Of Group I (i.e., Alkali, Ag, Au Or Cu) Patents (Class 502/184)
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Publication number: 20100210453Abstract: A method for the preparation of materials comprises the steps of: a) taking a first material comprising a compound of a first metal or of a first metal alloy, b) inserting said first material into an electrochemical cell as a first electrode, the electrochemical cell including a second electrode including a second metal different from a metal incorporated in the first material and an electrolyte adapted to transport the second metal to the first electrode and insert it into the first material by a current flowing in an external circuit resulting in the formation of a compound of the second metal in the first electrode material, the method being characterized by the step of treating the first electrode material after formation of the compound of the second metal to chemically remove at least some of the compound of the second metal to leave a material with a nanoporous structure.Type: ApplicationFiled: March 29, 2007Publication date: August 19, 2010Applicant: Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e.V.Inventors: Yong-Sheng Hu, Yu-Guo Guo, Palani Balaya, Joachim Maier, Sarmimala Hore
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Patent number: 7776782Abstract: A textured catalyst having a hydrothermally-stable support, a metal oxide and a catalyst component is described. Methods of conducting aqueous phase reactions that are catalyzed by a textured catalyst are also described. The invention also provides methods of making textured catalysts and methods of making chemical products using a textured catalyst.Type: GrantFiled: January 8, 2007Date of Patent: August 17, 2010Assignee: Battelle Memorial InstituteInventors: Todd Werpy, John G. Frye, Jr., Yong Wang, Alan H. Zacher
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Publication number: 20100197481Abstract: Use of physical vapor deposition methodologies to deposit nanoscale gold on activating support media makes the use of catalytically active gold dramatically easier and opens the door to significant improvements associated with developing, making, and using gold-based, catalytic systems. The present invention, therefore, relates to novel features, ingredients, and formulations of gold-based, heterogeneous catalyst systems generally comprising nanoscale gold deposited onto a nanoporous support.Type: ApplicationFiled: April 8, 2010Publication date: August 5, 2010Inventors: LARRY A. BREY, Thomas E. Wood, Gina M. Buccellato, Marvin E. Jones, Craig S. Chamberlain, Allen R. Siedle
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Publication number: 20100190639Abstract: A metal oxide-carbon composite includes a carbon aerogel with an oxide overcoat. The metal oxide-carbon composite is made by providing a carbon aerogel, immersing the carbon aerogel in a metal oxide sol under a vacuum, raising the carbon aerogel with the metal oxide sol to atmospheric pressure, curing the carbon aerogel with the metal oxide sol at room temperature, and drying the carbon aerogel with the metal oxide sol to produce the metal oxide-carbon composite. The step of providing a carbon aerogel can provide an activated carbon aerogel or provide a carbon aerogel with carbon nanotubes that make the carbon aerogel mechanically robust.Type: ApplicationFiled: January 27, 2010Publication date: July 29, 2010Inventors: Marcus A. Worsley, Thomas Yong-Jin Han, Joshua D. Kuntz, Octavio Cervantes, Alexander E. Gash, Theodore F. Baumann, Joe H. Satcher, JR.
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Publication number: 20100178226Abstract: The invention relates to a method for oxidizing methane, including passing a gaseous, methane-containing mixture over a catalyst, wherein a carrier with a substrate surface consists substantially of titanium dioxide with a combination of platinum and palladium thereon, in the presence of molecular oxygen, and to a catalyst suitable thereto.Type: ApplicationFiled: August 29, 2007Publication date: July 15, 2010Applicant: Technische Universiteit DelftInventors: Michiel Makkee, Xiao Ding Xu
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Publication number: 20100177462Abstract: High-surface-area carbon nanostructures coated with a smooth and conformal submonolayer-to-multilayer thin metal films and their method of manufacture are described. The preferred manufacturing process involves the initial oxidation of the carbon nanostructures followed by immersion in a solution with the desired pH to create negative surface dipoles. The nanostructures are subsequently immersed in an alkaline solution containing non-noble metal ions which adsorb at surface reaction sites. The metal ions are then reduced via chemical or electrical means and the nanostructures are exposed to a solution containing a salt of one or more noble metals which replace adsorbed non-noble surface metal atoms by galvanic displacement. Subsequent film growth may be performed via the initial quasi-underpotential deposition of a non-noble metal followed by immersion in a solution comprising a more noble metal.Type: ApplicationFiled: February 22, 2010Publication date: July 15, 2010Applicant: Brookhaven Science Associates, LLCInventors: Radoslav Adzic, Alexander Harris
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Patent number: 7727931Abstract: Use of physical vapor deposition methodologies to deposit nanoscale gold on activating support media makes the use of catalytically active gold dramatically easier and opens the door to significant improvements associated with developing, making, and using gold-based, catalytic systems. The present invention, therefore, relates to novel features, ingredients, and formulations of gold-based, heterogeneous catalyst systems generally comprising nanoscale gold deposited onto a nanoporous support.Type: GrantFiled: September 23, 2004Date of Patent: June 1, 2010Assignee: 3M Innovative Properties CompanyInventors: Larry A. Brey, Thomas E. Wood, Gina M. Buccellato, Marvin E. Jones, Craig S. Chamberlain, Allen R. Siedle
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Publication number: 20100130774Abstract: This invention relates to the field of heterogeneous catalysis, and more particularly to oxidation catalysts including carbon supports having deposited thereon a noble metal and one or more optional promoters and to methods for their preparation. The invention further relates to the field of heterogeneous catalytic oxidation reactions, including the preparation of secondary amines by the catalytic oxidation of tertiary amines, such as the oxidation of an N-(phosphonomethyl)iminodiacetic acid to produce an N-(phosphonomethyl)glycine product.Type: ApplicationFiled: September 15, 2005Publication date: May 27, 2010Applicant: MONSANTO TECHNOLOGY LLCInventors: Kam-To Wan, Mark A. Leiber, Kerry Brethauer, Jingyue Liu
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Publication number: 20100130788Abstract: The invention relates to a process for preparing aromatic amines by catalytic hydrogenation of the corresponding nitro compounds, in particular for preparing toluenediamine by hydrogenation of dinitrotoluene, wherein hydrogenation catalysts in which a mixture of nickel, palladium and an additional element selected from the group consisting of cobalt, iron, vanadium, manganese, chromium, platinum, iridium, gold, bismuth, molybdenum, selenium, tellurium, tin and antimony is present as active component on a support are used.Type: ApplicationFiled: May 5, 2008Publication date: May 27, 2010Applicant: BASF SEInventors: Joana Coelho Tsou, Ekkehard Schwab, Petr Kubanek, Wolfgang Mackenroth, Steffen Oehlenschlaeger, Hartwig Voss, Sameul Neto
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Publication number: 20100129728Abstract: An alloy catalyst for oxygen reduction reaction in a polymer electrolyte membrane fuel cell, comprising at least Pd, Co, and Au, wherein each content of Pd, Co, and Au satisfies 20 atomic %?Pd<70 atomic %, 30 atomic %?Co<70 atomic %, and 0 atomic %<Au?30 atomic %.Type: ApplicationFiled: October 5, 2006Publication date: May 27, 2010Inventors: Isao Morimoto, Nobuhiro Okada, Fujito Yamaguchi, Karen Marie Brace, Christopher Edward Lee, Brian Elliot Hayden
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Patent number: 7700521Abstract: The present invention is directed to a composition for use as a catalyst in, for example, a fuel cell, the composition comprising platinum and copper, wherein the concentration of platinum is greater than 50 atomic percent and less than about 80 atomic percent, and further wherein the composition has a particle size which is less than 35 angstroms. The present invention is further directed to various methods for preparing such a composition.Type: GrantFiled: August 18, 2004Date of Patent: April 20, 2010Assignees: Symyx Solutions, Inc., Honda Giken Kogyo Kabushiki KaishaInventors: Daniel M. Giaquinta, Peter Strasser, Alexander Gorer, Martin Devenney, Hiroyuki Oyanagi, Kenta Urata, Hiroichi Fukuda, Keith James Cendak, Konstantinos Chondroudis
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Publication number: 20100088951Abstract: Systems, catalysts, and methods are provided for transforming carbon based material into synthetic mixed alcohol fuel.Type: ApplicationFiled: July 17, 2009Publication date: April 15, 2010Applicant: PIONEER ASTRONAUTICSInventors: Emily Bostwick White, Cherie Wilson, Mark Berggren, Robert M. Zubrin
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Patent number: 7687428Abstract: A method of preparing carbon-loaded, gold-based nanoparticle catalysts useful as anode catalysts for the electrocatalytic methanol oxidation reaction (MOR) as well as the oxygen reduction reaction (ORR). AumPtnM100-m-n catalysts may be prepared by either a two-phase protocol or by a thermal decomposition/reduction protocol. The prepared nanoparticles having different bimetallic ratios are assembled on carbon black support materials and activated by thermal treatment. This approach provides good control of nanoparticle size, composition and/or surface properties. Electrocatalytic MOR activities of the prepared and activated AuPt nanoparticle provided in accordance with the methods of the invention are present in both acidic and alkaline electrolytes.Type: GrantFiled: March 29, 2006Date of Patent: March 30, 2010Assignee: The Research Foundation of the State University of New YorkInventors: Chuan-Jian Zhong, Jin Luo, Nancy N. Kariuki, Linyang Wang, Peter Njoki, Derrick Mott
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Publication number: 20100056364Abstract: A process for hydrogenating an organic compound which has at least one carbonyl group, in which the organic compound is hydrogenated in the presence of a shaped article which contains (i) an oxidic material comprising copper oxide, aluminum oxide and lanthanum oxide, and (ii) powdered metallic copper, copper flakes, powdered cement, graphite or a mixture thereof, is provided.Type: ApplicationFiled: October 29, 2009Publication date: March 4, 2010Applicant: BASF AktiengesellschaftInventors: Sylvia HUBER-DIRR, Michael Hesse, Andrea Haunert, Henrik Junicke
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Patent number: 7670985Abstract: The invention provides an activated carbon supported cobalt based catalyst for directly converting of synthesis gas to mixed linear alpha-alcohols and paraffins, comprising cobalt, an activated carbon carrier, a metal promoter which is at least one selected from the group consisting of a zirconium component, a lanthanum component, a cerium component, a chromium component, a vanadium component, a titanium component, a manganese component, a rhenium component, a potassium component, a ruthenium component, a magnesium component and a mixture thereof, wherein the cobalt and the promoter are deposited on the activated carbon carrier or substantially uniformly dispersed therein, and the metal promoter is present in the form of a metal, an oxide or a combination thereof.Type: GrantFiled: August 9, 2007Date of Patent: March 2, 2010Assignees: Dalian Institute of Chemical Physics, Chinese Academy of Sciences, CNOOC New Energy Investment Co., Ltd.Inventors: Yunjie Ding, Hejun Zhu, Tao Wang, Guiping Jiao, Yuan Lv
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Patent number: 7666812Abstract: An improved gas diffusion electrode composed of a perovskite-type oxide dispersed in a mixture of carbon black and a hydrophobic binder polymer. An improved catalyst for use in the electrochemical reduction of oxygen comprising a perovskite-type compound having alpha and beta sites, and having a greater molar ratio of cations at the beta site. A particularly good reduction catalyst is a neodymium calcium manganite. An improved method of dispersing the catalysts with carbon in a reaction layer of the electrode improves performance of the electrode and the oxygen reduction process. This is provided by adding carbon black to an aqueous solution of metal salts before it is heated to a gel and then to a char and then calcined. Optionally, a quantity of the desired oxide catalyst can be premixed with a portion the carbon before adding the carbon to an aqueous solution of the metal salts to be heated.Type: GrantFiled: August 10, 2007Date of Patent: February 23, 2010Assignee: Ceramatec, Inc.Inventors: John Howard Gordon, Hachiya Toshinori, Shekar Balagopal, Sai Bhavaraju
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Patent number: 7666809Abstract: Disclosed is an electrode catalyst for fuel cells, achieving enhanced utilization efficiency of the catalyst. Also disclosed are an electrode for fuel cells by use of the catalyst and a fuel cell. The electrode catalyst for fuel cells is featured in that a compound having at least one functional group and at least one proton-accepting group in the molecule is adsorbed onto a metal catalyst, and the functional group being partially or wholly constituted of a sulfur element or a nitrogen element as its constituent atoms.Type: GrantFiled: November 17, 2005Date of Patent: February 23, 2010Assignee: Konica Minolta Holdings, Inc.Inventors: Takato Chiba, Takayuki Suzuki
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Patent number: 7662741Abstract: The present invention relates to a process for the preparation of highly active silver deposited on carbon covered alumina catalyst, in controlling the microorganism in water.Type: GrantFiled: March 31, 2006Date of Patent: February 16, 2010Assignee: Council of Scientific and Industrial ResearchInventors: Kamaraju Sheetha Rama Rao, Bussi David Raju, Aytam Hari Padmasri, Sivakumar Vasireddy, Naga Ratnakar Adapa, Seetharamulu Podila, Shashikala Veldurthi, Mallanna Nagaraja Bhari, Sanapureddy Sreevardhan Reddy, Ponnapalli Nageswara Sarma, Katuri Krishna Prasad, Reddy Venkata Mohan Srinivasula
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Patent number: 7659227Abstract: Embodiments of the present invention provide catalysts for production of hydrogen from methanol. In an embodiment, a Cu/Zn catalyst may be promoted by Zr and/or Ce, in addition to, in embodiments, Pd or another noble metal. In an embodiment, a chemical composition may have a Cu/Zn base catalyst with a promoter element of Ce, Zr, and/or Pd or another noble metal. Methods of producing hydrogen using such catalysts are also provided.Type: GrantFiled: May 22, 2007Date of Patent: February 9, 2010Assignee: University of Notre Dame du LacInventor: Eduardo Wolf
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Publication number: 20100008840Abstract: The present invention relates to a novel method for preparing a new type of catalyst for the oxidation of CO in a reactant gas or air. The method provides the preparation of a catalyst having nano-sized metal particles and a capping agent deposited on a solid support. The size and distribution of the metal particles can be easily controlled by adjusting reaction condition and the capping agent used. The catalyst prepared has high activity at low temperature toward selective oxidation of CO and is stable over an extended period of time. The catalyst can be used in air filter devices, hydrogen purification processes, automotive emission control devices (decomposition of NOx, x is the integer 1 or 2), F-T synthesis, preparation of fuel-cell electrode, photocatalysis and sensors.Type: ApplicationFiled: November 13, 2006Publication date: January 14, 2010Applicant: Agency For Science, Technology and ResearchInventors: Ziyi Zhong, Jianyi Lin
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Publication number: 20100004119Abstract: Sorbents comprising activated carbon particles, sulfur, and metal catalyst. The sorbents may be used, for example, for the removal of a contaminant, such as mercury, from a fluid stream.Type: ApplicationFiled: July 3, 2008Publication date: January 7, 2010Inventors: Kishor Purushottam Gadkaree, Anbo Liu
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Publication number: 20100004121Abstract: The present invention is related to a short carbon nanotube for a catalyst support. In particular, the short carbon nanotube may be opened at both ends, a length of less than about 300 nm, and an aspect ratio in the range of about 1 to about 15. The short carbon nanotube has a broad surface area and better electric conductivity and is opened at both ends, thereby impregnating a metallic catalyst into the inner side of the carbon nanotube. Also, a catalyst impregnated carbon nanotube has a broad effective specific surface area, and thus, has an improved efficiency of catalyst utilization, can reduce an amount of the catalyst used and can efficiently diffuse a fuel. Accordingly, when catalyst impregnated carbon nanotube is used in a fuel cell, etc., improvements can be made in the pricing, power density of an electrode, and energy density of a fuel cell.Type: ApplicationFiled: January 6, 2005Publication date: January 7, 2010Inventors: Hyuk Chang, Chan-ho Pak, Jian Nong Wang
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Publication number: 20090291845Abstract: A process is described for converting a precatalyst which comprises an inert support, an organic carbon source and a multimetal oxide comprising silver and vanadium to a gas phase oxidation catalyst which comprises the inert support and a catalytically active silver vanadium oxide bronze, by treating the precatalyst thermally at a temperature of at least 350° C. in a gas atmosphere which comprises less than 10% by volume of oxygen, wherein, before the thermal treatment, the amount of the carbon source in the precatalyst is adjusted to a value below a critical amount The carbon content is reduced by burning-off at a temperature of from 80 to 200° C. in an oxygenous atmosphere with decomposition of a portion of the carbon source. The catalysts obtained serve for the gas phase partial oxidation of aromatic hydrocarbons to aldehydes, carboxylic acids and/or carboxylic anhydrides.Type: ApplicationFiled: December 20, 2006Publication date: November 26, 2009Applicant: BASF SEInventors: Samuel Neto, Hartmut Hibst, Frank Rosowski, Sebastian Storck, Jürgen Zühlke
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Publication number: 20090286675Abstract: The present invention relates to a method for continuous production of carbon nanotubes in a nano-agglomerate fluidized bed, which comprises the following steps: loading transition metal compounds on a support, obtaining supported nanosized metal catalysts by reducing or dissociating, catalytically decomposing a carbon-source gas, and growing carbon nanotubes on the catalyst support by chemical vapor deposition of carbon atoms. The carbon nanotubes are 4˜100 nm in diameter and 0.5˜1000 ?m in length. The carbon nanotube agglomerates, ranged between 1˜1000 ?m, are smoothly fluidized under 0.005 to 2 m/s superficial gas velocity and 20-800 kg/m3 bed density in the fluidized-bed reactor. The apparatus is simple and easy to operate, has a high reaction rate, and it can be used to produce carbon nanotubes with high degree of crystallization, high purity, and high yield.Type: ApplicationFiled: March 9, 2009Publication date: November 19, 2009Applicant: Tsinghua UniversityInventors: Fei Wei, Yao Wang, Guohua Luo, Hao Yu, Zhifei Li, Weizhong Qian, Zhanwen Wang, Yong Jin
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Patent number: 7618915Abstract: A method of producing a composite carbon catalyst is generally disclosed. The method includes oxidizing a carbon precursor (e.g., carbon black). Optionally, nitrogen functional groups can be added to the oxidized carbon precursor. Then, the oxidized carbon precursor is refluxed with a non-platinum transitional metal precursor in a solution. Finally, the solution is pyrolyzed at a temperature of at least about 500° C.Type: GrantFiled: May 8, 2007Date of Patent: November 17, 2009Inventors: Branko N. Popov, Nalini Subramanian, Hector R. Colon-Mercado
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Patent number: 7615508Abstract: A cathode for an air recovery alkaline battery is disclosed. The cathode contains at least about 60% by weight MnO2 and at least about 2% by weight of a hydrophobic polymer; the MnO2 consists essentially of electrochemically synthesized MnO2.Type: GrantFiled: May 8, 2007Date of Patent: November 10, 2009Assignee: The Gillette CompanyInventors: Alexander Kaplan, Thomas Kelly, Viet H. Vu
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Publication number: 20090233789Abstract: Disclosed herein, without limitation, are activated carbon honeycomb catalyst beds for removing mercury and other toxic metals from flue gas of a coal combustion system. The activated carbon honeycomb can for example removal greater than 90% mercury from flue gas with a simple design and without adding material to the flue gas. Also disclosed herein, and without limitation, are methods for manufacturing the disclosed honeycomb catalyst beds.Type: ApplicationFiled: May 21, 2009Publication date: September 17, 2009Inventors: Kishor Purushottam Gadkaree, Youchun Shi
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Publication number: 20090220413Abstract: Provided is a novel catalyst for methane steam reformation which enables a highly efficient production of hydrogen at a lower reaction temperature of lower than 500° C. without the need for a high temperature condition of a conventional temperature of 500° C. or higher, actually as high as 700 to 800° C. by use of a catalyst for methane steam reformation that is characterized in supporting one kind or more of noble metals or one kind or more of each of noble metals and lanthanide metals in a microporous carbon material, and a method of producing hydrogen using the catalyst.Type: ApplicationFiled: June 30, 2006Publication date: September 3, 2009Inventors: Iijima Sumio, Masako Yudasaka, Katsuyuki Murata
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Publication number: 20090192030Abstract: A polymetallic nanoparticle alloy having enhanced catalytic properties including at least one noble metal and at least one base metal, where the noble metal is preferentially dispersed near the surface of the nanoparticle and the base metal modifies the electronic properties of the surface disposed noble metal. The polymetallic nanoparticles having application as a catalyst when dispersed on a carbon substrate and in particular applications in a fuel cell. In various embodiments a bimetallic noble metal-base metal nanoparticle alloy may be used as an electrocatalyst offering enhanced ORR activity compared to the monometallic electrocatalyst of noble metal.Type: ApplicationFiled: January 28, 2009Publication date: July 30, 2009Inventors: Deborah J. Myers, Xiaoping Wang, Nancy N. Kariuki
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Publication number: 20090165380Abstract: Particulate compositions are described comprising an intimate mixture of a petroleum coke and an alkali metal gasification catalyst, where the alkali metal gasification catalyst comprises a combination of an alkali metal hydroxide and one or more other alkali metal compounds are loaded onto coke for gasification in the presence of steam to yield a plurality of gases including methane and at least one or more of hydrogen, carbon monoxide, and other higher hydrocarbons are formed. Processes are also provided for the preparation of the particulate compositions and converting the particulate composition into a plurality of gaseous products.Type: ApplicationFiled: December 23, 2008Publication date: July 2, 2009Applicant: GREATPOINT ENERGY, INC.Inventors: Francis S. Lau, Earl T. Robinson
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Patent number: 7550611Abstract: High temperature treatment of graphite nanofibers to convert the materials to carbon nanochips and thereby enhance their performance as support media for metal catalytic particles. The carbon nanochips are suitable for supports for metal and metal oxide particles to catalyze chemical reactions such as oxidation, hydrogenation, oxidative-dehydrogenation, and dehydrogenation. In this regard, they function as a new type of highly conductive catalyst support media.Type: GrantFiled: September 29, 2004Date of Patent: June 23, 2009Assignee: Catalytic Materials, LLCInventors: Xuejun Xu, R. Terry K. Baker
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Publication number: 20090148374Abstract: The invention relates to a process and catalyst for the oxidative desulfurization of hydrocarbonaceous oil. In one aspect, solid carbon materials are provided having stable sulfur trioxide and nitrogen dioxide oxidative species on the surface thereof. Such materials are useful in the production of low sulfur hydrocarbon feedstocks and in the removal of refractory sulfur compounds.Type: ApplicationFiled: November 24, 2008Publication date: June 11, 2009Applicant: SAUDI ARABIAN OIL COMPANYInventor: Ki-Hyouk Choi
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Patent number: 7538062Abstract: An electroless deposition method of depositing metal nanoparticles onto conductive substrates such as carbon nanotubes is provided. The carbon nanotubes are provided on a support comprising a metal substrate and then immersed in an aqueous solution containing metal ions. The metal substrate metal has a redox potential which is lower than that of the metal ions in solution such that the metal ions are readily reduced into metal nanoparticles on the carbon nanotubes.Type: GrantFiled: September 11, 2006Date of Patent: May 26, 2009Assignee: University of DaytonInventors: Liming Dai, Liangti Qu
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Publication number: 20090131247Abstract: The invention provides a method for manufacturing a highly dispersed carbon supported metal catalyst, including charging a carbon support and a dispersing agent in water. The carbon support is evenly dispersed in water with an average diameter of 10 nm to 2000 nm and a specific surface area of 50 m2/g to 1500 m2/g. A metal salt of Pd, Pt, or combinations thereof is formed on the carbon support surface and then reduced to a valance state less than (IV).Type: ApplicationFiled: April 1, 2008Publication date: May 21, 2009Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Man-Yin Lo, Hsi-Yen Hsu, Yan Zhi Chen, Li Duan Tsai, Yu Min Peng
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Patent number: 7534737Abstract: A selective hydrogenation process and a layered catalyst composition for use in the selective hydrogenation process are disclosed. The process is useful for the selective hydrogenation of diolefins having from about 8 to about 19 carbon atoms per molecule to monoolefins.Type: GrantFiled: June 12, 2008Date of Patent: May 19, 2009Assignee: UOP LLCInventor: Gregory J. Gajda
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Patent number: 7507844Abstract: A carrier and a catalyst useful for the oxidation of ethylene to ethylene oxide which uses the carrier. The carrier is composed of an inert, refractory solid support such as alpha alumina and has a surface exhibiting a plurality of nanometer scale protrusions projecting outwardly from the surface, and has a catalytically effective amount of silver thereon.Type: GrantFiled: May 9, 2005Date of Patent: March 24, 2009Assignee: SD Lizenzverwertungsgesellschaft mbH & Co. KGInventor: Serguei Pak
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Patent number: 7491675Abstract: Nanocomposite copper-ceria catalysts are provided, which comprise copper oxide nanoparticles, copper nanoparticles, or a mixture thereof combined with ceria nanoparticles. Methods for making such catalysts are also provided, which involve the steps of (i) combining ceria nanoparticles in an aqueous suspension with copper 2,4-pentanedionate to form a slurry; (ii) heating the slurry formed in step (i) under an inert gas atmosphere or an oxygen-argon atmosphere, at a temperature and for a time sufficient to cause decomposition of the copper 2,4-pentanedionate to form copper nanoparticles and/or copper oxide nanoparticles that are combined with the ceria nanoparticles; and (iii) optionally, subjecting the product formed in step (ii) to a heat treatment process under conditions effective to convert at least some of the copper nanoparticles to copper oxide nanoparticles.Type: GrantFiled: September 28, 2004Date of Patent: February 17, 2009Assignee: Philip Morris USA Inc.Inventors: Sarojini Deevi, Sohini PalDey
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Patent number: 7485390Abstract: The present invention is directed to a method for forming combinatorial libraries comprising arrays of materials prepared by depositing a metal species on a support for use as catalysts, such as electrocatalysts. The invention is also directed to combinatorial libraries comprising an array of such metal-containing supported catalysts. These catalyst-containing libraries are particularly well-suited for use in conducting combinatorial research investigations, in particular with respect to electrocatalysts for fuel cells.Type: GrantFiled: February 12, 2004Date of Patent: February 3, 2009Inventors: Martin Devenney, Konstantinos Chondroudis, Alexander Gorer
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Publication number: 20090012335Abstract: Disclosed herein is a process for the preparation of fluorine-containing olefins comprising contacting a chlorofluoroalkene with hydrogen in the presence of a catalyst at a temperature sufficient to cause replacement of the chlorine substituents with hydrogen. Also disclosed is a catalyst composition for the hydrodechlorination of chlorofluoroalkenes comprising copper metal deposited on a support.Type: ApplicationFiled: June 27, 2008Publication date: January 8, 2009Applicant: E.I.du pont de Nemours and CompanyInventors: Mario Joseph Nappa, Ekaterina N. Swearingen
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Publication number: 20080318768Abstract: This invention relates to the field of heterogeneous catalysis, and more particularly to catalysts including carbon supports having formed thereon compositions which comprise a transition metal in combination with nitrogen and/or carbon. The invention further relates to the fields of catalytic oxidation, including the preparation of secondary amines by the catalytic oxidation of tertiary amines.Type: ApplicationFiled: May 21, 2008Publication date: December 25, 2008Applicant: MONSANTO TECHNOLOGY LLCInventors: James P. Coleman, Martin P. McGrath, Fuchen Liu, Juan P. Arhancet
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Publication number: 20080314755Abstract: A layered electrocatalyst for oxidizing ammonia, ethanol, or combinations thereof, comprising: a carbon support integrated with a conductive metal; at least one first metal plating layer at least partially deposited on the carbon support, wherein the at least one first metal plating layer is active to OH adsorption and inactive to a target species, and wherein the at least one first metal plating layer has a thickness ranging from 10 nanometers to 10 microns; and at least one second metal plating layer at least partially deposited on the at least one first metal plating layer, wherein the at least one second metal plating layer is active to the target species, and wherein the at least one second metal plating layer has a thickness ranging from 10 nanometers to 10 microns, forming a layered electrocatalyst.Type: ApplicationFiled: May 4, 2008Publication date: December 25, 2008Applicant: Ohio UniversityInventor: Gerardine G. Botte
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Patent number: 7465692Abstract: A reactive medium comprising reactive particles having a surface area of about 300 m2/gm to about 1500 m2/gm and a size in the range of from about 0.10 mm to about 4 mm. The reactive particles include particles of an inorganic material, including carbon, and active metal sites, including sodium bonded to the carbon. The reactive medium can remove impurities to trace levels and has a high capacity for contaminants.Type: GrantFiled: November 22, 2000Date of Patent: December 16, 2008Assignee: Pall CorporationInventors: Kurt E. Brown, William L. Murphy
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Publication number: 20080286546Abstract: A method for manufacturing a carbon composite is provided. The method includes providing a carbon-containing resin material having an appropriate concentration of catalyst particles. Thereafter, the resin material may be extruded through an aperture while being exposed to a high temperature range to permit polymerization of the extruded resin material. A subsequent exposure of the extruded resin material to another elevated temperature range causes carbon in the resin material to couple to the catalyst particles to promote carbon nanotube growth and transformation of the resin material to a reinforced composite material. Reinforced composite materials are also provided.Type: ApplicationFiled: March 8, 2007Publication date: November 20, 2008Inventors: David S. Lashmore, Peter L. Antoinette
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Publication number: 20080280751Abstract: The present teachings are directed toward a matrix containing nanosized metal components and carbon nanotubes, with the carbon nanotubes being produced in situ by the nanosized metal components upon the contacting of the nanosized metal components with a carbon source under conditions sufficient to produce the carbon nanotubes. Also disclosed are methods of producing the matrix containing the nanosized metal components and carbon nanotubes.Type: ApplicationFiled: March 16, 2007Publication date: November 13, 2008Applicant: Honda Motor Co., Ltd.Inventors: Avetik Harutyunyan, Elena Mora
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Publication number: 20080248945Abstract: After a titanium nitride (TiN) thin film is formed on a silicon substrate, cobalt (Co) fine particles and nickel (Ni) fine particles are deposited in a mixed state on the titanium nitride (TiN) thin film, and CNTs are sequentially grown from the cobalt (Co) fine particles and the nickel fine particles by varying growth conditions.Type: ApplicationFiled: April 7, 2008Publication date: October 9, 2008Applicant: FUJITSU LIMITEDInventor: Daiyu Kondo
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Patent number: 7422994Abstract: A composition for use as a catalyst in, for example, a fuel cell, the composition comprising platinum, copper and tungsten, or an oxide, carbide and/or salt of one or more of platinum, copper and tungsten, wherein the sum of the concentrations of platinum, copper and tungsten, or an oxide, carbide and/or salt thereof, is greater than 90 atomic percent.Type: GrantFiled: December 21, 2005Date of Patent: September 9, 2008Assignees: Symyx Technologies, Inc., Honda Giken Kogyo Kabushiki KaishaInventors: Konstantinos Chondroudis, Alexander Gorer, Peter Strasser, Martin Devenney, Qun Fan, Daniel M. Giaquinta, Keith James Cendak, Hiroyuki Oyanagi, Kenta Urata
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Publication number: 20080202923Abstract: The invention relates to a sulphide catalyst for electrochemical reduction of oxygen particularly stable in chemically aggressive environments such as chlorinated hydrochloric acid. The catalyst of the invention comprises a noble metal sulphide single crystalline phase supported on a conductive carbon essentially free of zerovalent metal and of metal oxide phases, obtainable by reduction of metal precursor salts and thio-precursors with a borohydride or other strong reducing agent.Type: ApplicationFiled: February 21, 2008Publication date: August 28, 2008Inventors: Andrea F. Gulla, Robert J. Allen
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Publication number: 20080207953Abstract: Process for hydrogenating an organic compound having at least one carbonyl group, in which the organic compound is contacted, in the presence of hydrogen, with a shaped body which is producible in a process in which (i) an oxidic material comprising copper oxide and aluminum oxide and at least one of the oxides of iron, lanthanum, tungsten, molybdenum, titanium, zirconium, tin or manganese, and if appropriate additionally tin oxide and/or manganese oxide, is provided, (ii) pulverulent metallic copper, copper flakes, pulverulent cement, graphite or a mixture thereof are added to the oxidic material, (iii) the mixture resulting from (ii) is shaped to a shaped body and (iv) the shaped body is treated with water or steam.Type: ApplicationFiled: July 6, 2006Publication date: August 28, 2008Applicant: BASF AktiengesellschaftInventors: Christophe Houssin, Henrik Junicke, Ulrich Muller
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Publication number: 20080176740Abstract: A new method for preparing a supported catalyst is herein provided. The supported catalyst comprises a carbon nanotube network structure containing metal catalysts. The metal catalyst may be loaded onto functionalized carbon nanotubes before forming the carbon nanotube network structure. Alternatively, the metal catalyst may be loaded onto the carbon nanotube network structures themselves.Type: ApplicationFiled: August 20, 2007Publication date: July 24, 2008Inventors: Jun Ma, David Moy, Alan Fischer, Robert Hoch
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Publication number: 20080132408Abstract: A carbon black monolith comprising a matrix comprising ceramic material and carbon black dispersed throughout the matrix and a method for making a carbon black monolith comprising extruding an extrudable mixture including a carbon black, a ceramic forming material, water, an extrusion aid, and a flux material. A carbon black monolith catalyst comprising a finished self-supporting carbon black monolith having at least one passage therethrough, and comprising a supporting matrix and carbon black dispersed throughout the supporting matrix and at least one catalyst precursor on the finished self-supporting carbon black monolith. A method for making and a method for use of such a carbon black monolith catalyst in catalytic chemical reactions are also disclosed.Type: ApplicationFiled: October 11, 2007Publication date: June 5, 2008Applicant: APPLIED TECHNOLOGY LIMITED PARTNERSHIPInventors: Robert L. Mitchell, Lee M. Mitchell, Joseph H. Keller, Jack H. L'Amoreaux, Miron Abramovici, Kon Jiun Lee