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Cataler Corporation patents


Recent patent applications related to Cataler Corporation. Cataler Corporation is listed as an Agent/Assignee. Note: Cataler Corporation may have other listings under different names/spellings. We're not affiliated with Cataler Corporation, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "C" | Cataler Corporation-related inventors


Fuel-cell electrode catalyst, and production method therefor

An object of the present invention is to provide a fuel-cell electrode catalyst in which a catalyst metal is uniformly supported on a support. This object can be achieved by a fuel-cell electrode catalyst comprising a support having pores and a catalyst metal uniformly supported on the support, wherein at least 80% of the support has a primary particle size within ±75% of the mean primary particle size of the support.. ... Cataler Corporation

Fuel-cell electrode catalyst, and production method therefor

An object of the present invention is to provide a fuel-cell electrode catalyst in which a catalyst metal is uniformly supported on a support. This object can be achieved by a fuel-cell electrode catalyst comprising a support having pores and a catalyst metal uniformly supported on the support, wherein at least 80% of the support has a primary particle size within ±75% of the mean primary particle size of the support.. ... Cataler Corporation

Fuel-cell electrode catalyst, and production method therefor

An object of the present invention is to provide a fuel-cell electrode catalyst in which a catalyst metal is uniformly supported on a support. This object can be achieved by a fuel-cell electrode catalyst comprising a support having pores and a catalyst metal uniformly supported on the support, wherein at least 80% of the support has a primary particle size within ±75% of the mean primary particle size of the support.. ... Cataler Corporation

Exhaust gas purification device

An exhaust gas purification device includes: a wall-flow-structured base material having input-side cells, output-side cells, and a porous partition wall; and a catalyst layer formed inside the partition wall contacting the input-side cells or the output-side cells. The catalyst layer is formed in a region extending from the surface of the partition wall and covering at least 90% of the thickness of the partition wall, and is held by the surfaces of the inside pores of the partition wall in the region. ... Cataler Corporation

Exhaust gas purification catalyst

The problem of the present invention is to provide an exhaust gas purification catalyst which can exhibit sufficient purification performance under a high ga condition while having a resistance to stress such as high-temperature and poisonous substances. The present invention relates to an exhaust gas purification catalyst comprising two or more catalyst coating layers on a substrate, wherein a lower catalyst coating layer that is present lower with respect to an uppermost catalyst coating layer has a structure where a large number of voids are included and high-aspect-ratio pores having an aspect ratio of 5 or more account for a certain proportion or more of the whole volume of voids, thereby to improve gas diffusivity in the lower catalyst coating layer.. ... Cataler Corporation

Exhaust gas purification catalyst

The present invention is directed to address the following problem: in an exhaust gas purification catalyst comprising a dual catalyst of a combination of a startup catalyst and an underfloor catalyst, reduction in the gas diffusivity of the underfloor catalyst results in reduction in the use efficiency of a catalytic active site, resulting in reduction in purification performance. The present invention relates to an exhaust gas purification catalyst comprising a dual catalyst of a combination of a startup catalyst and an underfloor catalyst having a catalyst coating where a large number of voids are included, wherein high-aspect-ratio pores having an aspect ratio of 5 or more account for a certain rate or more of the whole volume of the voids, to thereby enhance the purification performance of the catalyst.. ... Cataler Corporation

Exhaust gas purification catalyst

When the amount of coating is increased in a two-layer catalyst or the like containing two noble metals in respective different layers, gas diffusivity in the catalyst and use efficiency of a catalytic active site are reduced to thereby reduce purification performance. In view of this, an organic fiber having a predetermined shape is used as a pore-forming material in formation of an uppermost catalyst coating layer of a multi-layer catalyst, to thereby form an uppermost catalyst coating layer having a high-aspect-ratio pore excellent in connectivity and therefore excellent gas diffusivity.. ... Cataler Corporation

Exhaust gas purifying catalyst and method for producing the same

An exhaust gas purifying catalyst with an excellent effect of suppressing deterioration due to aggregation of a noble metal catalyst during endurance at high temperature, and a production method therefor. The method for producing the exhaust gas purifying catalyst that has a porous carrier and a noble metal catalyst supported thereon includes: preparing the porous carrier that contains alumina-ceria-zirconia composite oxide particles and has physical property values, after subjected to baking at 900° c. ... Cataler Corporation

Exhaust gas purification catalyst

The present invention is directed to address the following problem: in an exhaust gas purification catalyst comprising a dual catalyst of a combination of a startup catalyst and an underfloor catalyst, reduction in the gas diffusivity of the startup catalyst results in reduction in the use efficiency of a catalytic active site, resulting in reduction in purification performance. The present invention relates to an exhaust gas purification catalyst comprising a dual catalyst of a combination of a startup catalyst having a catalyst coating where a large number of voids are included and an underfloor catalyst, wherein high-aspect-ratio pores having an aspect ratio of 5 or more account for a certain rate or more of the whole volume of the voids, to thereby enhance the purification performance of the catalyst.. ... Cataler Corporation

Catalyst for purifying exhaust gas

An catalyst for purifying exhaust gas comprising an ocs material that has sufficient heat resistance and achieves a favorable balance between the oxygen storage volume and the oxygen absorption/release rate includes an catalyst for purifying exhaust, which has a substrate and a catalyst coating layer formed on the substrate, wherein the catalyst coating layer comprises a ceria-zirconia-based composite oxide having a pyrochlore structure in an amount of 5 to 100 g/l based on the volume of the substrate, the ceria-zirconia-based composite oxide has a secondary particle size (d50) of 3 μm to 7 μm, and the ceria-zirconia-based composite oxide optionally contains praseodymium.. . ... Cataler Corporation

Exhaust gas purification catalyst

An exhaust gas purification catalyst capable of stably maintaining and exhibiting excellent catalytic performance includes a wall-flow-type substrate, a first catalytic layer and a second catalytic layer. The first catalytic layer is provided to an internal portion of a partition wall in contact with an entrance cell. ... Cataler Corporation

Exhaust gas cleaning catalyst

The exhaust gas cleaning catalyst according to the present invention is provided with a cylindrical substrate 10 and a catalyst coat layer 20 formed on the surface of the substrate 10. A ratio of the length l in the cylindrical axis direction of the substrate 10 and the diameter d of a cross section orthogonal to the cylindrical axis direction is denoted by (l/d)≦0.8. ... Cataler Corporation

Exhaust gas purification apparatus

A exhaust gas purification apparatus is provided with: a substrate having a wall-flow structure and including entry-side cells, exit-side cells, and a porous partition; a first catalyst region formed in small diameter pores having relatively small pore diameters among internal pores in the partition; and a second catalyst region formed in large diameter pores having relatively large pore diameters among the internal pores in the partition. The first catalyst region contains a support and any one or two species of precious metal selected from pt, pd, and rh loaded on the support, while the second catalyst region contains a support and any one or two species of precious metal selected from pt, pd, and rh loaded on the support and other than at least the precious metal present in the first catalyst region.. ... Cataler Corporation

Exhaust gas purifying catalyst

The object of the present invention is to provide an exhaust gas purifying catalyst that can achieve high purification performance while suppressing h2s emissions. The object is solved by an exhaust gas purifying catalyst in which the top layer of a catalyst coating layer comprises a ceria-zirconia composite oxide having a pyrochlore-type ordered array structure, in which the ceria-zirconia composite oxide contains at least one additional element selected from the group consisting of praseodymium, lanthanum, and yttrium at 0.5 to 5.0 mol % in relation to the total cation amount, and the molar ratio of (cerium+additional element):(zirconium) is within the range from 43:57 to 48:52.. ... Cataler Corporation

11/16/17 / #20170326527

Carbon porous body, production method thereof, ammonia adsorbent material, canister, and production method thereof

A carbon porous body has a micropore volume, calculated from an αs plot analysis of a nitrogen adsorption isotherm at a temperature of 77 k, of 0.1 cm3/g or less, the micropore volume being smaller than a mesopore volume calculated by subtracting the micropore volume from a nitrogen adsorption amount at a nitrogen relative pressure p/p0 of 0.97 on the nitrogen adsorption isotherm, wherein a nitrogen adsorption amount at a nitrogen relative pressure p/p0 of 0.5 on the nitrogen adsorption isotherm is within a range of 500 cm3 (stp)/g or less, and a nitrogen adsorption amount at a nitrogen relative pressure p/p0 of 0.85 on the nitrogen adsorption isotherm is within a range of 600 cm3 (stp)/g or more and 1100 cm3 (stp)/g or less.. . ... Cataler Corporation

10/26/17 / #20170304772

Exhaust gas purification device

The exhaust gas purification device is provided with a wall flow structure substrate that has an entry-side cell, an exit-side cell and a porous partition, first catalyst parts which are formed in small pores having a relatively small pore diameter among internal pores in the partition, and second catalyst parts which are formed in large pores having a relatively large pore diameter among the internal pores in the partition. The first catalyst parts and the second catalyst parts each contain a carrier and at least one type of noble metal from among pt, pd and rh supported on the carrier. ... Cataler Corporation

10/12/17 / #20170291163

Catalyst for exhaust gas purification

When sizes of particles supporting a catalyst metal remain relatively large but sizes of particles not supporting a catalyst metal are minimized among metal oxide particles included in a catalyst coating layer, it is possible to decrease a thickness of the catalyst coating layer while maintaining durability and improve gas diffusibility of the coating layer. Therefore, a thickness of the catalyst coating is decreased without decreasing durability and a catalyst can exhibit high exhaust gas purification performance even under high load conditions.. ... Cataler Corporation

09/28/17 / #20170274412

Apparatus for coating catalyst slurry

A coating apparatus includes: a supply frame for supplying slurry into channels from one end of a honeycomb substrate; and a blower for evacuating a wind box. An annular resistive member is attached to the circumference of the opening of the wind box, and the honeycomb substrate is arranged, with a spacer placed on the resistive member. ... Cataler Corporation

08/24/17 / #20170239646

Exhaust gas-purifying catalyst and exhaust gas-purifying catalyst material

An exhaust gas-purifying catalyst material includes first oxide particles having an average particle diameter dav of 1 μm to 95 μm and having an oxygen storage capacity, second oxide particles having an average particle diameter dav of 0.05 μm to 0.5 μm, containing a metal element, and having no oxygen storage capacity, precious metal particles, and acidic oxide particles. The material has a correlation coefficient ρ of 0.45 or more obtained using first characteristic x-ray intensity for the metal element contained in the second oxide particle, second characteristic x-ray intensity for an element other than oxygen contained in the acidic oxide particle, and third characteristic x-ray intensity for a precious metal element contained in the precious metal particle.. ... Cataler Corporation

07/27/17 / #20170209854

Exhaust gas-purifying catalyst

An exhaust gas-purifying catalyst includes a support and a catalytic metal as one or more precious metals supported by the support. The support includes a composite oxide having a composition represented by a general formula abαcβo3, wherein a represents one or more elements selected from the group consisting of lanthanum, neodymium, and yttrium, b represents iron or a combination of iron and aluminum, c represents one or more elements selected from the group consisting of iridium, ruthenium, tantalum, niobium, molybdenum, and tungsten, α and β each represents a numerical value within a range of more than 0 and less than 1, and α and β satisfy relational formulae of β>α and α+β≦1.. ... Cataler Corporation

07/13/17 / #20170200956

Electrode catalyst for fuel cell and method of producing electrode catalyst for fuel cell

An electrode catalyst for a fuel cell includes: a carbon support having a crystallite diameter of 2.0 nm to 3.5 nm at a carbon (002) plane, and having a specific surface area of 400 m2/g to 700 m2/g; and a catalyst metal containing platinum and a platinum alloy that are supported on the carbon support, and having a crystallite diameter of 2.7 nm to 5.0 nm at a platinum (220) plane. A ratio of a peak height of a spectrum of the platinum alloy in a form of an intermetallic compound with respect to a peak height of a spectrum of platinum is 0.03 to 0.08. ... Cataler Corporation

06/29/17 / #20170187047

Electrode catalyst for fuel cells

A means of inhibiting the occurrence of overvoltage in an electrode catalyst for fuel cells so as to substantially prevent reduction of fuel cell performance includes an anode electrode catalyst for fuel cells, which contains a carbon support having at least one pore having a pore size of 10 nm or less and a pore volume of 1.1 to 8.4 cm3/g and catalyst particles having particle sizes of 3.1 nm or less and supported by the carbon support so that the density of supported catalyst particles is 15% to 40% by mass.. . ... Cataler Corporation

05/04/17 / #20170122176

Exhaust gas purification device

The exhaust gas purification device according to the present invention includes a substrate of wall flow structure having a porous partition wall 16, and a catalyst layer held in internal pores of the partition wall 16. The catalyst layer contains, as a carrier, an osc material having oxygen storage capacity. ... Cataler Corporation

04/13/17 / #20170100709

Exhaust gas-purifying catalyst

An exhaust gas-purifying catalyst includes a support and a catalytic metal supported thereby. The support includes a composite oxide represented by ao.xb2-αcαo3, wherein a represents at least one of an element having a valence of 1 and an element having a valence of 2, b represents an element having a valence of 3, c represents one or more elements selected from iridium, ruthenium, tantalum, niobium, molybdenum, and tungsten, x represents a numerical value of 1 to 6, and a represents a numerical value greater than 0 and less than 2. ... Cataler Corporation

04/06/17 / #20170095798

Exhaust gas purification device

The exhaust gas purification device includes: a substrate of wall flow structure having inlet cells, outlet cells and a porous partition wall; and a catalyst layer provided in at least part of internal pores of the partition wall and held on the surface of the internal pores. The relationship between an average filling factor a of the catalyst layer held in pores having a pore diameter of 5 μm to less than 10 μm, an average filling factor b of the catalyst layer held in pores having a pore diameter of 10 μm to less than 20 μm and an average filling factor c of the catalyst layer held in pores having a pore diameter of 20 μm to less than 30 μm, among the internal pores of the partition wall 16 in which the catalyst layer is held, satisfies the following expression: a<b<c.. ... Cataler Corporation

01/19/17 / #20170014806

Exhaust gas purification catalyst

Provided is an exhaust gas purification catalyst with excellent durability against exhaust gas including a poisoning substance. The exhaust gas purification catalyst includes a porous substrate, a catalyst coating layer formed on the porous substrate, and a dummy coating layer formed on the outermost surface of the catalyst coating layer. ... Cataler Corporation

01/12/17 / #20170012295

Electrode catalyst for fuel cell, method for producing the same, and polymer electrolyte fuel cell using the same

A method for producing an electrode catalyst for a fuel cell is provided. The electrode catalyst includes a carbon support and a catalyst supported on the carbon support. ... Cataler Corporation








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