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| 20090047559 | FUEL CELL ELECTRODE CATALYST WITH IMPROVED NOBLE METAL UTILIZATION EFFICIENCY, METHOD FOR MANUFACTURING THE SAME, AND SOLID POLYMER FUEL CELL COMPRISING THE SAME - An object of the present invention is to further increase the rate of Pt particles (Pt utilization rate) for three-phase interfaces in order to reduce the amount of catalytic metal such as Pt used for fuel cells. The present invention provides a fuel cell electrode catalyst comprising a conductive carrier and catalytic metal particles, wherein an average particle size of the carried catalytic metal particles is larger than an average pore size of micropores in the conductive carrier. | 02-19-2009 |
| 20090047568 | Electrode catalyst for fuel and fuel cell - A flooding phenomenon in a high current density loading region of fuel cells is suppressed so as to improve cell performance. An electrode catalyst for fuel cells comprises conductive carriers having ternary catalyst particles, which contain platinum, a base metal element, and iridium, supported thereon. A fuel cell uses the electrode catalyst for fuel cells. | 02-19-2009 |
| 20090117448 | Fuel Cell Electrode Catalyst with Reduced Noble Metal Amount and Solid Polymer Fuel Cell Comprising the Same - An object of the present invention is to reduce the amount of catalytic metal such as Pt in a fuel cell. The present invention provides a fuel cell electrode catalyst comprising a conductive carrier and catalytic metal particles, wherein the CO adsorption amount of the electrode catalyst is at least 30 mL/g·Pt. | 05-07-2009 |
| 20100227249 | PRODUCTION METHOD OF AN ELECTRODE CATALYST FOR A FUEL CELL, ELECTRODE CATALYST FOR A FUEL CELL, AND SOLID POLYMER FUEL CELL COMPRISING THE SAME - A method for producing an electrode catalyst for a fuel cell, including: an immersion step (step A) for immersing one or more selected from a catalyst component, a carrier of conductive particles, and a polymer electrolyte in a solvent; a catalyst loading step (step B) for loading the catalyst component on the carrier; and a reaction site forming step (step C) for depositing the polymer electrolyte onto the catalyst-loaded carrier, characterized by irradiating ultrasonic waves in at least one of steps A, B, and C. In the present invention, by suppressing a catalyst from being loaded inside the pores of a carrier, a method for producing an electrode catalyst for a fuel cell which increases the utilization rate of a noble metal catalyst and which improves power generation performance, an electrode catalyst for a fuel cell, and a solid polymer fuel cell provided therewith which can obtain high cell output can be obtained. | 09-09-2010 |
| 20100234210 | Fuel Cell Electrode Catalyst Comprising Binary Platinum Alloy and Fuel Cell Using the Same - An object of the present invention is to provide a fuel cell electrode catalyst which offers an improved durability while inhibiting the degradation of an initial catalytic activity to exhibit a stably high catalytic activity over a long period. The present invention provides a fuel cell electrode catalyst having an alloy carried by carbon, the alloy consisting of platinum and a platinum-family metal other tha platinum, characterized in that a composition ratio of platinum to platinum-family metal other than platinum to carbon is 1:(0.03 to 1.5):(0.46 to 2.2) (wt ratio). | 09-16-2010 |
| 20100330451 | ELECTRODE CATALYST SUBSTRATE AND METHOD FOR PRODUCING THE SAME, AND POLYMER ELECTROLYTE FUEL CELL - A method for producing an electrode catalyst substrate is provided herein, which comprises a carbon film forming step of forming a porous carbon film on a base, a hydrophilization step of hydrophilizing the porous carbon film, an immersion step of immersing the base in a solution prepared by dissolving catalytic metal ions in a polar solvent, and a reduction step of adding a reducing agent to the solution and thus reducing the catalytic metal ions. An electrode catalyst substrate obtained by the method and a polymer electrolyte fuel cell in which the electrode catalyst obtained by the method is used for anodes and/or cathodes are also provided herein. In the electrode catalyst of the present invention, fine catalyst particles are loaded in a uniform and highly dispersed manner. | 12-30-2010 |
| 20110130270 | METHOD FOR PREPARING FUEL CELL ELECTRODE CATALYST AND SOLID POLYMER FUEL CELL - According to the present invention, the catalyst performance of a chelate catalyst comprising a complex of a macrocyclic compound such as a porphyrin derivative is improved. Also, the following method is provided: a method for preparing a fuel cell electrode catalyst comprising a nitrogen-containing metal complex in which a metallic element is coordinated with a macrocyclic organic compound, such method comprising the steps of: adding tin oxalate to the nitrogen-containing metal complex; and baking a mixture of the nitrogen-containing metal complex and tin oxalate in an inert gas atmosphere, wherein elution of metal tin is carried out via acid treatment. | 06-02-2011 |
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| 20090092888 | Electrode catalyst for fuel cell and production process of the same - To enhance the activation of a catalyst comprising an alloy of platinum and cobalt, thereby providing an electrode catalyst for fuel cell whose battery output and fuel efficiency are high, and thereby providing a production process of the same. | 04-09-2009 |
| 20090099009 | PRODUCTION PROCESS OF ELECTRODE CATALYST FOR FUEL CELL - To provide a production process of an electrode catalyst for fuel cell whose initial voltage is high and whose endurance characteristics, especially, whose voltage drop being caused by high-potential application is less. | 04-16-2009 |
| 20090169974 | Conductive Carbon Carrier for Fuel Cell, Electrode Catalyst for Fuel Cell and Solid Polymer Fuel Cell Comprising Same - A conductive carbon carrier for a fuel cell having at least a surface layer graphitized, characterized in that the dimension (La) in a six-membered ring face (carbon plane) direction of a crystallite measured by X-ray diffraction is 4.5 nm or more. This carbon carrier improves the durability in a fuel cell and enables operation for a long period of time. | 07-02-2009 |
| 20090233135 | Fuel Cell Catalyst, Fuel Cell Electrode, and Polymer Electrolyte Fuel Cell Provided With Such Fuel Cell Electrode - A fuel cell catalyst in which catalyst particles are supported on a carrier is provided, wherein the value of the average catalyst carrier pore diameter/the catalyst metal (PGM) particle diameter is 0.5 to 1.8. Such fuel cell catalyst is less likely to cause voltage drops even after being used for a long period of time. | 09-17-2009 |
| 20100196802 | Fuel Cell and Supported Catalyst Used Therefor - A fuel cell having an excellent life property is achieved. A supported catalyst for a fuel cell includes a catalytic particle made of an alloy of platinum and gold, and a conductive carrier supporting the catalytic particle. 50% or more of gold forms a solid solution with platinum. | 08-05-2010 |
| 20100203428 | Supported Catalyst for Fuel Cell and Fuel Cell - A supported catalyst for fuel cell includes a conductive carrier and platinum supported on the conductive carrier. A 90% particle diameter D | 08-12-2010 |
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| 20080236639 | SUBSTRATE TREATING APPARATUS - A substrate treating apparatus for treating substrates with a treating liquid includes a treating tank having an inner tank for storing the treating liquid, and an outer tank for collecting the treating liquid overflowing the inner tank. A supply pipe interconnects the inner tank and the outer tank for circulating the treating liquid. A first branch pipe is shunted from the supply pipe, and a separator is mounted on the first branch pipe for separating deionized water and a solvent in the treating liquid, and discharging the deionized water. A second branch pipe interconnects positions upstream and downstream of the separator, and a deionized water remover is mounted on the second branch pipe for adsorbing and removing deionized water from the treating liquid. An injection pipe is connected to the supply pipe for injecting deionized water in a position downstream of the separator. A solvent injector injects the solvent into the injection pipe. A controller carries out a deionized water cleaning process for supplying deionized water from the injection pipe and cleaning the substrates inside the cleaning tank with deionized water, then a replacing process for injecting the solvent from the solvent injector and replacing the deionized water with the solvent, a separating and removing process for switching to the first branch pipe and causing the separator to remove the deionized water from the treating liquid, and an adsorbing and removing process for switching to the second branch pipe and causing the deionized water remover to adsorb and remove the deionized water from the treating liquid. | 10-02-2008 |
| 20090179008 | SUBSTRATE TREATING APPARATUS AND METHOD - A substrate treating apparatus for treating substrates with a treating solution having a mixture of a chemical and a diluent. The apparatus includes a treating tank for storing the treating solution, a heating device for heating the treating solution, a supply pipe for supplying a gas at a fixed flow rate, the supply pipe having a detecting end at a predetermined depth in the treating tank, a pressure detecting device for detecting a pressure in the supply pipe, a converting device for converting the pressure detected by the pressure detecting device into a voltage, a storage device for storing, as a reference voltage, a voltage received from the converting device when a reference liquid at a reference temperature is stored in the treating tank, and a computing device for deriving an actual specific gravity of the treating solution from the reference voltage stored in the storage device, and a treatment voltage received from the converting device when the treating solution stored in the treating tank has been heated to a treating temperature by the heating device. | 07-16-2009 |
| 20100051055 | SUBSTRATE PROCESSING APPARATUS AND SUBSTRATE PROCESSING METHOD - The substrate processing apparatus according to the present invention includes: a substrate rotating mechanism holding a substrate in a horizontal attitude and rotating the substrate around an axis passing through the center of the substrate; a processing liquid supply mechanism supplying a processing liquid to a central portion of the upper surface of the substrate rotated by the substrate rotating mechanism; a counter member arranged to be opposed to the upper surface of the substrate rotated by the substrate rotating mechanism; and a liquid film extending mechanism moving the counter member from a position opposed to the central portion of the substrate to a position opposed to a peripheral edge portion of the substrate in parallel with the supply of the processing liquid by the processing liquid supply mechanism and extending a liquid film of the processing liquid covering the central portion of the substrate toward the peripheral edge of the substrate due to the movement. | 03-04-2010 |
| 20100175714 | SUBSTRATE PROCESSING APPARATUS AND SUBSTRATE PROCESSING METHOD - A substrate processing apparatus and a substrate processing method, with which a resist can be removed satisfactorily from the substrate and a processing solution used for removing the resist can be recycled, are provided. The substrate processing apparatus includes: a substrate holding means holding a substrate; a peroxosulfuric acid generating means generating a peroxosulfuric acid using sulfuric acid; a mixing means mixing the peroxosulfuric acid generated by the peroxosulfuric acid generating means and sulfuric acid of higher temperature and higher concentration than the sulfuric acid used in the peroxosulfuric acid generating means; and a discharging means discharging, toward the substrate held by the substrate holding means, the mixed solution of the peroxosulfuric acid and the sulfuric acid mixed by the mixing means as a processing solution for removing a resist from the substrate. | 07-15-2010 |
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| 20080198886 | NITRIDE SEMICONDUCTOR LASER ELEMENT - The present invention provides a nitride semiconductor laser element, comprising: a nitride semiconductor structure having a first nitride semiconductor layer, a second nitride semiconductor layer, and an active layer provided between the first and second nitride semiconductor layers; a cavity end face provided to the nitride semiconductor structure; and a protective film having a hexagonal crystal structure, and having a first region provided on a first crystal surface of the nitride semiconductor structure in the cavity end face and a second region provided on a second crystal surface in the surface of at least one of the first and second nitride semiconductor layer, the first and second regions of the protective film are oriented in the same axial direction as that of the respective first and second crystal surfaces. | 08-21-2008 |
| 20080205464 | NITRIDE SEMICONDUCTOR LASER ELEMENT - A nitride semiconductor laser element has a first nitride semiconductor layer, an active layer, a second nitride semiconductor layer, and a first protective film in contact with a cavity end face of the nitride semiconductor layer, wherein the first protective film in contact with at least the active layer of the cavity end face has a region thinner than the maximum thickness of the first protective film. | 08-28-2008 |
| 20090010294 | NITRIDE SEMICONDUCTOR LASER ELEMENT - A nitride semiconductor laser element, comprises; nitride semiconductor layers in which a nitride semiconductor layer of a first conduction type, an active layer, and a nitride semiconductor layer of a second conduction type that is different from the first conduction type are laminated in that order; a cavity end face formed by the nitride semiconductor layers; and a protective film formed on the cavity end face, the protective film has a region in which an axial orientation of crystals is different in the direction of lamination of the nitride semiconductor layers. | 01-08-2009 |
| 20100158066 | NITRIDE SEMICONDUCTOR LASER ELEMENT - A nitride semiconductor laser element includes a nitride semiconductor layer of a first conduction type, an active layer, and a nitride semiconductor layer of a second conduction type that is different from the first conduction type are laminated in that order, a cavity end face formed by the nitride semiconductor layers, and a protective film formed on the cavity end face. The nitride semiconductor layers of the first and second conduction types have layers containing Al, and the active layer has layer containing In. The protective film has a region in which an axial orientation of crystals is the same as that of the cavity end face on the nitride semiconductor layers of the first and second conduction types, and has another region in which an axial orientation of crystals is different from that of the cavity end face on the active layer. | 06-24-2010 |
