Entries |
Document | Title | Date |
20090124494 | Catalyst For Purifying Exhaust Gases and Exhaust-Gas Purification Controller Using the Same - A catalyst for purifying exhaust gases includes a support substrate, and a catalytic loading layer. The support substrate has an exhaust-gas flow passage. The catalytic loading layer is formed on a surface of the exhaust-gas flow passage, and is composed of a porous oxide support and a catalytic ingredient. The catalytic loading layer includes an Rh area, and an oxidizing area. On the Rh area, rhodium is loaded as the catalytic ingredient. The oxidizing area is formed on an exhaust-gas flow downstream side with respect to the Rh area. On the oxidizing area, a catalytic ingredient exhibiting an oxidizing activity at least is loaded. Also disclosed is an exhaust-gas purification controller using the same. | 05-14-2009 |
20090156396 | Exhaust Gas Purifying Catalyst and Method for Manufacturing the Same - An exhaust gas purifying catalyst has a front end high concentration coating area coated with a precious metal of a high concentration, and a rear end complex coating area coated at different precious metal densities according to the flowing amount of the exhaust gas and a method for manufacturing an exhaust gas purifying catalyst, which is capable of simultaneously coating a rear end complex coating area at different precious metal densities according to the flowing amount of the exhaust gas. The exhaust gas purifying catalyst includes a front end high concentration coating area coated with a precious metal of a high concentration and a rear end complex coating area having at least two areas of different coating densities on the rear side of the front end high concentration coating area. | 06-18-2009 |
20090163358 | Exhaust Gas Purifying Catalyst - In a three-way catalyst for purifying exhaust gases from internal combustion engines, scattering of bismuth components can be suppressed by employing a Bi—Ti composite oxide at a predetermined ratio. Accordingly, the effect of suppressing hydrogen sulfide emissions can be retained for a long time. This catalyst comprises a support substrate, and a catalyst layer formed on the support substrate and including a noble metal, a porous oxide, and a Bi—Ti composite oxide, and satisfies 0.3≦R≦1.5, where R is the molar ratio of the Bi content to the Ti content per unit volume of the support substrate. | 06-25-2009 |
20090264286 | PRODUCTION PROCESS OF COMPOSITE METAL OXIDE - A process for producing a composite metal oxide of an acidic metal oxide and a basic metal oxide, wherein the process comprises (a) providing an aqueous solution containing a colloidal particle of the acidic metal oxide and a salt of the basic metal, (b) adjusting the pH of the aqueous solution to a pH at which a part of the basic metal dissolves in the aqueous solution, the remaining of the basic metal precipitates as a hydroxide and has a positive zeta potential, and the colloidal particle of the acidic metal oxide is not dissolved and has a negative surface potential, and then maintaining this pH over a predetermined time to obtain a precursor of the composite metal oxide, and (c) drying and firing the precursor of the composite metal oxide obtained. | 10-22-2009 |
20090270251 | Cobalt compositions and methods of making the same - The present invention is directed to cobalt compounds and methods for making such metal oxide compositions, specifically, metal oxide compositions having high surface area, high metal/metal oxide content, and/or thermal stability with inexpensive and easy to handle materials. | 10-29-2009 |
20090286679 | SINGLE-WALLED CARBON NANOTUBE CATALYST - An activated catalyst capable of selectively growing single-walled carbon nanotubes when reacted with carbonaceous gas is provided. The activated catalyst is formed by reducing a catalyst that comprises a complex oxide. The complex oxide may be of formula A | 11-19-2009 |
20100069232 | AUTOMOBILE EXHAUST GAS PURIFICATION CATALYST AND METHOD OF PRODUCTION OF SAME - An automobile exhaust gas purification catalyst comprised of a support mainly comprised of ZrO | 03-18-2010 |
20100075841 | RHODIUM-LOADING SOLUTION AND RHODIUM CATALYST PREPARED USING THE SAME - A rhodium-loading solution characterized by comprising rhodium atoms and an organic base in a molar ratio of 1:0.5-35. | 03-25-2010 |
20100144520 | Catalysts - A process for producing a supported cobalt-based Fischer-Tropsch synthesis catalyst includes, in a first activation stage, treating a particulate catalyst precursor with a reducing gas, at a heating rate, HR1, until the precursor has reached a temperature, T | 06-10-2010 |
20100152035 | Catalysts - A process for producing a supported cobalt-based Fischer-Tropsch synthesis catalyst includes, in a first activation stage, treating a particulate catalyst precursor with a reducing gas, at a heating rate, HR1, until the precursor has reached a temperature, T | 06-17-2010 |
20110172090 | COMPOSITIONS AND METHODS FOR TREATING EXHAUST GASES - The present invention provides compositions, systems, and methods for achieving high efficiencies of nitrogen oxide (NOx) removal from exhaust gases while minimizing ammonia slip and sulfur dioxide oxidation. In one embodiment, a method of removing nitrogen oxides from an exhaust gas comprises providing a first catalyst layer, adding an ammonia-containing compound to the exhaust gas upstream of the first catalyst layer in excess of the stoichiometric equivalent of the nitrogen oxides in the exhaust gas, flowing the exhaust gas through the first catalyst layer, selectively catalytically decomposing ammonia in excess of the stoichiometric reaction equivalent of the nitrogen oxides in the exhaust gas, and catalytically reducing the nitrogen oxides by reaction with ammonia not selectively catalytically decomposed. | 07-14-2011 |
20110245075 | Catalyst for purification of automobile exhaust gas and method for manufacturing the same - A catalyst for purification of automobile exhaust gas comprising: a support and rhodium supported on the support in an atomic state, wherein an amount of the rhodium supported is 0.05 to 0.30% by mass relative to the total amount of the support and the rhodium, 50 at. % or more of the rhodium is supported on the support as two-atom clusters of rhodium, and an average distance between adjacent ones of the two-atom clusters is 1.0 nm or more. | 10-06-2011 |
20120083410 | PREPARATION OF HIGH ACTIVITY COBALT CATALYSTS, THE CATALYSTS AND THEIR USE - A method is provided for preparing a supported cobalt-containing catalyst having substantially homogeneously dispersed, small cobalt crystallites. The method comprises depositing cobalt nitrate on a support and then subjecting the support to a two-step decomposition protocol. In the first step, the support is heated in an oxygen-containing, substantially water-free atmosphere to about 160° C. to form an intermediate decomposition product. This intermediate product is then or hydrolyzed and reduced, or hydrolyzed, calcined and reduced. | 04-05-2012 |
20140162870 | MEMBRANE TEMPLATE SYNTHESIS OF MICROTUBE ENGINES - Methods, structures, devices and systems are disclosed for fabrication of microtube engines using membrane template electrodeposition. Such nanomotors operate based on bubble-induced propulsion in biological fluids and salt-rich environments. In one aspect, fabricating microengines includes depositing a polymer layer on a membrane template, depositing a conductive metal layer on the polymer layer, and dissolving the membrane template to release the multilayer microtubes. | 06-12-2014 |
20150133293 | METHOD FOR DEPOSITION OF NOBLE METAL NANOPARTICLES ON CATALYSTS TO PROMOTE SAME, AND THE COMPOSITIONS SO PRODUCED - A method for promoting the supported catalysts using noble metal nanoparticles. Different noble metal precursors are preferentially deposited onto the supported metal catalysts through Chemical vapor deposition (CVD), and compositions so produced. Further, the promoted catalyst is used for CO and CO | 05-14-2015 |
20160089658 | NANOSEGREGATED BIMETALLIC OXIDE ANODE CATALYST FOR PROTON EXCHANGE MEMBRANE ELECTROLYZER - A surface segregated bimetallic composition of the formula Ru | 03-31-2016 |
20160136619 | Cobalt Containing Bimetallic Zero PGM Catalyst for TWC Applications - Variations of bulk powder catalyst material including Cu—Co, Fe—Co, and Co—Mn spinel systems for ZPGM TWC applications are disclosed. The disclosed bulk powder catalyst samples include stoichiometric and non-stoichiometric Cu—Co, Fe—Co, and Co—Mn spinels on Pr | 05-19-2016 |