Class / Patent application number | Description | Number of patent applications / Date published |
429042000 | Having organic constituent as part of the electrode | 30 |
20080206624 | Trifluorostyrene Containing Compounds, and their Use in Polymer Electrolyte Membranes - A fluorinated ion exchange polymer prepared by grafting a monomer on to a base polymer, wherein the grafting monomer is selected from the group consisting of structure 1a, structure 1b and mixtures thereof, (INSERT 1a and 1b HERE) wherein Y is selected from the group consisting of —R | 08-28-2008 |
20080292944 | Silver Gas Diffusion Electrode for Use in Air Containing Co2, and Method for the Production Thereof - The invention relates to a method for the production of a gas diffusion electrode from a silver catalyst on a PTFE-substrate. The pore system of the silver catalyst is filled with a moistening filling agent. A dimensionally stable solid body having a particle size greater than the particle size of the silver catalyst is mixed with the silver catalyst. Said compression-stable mass is formed in a first calendar in order to form a homogenous catalyst band. In a second calendar, an electroconductive discharge material is embossed in the catalyst band, and heating takes places between the first and the second calendar by means of a heating device, wherein at least parts of the moistened filling agent are eliminated. The invention also relates to a gas diffusion electrode which is produced according to said method. | 11-27-2008 |
20090029235 | Mitigation of Membrane Degradation by Multilayer Electrode - An MEA for a fuel cell that employs multiple catalyst layers to reduce the hydrogen and/or oxygen partial pressure at the membrane so as to reduce the fluoride release rate from the membrane and reduce membrane degradation. An anode side multi-layer catalyst configuration is positioned at the anode side of the MEA membrane. The anode side multi-layer catalyst configuration includes an anode side under layer positioned against the membrane and including a catalyst, an anode side middle layer positioned against the anode side under layer and not including a catalyst and an anode side catalyst layer positioned against the anode side middle layer and opposite to the anode side under layer and including a catalyst, where the amount of catalyst in the anode side catalyst layer is greater than the amount of catalyst in the anode side under layer. | 01-29-2009 |
20090042093 | PROTON CONDUCTOR FOR FUEL CELL AND FUEL CELL INCLUDING THE SAME - Provided are a proton conductor for a fuel cell, the proton conductor including a phosphoric acid-based material; and a C8-C20 perfluoroalkylsulfonic acid salt which is dissolved in the phosphoric acid-based material and has excellent oxygen solubility characteristics, an electrode including the proton conductor, an electrolyte membrane for a fuel cell including the proton conductor, and a fuel cell including the electrode and the electrolyte membrane. When the C8-C20 perfluoroalkylsulfonic acid salt is used in the preparation of the electrode and electrolyte membrane for a fuel cell, oxygen solubility is increased in a phosphoric acid-based material and oxygen concentration is increased in a phosphoric acid-based material of the electrode. Thus, reactivity of oxygen reduction which is performed in a cathode is increased. Increased concentration of oxygen in the electrode increases oxygen permeability in the cathode, and thus the resistance against reactants' transfer is decreased. As a result, the cell voltages can be increased using the electrode and the electrolyte membrane, and fuel cells having improved efficiency can be prepared. | 02-12-2009 |
20090068543 | PHOSPHOROUS CONTAINING BENZOXAZINE-BASED MONOMER, POLYMER THEREROF, ELECTRODE FOR FUEL CELL INCLUDING THE SAME, ELECTROLYTE MEMBRANE FOR FUEL CELL INCLUDING THE SAME, AND FUEL CELL EMPLOYING THE SAME - A phosphorous containing benzoxazine-based monomer, a polymer thereof, an electrode for a fuel cell including the same and an electrolyte membrane for a fuel cell, and a fuel cell including the same. | 03-12-2009 |
20090081527 | FUEL CELL SYSTEM - A membrane electrode assembly (MEA) may include an electrochemically separating sublayer disposed between the proton exchange membrane and an anode substrate. The MEA may also include a poison-scrubbing catalyst disposed between the electrochemically separating sublayer and the anode substrate. An anode electrocatalyst disposed between the proton exchange membrane and the electrochemically separating sublayer and a cathode electrocatalyst disposed between the cathode substrate and the proton exchange membrane. | 03-26-2009 |
20090117450 | METHOD FOR EVALUATING PERFORMANCE OF ELECTRODE CATALYST FOR CELL, SEARCH METHOD, ELECTRODE CATALYST FOR CELL AND FUEL CELL USING SAME - A method for evaluating the performance of an electrode catalyst for a fuel cell having a catalyst metal supported on a conductive support, wherein a voltammogram area/catalyst specific surface area of the electrode catalyst is used as an index for the performance evaluation, and the performance is evaluated as good when the voltammogram area/catalyst specific surface area is 1.0×10 | 05-07-2009 |
20090123812 | PHOSPHORUS CONTAINING BENZOXAZINE-BASED MONOMER, POLYMER THEREOF, ELECTRODE FOR FUEL CELL INCLUDING THE POLYMER, ELECTROLYTE MEMBRANE FOR FUEL CELL INCLUDING THE POLYMER, AND FUEL CELL USING THE ELECTRODE - A phosphorus containing monomer, a polymer thereof, an electrode for a fuel cell including the polymer, an electrolyte membrane for a fuel cell including the polymer, and a fuel cell including the electrode. The phosphorus containing monomer is represented by Formula 1: | 05-14-2009 |
20090162735 | Fuel Cell Reaction Layer, Fuel Cell, and Method for Producing Fuel Cell Reaction Layer - Disclosed is a fuel cell reaction layer which is excellent in durability and heat resistance while having a low operation temperature. In addition, supply of an oxygen gas to the fuel cell reaction layer is hardly disturbed. Also disclosed are a fuel cell and a method for producing such a fuel cell reaction layer. Specifically disclosed is a fuel cell reaction layer wherein a mixed conductive catalyst, which is obtained by loading a Pt catalyst onto a mixed conductive carrier wherein an electron conductor composed of carbon and a proton conductor composed of a phosphoric acid condensate are hybridized, is used. In addition, a water-repellent carbon is further blended in this fuel cell reaction layer. The mixed conductive carrier is obtained by carbonizing a polymer precursor which is obtained by mixing and copolymerizing a resorcinol and trimethyl phosphate. | 06-25-2009 |
20090253024 | Nitro-Compound Cathodes for Batteries and Semi-Fuel Cells - There is disclosed a cathode/fuel formulation used for primary cells (batteries) or even for semi-fuel cells. More particularly, there is disclosed an air-breathing cathode semi-fuel cell having an anode and a cathode formulation, wherein the anode comprises a formulation of metals and alloys selected from the group consisting of Li, Mg, Ca, Al, and combinations thereof, and the cathode formulation comprises components (a) an aromatic nitro compound as a fuel, (b) a binder agent, and (c) and a conductive particle composition, wherein the three components are mixed together and pressed onto a scaffold to form a cathode, wherein the cathode formulation further comprises oxygen or openings to allow for air to circulate. More particularly, there is disclosed a battery having an anode and a cathode formulation, wherein the anode comprises a formulation of metals and alloys selected from the group consisting of Li, Mg, Ca, Al, and combinations thereof, and the cathode formulation comprises components (a) an aromatic nitro compound as a fuel, (b) a binder agent, and (c) and a conductive particle composition, wherein the three components are mixed together and pressed onto a scaffold to form a cathode. | 10-08-2009 |
20090291352 | ELECTRODE MATERIAL - An electrode material, including: catalyst particles formed by performing inclusion, by a porous inorganic material, for a conductive support and metal particles arranged on the conductive support and/or metal particles brought into contact with the conductive support. | 11-26-2009 |
20090311578 | WATER REPELLENT CATALYST LAYER FOR POLYMER ELECTROLYTE FUEL CELL AND MANUFACTURING METHOD FOR THE SAME - A water repellent catalyst layer for a polymer electrolyte fuel cell, including a water repellent coating film provided on catalyst particles, which are coated with a proton-conductive electrolyte, and a manufacturing method for a water repellent catalyst layer for a polymer electrolyte fuel cell including the steps of: coating catalyst particles with a proton-conductive electrolyte; providing a fluorine-based compound having at least one polar group and having a molecular weight of 10,000 or less on the catalyst particles to form a fluorine compound coating film; and imparting hydrophobic property by stabilizing the fluorine compound coating film. The hydrophobic property is imparted even to the inside of fine pores of the catalyst layer to improve water evacuation performance, so that an effective surface area and a catalyst utilization ratio can be increased. | 12-17-2009 |
20100009241 | FUEL CELL AND PROCESS FOR PRODUCTION THEREOF; AND ELECTRONIC INSTRUMENT, MOBILE MACHINE, ELECTRIC POWER GENERATING SYSTEM, COGENERATION SYSTEM, AND ELECTRODE REACTION-BASED APPARATUS - A porous electroconductive material is provided. The electroconductive material enables efficient enzymatic metabolic reactions on electrodes and yields electrodes having immobilized enzymes thereon which remain stable in any working environment. The porous electroconductive material, which has a three-dimensional network structure, is formed from a skeleton of porous material and a carbonaceous material covering the surface of the skeleton. The porous material constituting the skeleton is foamed metal or alloy. This porous electroconductive material is made into an electrode, and enzymes are immobilized on this electrode. The resulting electrode with immobilized enzymes thereon is used as the anode of a bio-fuel cell. | 01-14-2010 |
20100021797 | Membrane electrode assembly and fuel cell using the same - A membrane electrode assembly includes a proton exchange membrane and at least one electrode. The at least one electrode includes a carbon nanotube composite structure. The carbon nanotube composite structure includes a carbon nanotube structure and a catalyst material. The carbon nanotube structure includes a plurality of carbon nanotubes and the catalyst material is dispersed on the carbon nanotubes. A fuel cell using the membrane electrode assembly is also provided. | 01-28-2010 |
20100035125 | LAYERED ELECTRODE FOR ELECTROCHEMICAL CELLS - One exemplary embodiment may include an electrode including a hydrophobic material. | 02-11-2010 |
429043000 | Organic catalyst | 15 |
20080233466 | Catalyst Material and Process For Preparing the Same - This invention provides a catalyst material comprising a conductive material coated with a polynuclear complex molecule derived from at least two types of heteromonocyclic compounds and a catalyst metal coordinated to the coating layer of the polynuclear complex molecule, and a catalyst material comprising a conductive material coated with a polynuclear complex molecule derived from a heteromonocyclic compound and a catalyst metal, which is a composite of a noble metal and a transition metal, coordinated to the coating layer of the polynuclear complex molecule. Such catalyst material of the invention has excellent catalytic performance and serviceability as, for example, an electrode of fuel cells. | 09-25-2008 |
20090047567 | Biofuel cell, method for producing the same, electronic apparatus, enzyme-immobilized electrode, and method for producing the same - A biofuel cell has a structure in which a cathode and an anode are opposed to each other with a electrolyte layer provided therebetween, at least one of the cathode and the anode including an electrode on which at least one enzyme and at least one electron mediator are immobilized. The concentration of the electron mediator immobilized on the electrode is at least 10 times a Michaelis constant K | 02-19-2009 |
20090053582 | METHOD OF COATING BILIRUBIN OXIDASE - A method of coating bilirubin oxidase (BOD) is provided and includes introducing a polymerizable functional group onto the surface of a bilirubin oxidase (BOD) molecule, and copolymerizing the polymerizable functional group with a polymerizable monomer. The step of introducing the polymerizable functional group and the step of copolymerizing the polymerizable functional group with the polymerizable monomer are performed at 17° C. or lower. | 02-26-2009 |
20090068544 | FUEL CELL USING POLYHYDRIC MIXTURES DIRECTLY AS A FUEL - There is disclosed a fuel cell having an anode and cathode and using either glycerol or biodiesel process waste (containing about 90% glycerol) as a fuel source to generate power and oxidize glycerol to oxidized fragments and carbon dioxide. More particularly, there is disclosed a liquid fuel cell incorporating a membrane-electrode assembly (MEA) wherein the electrocatalysts are embedded in or adjacent a polymeric conducting membrane with which they form the fuel cell body and glycerol or biodiesel process waste is oxidized to form the power source. | 03-12-2009 |
20090068545 | METHOD OF MANUFACTURING CELLULOSE ELECTRODE FOR FUEL CELLS, CELLULOSE ELECTRODE MANUFACTURED THEREBY, AND USE OF CELLULOSE FIBERS AS FUEL CELL ELECTRODES - Disclosed is a novel cellulose electrode having high performance, which is capable of substituting for carbon paper used as a conventional fuel cell electrode. A method of manufacturing the cellulose electrode includes cutting cellulose fibers to a predetermined length and binding the fibers, or directly weaving the fibers, thus producing a cellulose sheet, directly growing carbon nanotubes on the cellulose sheet, and supporting a platinum nano-catalyst on the surface of the carbon nanotubes using chemical vapor deposition. An electrode including the cellulose fibers and use of cellulose fibers as fuel cell electrodes are also provided. As a novel functional material for fuel cell electrodes, porous cellulose fibers having micropores are used, thereby reducing electrode manufacturing costs and improving electrode performance. | 03-12-2009 |
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 |
20090087721 | SURFACE-MODIFIED CARBON MATERIAL AND METHOD FOR PRODUCING THE SAME - Disclosed is a surface-modified carbon material obtained by subjecting a carbon material to react with a benzyne. The surface-modified carbon material has high heat stability. | 04-02-2009 |
20090136827 | ENZYMES IMMOBILIZED IN HYDROPHOBICALLY MODIFIED POLYSACCHARIDES - Bioanodes, biocathodes, biofuel cells, immobilized enzymes and immobilization materials comprising a micellar hydrophobically modified polysaccharide are disclosed. In particular, the micellar hydrophobically modified polysaccharide can be a hydrophobically modified chitosan or a hydrophobically modified alginate. | 05-28-2009 |
20090142649 | BIOLOGICAL ELECTRODE WITH THE HYDROGENASE ENZYME, METHOD OF OBTAINING SAME AND APPLICATIONS THEREOF - The present invention relates to biological electrodes modified with hydrogenase enzymes (anodes), by means of which it is possible to produce electrical energy from hydrogen in a typical fuel cell configuration. Likewise, using these hydrogenase-modified electrodes (cathodes), it is possible to produce hydrogen from water in a typical electrochemical cell configuration. The methods of making the biological electrodes of the present invention and applications thereof are also described. | 06-04-2009 |
20090305113 | DIRECT ELECTRON TRANSFER USING ENZYMES IN BIOANODES, BIOCATHODES, AND BIOFUEL CELLS - Bioanodes, biocathodes, and biofuel cells comprising an electron conductor, at least one anode enzyme A) or cathode enzyme, and an enzyme immobilization material. The anode enzyme is capable of reacting with a fuel fluid to produce an oxidized form of the fuel fluid, and capable of releasing electrons to the electron conductor. The cathode enzyme is capable of reacting with an oxidant to produce water, and capable of gaining electrons from the electron conductor. The enzyme immobilization material for both the anode enzyme and the cathode enzyme is capable of immobilizing and stabilizing the enzyme, and is permeable to the fuel fluid and/or the oxidant. | 12-10-2009 |
20100015506 | CATALYST MATERIAL AND PROCESS FOR PREPARING THE SAME - A catalyst material that bears active species densely, thereby having higher catalytic performance and serviceability, for example, as an electrode for fuel cells. A catalyst material, wherein a conductive material whose surface physically adsorbs a polymerizable ligand having an electrochemically polymerizable heterocycle and an electron-withdrawing group bonded to the heterocycle or is coated with polynuclear complex molecules formed by electrochemical polymerization of the polymerizable ligand having an electrochemically polymerizable heterocycle and an electron-withdrawing group bonded to the heterocycle. A catalytic metal is coordinated to the adsorption layer of the polymerizable ligand having an electrochemically polymerizable heterocycle and an electron-withdrawing group bonded to the heterocycle, or to the coating layer of the polynuclear complex molecules. | 01-21-2010 |
20100047670 | ENZYME-IMMOBILIZED ELECTRODE, FUEL CELL, ELECTRONIC DEVICE, APPARTUS UTILIZING ENZYME REACTION, AND ENZYME-IMMOBILIZED SUBSTRATE - An enzyme-immobilized electrode is provided and includes an electrode composed of porous carbon or the like, a phospholipid layer on the electrode ( | 02-25-2010 |
20100081034 | SUPPORTED CATALYST AND METHOD OF PREPARING THE SAME - A method of preparing a supported catalyst includes dissolving a cation exchange polymer in alcohol to prepare a solution containing cation exchange polymer; mixing the cation exchange polymer containing solution with a catalytic metal precursor or a solution containing catalytic metal precursor; heating the mixture after adjusting its pH to a predetermined range; adding a reducing agent to the resultant and stirring the solution to reduce the catalytic metal precursor; mixing the resultant with a catalyst support; adding a precipitating agent to the resultant to form precipitates; and filtering and drying the precipitates. The method of preparing a supported catalyst can provide a highly dispersed supported catalyst containing catalytic metal particles with a reduced average size regardless of the type of catalyst support, which provides better catalytic activity than conventional catalysts at the same loading amount of catalytic metal. | 04-01-2010 |
20100099011 | ELECTRODE MORPHOLOGY VIA USE OF HIGH BOILING POINT CO-SOLVENTS IN ELECTRODE INKS - A method and device for operating a fuel cell system. The method includes applying a catalyst ink or related liquid that contains an electrocatalyst and electrolyte to a diffusion media so that the portion of the media that includes the electrocatalyst can function as a fuel cell electrode, specifically an anode or cathode. In addition to the electrocatalyst and electrolyte, the ink contains a solvent and a co-solvent, where the co-solvent has a boiling point that exceeds that of the solvent. Heating or related processing removes the solvent from the diffusion layer, but leaves at least some of the co-solvent in liquid form. This residual liquid reduces the likelihood of electrode cracking that may otherwise form during subsequent electrode processing. | 04-22-2010 |
20100112414 | FUEL CELL, USING OXIDOREDUCTASE TYPE ENZYMES IN THE CATHODIC COMPARTMENT AND POSSIBLY IN THE ANODIC COMPARTMENT - A proton exchange membrane fuel cell comprises an cathodic compartment including a cathode, an oxidant consisting of oxygen and at least one enzyme catalyst, an anodic compartment comprising an anode, a fuel and at least one catalyst. The anodic and cathodic compartments are arranged at either end of the membrane. The cell is characterized in that the enzyme catalyst of the anodic compartment is an oxidoreductase type enzyme capable of catalyzing the reduction of oxygen into hydrogen peroxide and the hydrogen peroxide is a direct receptor of the electrons from the cathode. | 05-06-2010 |