Patent application number | Description | Published |
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 |
20120040270 | 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. | 02-16-2012 |
20120149545 | ELECTRODE CATALYST FOR FUEL CELL - An object of the present invention is to provide a platinum catalyst for a fuel cell, the platinum catalyst having platinum particles with a fine particle size which are supported on carbon carriers in a highly dispersed manner. To achieve the above object, the present invention provides a method for producing an electrode catalyst for a fuel cell, the method comprising: an ammonia treatment step of heat-treating carbon carriers in an ammonia gas atmosphere; a platinum salt contact step of mixing the carbon carriers treated with ammonia with a solution prepared by dissolving a platinum salt in a solvent and bringing the platinum salt coming into contact with the carbon carriers in the mixture that has been formed; a recovery step of recovering the carbon carriers by removing the solvent from the mixture; and a heat treatment step of heat-treating the recovered carbon carriers in an inert gas atmosphere. | 06-14-2012 |
20120196738 | METHOD FOR PRODUCING ELECTRODE CATALYST FOR FUEL CELL - The present invention provides a method for producing an electrode catalyst for a fuel cell, comprising the steps of: mixing conductive particles loaded with catalyst metal fine particles with an organic compound; and heat treating the mixture formed in the mixing step under an inert gas atmosphere, so as to carbonize the organic compound. According to the present invention, the size increase of catalyst metal fine particles, which lowers catalytic activity, can be suppressed. | 08-02-2012 |