Class / Patent application number | Description | Number of patent applications / Date published |
429044000 | Having an inorganic matrix, substrate or support | 41 |
20080206625 | Fuel Cell With Novel Reaction Layer - A fuel cell includes a reaction layer composed of a catalyst carrier, formed of a compound having inorganic electron conductor units and inorganic proton conductor units in its molecular structure, and a catalyst supported on the catalyst carrier. | 08-28-2008 |
20080241642 | ELECTROCHEMICAL OXIDATION OF FORMIC ACID USING A NOBLE METAL BASED CATALYST WITH ADMETALS - A catalyst formulation for an organic fuel cell includes a noble metal and an admetal. The catalyst formulation can include a noble metal and an admetal in a heterogeneous mixture or a solid solution with up to about 90% degree of alloying. The admetal can encourage the oxidation of catalyst poisons at room temperature and therefore reduces the exhaustion of the fuel cell. | 10-02-2008 |
20080248373 | ANODE FOR FUEL CELL, MEMBRANE-ELECTRODE ASSEMBLY FOR FUEL CELL INCLUDING SAME, AND FUEL CELL SYSTEM INCLUDING SAME - Anodes for fuel cells, membrane-electrode assemblies for fuel cells including the anodes, and fuel cell systems including the membrane-electrode assemblies are provided. The anode includes a catalyst layer including a platinum-based metal catalyst and a carbon monoxide oxidizing catalyst on a catalyst support, and an electrode substrate. The catalyst support may be selected from ThO | 10-09-2008 |
20080254342 | Gas Diffusion Electrodes, Membrane-Electrode Assemblies and Method for the Production Thereof - A method for forming a patterned noble metal coating on a gas diffusion medium substantially free of ionomeric components comprising subjecting an electrically conductive web with a patterned mask overlaid thereto to a first ion beam having an energy not higher than 500 eV, and to a second beam having an energy of at least 500 eV, containing the ions of at least one noble metal and a gas diffusion electrode. | 10-16-2008 |
20080280190 | Electrochemical catalysts - A composition useful in electrodes provides higher power capability through the use of nanoparticle catalysts present in the composition. Nanoparticles of transition metals are preferred such as manganese, nickel, cobalt, iron, palladium, ruthenium, gold, silver, and lead, as well as alloys thereof, and respective oxides. These nanoparticle catalysts can substantially replace or eliminate platinum as a catalyst for certain electrochemical reactions. Electrodes, used as anodes, cathodes, or both, using such catalysts have applications relating to metal-air batteries, hydrogen fuel cells (PEMFCs), direct methanol fuel cells (DMFCs), direct oxidation fuel cells (DOFCs), and other air or oxygen breathing electrochemical systems as well as some liquid diffusion electrodes. | 11-13-2008 |
20080299444 | HYDROGEN STORAGE ELECTRODE - An electrode includes a hydrogen storage material wherein the electrode has a discharge capacity of greater than about 200 mHh/g. The electrode may include an electrically conductive substrate; and a material capable of storing hydrogen on a surface thereof supported by the substrate. The hydrogen storage material is formed by contacting a powder composition with a first solution prior to electrode fabrication and by contacting the hydrogen storage material to a second solution subsequent to electrode fabrication; and the first solution comprises a first reducing agent and a first alkaline base, and the second solution comprises a second reducing agent and a second alkaline base. | 12-04-2008 |
20090004552 | NANOWIRE SUPPORTED CATALYSTS FOR FUEL CELL ELECTRODES - Metal oxide nanowires and carbon-coated metal nanowires are effective as supports for particles of an expensive catalyst material, such as platinum metal group catalyst. Such supported catalysts are useful when included in an electrode on, for example, a proton exchange membrane in a hydrogen/oxygen fuel cell. For example, tin oxide nanowires are formed on carbon fibers of carbon paper and platinum nanoparticles are deposited on the tin oxide nanowires. The nanowires provide good surfaces for effective utilization of the platinum material. | 01-01-2009 |
20090017363 | Nanowire-Based Membrane Electrode Assemblies for Fuel Cells - The present invention discloses nanowires for use in a fuel cell comprising a metal catalyst deposited on a surface of the nanowires. A membrane electrode assembly for a fuel cell is disclosed which generally comprises a proton exchange membrane, an anode electrode, and a cathode electrode, wherein at least one or more of the anode electrode and cathode electrode comprise an interconnected network of the catalyst supported nanowires. Methods are also disclosed for preparing a membrane electrode assembly and fuel cell based upon an interconnected network of nanowires. | 01-15-2009 |
20090023050 | Internal reforming solid oxide fuel cells - The present teachings relate to solid oxide fuel cells with internal reforming capability. The solid oxide fuel cell generally includes a cathode, an electrolyte, an anode, and a catalyst layer in contact with the anode. The catalyst layer can include a support membrane and a reforming catalyst layer associated with the support membrane. In some embodiments, the reforming catalyst can include one or more partial oxidation reforming catalysts. The present teachings also provide methods of making and operating the solid oxide fuel cells described above. | 01-22-2009 |
20090023051 | PLATINUM, TUNGSTEN AND NICKEL CONTAINING ELECTROCATALYSTS - The present teachings are directed toward electrocatalyst compositions of alloys of platinum, tungsten and nickel for use in fuel cells. The alloys consists essentially of platinum present in an atomic percentage ranging between about 20 percent and about 45 percent, tungsten present in an atomic percentage ranging between about 30 percent and about 70 percent, and nickel present in an atomic percentage ranging between about 5 percent and about 25 percent. | 01-22-2009 |
20090029236 | CATHODE FOR ELECTROCHEMICAL REACTOR, ELECTROCHEMICAL REACTOR INCORPORATING SUCH CATHODES AND METHOD FOR MAKING SAID CATHODE - This cathode for electrochemical reactor comprises a diffusion layer and a catalyst layer. | 01-29-2009 |
20090035645 | Fuel cell assembly, separator-diffusion layer assembly for fuel cell assembly and manufacturing method therefor - In a fuel cell assembly ( | 02-05-2009 |
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 |
20090053583 | GAS DIFFUSION ELECTRODE AND PROCESS FOR PRODUCING IT AND ITS USE - The invention describes a process for producing a gas diffusion electrode which has a catalyst layer having a smooth surface, wherein the smooth surface of the catalyst layer is produced by bringing the catalyst layer in the moist state into contact with a transfer film and removing this transfer film after drying. In variant A, the catalyst layer is firstly produced on a transfer film and then transferred in the moist state to the gas diffusion layer. In variant B, the catalyst layer is applied to the gas diffusion layer, and a transfer film is then placed on top. In both cases, the structure produced in this way is subsequently dried. Before further processing, the transfer film is removed to give a gas diffusion electrode having a smooth catalyst surface which has a maximum profile peak height (Rp) of less than 25 microns. The electrodes are used for producing membrane-electrode assemblies for membrane fuel cells or other electrochemical devices. Membrane-electrode assemblies comprising the gas diffusion electrodes of the invention display very good long-term behaviour. | 02-26-2009 |
20090061287 | Horizontally Graded Structures for Electrochemical and Electronic Devices - The present invention provides a graded multilayer structure, comprising a support layer ( | 03-05-2009 |
20090068546 | Particle containing carbon particle, platinum and ruthenium oxide, and method for producing same - The present invention relates to particles comprising at least carbon particles, platinum and ruthenium oxide, wherein the carbon particles support platinum and ruthenium oxide having an average particle diameter of 1 nm or less, and a method for producing the same, and to a power generating element for a fuel cell in which the particles are used as a catalyst for an electrode. | 03-12-2009 |
20090075157 | Carbon nanotube for fuel cell, nanocomposite comprising the same, method for making the same, and fuel cell using the same - Provided are aligned carbon nanotubes for a fuel cell having a large surface area, a nanocomposite that includes the aligned carbon nanotubes loaded with highly dispersed nanoparticles of a metallic catalyst, methods of producing the carbon nanotubes and the nanocomposite, and a fuel cell including the nanocomposite. In the nanocomposite, nanoparticles of the metallic catalyst are uniformly distributed on external walls of the nanotubes. A fuel cell including the nanocomposite exhibits better performance. | 03-19-2009 |
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 |
20090098441 | Materials for Fuel Cell Electrode and Fuel Cell - Materials of a fuel cell electrode are provided as a fuel cell electrode on front and/or rear surface of an electrolyte membrane | 04-16-2009 |
20090136828 | Carbon Nanotube Electrodes and Method for Fabricating Same for Use in Biofuel Cell and Fuel Cell Applications - Carbon nanotubes (CNTs) are mixed in an aqueous buffer solution that includes a buffer material having a molecular structure defined by a first end, a second end, and a middle disposed between the first and second ends. The first end is a cyclic ring with nitrogen and oxygen heteroatomes, the middle is a hydrophobic alkyl chain, and the second end is a charged group. The resulting solution includes the CNTs dispersed therein. Metal-core ferritins are then mixed into the resulting solution where at least a portion of the ferritins are coupled to the CNTs. | 05-28-2009 |
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 |
20090169975 | Electrode, Fuel Cell Electrode, Fuel Cell, and Production Method of Electrode - An electrode has a metal fiber sheet and a thin sheet metal pattern connected to the surface of the metal fiber sheet and has a line pattern that runs on the metal fiber sheet. The line pattern includes an annular pattern that is provided on the peripheral edge of the metal fiber sheet and has an inside area, and the line pattern includes a bridge portion dividing the inside area of the annular pattern. | 07-02-2009 |
20090208814 | HONEYCOMB-TYPE SOLID OXIDE FUEL CELL AND METHOD FOR MANUFACTURING THE SAME - The present invention relates to a honeycomb type SOFC wherein a first material, density of which is lowered upon phase-transition, a second material having higher thermal expansion coefficient than that of an electrode supporter, or a composite material of the first and second materials is filled in the electrode channel to which the collector is bonded as a material which can form an oxide under the electrode atmosphere, and a manufacturing method thereof. | 08-20-2009 |
20090246602 | Microparticle-Supported Carbon Particle, Method for Production Thereof, and Fuel Cell Electrode - There are provided fine particle-carrying carbon particles, which can be used as a substitute for the existing platinum-carrying carbon particles or platinum metal particles commonly used in electrocatalysts for fuel cells or the like, and which are significantly reduced in the amount of platinum to be used in comparison with the existing platinum-carrying carbon particles, and an electrode for a fuel cell using the same carbon particles. | 10-01-2009 |
20090297924 | CATALYST NANOPARTICLE - Although nanoparticles capable of providing an extremely large active surface area have highly marked advantages, when a PEFC electrode utilizing nanoparticles is used for a prolonged period of time, the catalyst nanoparticles on carrier of the PEFC electrode because of the nano-size thereof migrate and aggregate together to result in a rapid loss of activity. Thus, there is a demand for inhibition of the above aggregation so as to prevent any drop of catalytic activity. According to the present invention the aggregation of nanoparticles can be inhibited by catalyst nanoparticles containing Pt wherein a porous matter containing an inorganic oxide is disposed on the surface of the catalyst nanoparticles. When use is made of nanoparticles whose surface has undergone specific modification, excellent activity can be realized. Therefore, there are provided surface-modified nanoparticles and catalyst and further a PEFC electrode utilizing these nanoparticles. | 12-03-2009 |
20090311579 | Power and Hydrogen Generation System - A galvanic cell system was discovered that is based on two dissimilar electrodes in an electrolyte solution of hypochlorite and peroxide. The oxidant electrolyte solution contains preferably sodium hypochlorite and hydrogen peroxide in a 10:1 ratio. The cathode (e.g, a copper electrode) was not appreciably consumed. The anode preferably was composed of an aluminum/manganese alloy. This galvanic cell system produced significant current density (e.g., 23 mA/cm | 12-17-2009 |
20100009242 | CARBON NANOWALL WITH CONTROLLED STRUCTURE AND METHOD FOR CONTROLLING CARBON NANOWALL STRUCTURE - Provided is a method for controlling a carbon nanowall (CNW) structure having improved corrosion resistance against high potential by varying the spacing between the carbon nanowall (CNW) walls so that its surface area and crystallinity are controlled. Also provided is a carbon nanowall (CNW) with a high surface arca and a carbon nanowall (CNW) with a high crystallinity, both of which have a controlled structure. According to the present invention, provided are: (1) a carbon nanowall, characterized by having a wall surface area of 50 cm | 01-14-2010 |
20100015507 | POROUS TITANIUM HAVING LOW CONTACT RESISTANCE - Porous titanium having a low contact resistance includes porous titanium body, Au, and a Ti oxide layer ( | 01-21-2010 |
20100035126 | Electrode substrate for electrochemical cell from carbon and cross-linkable resin fibers - A method of making an electrochemical cell electrode substrate includes creating an aqueous or dry mixture of chopped carbon fibers, chopped cross-linkable resin fibers that are still fuseable after being formed into a felt, such as novolac, a temporary binder, such as polyvinyl alcohol fiber or powder, forming a non-woven felt from either an aqueous suspension of the aqueous mixture or an air suspension of the dry mixture, by a non-woven, wet-lay or dry-lay, respectively, felt forming process, a resin curing agent, such as hexamethylene tetramine may be included in the aqueous or dry mixture, or it may be coated onto the formed felt; pressing one or more layers of the formed felt for 1-5 minutes to a controlled thickness and a controlled porosity at a temperature at which the resin melts, cross-links and then cures, such as 150° C.-200° C.; and heat treating the pressed felt in a substantially inert atmosphere, first to 750° C.-1000° C. and then to 1000° C.-3000° C. | 02-11-2010 |
20100081035 | OPTIMIZED CELL CONFIGURATIONS FOR STABLE LSCF-BASED SOLID OXIDE FUEL CELLS - Lanthanum strontium cobalt iron oxides (La(1-x)SrxCoyFe1-yO3-f; (LSCF) have excellent power density (>500 mW/cm2 at 750° C.). When covered with a metallization layer, LSCF cathodes have demonstrated increased durability and stability. Other modifications, such as the thickening of the cathode, the preparation of the device by utilizing a firing temperature in a designated range, and the use of a pore former paste having designated characteristics and combinations of these features provide a device with enhanced capabilities. | 04-01-2010 |
20100081036 | ALCOHOL OXIDATION CATALYST, METHOD OF MANUFACTURING THE SAME, AND FUEL CELL USING THE ALCOHOL OXIDATION CATALYST - An ethanol oxidation catalyst including a Pt/Ru alloy and tin(II) oxide or tin(IV) oxide, a method of manufacturing the same, an electrode for a fuel cell including the ethanol oxidation catalyst, and a fuel cell having excellent power generation efficiency using the electrode. | 04-01-2010 |
20100086831 | CATALYST - An electrocatalyst, suitable for use in a fuel cell, comprises an alloy having a single crystalline phase, wherein the alloy consists of 5-95 at % palladium, 5-95 at % ruthenium and less than 10 at % of other metals, provided that the alloy does not consist of 50 at % palladium and 50 at % ruthenium. | 04-08-2010 |
20100086832 | CORE / SHELL-TYPE CATALYST PARTICLES AND METHODS FOR THEIR PREPARATION - The invention discloses core/shell type catalyst particles comprising a M | 04-08-2010 |
20100092841 | CORE / SHELL-TYPE CATALYST PARTICLES COMPRISING METAL OR CERAMIC CORE MATERIALS AND METHODS FOR THEIR PREPARATION - The invention is directed to core/shell type catalyst particles comprising a M | 04-15-2010 |
20100099012 | Electrocatalyst Synthesized by Depositing a Contiguous Metal Adlayer on Transition Metal Nanostructures - Transition metal nanostructures coated with a contiguous, conformal submonolayer-to-multilayer noble metal film and their method of manufacture are described. The manufacturing process involves the initial formation of suitably sized transition metal or alloy nanostructures which may be nanorods, nanobars, or nanowires. A monolayer of a non-noble metal is deposited onto the surface of the nanostructures by underpotential deposition. This is followed by the galvanic displacement of the non-noble metal by a second metal to yield a conformal coating of a monolayer of the second metal on the surface of the nanostructures. The replacement of atoms of the first metal by atoms of the second metal is an irreversible and spontaneous redox reaction which involves the replacement of a non noble metal by a more noble metal. The process can be controlled and repeated to obtain the desired film coverage. The resulting coated nanostructures provide heightened catalytic activity and can be used as high-performance electrodes in fuel cells. | 04-22-2010 |
20100104926 | DISPERSION OF COMPOSITE MATERIALS, IN PARTICULAR FOR FUEL CELLS - The invention relates to the preparation of a catalytic composition that comprises a carbonated structuring material (MSC) associated with a catalyst (CAT). The invention comprises mixing a solution of a first solvent (SOL | 04-29-2010 |
20100143768 | Composite catalyst for electrode and electrochemical cell using the same - A composite catalyst for an electrode is described, including platinum for dehydrogenation, an element E for water dissociation, and a material MO | 06-10-2010 |
20100159305 | Carbon based electrocatalysts for fuel cells - Novel proton exchange membrane fuel cells and direct methanol fuel cells with nanostructured components are configured with higher precious metal utilization rate at the electrodes, higher power density, and lower cost. To form a catalyst, platinum or platinum-ruthenium nanoparticles are deposited onto carbon-based materials, for example, single-walled, dual-walled, multi-walled and cup-stacked carbon nanotubes. The deposition process includes an ethylene glycol reduction method. Aligned arrays of these carbon nanomaterials are prepared by filtering the nanomaterials with ethanol. A membrane electrode assembly is formed by sandwiching the catalyst between a proton exchange membrane and a diffusion layer that form a first electrode. The second electrode may be formed using a conventional catalyst. The several layers of the MEA are hot pressed to form an integrated unit. Proton exchange membrane fuel cells and direct methanol fuel cells are developed by stacking the membrane electrode assemblies in a conventional manner. | 06-24-2010 |
20100167106 | ORDERED MESOPOROUS CARBON COMPOSITE CATALYST, METHOD OF MANUFACTURING THE SAME, AND FUEL CELL USING THE SAME - An ordered mesoporous carbon (OMC) composite catalyst includes an OMC; and metal particles and at least one component selected from a group consisting of nitrogen and sulfur included in the OMC. The ordered mesoporous carbon composite catalyst may be formed by impregnating an ordered mesoporous silica with a mixture of at least one selected from the group consisting of a nitrogen-containing carbon precursor, and a sulfur-containing carbon precursor, a metal precursor, and a solvent; drying and heat-treating the impregnated OMS; carbonizing the dried and heat-treated OMS to obtain a carbon-OMS composite; and removing the OMS from the carbon-OMS composite. A fuel cell may contain the OMC composite catalyst. | 07-01-2010 |
429045000 | Of sintered particles | 2 |
20090047569 | High strength support for solid oxide fuel cell - An anode for use in an anode-supported planar solid oxide fuel cell (SOFC) is formed from a Ni—YSZ cermet composition that includes a sintering aid selected from the group consisting of an oxide, a carbonate, and mixtures thereof of at least one metal of Group 2 of the Periodic Table. | 02-19-2009 |
20090098442 | HIERARCHICAL MESOPOROUS CARBON, METHOD OF MANUFACTURING THE SAME, AND FUEL CELL USING THE SAME - A hierarchical mesoporous carbon is provided in which a total volume of mesopores of the hierarchical mesoporous carbon is 80% or greater of a total volume of pores of the hierarchical mesoporous carbon; a volume of mesopores with a average diameter greater than 20 nm and no greater than 50 nm is 3% or greater of the total volume of the pores; and a volume of mesopores with a average diameter greater than 2 nm and no greater than 10 nm is 65% or greater of the total volume of the pores. The hierarchical mesoporous carbon, which also contains macropores, has an optimized mesoporous distribution characteristic, and has an increased total volume of pores, thereby having a significantly improved catalytic activity when used as a catalyst support. When such a supported catalyst including the hierarchical mesoporous carbon as a support is used in a fuel cell, supply of fuel and transporting of byproducts are facilitated. | 04-16-2009 |