| Patent application number | Description | Published |
|---|
| 20090208809 | POLYMER ELECTROLYTES INCLUDING HETEROPOLYACIDS - This disclosure provides polymer electrolytes, polymer electrolyte membranes (PEM's) and membrane electrode assemblies (MEA's) such as may be useful in fuel cells which contain or comprise polyoxometalates (POM's) or heteropolyacids (HPA's). In some embodiments the polyoxometalate, it's counterions or both may comprise Mn and/or Ce. In some embodiments the polymer electrolyte is fluorinated. In some embodiments the polymer electrolyte comprises a second acidic functional group other than a polyoxometalate. In another aspect, the present disclosure provides methods of making polymer electrolytes including methods which comprising a step of copolymerizing monomers comprising a covalently bound polyoxometalates and methods which comprise a step of covalently attaching a polyoxometalate to the polymer. | 08-20-2009 |
| 20090215615 | METHOD OF FORMING SUPPORTED NANOPARTICLE CATALYSTS - A method of forming a supported catalyst, the method comprising forming a colloidal suspension of platinum-iron catalyst nanoparticles in a solvent, depositing at least a portion of the catalyst nanoparticles onto support particles, and removing at least a portion of the iron from the deposited catalyst nanoparticles. | 08-27-2009 |
| 20090297916 | FUEL CELL MEMBRANE ELECTRODE ASSEMBLY - Fuel cell membrane electrode assemblies and fuel cell polymer electrolyte membranes are provided comprising bound anionic functional groups and polyvalent cations, such as Mn or Ru cations, which demonstrate increased durability. Methods of making same are also provided. | 12-03-2009 |
| 20090325030 | FUEL CELL ELECTROLYTE MEMBRANE WITH ACIDIC POLYMER - An electrolyte membrane is formed by an acidic polymer and a low-volatility acid that is fluorinated, substantially free of basic groups, and is either oligomeric or non-polymeric. | 12-31-2009 |
| 20100062314 | DURABLE FUEL CELL - Fuel cell membrane electrode assemblies and fuel cell polymer electrolyte membranes are provided comprising manganese oxides which demonstrate increased durability. Methods of making same are provided. | 03-11-2010 |
| 20100316932 | FUEL CELL MEMBRANE ELECTRODE ASSEMBLY - Fuel cell membrane electrode assemblies and fuel cell polymer electrolyte membranes are provided comprising bound anionic functional groups and polyvalent cations, such as Mn or Ru cations, which demonstrate increased durability. Methods of making same are also provided. | 12-16-2010 |
| 20110000615 | FUEL CELL ELECTROLYTE MEMBRANE WITH BASIC POLYMER - The present invention is an electrolyte membrane comprising an acid and a basic polymer, where the acid is a low-volatile acid that is fluorinated and is either oligomeric or non-polymeric, and where the basic polymer is protonated by the acid and is stable to hydrolysis. | 01-06-2011 |
| 20110151353 | FUEL CELL ELECTRODE WITH NANOSTRUCTURED CATALYST AND DISPERSED CATALYST SUBLAYER - Polymer electrolyte membrane (PEM) fuel cell membrane electrode assemblies (MEA's) are provided which have nanostructured thin film (NSTF) catalyst electrodes and additionally a sublayer of dispersed catalyst situated between the NSTF catalyst and the PEM of the MEA. | 06-23-2011 |
