With Metal, Metal Compound, Or Phosphorus Compound Patents (Class 423/447.5)
  • Patent number: 11575131
    Abstract: The present disclosure relates to an anode electrode active material for a secondary battery containing nickel cobalt molybdenum oxide, an anode electrode for a secondary battery including the same, a secondary battery including the anode electrode for a secondary battery, and a method for manufacturing the same. The novel anode electrode material for a sodium secondary battery containing nickel cobalt molybdenum oxide according to the present disclosure allows intercalation/deintercalation reaction of sodium ion during charge/discharge and does not undergo significant volume change during the intercalation reaction because structure is maintained stably during repeated charge/discharge. As a result, electrode damage and electric short circuit are decreased and, thus, improved electrochemical characteristics can be achieved in long-life and high-rate capability.
    Type: Grant
    Filed: August 11, 2020
    Date of Patent: February 7, 2023
    Assignees: Korea Institute of Science and Technology, Dongguk University Industry-Academic Cooperation Foundation
    Inventors: Kyung Yoon Chung, Kyung-Wan Nam, Jaeho Park, Daniel Adjah Anang
  • Patent number: 11542156
    Abstract: A method for forming a microscale device may include growing, by a chemical vapor deposition, a patterned forest of vertically aligned carbon nanotubes, wherein the patterned forest defines a component of the microscale device, and applying a conformal non-metal coating to the vertically aligned carbon nanotubes throughout the patterned forest, wherein the conformal non-metal coating comprises a substantially uniform thickness along a length of the vertically aligned carbon nanotubes.
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: January 3, 2023
    Assignee: CNT Holdings, LLC
    Inventors: Robert C. Davis, Richard Vanfleet
  • Patent number: 11389789
    Abstract: The invention discloses a visible light responsive titanium dioxide nanowire/metal organic skeleton/carbon nanofiber membrane and preparation method and application thereof. A CNF (Carbon Nano Fiber)/TiO2 nano-wire/MIL-100 (represented as CTWM) membrane material is prepared and an MIL-100 material is used for adsorbing waste gas to enhance the photocatalytic effect of titanium dioxide on the membrane material; a CNF/TiO2/MIL-100 membrane catalyst sufficiently utilizes the adsorption capability of MIL-100 on the waste gas, the photocatalytic degradation performance of the TiO2 and high electrical conductivity of CNF to effectively prolong the service life of photoelectrons and promote the photocatalytic activity of the photoelectrons.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: July 19, 2022
    Assignee: SOOCHOW UNIVERSITY
    Inventors: Jianmei Lu, Dongyun Chen, Jun Jiang
  • Patent number: 11348890
    Abstract: An assembly platform for arrangement as an interposer device between an integrated circuit and a substrate to interconnect the integrated circuit and the substrate through the assembly platform, the assembly platform comprising: an assembly substrate; a plurality of conducting vias extending through the assembly substrate; at least one nanostructure connection bump on a first side of the assembly substrate, the nanostructure connection bump being conductively connected to the vias and defining connection locations for connection with at least one of the integrated circuit and the substrate, wherein each of the nanostructure connection bumps comprises: a plurality of elongated conductive nanostructures vertically grown on the first side of the assembly substrate, wherein the plurality of elongated nanostructures are embedded in a metal for the connection with at least one of the integrated circuit and the substrate, at least one connection bump on a second side of the assembly substrate, the second side being
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: May 31, 2022
    Assignee: SMOLTEK AB
    Inventors: M Shafiqul Kabir, Anders Johansson, Vincent Desmaris, Muhammad Amin Saleem
  • Patent number: 10590258
    Abstract: A carbon fiber precursor composition and a method for preparing carbon fiber precursor are provided. The carbon fiber precursor composition includes 100 parts by weight of acrylonitrile; 1-15 parts by weight of co-monomer; and, 0.1-3 parts by weight of stereoregularity controlling agent. The stereoregularity controlling agent has a structure represented by formula (I), Formula (II), Formula (III), or Formula (IV): wherein R1 and R2 are hydrogen, —OH, —COOH, or —NH2; R3 is C2-8 alkylene, or carbonyl; R4 is hydrogen, or C1-6 alkyl; and, R5 is C3-6 alkylene.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: March 17, 2020
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chung-Yang Chuang, Kai-Jen Hsiao, Jing-Wen Tang, Tzong-Ming Lee
  • Patent number: 9901913
    Abstract: A catalyst, which is obtained by mixing a compound expressed by the following Structural Formula (1), a nitroalkane compound, a neodymium-containing compound, a sodium-containing compound, and a carbon structure:
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: February 27, 2018
    Assignee: MICROBIAL CHEMISTRY RESEARCH FOUNDATION
    Inventors: Masakatsu Shibasaki, Naoya Kumagai, Takanori Ogawa
  • Patent number: 9859561
    Abstract: Methods of making cathodes for lithium-sulfur batteries are disclosed, in addition to cathodes and batteries containing the cathodes. A method of making a cathode is disclosed which includes extracting lignosulfonate from brown liquor, pyrolyzing the lignosulfonate, carbonizing the pyrolyzed lignosulfonate to form a carbon-sulfur compound, and forming the carbon-sulfur compound into a cathode. A cathode for a lithium-sulfur battery is disclosed which includes pyrolized lignosulfonate recovered from brown liquor, and carbon. The pyrolized lignosulfonate and carbon are suspended in a matrix having a substantially homogenous distribution of sulfur. A battery is disclosed in which an anode including an electrolye, lithium, is provided along with a membrane separate and a carbon comprising a carbon-sulfur compound derived from lignosulfonates.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: January 2, 2018
    Assignee: Rensselaer Polytechnic Institute
    Inventors: Trevor Simmons, Rahul Mukherjee
  • Patent number: 9745644
    Abstract: Disclosed are a composite nanofiber membrane for the adsorption of lithium, a method for preparing the same, and a lithium recovery apparatus and method using the same. The composite nanofiber membrane for the adsorption of lithium is immobilized with manganese oxide selectively adsorptive of lithium. The composite nanofiber membrane for lithium adsorption exhibits high selectivity for lithium ions and allows for the rapid and easy diffusion of lithium ions through interstitial spaces of the adsorbent. Particularly, the lithium recovery apparatus using the composite nanofiber membrane for lithium adsorption is able to effectively adsorb lithium ions dissolved in seawater in a selective manner within a short period of time, thus reducing the time taken for the adsorption process.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: August 29, 2017
    Assignee: MYONGJI UNIVERSITY INDUSTRY AND ACADEMIA COOPERATION FOUNDATION
    Inventors: Wook-Jin Chung, Myoung Jun Park, Grace M. Nisola, Arnel B. Beltran, Rey Eliseo C. Torrejos, Jeong Gil Seo, Seong-Poong Lee, Young Deuk Yoo
  • Patent number: 8536080
    Abstract: A metal carbide ceramic fiber having improved mechanical properties and characteristics and improved processes and chemical routes for manufacturing metal carbide ceramic fiber. Metal carbide ceramic fibers may be formed via reaction bonding of a metal-based material (e.g. boron) with the inherent carbon of a carrier medium. One embodiment includes a method of making a metal carbide ceramic fiber using VSSP to produce high yield boron carbide fiber. Embodiments of the improved method allow high volume production of high density boron carbide fiber. The chemical routes may include a direct production of boron carbide fiber from boron carbide powder (B4C) and precursor (e.g. rayon fiber) having a carbon component to form a B4C/rayon fiber that may be processed at high temperature to form boron carbide fiber, and that may be subsequently undergo a hot isostatic pressing to improve fiber purity. Another route may include a carbothermal method comprising combining boron powder (B) with a precursor (e.g.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: September 17, 2013
    Assignee: Advanced Cetametrics, Inc.
    Inventors: Farhad Mohammadi, Richard B. Cass
  • Publication number: 20120157298
    Abstract: The invention is directed to a process for producing carbon nanofibres and/or carbon nanotubes, which process comprises pyrolysing a particulate cellulosic and/or carbohydrate substrate that has been impregnated with a compound of an element or elements, the metal or alloy, respectively, of which is capable of forming carbides, in a substantially oxygen free, volatile silicon compound containing atmosphere, optionally in the presence of a carbon compound.
    Type: Application
    Filed: March 1, 2010
    Publication date: June 21, 2012
    Inventors: J. Hoekstra, John Wilhelm Geus, L. W. Jenneskens
  • Patent number: 8197790
    Abstract: A method of making a filter material for producing potable water comprises providing activated carbon particles, depositing one or more nanofilament precursors at least partially onto the surface of the activated carbon particles, agitating the activated carbon particles and deposited nanofilament precursors in the presence of carbonaceous vapor, and heating the activated carbon particles and the deposited nanofilament precursors in the presence of carbonaceous vapor at a temperature and time sufficient to produce the filter material comprising activated carbon particles having carbon nanofilaments on the surface of the particles.
    Type: Grant
    Filed: April 13, 2009
    Date of Patent: June 12, 2012
    Assignee: PUR Water Purification Products, Inc.
    Inventors: Michael Donovan Mitchell, Dimitris Ioannis Collias
  • Patent number: 8137591
    Abstract: The present invention relates to a catalyst composition for preparing carbon nanotube containing multi-component support materials of amorphous Si, Mg and Al as well as a bulk scale preparation process for preparing carbon nanotube using said catalyst composition. More specifically, this invention relates to a process for preparing carbon nanotube using the catalyst composition comprising a transition metal catalyst and support materials of amorphous Si, Mg and Al.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: March 20, 2012
    Assignee: Korea Kumho Petrochemical Co., Ltd.
    Inventors: Dong Hwan Kim, Sang-Hyo Ryu, Wan Sung Lee, Namsun Choi, Hyun-Kyung Sung, Youngchan Jang
  • Publication number: 20110280793
    Abstract: Disclosed is a method of: providing a mixture of a polymer or a resin and a transition metal compound, producing a fiber from the mixture, and heating the fiber under conditions effective to form a carbon nanotube-containing carbonaceous fiber. The polymer or resin is an aromatic polymer or a precursor thereof and the mixture is a neat mixture or is combined with a solvent. Also disclosed are a carbonaceous fiber or carbonaceous nanofiber sheet having at least 15 wt. % carbon nanotubes, a fiber or nanofiber sheet having the a polymer or a resin and the transition metal compound, and a fiber or nanofiber sheet having an aromatic polymer and metal nanoparticles.
    Type: Application
    Filed: July 22, 2011
    Publication date: November 17, 2011
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Teddy M. Keller, Matthew Laskoski
  • Patent number: 7985394
    Abstract: A system and method for manufacturing carbon nanotubes via epitaxial growth from a source of supersaturated carbon solution is disclosed, whereby selection of the diameter, length, and chirality of single-walled or multi-walled nanotubes is enabled.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: July 26, 2011
    Inventor: Gideon Duvall
  • Publication number: 20110121227
    Abstract: Disclosed is a method of: providing a mixture of a polymer or a resin and a transition metal compound, producing a fiber from the mixture, and heating the fiber under conditions effective to form a carbon nanotube-containing carbonaceous fiber. The polymer or resin is an aromatic polymer or a precursor thereof and the mixture is a neat mixture or is combined with a solvent. Also disclosed are a carbonaceous fiber or carbonaceous nanofiber sheet having at least 15 wt. % carbon nanotubes, a fiber or nanofiber sheet having the a polymer or a resin and the transition metal compound, and a fiber or nanofiber sheet having an aromatic polymer and metal nanoparticles.
    Type: Application
    Filed: February 4, 2011
    Publication date: May 26, 2011
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Teddy M. Keller, Matthew Laskoski
  • Patent number: 7906095
    Abstract: When growing carbon nanotubes, a substrate is delivered into a thermal CVD chamber whose internal temperature is a room temperature, and a mixed gas of an inert gas and a raw gas is introduced in the inside thereof. After a pressure inside of the chamber is stabilized at 1 kPa, the temperature in the chamber is raised to 510° C. in 1 minute. As a result, the carbon nanotubes start to grow linearly from the respective catalytic particles without any fusion of each of the catalytic particles. Subsequently, the temperature and an atmosphere are maintained for about 30 minutes. Once the carbon nanotubes start to grow, surfaces of the catalytic particles are covered by carbon, so that any fusion of each of the catalytic particles can be avoided even during the maintenance for about 30 minutes.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: March 15, 2011
    Assignee: Fujitsu Limited
    Inventor: Akio Kawabata
  • Patent number: 7901654
    Abstract: Methods, processes, and apparatuses for the large scale synthesis of single-walled carbon nanotubes having small diameters are provided. Metal catalysts having small diameter and narrow distribution of particle sizes are prepared and continuously injected as aerosols into a reactor. The metal catalysts are supported on supports that are substantially free of carbon, and the reactor is configured to control the flow of the gases such that the reaction time and contact of the reactants with the reactor walls can be controlled. Single-walled carbon nanotubes can be continuously synthesized at a large scale and with high yields, and with small diameters and with narrow diameter ranges.
    Type: Grant
    Filed: May 4, 2006
    Date of Patent: March 8, 2011
    Assignee: Honda Motor Co., Ltd.
    Inventor: Avetik Harutyunyan
  • Patent number: 7887771
    Abstract: Methods for manufacturing carbon nanostructures include 1) forming intermediate carbon nanostructures by polymerizing a carbon precursor in the presence of templating nanoparticles, 2) carbonizing the intermediate carbon nanostructures to form an intermediate composite nanostructure, and 3) removing the templating nanoparticles from the intermediate composite nanostructure to form carbon nanorings. The carbon nanorings manufactured using the foregoing steps have one or more carbon layers forming a wall that defines a generally annular nanostructure having a hole. The length of the nanoring is less than or about equal to the outer diameter thereof. The carbon nanostructures are well-suited for use as a fuel cell catalyst support. The carbon nanostructures exhibit high surface area, high porosity, high graphitization, and facilitate mass transfer and electron transfer in fuel cell reactions.
    Type: Grant
    Filed: October 5, 2006
    Date of Patent: February 15, 2011
    Assignees: Headwaters Technology Innovation, LLC, Dalian Institute
    Inventors: Gongquan Sun, Shuihua Tang, Shiguo Sun, Qin Xin, Changkun Liu, Bing Zhou
  • Patent number: 7868333
    Abstract: Processes are provided for removing metal-based catalyst residues from carbon nanotubes by contacting the carbon nanotubes with an active metal agent and carbon monoxide.
    Type: Grant
    Filed: November 28, 2007
    Date of Patent: January 11, 2011
    Assignee: E.I. du Pont de Nemours and Company
    Inventor: Steven Dale Ittel
  • Patent number: 7799726
    Abstract: A composite comprising a support activated by impregnation and carbon nanotubes or nanofibers formed by vapor deposition, wherein the weight of said carbon nanotubes or nanofibers formed on the said support is at least equal to 10.
    Type: Grant
    Filed: November 20, 2002
    Date of Patent: September 21, 2010
    Assignees: Sicat, Centre National de la Recherche; Scientifique, Universite de Strasbourg
    Inventors: Cuong Pham-Huu, Ricardo Vieira, Marc J. Ledoux, Loïc Charbonniere, Raymond Ziessel
  • Patent number: 7794682
    Abstract: A method of extracting fullerenes from a carbon matrix in which they are produced. The method is applicable to both fullerenes that exhibit greater than 0.1 mg/ml solubility in toluene and to fullerenes that are essentially insoluble in toluene, i.e., those exhibiting less than or equal to 0.1 mg/ml solubility. The method disclosed herein extracts more of the soluble fullerenes from the carbon matrix than extraction conducted by solely contacting with solvent. A method is also provided for creating salts of the extracted fullerenes.
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: September 14, 2010
    Assignee: TDA Research, Inc.
    Inventors: Michael D. Diener, James W. Raebiger, Robert D. Bolskar, John M. Alford
  • Patent number: 7785558
    Abstract: The present invention relates to a method of manufacturing a carbon nanostructure for growing crystalline carbon by vapor deposition from a crystal growth surface of a catalytic base including a catalytic material, and in particular, to a method of manufacturing a carbon nanostructure where at least two gases including a feedstock gas are brought into contact with the catalytic base simultaneously. Preferably, the at least two gases are constituted by at least one feedstock gas and at least one carrier gas. Preferably, the carrier gas is brought into contact with the crystal growth surface, and the feedstock gas is brought into contact with at least a part of a region except for the crystal growth surface with which the carrier gas has been brought into contact. Preferably, the material gas contains an ion, and further preferably, it contains a carbon ion.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: August 31, 2010
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventor: Takeshi Hikata
  • Patent number: 7776307
    Abstract: Single-walled carbon nanotube transistor devices, and associated methods of making such devices include a porous structure for the single-walled carbon nanotubes. The porous structure may be anodized aluminum oxide or another material. Electrodes for source and drain of a transistor are provided at opposite ends of the single-walled carbon nanotube devices. A concentric gate surrounds at least a portion of a nanotube in a pore. A transistor of the invention may be especially suited for power transistor or power amplifier applications.
    Type: Grant
    Filed: August 21, 2006
    Date of Patent: August 17, 2010
    Assignee: Etamota Corporation
    Inventor: Thomas W. Tombler
  • Patent number: 7767615
    Abstract: A method for producing aligned carbon nanotubes and/or nanofibres comprises providing finely divided substrate particle having substantially smooth faces with radii of curvature of more than 1 ?m and of length and breadth between 1 ?m and 5 mm and having catalyst material on their surface and a carbon-containing gas at a temperature and pressure at which the carbon-containing gas will react to form carbon when in the presence of the supported catalyst, and forming aligned nanotubes and/or nanofibres by the carbon-forming reaction.
    Type: Grant
    Filed: November 13, 2003
    Date of Patent: August 3, 2010
    Assignee: Cambridge University Technical Services Limited
    Inventors: Ian Kinloch, Charanjeet Singh, Milo Sebastian Peter Shaffer, Krzysztof K. K. Koziol, Alan Windle
  • Patent number: 7767616
    Abstract: A catalyst for an electro-chemical oxygen reduction reaction (ORR) of a bundle of longitudinally aligned carbon nanotubes having a catalytically active transition metal incorporated longitudinally in said nanotubes. A method of making an electro-chemical catalyst for an oxygen reduction reaction (ORR) having a bundle of longitudinally aligned carbon nanotubes with a catalytically active transition metal incorporated throughout the nanotubes, where a substrate is in a first reaction zone, and a combination selected from one or more of a hydrocarbon and an organometallic compound containing an catalytically active transition metal and a nitrogen containing compound and an inert gas and a reducing gas is introduced into the first reaction zone which is maintained at a first reaction temperature for a time sufficient to vaporize material therein.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: August 3, 2010
    Assignee: UChicago Argonne, LLC
    Inventors: Di-Jia Liu, Junbing Yang, Xiaoping Wang
  • Patent number: 7718156
    Abstract: Carbon nanostructures are formed from a carbon precursor and catalytic templating nanoparticles. Methods for manufacturing carbon nanostructures generally include (1) forming a precursor mixture that includes a carbon precursor and a plurality of catalytic templating particles, (2) carbonizing the precursor mixture to form an intermediate carbon material including carbon nanostructures, amorphous carbon, and catalytic metal, (3) purifying the intermediate carbon material by removing at least a portion of the amorphous carbon and optionally at least a portion of the catalytic metal, and (4) heat treating the purified intermediate carbon material and/or treating the purified intermediate carbon material with a base to remove functional groups on the surface thereof. The removal of functional groups increases the graphitic content of the carbon nanomaterial and decreases its hydrophilicity.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: May 18, 2010
    Assignee: Headwaters Technology Innovation, LLC
    Inventors: Cheng Zhang, Martin Fransson, Bing Zhou
  • Patent number: 7718155
    Abstract: Methods for manufacturing carbon nanostructures include: 1) forming a plurality of catalytic templating particles using a plurality of dispersing agent molecules; 2) forming an intermediate carbon nanostructure by polymerizing a carbon precursor in the presence of the plurality of templating nanoparticles; 3) carbonizing the intermediate carbon nanostructure to form a composite nanostructure; and 4) removing the templating nanoparticles from the composite nanostructure to yield the carbon nanostructures. The carbon nanostructures are well-suited for use as a catalyst support. The carbon nanostructures exhibit high surface area, high porosity, and high graphitization. Carbon nanostructures according to the invention can be used as a substitute for more expensive and likely more fragile carbon nanotubes.
    Type: Grant
    Filed: October 5, 2006
    Date of Patent: May 18, 2010
    Assignee: Headwaters Technology Innovation, LLC
    Inventors: Cheng Zhang, Martin Fransson, Changkun Liu, Bing Zhou
  • Publication number: 20090311168
    Abstract: A system and method for manufacturing carbon nanotubes via epitaxial growth from a source of supersaturated carbon solution is disclosed, whereby selection of the diameter, length, and chirality of single-walled or multi-walled nanotubes is enabled.
    Type: Application
    Filed: September 19, 2007
    Publication date: December 17, 2009
    Inventor: Gideon Duvall
  • Patent number: 7625544
    Abstract: A method for manufacturing open-ended carbon nanotubes is described. The method includes steps of: providing a substrate having a catalyst layer formed thereon; placing the substrate in a reaction chamber; introducing a carbon source gas containing carbon element into the reaction chamber for growing carbon nanotubes form the catalyst layer; promptly reducing a concentration of the carbon source gas when the growth of carbon nanotubes in process, thereby ceasing the growth of the carbon nanotubes instantly; and separating the carbon nanotubes from the catalyst layer.
    Type: Grant
    Filed: July 11, 2006
    Date of Patent: December 1, 2009
    Assignees: Tsinghua University, Hon Hai Precisiion Industry Co., Ltd.
    Inventors: Kai Liu, Kai-Li Jiang, Shou-Shan Fan
  • Patent number: 7622732
    Abstract: Heterostructure devices incorporate carbon nanotube technology to implement rectifying devices including diodes, rectifiers, silicon-controlled rectifiers, varistors, and thyristors. In a specific implementation, a rectifying device includes carbon nanotube and nanowire elements. The carbon nanotubes may be single-walled carbon nanotubes. The devices may be formed using parallel pores of a porous structure. The porous structure may be anodized aluminum oxide or another material. A device of the invention may be especially suited for high power applications.
    Type: Grant
    Filed: August 4, 2006
    Date of Patent: November 24, 2009
    Assignee: Atomate Corporation
    Inventor: Thomas W. Tombler, Jr.
  • Patent number: 7597941
    Abstract: A method of synthesizing and controlling the internal diameters, conical angles, and morphology of tubular carbon nano/micro structures. Different morphologies can be synthesized included but not limited to cones, straight tubes, nozzles, cone-on-tube (funnels), tube-on-cone, cone-tube-cone, n-staged structures, multijunctioned tubes, Y-junctions, dumbbell (pinched morphology) and capsules. The process is based on changing the wetting behavior of a low melting metals such as gallium, indium, and aluminum with carbon using a growth environment of different gas phase chemistries. The described carbon tubular morphologies can be synthesized using any kind of gas phase excitation such as, but not limited to, microwave excitation, hot filament excitation, thermal excitation and Radio Frequency (RF) excitations. The depositions area is only limited by the substrate area in the equipment used and not limited by the process.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: October 6, 2009
    Assignee: University of Louisville Research Foundation, Inc.
    Inventors: Mahendra Kumar Sunkara, Gopinath Bhimarasetti
  • Publication number: 20090065765
    Abstract: A method for manufacturing carbon nanotubes includes the steps of: (a) depositing catalytic fine particles containing Al—Fe, Zr—Co or Hf—Co on a base body; and (b) growing carbon nanotubes on the catalytic fine particles deposited on the base body.
    Type: Application
    Filed: September 15, 2008
    Publication date: March 12, 2009
    Applicant: FUJITSU LIMITED
    Inventors: Daiyu KONDO, Shintaro SATO
  • Patent number: 7470418
    Abstract: The present invention discloses ultra-fine fibrous carbon and preparation of the same. Specifically, the present ultra-fine fibrous carbon is characterized by the graphite-like structure with the sp2 hybrid carbon content of more than 95% per total content; the (002) plane interlayer spacing (d002, d-spacing of C(002) profiles determined by X-ray diffraction method) of 0.3370-0.3700 nm; the (002) plane stacking of more than 4 layers, namely the stacking height (Lc002) of more than 1.5 nm; fibrous carbon length per fibrous carbon width of diameter (aspect ratio) of more than 20; the average diameter of 5˜50 nm.
    Type: Grant
    Filed: October 17, 2003
    Date of Patent: December 30, 2008
    Assignee: Nexen Nano Tech Co., Ltd.
    Inventor: Seong Ho Yoon
  • Patent number: 7229944
    Abstract: Fiber structures that include a catalytic material are provided. The fiber structures (e.g., membranes) may be formed of interconnected carbon fibers. The catalytic material may be in the form of nanosize particles supported on the fibers. In one method of the invention, the structures are produced by electrospinning a polymeric material fiber structure that is subsequently converted to a carbon fiber structure in a heat treatment step which also causes the catalytic material particles to nucleate on the carbon fibers and grow to a desired size. The catalytic material may be uniformly distributed across the carbon fiber structure and the amount of catalytic material may be controlled. These factors may enhance catalytic performance and/or enable using less catalytic material for equivalent catalytic performance which can lead to cost savings, amongst other advantages. The fiber structures may be used in a variety of applications including electrodes in batteries and fuel cells.
    Type: Grant
    Filed: July 23, 2004
    Date of Patent: June 12, 2007
    Assignee: Massachusetts Institute of Technology
    Inventors: Yang Shao-Horn, John Paul Kurpiewski, Quinn C. Horn
  • Patent number: 7198771
    Abstract: The invention comprises a chemical composition with the structure shown below. The composition can be polymerized or pyrolyzed, forming transition metal nanoparticles homogeneously dispersed in a thermoset or carbon composition. The size of the nanoparticles can be controlled by manipulating the number and arrangement of functional groups in the composition and by changing the conditions of the polymerization or pyrolysis. The resulting thermosets and carbon compositions have useful magnetic, electric, mechanical, catalytic and/or optical properties.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: April 3, 2007
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Teddy M. Keller, Joseph Perrin, Syed B. Qadri
  • Patent number: 7160531
    Abstract: Novel methods and apparati for continuous production of aligned carbon nanotubes are disclosed. In one aspect, the method comprises dispersion of a metal catalyst in a liquid hydrocarbon to form a feed solution, and volatilizing the feed solution in a reactor through which a substrate is continuously passed to allow growth of nanotubes thereon. In another aspect, the apparatus comprises a reactor, a tube-within-a-tube injector, and a conveyor belt for passing a substrate through the reactor. The present invention further discloses a method for restricting the external diameter of carbon nanotubes produced thereby comprising passing the feed solution through injector tubing of a specified diameter, followed by passing the feed solution through an inert, porous medium. The method and apparati of this invention provide a means for producing aligned carbon nanotubes of a particular external diameter which is suitable for large scale production in an industrial setting.
    Type: Grant
    Filed: May 8, 2002
    Date of Patent: January 9, 2007
    Assignee: University of Kentucky Research Foundation
    Inventors: David N. Jacques, Rodney J. Andrews
  • Patent number: 7150840
    Abstract: A graphitized fine carbon fiber comprising a hollow space extending along its center axis, and a plurality of graphene sheets, wherein the fiber has an end surface comprising a portion of discontinuity in which ends of graphene sheets are not bonded to one another and at least one portion of continuity comprised of at least one group of graphene sheets in which one graphene sheet is bonded to another graphene sheet adjacent thereto.
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: December 19, 2006
    Assignee: Showa Denko K.K.
    Inventors: Ryuji Yamamoto, Akinori Sudoh
  • Patent number: 7122132
    Abstract: A branched vapor-grown carbon fiber having an outer diameter of 0.5 ?m or less and an aspect ratio of at least 10, the carbon fiber having a compressed specific resistance of 0.02 ?·cm or less, each fiber filament having a hollow cylindrical structure, preferably the carbon fiber containing boron and having a compressed specific resistance of 0.018 ?·cm or less. An electrically conductive transparent composition comprising a resin binder and carbon fiber incorporated into the binder, having transparency and comprising vapor grown carbon fiber having an outer diameter of 0.01–0.1 ?m, an aspect ratio of 10–15,000, and a compressed specific resistance of 0.02 ?·cm or less, and surface resistivity of 10,000 ?/? or less. An electrically conductive transparent material formed from the aforementioned electrically conductive transparent composition.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: October 17, 2006
    Assignee: Showa Denko K.K.
    Inventors: Toshio Morita, Hitoshi Inoue, Ryuji Yamamoto
  • Patent number: 6936565
    Abstract: Compositions including modified carbide-containing nanorods and/or modified oxycarbide-containing nanorods and/or modified carbon nanotubes bearing carbides and oxycarbides and methods of making the same are provided. Rigid porous structures including modified oxycarbide-containing nanorods and/or modified carbide containing nanorods and/or modified carbon nanotubes bearing modified carbides and oxycarbides and methods of making the same are also provided. The compositions and rigid porous structures of the invention can be used either as catalyst and/or catalyst supports in fluid phase catalytic chemical reactions. Processes for making supported catalyst for selected fluid phase catalytic reactions are also provided.
    Type: Grant
    Filed: October 29, 2001
    Date of Patent: August 30, 2005
    Assignee: Hyperion Catalysis International, Inc.
    Inventors: Jun Ma, David Moy
  • Patent number: 6890504
    Abstract: The invention comprises a chemical composition with the structure shown below. The composition can be polymerized or pyrolyzed, forming transition metal nanoparticles homogeneously dispersed in a thermoset or carbon composition. The size of the nanoparticles can be controlled by manipulating the number and arrangement of functional groups in the composition and by changing the conditions of the polymerization or pyrolysis. The resulting thermosets and carbon compositions have useful magnetic, electric, mechanical, catalytic and/or optical properties.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: May 10, 2005
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Teddy M. Keller, Syed B. Qadri
  • Patent number: 6884861
    Abstract: The present invention provides for a composition comprising: a composition formed by heating to a temperature of from about 300° C.
    Type: Grant
    Filed: December 10, 2001
    Date of Patent: April 26, 2005
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Teddy M. Keller, Joseph Perrin, Syed B. Qadri
  • Patent number: 6841509
    Abstract: A carbon nanocapsule supported catalysts. At least one kind of catalytic metal particle is deposited to a carbon nanocapsule, wherein the carbon nanocapsule has the following formula: F(?M)n, in which F is the carbon nanocapsule, M is the catalytic metal particle, and n is the number of the catalytic metal particle. By applying the carbon nanocapsule as a catalyst support, the catalytic behavior of the catalytic metal particle is specialized, the dispersion is improved, and the catalytic effect is enhanced.
    Type: Grant
    Filed: November 20, 2003
    Date of Patent: January 11, 2005
    Assignee: Industrial Technology Research Institute
    Inventors: Gan-Lin Hwang, Chao-Kang Chang
  • Patent number: 6759004
    Abstract: A metal injection-molding feedstock is heated and plasticized. Supercritical carbon dioxide is injected into the feedstock to form micropores when the pressure is reduced and a parts mold is filled. The micropores are retained when the green parts are debindered and sintered.
    Type: Grant
    Filed: June 6, 2000
    Date of Patent: July 6, 2004
    Assignee: Southco, Inc.
    Inventor: Ratnesh K. Dwivedi
  • Publication number: 20040126305
    Abstract: Methods of fabricating one-dimensional composite nanofiber on a template membrane with porous array by chemical or physical process are disclosed. The whole procedures are established under a base concept of “secondary template”. First of all, tubular first nanofibers are grown up in the pores of the template membrane. Next, by using the hollow first nanofibers as the secondary templates, second nanofibers are produced therein. Finally, the template membrane is removed to obtain composite nanofibers. Showing superior performance in weight energy density, current discharge efficiency and irreversible capacity, the composite nanofibers are applied to extensive scopes like thin-film battery, hydrogen storage, molecular sieving, biosensor and catalyst support except applications in lithium batteries.
    Type: Application
    Filed: April 21, 2003
    Publication date: July 1, 2004
    Inventors: Jin-Ming Chen, Chien-Te Hsieh, Hsiu-Wen Huang, Yue-Hao Huang, Hung-Hsiao Lin, Mao-Huang Liu, Shih-Chieh Liao, Han-Chang Shih
  • Patent number: 6733737
    Abstract: An enhanced method for the post processing, i.e. oxidation or stabilization, of carbon materials including, but not limited to, carbon foams, carbon fibers, dense carbon-carbon composites, carbon/ceramic and carbon/metal composites, which method requires relatively very short and more effective such processing steps. The introduction of an “oxygen spill over catalyst” into the carbon precursor by blending with the carbon starting material or exposure of the carbon precursor to such a material supplies required oxygen at the atomic level and permits oxidation/stabilization of carbon materials in a fraction of the time and with a fraction of the energy normally required to accomplish such carbon processing steps. Carbon based foams, solids, composites and fiber products made utilizing this method are also described.
    Type: Grant
    Filed: August 29, 2001
    Date of Patent: May 11, 2004
    Assignee: Wright Materials Research Corp.
    Inventors: Seng Tan, Cher-Dip Tan
  • Patent number: 6696384
    Abstract: A new shaped activated carbon and the method of its manufacture are disclosed. The invention resides in the crosslinking of a polymeric cellulose, such as sodium carboxymethylcellulose (CMC), within the carbon bodies after they are shaped, employing the CMC as a binder for the activated carbon. The approach to attain product mechanical strength and water stability by crosslinking rather than high temperature heat treatment is not obvious from the prior art teaching. The crosslinking reaction occurs at temperatures below 270° C. In addition, this new binder technology produces shaped carbon bodies having key properties beyond the best level that has been accomplished with other binders.
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: February 24, 2004
    Assignee: MeadWestvaco Corporation
    Inventors: Peter D. A. McCrae, Tiejun Zhang, David R. B. Walker
  • Patent number: 6624108
    Abstract: Reticulated vitrified carbon compositions which contain particles of Cu, Sn, Zn, Pb, Ni, Fe, or alloys or mixtures thereof dispersed therein and reticulated vitreous carbon compositions wherein some or all of said metal or alloy particles have been converted into salts or mixtures of salts thereof. Processes for the preparation of such compositions.
    Type: Grant
    Filed: February 20, 2002
    Date of Patent: September 23, 2003
    Assignee: Regenesys Technologies Limited
    Inventors: Duncan Guy Clark, Mark Christopher Turpin, Ian Whyte, Graham Edward Cooley
  • Patent number: 6599856
    Abstract: A formed activated carbon has a Kiya crushing strength of 1 kg or more and a specific heat of 0.4 J/K·cc or more at 25° C.
    Type: Grant
    Filed: October 20, 2000
    Date of Patent: July 29, 2003
    Assignees: Tennex Corporation, Mitsubishi Chemical Corporation
    Inventors: Masashi Uchino, Eiji Yamada, Hiroshi Yamashita, Kazushi Matsuura, Yoshitaka Takeda, Mitsuo Suzuki
  • Patent number: 6589904
    Abstract: The present invention provides an activated carbon produced by a process, which includes: activating a carbonaceous material, to obtain an activated carbonaceous material; and contacting the activated carbonaceous material with an acid. Another embodiment of the present invention provides an electrode for an electric double-layer capacitor, which includes the above-described activated carbon. Another embodiment of the present invention provides a filter, which includes the above-described activated carbon. Another embodiment of the present invention provides a shaped article, which includes the above-described activated carbon. Another embodiment of the present invention provides a method for producing activated carbon, which includes activating a carbonaceous material, to obtain an activated carbonaceous material; and contacting the activated carbonaceous material with an acid, to obtain the activated carbon.
    Type: Grant
    Filed: November 16, 2000
    Date of Patent: July 8, 2003
    Assignees: Kuraray Co., Ltd., Kuraray Chemical Co., Ltd.
    Inventors: Hideharu Iwasaki, Nozomu Sugo, Shushi Nishimura, Yoshifumi Egawa, Hajime Aoki
  • Patent number: 6573212
    Abstract: A new shaped activated carbon and the method of its manufacture are disclosed. The invention resides in the crosslinking of a polymeric cellulose, such as sodium carboxymethylcellulose (CMC), within the carbon bodies after they are shaped, employing the CMC as a binder for the activated carbon. The approach to attain product mechanical strength and water stability by crosslinking rather than high temperature heat treatment is not obvious from the prior art teaching. The crosslinking reaction occurs at temperatures below 270° C. In addition, this new binder technology produces shaped carbon bodies having key properties beyond the best level that has been accomplished with other binders.
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: June 3, 2003
    Assignee: MeadWestvaco Corporation
    Inventors: Peter D. A. McCrae, Tiejun Zhang, David R. B. Walker