is chemically extracted. Residual carbon remaining on the surface of the aerogel may be removed via an appropriate cleaning treatment.Type: ApplicationFiled: February 7, 2011Publication date: October 13, 2011Applicant: Aerogel Technologies, LLCInventors: Nicholas Leventis, Anand G. Sadekar, Naveen Candrasekaran, Chariklia Sotiriou-Leventis
-
Publication number: 20110171096Abstract: Methods of forming one-dimensional carbide nanostructures are provided. In one embodiment, a carbide forming mixture (e.g., including a noncarbon element source, a catalyst, and a solvent) is applied to a porous plant template (e.g., cotton fibers, bamboo fibers, wood fibers, leaf fibers, straw fibers, or mixtures thereof). The porous plant template can then be dried to evaporate the solvent, and heated to a growth temperature of about 1000° C. or more (e.g., about 1050° C. to about 1300° C.) to grow the one-dimensional carbide nanostructures on the porous plant template. One-dimensional carbide nanostructures formed according to the presently disclosed methods are also provided.Type: ApplicationFiled: January 12, 2011Publication date: July 14, 2011Applicant: UNIVERSITY OF SOUTH CAROLINAInventor: Xiaodong Li
-
Publication number: 20110165332Abstract: A mass of solid aluminium carbide containing product is produced by a process in which a mixture is formed of an aluminium containing material and a carbonaceous material consisting of, containing or yielding carbon. Then the resulting mixture is heated to a temperature sufficient to react carbon of the carbonaceous material with the aluminium of the aluminium containing material to produce solid aluminium carbide. The solid aluminium carbide then is able to be heated with an aluminium compound selected from AI2O3, AI4CO4, AIO, AI2O and mixtures thereof, to produce aluminium metal and carbon monoxide.Type: ApplicationFiled: May 8, 2009Publication date: July 7, 2011Inventor: Yaghoub Sayad-Yaghoubi
-
Patent number: 7966745Abstract: Fluid bed granulation process comprising the step of cooling the granules in a cooling fluid bed (F2). At least part of the fluidizing air coming out from said cooling fluid bed (F2) is fed into the granulation fluid bed (F1).Type: GrantFiled: May 19, 2004Date of Patent: June 28, 2011Assignee: Urea Casale S.A.Inventor: Gianfranco Bedetti
-
Patent number: 7959887Abstract: A method for manufacturing a diamond composite, includes: a) mixing diamonds with additives, the mixture comprising at least 50 wt % and less than 95 wt % of diamonds and more than 5 wt % additives; b) forming a work piece from the mixture using a pressure of at least 100 Mpa; c) heating the formed work piece to at least 300° C. for removing possible water and wholly or partially removing additives; d) heating the work piece and controlling the heating temperature and heating time so that a certain desired amount of graphite is created by graphitization of diamonds, wherein the amount of graphite created by graphitization is 3-50 wt % of the amount of diamond; e) infiltrating silicon or silicon alloy into the work piece.Type: GrantFiled: August 6, 2007Date of Patent: June 14, 2011Assignee: Element Six LimitedInventors: Lena Svendsen, Jie Zheng, Fredrik Meurling, Tomas Rostvall
-
Publication number: 20110124790Abstract: The invention relates to a method for preparing aerogels of individualised carbon nanotubes and to the applications thereof, in particular in the production of composite aerogels and electrochemical compounds. The method of the invention is characterised in that it comprises the following steps carried out in an inert atmosphere: (a) reducing the carbon nanotubes using an alkaline metal in order to obtain a polyelectrolyte salt of carbon nanotubes; (b) exposing said polyelectrolyte salt of carbon nanotubes to an aprotic polar solvent in order to obtain a solution of individualised, reduced carbon nanotubes; (c) freezing said solution of individualised nanotubes; and (d) sublimating the solvent. The invention particularly relates to aerogels of individualised carbon nanotubes obtained by said method, and to the uses of said aerogels.Type: ApplicationFiled: November 20, 2008Publication date: May 26, 2011Applicant: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE-CNRSInventor: Alain Pénicaud
-
Publication number: 20110114880Abstract: A method of synthesis of a fulleride of metal nano-cluster is provided. The method is characterised in mechanically alloying metal nano-clusters with fullerene-type clusters. Fullerene molecules in the fulleride of metal nano-cluster are preserved. The alloying is done by milling in a planetary mill. A material including a fulleride of a metal nano-cluster is also provided.Type: ApplicationFiled: November 16, 2010Publication date: May 19, 2011Inventors: Vladimir Davidovich Blank, Gennadii Ivanovich Pivovarov, Mikhail Yurievich Popov
-
Publication number: 20110091370Abstract: Carbon fluoride is synthesized by reactively or high intensity/energy milling at ambient room temperature carbon-containing material (such as graphite, carbon black, coke, or other carbon-based material) with an inorganic fluoride agent (such as cobalt trifluoride) other than fluorine gas. The following chemical reaction occurs: xC+CoF3?CxF+CoF2, wherein x equals 1 to 4. The CxF is separated from the CoF2 and the CoF3 by digesting the CxF, CoF2 and the CoF3 in hot water of at least approximately 90° C. causing the CoF2 to dissolve; and then filtering the CoF2. The CoF3 is unreacted and undergoes hydrolysis in the hot water to form Co(OH)3 or Co2O3.3H2O, which is removed by washing with sulfuric acid. Alternatively, the CxF is separated from the CoF2 and the CoF3 by digesting the CxF, CoF2 and the CoF3 in heated sulfuric acid followed by filtration and washing with sulfuric acid and then with hot water.Type: ApplicationFiled: September 8, 2010Publication date: April 21, 2011Applicant: U.S. Government as represented by the Secretary of the ArmyInventors: Wishvender K. Behl, Jeffrey A. Read
-
Publication number: 20110088759Abstract: Fullerene-capped Group IV nanoparticles, materials and devices made from the nanoparticles, and methods for making the nanoparticles are provided. The fullerene-capped Group IV nanoparticles have enhanced electron transporting properties and are well-suited for use in photovoltaic, electronics, and solid-state lighting applications.Type: ApplicationFiled: December 22, 2010Publication date: April 21, 2011Inventors: Elena Rogojina, David Jurbergs
-
Patent number: 7915187Abstract: Disclosed is a highly-pure fine titanium carbide powder having a maximum particle size of 100 nm or less and containing metals except titanium in an amount of 0.05 wt % or less and free carbon in an amount of 0.5 wt % or less. The powder has a NaCl-type crystal structure, and a composition represented by TiCxOyNz, wherein X, Y and Z satisfy the relations: 0.5?X?1.0; 0?Y?0.3; 0?Z?0.2; and 0.5?X+Y+Z?1.0.) The powder is produced by: dissolving an organic substance serving as a carbon source in a solvent to prepare a liquid, wherein the organic substance contains at least one OH or COOH group which is a functional group coordinatable to titanium of titanium alkoxide, and no element except C, H, N and O; mixing titanium alkoxide with the liquid to satisfy the following relation: 0.7???1.Type: GrantFiled: March 30, 2006Date of Patent: March 29, 2011Assignees: Fukuoka Prefecture, Nippon Tungsten Co., Ltd.Inventors: Yoko Taniguchi, Teruhisa Makino, Kunitaka Fujiyoshi, Osamu Nakano, Toru Okui, Yusuke Hara
-
Patent number: 7910082Abstract: A method for preparing ordered mesoporous silicon carbide (OMSiC) nanocomposites uses an evaporation-induced self-assembly of a precursor composition that preferably includes a phenolic resin, pre-hydrolyzed tetraethyl orthosilicate, a surfactant, and butanol. The precursor mixture is dried, cross-linked and heated to form ordered mesoporous silicon carbide material having discrete domains of ordered, mesoscale pores.Type: GrantFiled: August 13, 2008Date of Patent: March 22, 2011Assignee: Corning IncorporatedInventors: Steven Bruce Dawes, Wageesha Senaratne
-
Patent number: 7901661Abstract: A process for making a hydrogenated carbon material is provided which includes forming a mixture of a carbon source, particularly a carbonaceous material, and a hydrogen source. The mixture is reacted under reaction conditions such that hydrogen is generated and/or released from the hydrogen source, an amorphous diamond-like carbon is formed, and at least a portion of the generated and/or released hydrogen associates with the amorphous diamond-like carbon, thereby forming a hydrogenated carbon material. A hydrogenated carbon material including a hydrogen carbon clathrate is characterized by evolution of molecular hydrogen at room temperature at atmospheric pressure in particular embodiments of methods and compositions according to the present invention.Type: GrantFiled: December 20, 2006Date of Patent: March 8, 2011Assignee: The Penn State Research FoundationInventors: Angela Lueking, Deepa Narayanan
-
Patent number: 7892514Abstract: Disclosed is a method of exfoliating a layered material (e.g., graphite and graphite oxide) to produce nano-scaled platelets having a thickness smaller than 100 nm, typically smaller than 10 nm, and often between 0.34 nm and 1.02 nm. The method comprises: (a) subjecting the layered material in a powder form to a halogen vapor at a first temperature above the melting point or sublimation point of the halogen at a sufficient vapor pressure and for a duration of time sufficient to cause the halogen molecules to penetrate an interlayer space of the layered material, forming a stable halogen-intercalated compound; and (b) heating the halogen-intercalated compound at a second temperature above the boiling point of the halogen, allowing halogen atoms or molecules residing in the interlayer space to exfoliate the layered material to produce the platelets.Type: GrantFiled: February 22, 2007Date of Patent: February 22, 2011Assignee: Nanotek Instruments, Inc.Inventors: Bor Z. Jang, Aruna Zhamu
-
Patent number: 7887774Abstract: The present invention is directed toward methods of selectively functionalizing carbon nanotubes of a specific type or range of types, based on their electronic properties, using diazonium chemistry. The present invention is also directed toward methods of separating carbon nanotubes into populations of specific types or range(s) of types via selective functionalization and electrophoresis, and also to the novel compositions generated by such separations.Type: GrantFiled: July 1, 2009Date of Patent: February 15, 2011Assignee: William Marsh Rice UniversityInventors: Michael S. Strano, Monica Usrey, Paul Barone, Christopher A. Dyke, James M. Tour, W. Carter Kittrell, Robert H Hauge, Richard E. Smalley, Irene Marie Marek, legal representative
-
Publication number: 20110027162Abstract: Systems and methods for the formation of carbon-based nanostructures are generally described. In some embodiments, the nanostructures may be formed on a nanopositor. The nanopositor can comprise, in some embodiments, at least one of metal atoms in a non-zero oxidation state and metalloid atoms in a non-zero oxidation state. For example, the nanopositor may comprise a metal oxide, a metalloid oxide, a metal chalcogenide, a metalloid chalcogenide, and the like. The carbon-based nanostructures may be grown by exposing the nanopositor, in the presence or absence of a growth substrate, to a set of conditions selected to cause formation of carbon-based nanostructures on the nanopositor. In some embodiments, metal or metalloid atoms in a non-zero oxidation state are not reduced to a zero oxidation state during the formation of the carbon-based nanostructures. In some cases, metal or metalloid atoms in a non-zero oxidation state do not form a carbide during the formation of the carbon-based nanostructures.Type: ApplicationFiled: July 30, 2010Publication date: February 3, 2011Applicant: Massachusetts Institute of TechnologyInventors: Stephen A. Steiner, III, Brian L. Wardle
-
Publication number: 20110008239Abstract: A method of storing hydrogen using carbon nanotubes having a diameter ranging from 0.6-0.8 nm. The hydrogen may be stored in a container which is made of another material. The carbon nanotubes may be provided inside the container for adsorbing the hydrogen.Type: ApplicationFiled: July 10, 2009Publication date: January 13, 2011Applicant: CITY UNIVERSITY OF HONG KONGInventor: Ruiqin ZHANG
-
Publication number: 20110003149Abstract: The invention provides fluorinated multi-layered carbon nanomaterials and methods for their production. In one aspect of the invention, the carbon nanomaterials are partially fluorinated and retain some unreacted carbon. The invention also provides electrodes and electrochemical devices incorporating the fluorinated carbon nanomaterials of the invention.Type: ApplicationFiled: September 13, 2010Publication date: January 6, 2011Inventors: Rachid YAZAMI, André Hamwi
-
Patent number: 7862790Abstract: A plurality of carbide, such as silicon carbide, tungsten carbide, etc., nanofibrils predominantly having diameters substantially less than about 100 nm and a method for making such carbide nanofibrils.Type: GrantFiled: August 20, 2007Date of Patent: January 4, 2011Assignee: Hyperion Catalysis Internationl, Inc.Inventors: David Moy, Chun-Ming Niu
-
Publication number: 20100323272Abstract: The present invention is made to provide a carbon catalyst capable of preventing the coarsening of particles of nanoshell structure of carbon which causes reduction in activity for oxygen reduction reaction. The carbon catalyst is produced by the steps of: preparing a carbon precursor polymer; mixing a transition metal or a compound of the transition metal into the carbon precursor polymer; spinning the mixture of the carbon precursor polymer and the transition metal or the compound of the transition metal into fibers; and carbonizing the fibers.Type: ApplicationFiled: August 6, 2010Publication date: December 23, 2010Applicants: NATIONAL UNIVERSITY CORPORATION GUNMA UNIVERSITY, Nisshinbo Holdings Inc.Inventors: Jun-ichi Ozaki, Terukazu Sando, Shinichi Horiguchi, Takeaki Kishimoto, Kazuo Saito
-
Patent number: 7855385Abstract: The present invention discloses a SiC crystal, comprising: acceptor impurities that are in a concentration greater than 5×1017 cm?3; donor impurities that are in a concentration less than 1×1019 cm?3 and greater than the concentration of the acceptor impurities. The present invention discloses a semiconductor device, comprising: a SiC fluorescent layer having acceptor impurities that are in a concentration greater than 5×1017 cm?3 and donor impurities that are in a concentration less than 1×1019 cm?3 and greater than the concentration of the acceptor impurities; and a light emission layer that is layered on the SiC fluorescent layer and emits excitation light for the SiC fluorescent layer.Type: GrantFiled: May 12, 2008Date of Patent: December 21, 2010Assignees: Meijo University, National University Corporation Kyoto Institute of TechnologyInventors: Satoshi Kamiyama, Hiroshi Amano, Isamu Akasaki, Motoaki Iwaya, Masahiro Yoshimoto, Hiroyuki Kinoshita
-
Publication number: 20100314008Abstract: A nanopowder and a method of making are disclosed. The nanopowder may be in the form of nanoparticles with an average size of less than about 200 nm and contain a reactive transition metal, such as hafnium, zirconium, or titanium. The nanopowder can be formed in a liquid under sonication by reducing a halide of the transition metal.Type: ApplicationFiled: June 11, 2010Publication date: December 16, 2010Applicant: The Government of the US, as represented by the Secretary of the NavyInventors: Albert Epshteyn, Andrew P. Purdy
-
Publication number: 20100291298Abstract: The present embodiments relate methods of preparing metal carbides, for example some embodiments relate to methods of preparing metal carbides that do not contain the formation of an intermediate oxide compound. Some embodiments relate to methods that do not employ hydrocarbons in the reaction. Some embodiments relate to a method of preparing metal carbides that involves citrate gel precursors and a non-hydrocarbon gas but does not use a hydrocarbon gas, does not form an oxide intermediate species and does not produce carbon monoxide. In some embodiments, the metal carbides are transition metal carbides.Type: ApplicationFiled: May 12, 2009Publication date: November 18, 2010Applicant: The Government of the United States of America, as represented by the Secretary of the NavyInventors: Karen Swider Lyons, Arnold M. Stux
-
Publication number: 20100285392Abstract: Disclosed are metallized carbonaceous materials, processes for forming such materials, and electrodes and fuel cells comprising the disclosed materials.Type: ApplicationFiled: September 26, 2008Publication date: November 11, 2010Applicant: Drexel UniversityInventors: Yossef A. Elabd, Yury Gogotsi, Benjamin Eirich, Daniel Shay