Patent application number | Description | Published |
20080318770 | Exhaust Gas-Purifying Catalyst - An exhaust gas-purifying catalyst ( | 12-25-2008 |
20090011932 | Exhaust Gas-Purifying Catalyst and Method of Manufacturing the Same - An object of the present invention is to provide an exhaust gas-purifying catalyst that is less prone to cause a decrease in its activity even when used at high temperatures in an atmosphere whose oxygen concentration is high. An exhaust gas-purifying catalyst of the present invention includes a composite oxide of alkaline-earth metal and aluminum, and platinum, wherein at least a part of the composite oxide and at least a part of the platinum forms a solid solution. | 01-08-2009 |
20090036300 | EXHAUST GAS-PURIFYING CATALYST - An exhaust gas-purifying catalyst ( | 02-05-2009 |
20090131251 | EXHAUST GAS-PURIFYING CATALYST - An exhaust gas-purifying catalyst is less prone to cause a decrease in its activity even when used in a high temperature atmosphere containing oxygen at a high concentration. The exhaust gas-purifying catalyst includes a composite oxide and Pd or a second solid solution of a composite and Rh and/or Pt. The first and second solid solutions have perovskite structure and are represented by ABO | 05-21-2009 |
20100004123 | OXYGEN STORAGE MATERIAL - An excellent oxygen storage capacity is achieved even in the case used for a long period of time under high temperature conditions. An oxygen storage material contains a first particle made of a composite oxide of cerium and zirconium or a composite oxide of cerium, a rare-earth element other than cerium and zirconium, a second particle including a composite oxide of a rare-earth element, an alkaline-earth element and zirconium, and a precious metal. A part of the precious metal forms a solid solution with the composite oxide included in the second particle. | 01-07-2010 |
20100204039 | Exhaust Gas-Purifying Catalyst - The exhaust gas-purifying catalyst includes at least one of a first composite oxide represented by a formula A(Al | 08-12-2010 |
20100298132 | EXHAUST GAS-PURIFYING CATALYST - An exhaust gas-purifying catalyst ( | 11-25-2010 |
20110207601 | EXHAUST GAS-PURIFYING CATALYST - An object of the present invention is to provide an exhaust gas-purifying catalyst containing a composite oxide catalyst and a refractory support and being less prone to cause a decrease in its activity even when used at high temperatures in an atmosphere with high oxygen concentration. An exhaust gas-purifying catalyst includes a composite oxide catalyst containing rare-earth element, alkaline-earth element and precious metal, a part of the rare-earth element and a part of the alkaline-earth element forming composite oxide, and the composite oxide and a part of the precious metal forming solid solution, and a refractory support supporting the composite oxide catalyst and including at least one of a first composite oxide represented by a general formula AB | 08-25-2011 |
Patent application number | Description | Published |
20090023580 | Catalyst Composition - An object of the present invention is to provide a catalyst composition containing a perovskite-type composite oxide which exhibits a satisfactory catalytic performance over a long time even in a high temperature atmosphere and has a stable quality in which Rh and/or Pt dissolves to form a solid solution at a high rate. | 01-22-2009 |
20090131252 | Catalyst Composition - To provide a catalyst composition containing a novel perovskite-type composite oxide which permits reversible entrance and exit of noble metals, a catalyst composition is prepared so as to contain a perovskite-type composite oxide represented by the general formula (1): | 05-21-2009 |
20090253574 | CATALYST - Provided is a catalyst with a noble metal efficiently supported on the surfacemost thereof. A composite oxide-containing layer is formed on a catalyst carrier so as to contain a perovskite-type composite oxide represented by the following general formula (1) and an other composite oxide, and a noble metal layer is further formed on the catalyst carrier so as to be supported on the surfacemost of the catalyst carrier by immersing the catalyst carrier formed with the composite oxide-containing layer in an aqueous noble metal salt solution to impregnate the catalyst carrier with the aqueous noble metal salt solution: | 10-08-2009 |
20100093526 | CATALYST COMPOSITION - Disclosed is a catalyst composition containing a composite oxide. The composite oxide contains a transition element (excluding platinum group elements) which is transformed into a solid solution in the composite oxide under an oxidizing atmosphere and is precipitated from the composite oxide under a reducing atmosphere. | 04-15-2010 |
20100227759 | Catalyst Composition - Provided is a catalyst composition capable of preventing decrease in catalytic activity due to grain growth of noble metal under high temperature or under change in oxidation reduction or further for long term use, and of achieving excellent catalytic activity over a long time. | 09-09-2010 |
20140271431 | METHOD FOR PURIFYING EXHAUST GAS - Provided is a method for purifying exhaust gas discharged from an internal combustion engine of a vehicle, using an exhaust gas purifying catalyst including a composite oxide represented by the following general formula AO.x(B | 09-18-2014 |