摘要:
There is disclosed a heat-sterilizable spiral-wound filtration module having an outer shell comprising a cord, fabric or laminate consisting of a heat-resistant rigid first polymer encased within a thermoplastic second polymer.
摘要:
A process for cross-linking a cellulose hydrate membrane by use of a water-soluble diepoxide in an alkaline solution. The membrane so produced is highly resistant to attack by alkalis, acids and cellulases, and is readily regenerable by alkaline cleaning.
摘要:
The present invention relates to a microarray device for the screening or the finding of protein inhibitors, to a method for the production thereof, and to a corresponding method for screening or finding protein inhibitors. The microarray device according to the invention comprises a solid supporting element having a support material, at least one protein immobilized thereon for which inhibitors are to be screened or found, and at least one known inhibitor of the at least one protein, the inhibitor being bound to the at least one protein and comprising a detectable label.
摘要:
A membrane-electrode assembly and polymer electrolyte fuel cells and methods of production thereof, in which a polymer membrane, containing at least one basic polymer membrane, is sandwiched between two flat gas diffusion electrodes each of which is loaded with a dopant, whereby after reaching a mass transport equilibrium for the exchange of the dopant between the gas diffusion electrodes and the polymer membrane, the polymer membrane has a conductivity of at least 0.1 S/m at a temperature of no less than 25° C.
摘要:
The present invention relates to a polymer electrolyte membrane for fuel cells, comprising a polymer matrix of at least one basic polymer and one or more doping agents, wherein particles containing ionogenic groups and having a mean particle diameter in the nanometer range are embedded in the polymer matrix and the particles containing ionogenic groups are distributed homogeneously in the polymer matrix in a concentration of less than 50% relative to the weight of the polymer matrix, as well as to the production and use of same, especially in high-temperature fuel cells.
摘要:
The present invention relates to a microarray device for the screening or the finding of protein inhibitors, to a method for the production thereof, and to a corresponding method for screening or finding protein inhibitors. The microarray device according to the invention comprises a solid supporting element having a support material, at least one protein immobilized thereon for which inhibitors are to be screened or found, and at least one known inhibitor of the at least one protein, the inhibitor being bound to the at least one protein and comprising a detectable label.
摘要:
The invention relates to the use of a material imparting proton conductivity in the production of fuel cells, said material consisting of monomer units and having an irregular shape.
摘要:
The invention relates to a fuel-cell installation comprising: a reformer stage, which can be heated by a gas burner in order to carry out the water-vapour reformation of hydrocarbon and water-vapour into hydrogen and additional reformer products; at least one conversion stage, which is connected downstream of the reformer stage for the chemical preparation of the reformer products; and at least one fuel-cell stack, which is connected downstream of the conversion stage and comprises a plurality of anodes and cathodes with corresponding supply and discharge connections for converting the hydrogen into water to generate an electric current and heat. The fuel-cell stack is configured as a high-temperature fuel-cell stack with an operating temperature between about 100° C. and about 200° C., the conversion stage is connected on the output side, without heat exchange, to the supply connection of the anode of the fuel-cell stack and the discharge connection of the anode of the fuel-cell stack is connected to an air supply connection on the gas burner. During the activation and/or deactivation of the fuel-cell installation, the air that has flowed through the reformer stage and the conversion stage can be selectively supplied to the anode of the fuel cell stack.
摘要:
The invention relates to a fuel-cell stack with an external media supply, comprising a plurality of stacked fuel-cell elements, each containing a proton-conductive polymer membrane, which is located between a flat anode electrode and a flat cathode electrode, each electrode being in contact with a separator plate containing canal structures for supplying a reaction gas, evacuating superfluous reaction gas and water that has been produced and/or for distributing a heat transfer medium. At least one collection/distribution container, which is connected to the canal structures of a plurality of separator plates, distributes the reaction gas or the heat transfer medium or collects superfluous reaction gas and water that has been produced or the heat transfer medium. The collection/distribution container is configured as a hood that covers a plurality of fuel-cell elements, the edge of said hood being sealed in relation to the covered elements. The seal comprises at least a first sealing layer that is configured as a solid seal and a second sealing layer, which is in direct contact with the covered fuel-cell elements and at least partially compensates the offsets between the neighbouring fuel-cell elements, the second sealing layer consisting of a highly viscous plastic with permanent plastic characteristics.
摘要:
Gas diffusion electrodes with improved proton conduction between an electrocatalyst located in a catalyst layer and an adjacent polymer electrolyte membrane, capable of being used at operating temperatures up to or above the boiling point of water, ensuring lasting high gas permeability. Also, a production method and corresponding fuel cells. At least one part of the particles of an electrically conductive carrier material in the catalyst layer is at least partially loaded with at least one porous, proton-conducting polymer which can be used up to or above the boiling point of water. Loading and development of the porous structure is carried out in a phase inversion method. The gas diffusion electrodes can be used in high temperature fuel cells working at temperatures up to or above the boiling temperature of water without a drop in performance in continuous operation.