Patent application number | Description | Published |
20100304268 | TERNARY ALLOY CATALYSTS FOR FUEL CELLS - Alloy catalysts have the formula of Pt | 12-02-2010 |
20100304960 | ALLOY FUEL CELL CATALYSTS - Alloy catalysts have the formula of PtXRh, wherein X represents one or two elements from the group consisting of Ti, Mn, Co, V, Cr, Ni, Cu, Zr, Zn, Fe, Ru, Pd, Re, Os, Ir, and Au. These catalysts can be used as electrocatalysts in fuel cells. | 12-02-2010 |
Patent application number | Description | Published |
20110136046 | FUEL CELL CATALYST SUPPORT WITH FLUORIDE-DOPED METAL OXIDES/PHOSPHATES AND METHOD OF MANUFACTURING SAME - A fuel cell catalyst support includes a fluoride-doped metal oxide/phosphate support structure and a catalyst layer, supported on such fluoride-doped support structure. In one example, the support structure is a sub-stechiometric titanium oxide and/or indium-tin oxide (ITO) partially coated or mixed with a fluoride-doped metal oxide or metal phosphate. In another example, the support structure is fluoride-doped and mixed with at least one of low surface carbon, boron-doped diamond, carbides, borides, and silicides. | 06-09-2011 |
20110136047 | FUEL CELL CATALYST SUPPORT WITH BORON CARBIDE-COATED METAL OXIDES/PHOSPHATES AND METHOD OF MANUFACTURING SAME - A fuel cell catalyst support includes a support structure having a metal oxide and/or a metal phosphate coated with a layer of boron carbide. Example metal oxides include titanium oxide, zirconium oxide, tungsten oxide, tantalum oxide, niobium oxide and oxides of yttrium, molybdenum, indium, and tin and their phosphates. A boron carbide layer is arranged on the support structure by a chemical or mechanical process, for example. Finally, a catalyst layer is deposited on the boron carbide layer. | 06-09-2011 |
20110311904 | BORON-DOPED DIAMOND COATED CATALYST SUPPORT - A catalyst support for an electrochemical system includes a high surface area refractory material core structure and boron-doped diamond. The BDD modifies the high surface area refractory material core structure. | 12-22-2011 |
20120003569 | METHOD OF FORMING A TERNARY ALLOY CATALYST FOR FUEL CELL - A method of forming a supported catalyst for a fuel cell includes depositing platinum onto a carbon support material, depositing a first alloy metal onto the carbon support material following the deposition of the platinum, and depositing a second alloy metal onto the carbon support material following the deposition of the first alloy metal. The first alloy metal is selected from iridium, rhodium, palladium, and combinations thereof, and the second alloy metal includes a first or second row transition metal. | 01-05-2012 |
20120015284 | BORON-DOPED DIAMOND COATED CARBON CATALYST SUPPORT - A catalyst support for an electrochemical system includes a high surface area carbon core structure and a surface modifier modifying the surface of the carbon core structure. The surface modifier includes boron-doped diamond (BDD) and a high surface area refractory material. The high surface area refractory material includes metal oxides, metal phosphates, metal borides, metal nitrides, metal silicides, metal carbides and combinations thereof. | 01-19-2012 |
20120190536 | SUPPORTED CATALYST - A supported catalyst is prepared by a process that includes establishing shell-removal conditions for a supported catalyst intermediate that includes capped nanoparticles of a catalyst material dispersed on a carbon support. The capped nanoparticles each include a platinum alloy core capped in an organic shell. The shell-removal conditions include an elevated temperature and an inert gas atmosphere that is substantially free of oxygen. The organic shell is removed from the platinum alloy core under the shell-removal conditions to limit thermal decomposition of the carbon support and thereby limit agglomeration of the catalyst material such that the supported catalyst includes an electrochemical surface area of at least 30 m | 07-26-2012 |
20120258854 | METHOD FOR TREATING A SUPPORTED CATALYST - A method for treating a supported catalyst includes establishing shell-removal conditions for a supported catalyst that includes nanoparticles of a catalyst material on a carbon support. The nanoparticles each include a platinum alloy core capped in an organic shell. The shell-removal conditions include an elevated temperature and an inert gas atmosphere that is substantially free of oxygen. The organic shell is then removed from the platinum alloy core in the shell-removal conditions. | 10-11-2012 |
20120308916 | PLATINUM NANOPARTICLES HAVING HOLLOW SKELETAL STRUCTURES AND METHODS OF MAKING - A nanoparticle includes a noble metal skeletal structure. The noble metal skeletal structure is formed as an atomically thin layer of noble metal atoms that has a hollow center. | 12-06-2012 |
20120309615 | PLATINUM MONOLAYER ON ALLOY NANOPARTICLES WITH HIGH SURFACE AREAS AND METHODS OF MAKING - A catalytic nanoparticle includes a porous core and an atomically thin layer of platinum atoms on the core. The core is a porous palladium, palladium-M or platinum-M core, where M is selected from the group consisting of gold, iridium, osmium, palladium, rhenium, rhodium and ruthenium. | 12-06-2012 |
20120316060 | PLATINUM MONOLAYER ON HOLLOW, POROUS NANOPARTICLES WITH HIGH SURFACE AREAS AND METHOD OF MAKING - A catalytic nanoparticle includes a porous, hollow core and an atomically thin layer of platinum atoms on the core. The core is a porous palladium, palladium-M or platinum-M core, where M is selected from the group consisting of gold, iridium, osmium, palladium, rhenium, rhodium and ruthenium. | 12-13-2012 |
20130011771 | SUPPORTED CATALYST - A supported catalyst includes a plurality of support particles that each include a carbon support and a layer disposed around the carbon support. The layer is selected from a metal carbide, metal oxycarbide, and combinations thereof. A catalytic material is disposed on the layers of the support particles. | 01-10-2013 |
20130340915 | PLATINUM MONOLAYER FOR FUEL CELL - An example fuel cell electrode forming method includes covering at least a portion of a copper monolayer with a liquid platinum and replacing the copper monolayer to form a platinum monolayer from the liquid platinum. | 12-26-2013 |
20140356757 | FUEL CELL ELECTRODE WITH GRADIENT CATALYST STRUCTURE - An example of a stable electrode structure is to use a gradient electrode that employs large platinum particle catalyst in the close proximity to the membrane supported on conventional carbon and small platinum particles in the section of the electrode closer to a GDL supported on a stabilized carbon. Some electrode parameters that contribute to electrode performance stability and reduced change in ECA are platinum-to-carbon ratio, size of platinum particles in various parts of the electrode, use of other stable catalysts instead of large particle size platinum (alloy, etc), depth of each gradient sublayer. Another example of a stable electrode structure is to use a mixture of platinum particle sizes on a carbon support, such as using platinum particles that may be 6 nanometers and 3 nanometers. A conductive support is typically one or more of the carbon blacks. | 12-04-2014 |