Patent application number | Description | Published |
20100084792 | POLYMER-ZEOLITE NANOCOMPOSITE MEMBRANES FOR PROTON-EXCHANGE-MEMBRANE FUEL CELLS - A suite of polymer/zeolite nanocomposite membranes. The polymer backbone is preferably a film forming fluorinated sulfonic acid containing copolymer, such as a Teflon type polymer, a perfluorinated polymer, or a perfluorinated polymer with sulfonic groups. The zeolites formed in accordance with the present invention and which are used in the membranes are plain, phenethyl functionalized and acid functionalized zeolite FAU(Y) and BEA nanocrystals. The zeolite nanocrystals are incorporated into polymer matrices for membrane separation applications like gas separations, and in polymer-exchange-membrane fuel cells. For the purpose of developing zeolite-polymer nanocomposite membranes, the zeolite nanocrystals are size-adjustable to match the polymer-network dimensions. | 04-08-2010 |
20100119736 | AMBIENT PRESSURE SYNTHESIS OF ZEOLITE FILMS AND THEIR APPLICATION AS CORROSION RESISTANT COATINGS - A method for producing zeolite films or membranes at essentially ambient pressure, which includes preparing a synthesis mixture comprising an ionic liquid solvent and an aluminum and/or silicon and/or phosphate source and converting the synthesis mixture to form a continuous zeolite layer. In addition, a method of synthesizing zeolite nanocrystals, which includes preparing a synthesis mixture, the synthesis mixture having a silica or a silica and alumina source, and a template; and synthesizing the synthesis mixture to form zeolite nanocrystals. | 05-13-2010 |
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 |
20100249445 | POST-SPIN-ON SILYLATION METHOD FOR HYDROPHOBIC AND HYDROFLUORIC ACID-RESISTANT POROUS SILICA FILMS - A method of silylating porous silica films comprises: preparing a porous silica film; and grafting the film with a hydrophobic functional group while annealing the film. The porous silica film is a sol-gel silica film, a mesoporous silica film, in situ crystallized polycrystalline pure-silica zeolite (PSZ), spin-on PSZ, and spin-on PSZ MEL (or PSZ MEL-structural type) films. The hydrophobic functional group is trimethylchlorosilane (TMCS); dimethyldichlorosilane; methyltrichlorosilane; alkylchlorosilanes, such as (CH | 09-30-2010 |
20110027599 | Nanocomposite membranes and methods of making and using same - Disclosed are nanocomposite membranes and methods for making and using same. In one aspect, the nanocomposite membrane comprises a film comprising a polymer matrix and nanoparticles disposed within the polymer matrix, wherein the film is substantially permeable to water and substantially impermeable to impurities. In a further aspect, the membrane can further comprise a hydrophilic layer. In a further aspect, the nanocomposite membrane comprises a film having a face, the film comprising a polymer matrix, a hydrophilic layer proximate to the face, and nanoparticles disposed within the hydrophilic layer, wherein the film is substantially permeable to water and substantially impermeable to impurities. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention. | 02-03-2011 |
20110097570 | WEAR AND CORROSION RESISTANT ZEOLITE COATING - The present invention provides a wear and/or corrosion-resistant zeolite coating for protection of the surface of a substrate of a metal. | 04-28-2011 |
20110118492 | POLYMER-ZEOLITE NANOCOMPOSITE MEMBRANES FOR PROTON-EXCHANGE-MEMBRANE FUEL CELLS - A suite of polymer/zeolite nanocomposite membranes. The polymer backbone is preferably a film forming fluorinated sulfonic acid containing copolymer, such as a Teflon type polymer, a perfluorinated polymer, or a perfluorinated polymer with sulfonic groups. The zeolites formed in accordance with the present invention and which are used in the membranes are plain, phenethyl functionalized and acid functionalized zeolite FAU(Y) and BEA nanocrystals. The zeolite nanocrystals are incorporated into polymer matrices for membrane separation applications like gas separations, and in polymer-exchange-membrane fuel cells. For the purpose of developing zeolite-polymer nanocomposite membranes, the zeolite nanocrystals are size-adjustable to match the polymer-network dimensions. | 05-19-2011 |
20110129925 | ZEOLITE AND BONE MIMETIC ZEOLITE BASED COATINGS FOR BIOIMPLANTS - The disclosure provides biocompatible metal compositions, methods of making such compositions and uses thereof, including a method of synthesizing zeolite coatings. The disclosure further provides the zeolite-hydroxyapatite composite coatings and methods of making them, which includes forming a base zeolite layer, forming a hydroxyapatite layer on the base zeolite layer, and interlocking the hydroxyapatite layer with an outer zeolite layer. The composite can be formed on a metal substrate for bioimplants, such as titanium alloy and/or stainless steel, which is used for bioimplants. | 06-02-2011 |
20110237690 | HIGHLY BASIC IONOMERS AND MEMBRANES AND ANION/HYDROXIDE EXCHANGE FUEL CELLS COMPRISING THE IONOMERS AND MEMBRANES - This invention provides a family of functionalized polymers capable of forming membranes having exceptional OH | 09-29-2011 |
20110300718 | ON-WAFER CRYSTALLIZATION FOR PURE-SILICA-ZEOLITE ULTRA LOW-K FILMS - An on-wafer crystallization method of spin-coating a silicon wafer with a low-k dielectric zeolite material which includes the steps of forming a synthesis solution; generating a nucleated precursor solution; spin-coating the nucleated precursor onto a substrate as a precursor film; and annealing the precursor film into a zeolite film. | 12-08-2011 |
20120119410 | HIGHLY BASIC IONOMERS AND MEMBRANES AND ANION/HYDROXIDE EXCHANGE FUEL CELLS COMPRISING THE IONOMERS AND MEMBRANES - A family of functionalized polymers is provided capable of forming membranes having exceptional OH | 05-17-2012 |
20130164652 | 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. | 06-27-2013 |
20140221509 | HIGHLY BASIC IONOMERS AND MEMBRANES AND ANION/HYDROXIDE EXCHANGE FUEL CELLS COMPRISING THE IONOMERS AND MEMBRANES - This invention provides a family of functionalized polymers capable of forming membranes having exceptional OH | 08-07-2014 |