Patent application number | Description | Published |
20080230171 | METHOD FOR PRODUCING CATALYST-LAYER-SUPPORTING SUBSTRATE, METHOD FOR PRODUCING MEMBRANE-ELECTRODE ASSEMBLY AND METHOD FOR PRODUCING FUEL CELL - A method for producing a catalyst-layer-supporting substrate includes a lamination step of forming a laminate of metal catalyst layers and mixture layers on a substrate by repeating a first step and a second step plural times alternatively; and an acid treatment step of subjecting the laminate to an acid treatment, wherein the first step is a step of sputtering or depositing the metal catalyst layer that comprises a catalyst, and the second step is a step of sputtering or depositing the mixture layer of carbon and metal, the metal of the mixture layer including at least one element M selected from the group consisting of Sn, Al, Cu and Zn. | 09-25-2008 |
20080233465 | CATALYST, METHOD FOR PRODUCING CATALYST, MEMBRANE ELECTRODE ASSEMBLY, AND FUEL CELL - A catalyst is provided and includes fine catalyst particles of a composition represented by formula (1): Pt | 09-25-2008 |
20080241639 | CATALYST FOR POLYMER SOLID ELECTROLYTE FUEL CELL, MEMBRANE ELECTRODE ASSEMBLY, AND FUEL CELL - There is provided a catalyst for a fuel cell, which simultaneously realizes excellent catalytic activity and catalytic stability. The catalyst for a fuel cell comprises a fine particle of a metal represented by formula: | 10-02-2008 |
20080254974 | SUPPORTED CATALYST FOR FUEL CELL ELECTRODE - There is provided a supported catalyst which has an excellent catalyst performance and is stable against highly concentrated methanol. The supported catalyst for a fuel cell electrode comprises a carrier and a catalytic metal supported on the carrier, characterized in that the carrier is hydrophilic and a metal oxide capable of accelerating proton conduction is provided on at least a part of the surface of the hydrophilic carrier. | 10-16-2008 |
20090029219 | CATALYST, PROCESS FOR PRODUCING THE CATALYST, MEMBRANE ELECTRODE ASSEMBLY, AND FUEL CELL - This invention provides a highly active and stable catalyst, which is suitable for use in fuel cells while suppressing the amount of expensive noble metals used, i.e., platinum (Pt) and ruthenium (Ru), and a process for producing the catalyst, and a membrane electrode assembly and fuel cell using the catalyst. The catalyst comprises: an electro conductive support; and catalyst particles supported on the electro conductive support and having a composition represented by formula (1) | 01-29-2009 |
20090041935 | METHOD FOR CAUSING PARTICULATE BASE MATERIAL TO CARRY ALLOY PARTICLE - A method is for causing, within a decompression device, a particulate base material to carry an alloy particle having a particle size smaller than that of the particulate base material, the alloy particle containing at least two elements, the method including: forming the particulate base material by a chemical deposition; causing, in the decompression device, the particulate base material to carry a microparticle element; and forming the alloy particle by alloying the particulate base material and the microparticle element. | 02-12-2009 |
20090050484 | PROCESS FOR PRODUCING MEMBRANE ELECTRODE ASSEMBLY, AND FUEL CELL USING THE MEMBRANE ELECTRODE ASSEMBLY PRODUCED BY THE PROCESS - This invention provides a process for producing a membrane electrode assembly which has high and stable catalytic activity, and suppressed deterioration in catalytic activity during operation, and can prevent a deterioration in performance attributable to a structural factor of the membrane electrode assembly. The process comprises the step of, after the washing/removing step, drying the catalyst electrode in an atmosphere having a lower oxygen partial pressure than the air. The anode/cathode is a covered catalyst electrode having a structure formed by supporting/depositing a catalytically active material composed mainly of platinum/ruthenium subjected to the potential holding step, the washing/removing step, and the drying step, on a porous electroconductive carrier to cover at least a part of the porous electroconductive carrier with the ion conductive material. | 02-26-2009 |
20090061276 | ANODE FOR FUEL CELL AND FUEL CELL USING THE SAME - This invention provides an anode for a fuel cell which can realize stable output for a long period of time, and a fuel cell using the anode for a fuel cell. The anode for a fuel cell comprises an electrode catalyst layer, the electrode catalyst layer comprising a supported catalyst comprising an electroconductive carrier material and catalyst fine particles supported on the electroconductive carrier material, a proton conductive inorganic oxide, and a proton conductive organic polymer binder, the weight ratio between the supported catalyst (C) and the proton conductive inorganic oxide (SA), W | 03-05-2009 |
20090068503 | SPUTTERING APPARATUS - A sputtering apparatus includes: a supporting member that accommodates a base material; a first sputtering source containing platinum and having a rectangular shape; a second sputtering source containing an element different from that contained in the first sputtering source; a first magnet that is disposed to face the supporting member, the first magnet applying a first magnetic field near a surface of the first sputtering source in a first magnetic flux density; and a second magnet that is disposed to face the supporting member, the second magnet applying a second magnetic field near a surface of the second sputtering source in a second magnetic flux density, wherein at least one of the first magnetic flux density and the second magnetic flux density is configured to be variable. | 03-12-2009 |
20090081391 | METHANOL OXIDATION CATALYST - A methanol oxidation catalyst is provided, which includes nanoparticles having a composition represented by the following formula 1: | 03-26-2009 |
20090081528 | SUPPORTED CATALYST FOR FUEL CELL, AND ELECTRODE AND FUEL CELL USING THE SAME - The present invention provides a supported catalyst excellent both in catalytic performance and in stability against concentrated methanol. The supported catalyst is used for an electrode of a fuel cell, and comprises catalytic metal particles supported on supports. The supports have hydrophilicity. On at least one part of the surface of the hydrophilic supports, particles of metal oxide super-strong acid are also supported. The metal oxide super-strong acid particles promote proton conduction. | 03-26-2009 |
20090082198 | METHANOL OXIDATION CATALYST - A methanol oxidation catalyst is provided, which includes nanoparticles having a composition represented by the following formula (1): | 03-26-2009 |
20090202887 | CATALYST, ELECTRODE, MEMBRANE ELECTRODE ASSEMBLY AND FUEL CELL - Disclosed is a catalyst, including a catalyst particle containing at least one component selected from the group consisting of gold, platinum and an gold alloy, the gold alloy containing gold and at least one element selected from transition metal elements of the fourth period, fifth period and sixth period of the Periodic Table, and a catalyst carrier carrying the catalyst particle and containing a perovskite type oxide represented by general formula (1) given below: | 08-13-2009 |
20090246589 | FUEL CELL CATALYST, PROCESS FOR PREPARATION OF THE SAME, AND MEMBRANE ELECTRODE ASSEMBLY AND FUEL CELL EMPLOYING THE CATALYST - The present invention provides a catalyst having high activity and excellent stability, a process for preparation of the catalyst, a membrane electrode assembly, and a fuel cell. The catalyst of the present invention comprises an electronically conductive support and catalyst fine particles. The catalyst fine particles are supported on the support and are represented by the formula (1): Pt | 10-01-2009 |
20090247401 | METHANOL OXIDATION CATALYST - A methanol oxidation catalyst comprises a material of composition: | 10-01-2009 |
20090257931 | METHOD OF RECOVERING NOBLE METALS AND RECOVERING SYSTEM FOR NOBLE METALS - A recovering method is provided, which includes contacting a solid component containing Ru with an aqueous solution to create a Ru compound, and causing the Ru compound to selectively elute in the aqueous solution. The aqueous solution is formed of at least one selected from the group consisting of aqueous solutions A, B, C, D, and E. The aqueous solution A comprises an acid and formic acid, alcohols, aldehydes, a compound having a hemiacetal structure or a compound having an acetal structure. The aqueous solution B comprises an acid and a compound which creates, in the coexistence thereof with the acid, formic acid, alcohols, aldehydes, a compound having a hemiacetal structure or a compound having an acetal structure. The aqueous solution C comprises an acid and sugars. The aqueous solution D comprises formic acid, and the aqueous solution E comprises oxalic acid. | 10-15-2009 |
20090325021 | CATHODE FOR FUEL CELL - A cathode for a fuel cell is provided, which includes an electrode catalyst layer. This electrode catalyst layer is constituted by a carried catalyst including a conductive carrier and catalytic fine particles carried on the conductive carrier, by a proton-conductive inorganic oxide containing an oxide carrier and oxide particles carried on a surface of the oxide carrier, and by a proton-conductive organic polymer binder. The carried catalyst is incorporated therein at a weight of W | 12-31-2009 |
20100021787 | PROCESSES FOR PRODUCING CATALYST-LAYER-SUPPORTING SUBSTRATE, CATALYST-LAYER-SUPPORTING SUBSTRATE, MEMBRANE ELECTRODE ASSEMBLY, AND FUEL CELL - The processes include: a layer superposition step in which the step of sputtering or vapor-depositing a mixture layer including a first pore-forming metal and a catalyst metal on a substrate and the step of forming an interlayer of a second pore-forming metal or a fibrous-carbon interlayer are alternately conducted repeatedly two or more times to thereby form a multilayer structure containing mixture layers and interlayers; and a pore formation step in which after the layer superposition step, the multilayer structure is subjected to a pore formation treatment. | 01-28-2010 |
20100239950 | CATALYST LAYER-SUPPORTING SUBSTRATE, METHOD OF PRODUCING THE SAME AND FUEL CELL - A catalyst layer-supporting substrate includes a substrate and a catalyst layer. The catalyst layer includes a catalyst material and pores. The catalyst layer is formed on the substrate. The catalyst material has a layer or wire shape. A half-value width of a main peak of the catalyst material, as determined from X-ray diffraction spectrum of the catalyst layer, is 1.5° or more. A porosity of the catalyst layer is 30% or more. | 09-23-2010 |
20120164555 | COLLECTOR MEMBER, POWER GENERATOR, AND METHOD OF MANUFACTURING COLLECTOR MEMBER FOR POWER GENERATOR - According to an aspect of the present invention, there is provided a collector member | 06-28-2012 |
20130081678 | CONDUCTIVE MATERIAL - According to one embodiment, a conductive material includes a carbon substance and a metallic substance mixed with and/or laminated to the carbon substance. The carbon substance has at least one dimension of 200 nm or less. The carbon substance includes a graphene selected from single-layered graphene and multi-layered graphene, a part of carbon atoms constituting the graphene is substituted with a nitrogen atom. The metallic substance includes at least one of a metallic particle and a metallic wire. | 04-04-2013 |
20150044594 | PROCESSES FOR PRODUCING CATALYST-LAYER-SUPPORTING SUBSTRATE, CATALYST-LAYER-SUPPORTING SUBSTRATE, MEMBRANE ELECTRODE ASSEMBLY, AND FUEL CELL - A catalyst-layer-supporting substrate comprising a substrate supporting a catalyst layer; wherein the catalyst layer comprises two or more porous catalyst metal particle layers that are superposed alternately with (i) two or more intersticed layers comprising at least one element selected from the group consisting of Mn, Fe, Co, Ni, Zn, Sn, Al, and Cu; or (ii) two or more fibrous carbon layers having interstices among fibers of the fibrous carbon. A method for forming a catalyst-layer-supporting structure that comprises porous catalyst metal particle by removing a pore-forming metal from a mixture layer containing a pore-forming metal and a catalyst metal. | 02-12-2015 |
20150083311 | COLLECTOR MEMBER, POWER GENERATOR, AND METHOD OF MANUFACTURING COLLECTOR MEMBER FOR POWER GENERATOR - According to an aspect of the present invention, there is provided a collector member | 03-26-2015 |