Basf Se Corporation

Basf Schweiz Ag

Sigmar Bräuninger

Brian C Benicewicz

Gordon Calundann

Jörg Belack

Guoqing Qian

Ömer Ünsal

Ekkehard Schwab

Jens Scheidel

Alexander Panchenko

Emory Sayre De Castro

Arnd Garsuch

Oliver Gronwald

Alfred Thome

Bernd Bastian Schaack

Claudia Querner

Moritz Ehrenstein

Andrew Van Dyke

Detlef Ott

Werner Urban

Seonghan Yu

Max Molleo

Gunter Bechtloff

Eva Mutoro

Brian Prof Benicewicz

The present invention relates to a novel proton-conducting polymer membrane based on polyazole polymers which, owing to their outstanding chemical and thermal properties, can be used widely and are suitable in particular as polymer electrolyte membrane (PEM) for producing membrane electrode assemblies or so-called PEM fuel cells.

Proton-conducting membrane, method for their production and their use in electrochemical cells

The present invention relates to membrane electrode units (MEU) for high temperature fuel cells having an improved stability and a process for their manufacture.

Membrane electrode units for high temperature fuel cells with improved stability

Proton-conducting membrane and use thereof

The invention relates to improved polymer membranes, to processes for production thereof and to the use thereof.

Polymer membranes, processes for production thereof and use thereof

A process for preparing a catalyst material comprising an electrically conducting support material, a proton-conducting, polyazole-based polymer and a catalytically active material. A catalyst material prepared by the process of the invention. A catalyst ink comprising a catalyst material of the invention and a solvent. A catalyst-coated membrane (CCM) comprising a polymer electrolyte membrane and also catalytically active layers comprising a catalyst material of the present invention. A gas diffusion electrode (GDE) comprising a gas diffusion layer and a catalytically active layer comprising a catalyst material of the invention. A membrane-electrode assembly (MEA) comprising a polymer electrolyte membrane, catalytically active layers comprising a catalyst material of the invention, and gas diffusion layers. And a fuel cell comprising a membrane-electrode assembly of the present invention.

Catalyst support material comprising polyazole, electrochemical catalyst, and the preparation of a gas diffusion electrode and a membrane-electrode assembly therefrom

Proton-conducting polymer electrolyte membrane based on a polyazole salt of an inorganic or organic acid which is doped with an acid as electrolyte, wherein the polyazole salt of the organic or inorganic acid has a lower solubility in the acid used as electrolyte than the polyazole salt of the acid used as electrolyte, a process for producing the inventive proton-conducting polymer electrolyte membrane, a membrane-electrode assembly comprising at least two electrochemically active electrodes which are separated by a polymer electrolyte membrane, wherein the polymer electrolyte membrane is a proton-conducting polymer electrolyte membrane according to the invention, and a fuel cell comprising at least one membrane-electrode assembly according to the invention.

Polymer electrolyte membrane based on polyazole

Process for working up an exhaust gas from a system for producing hydroxylamine or hydroxylammonium salts by catalytic reduction of nitrogen monoxide with hydrogen, the exhaust gas containing nitrogen monoxide, hydrogen, dinitrogen monoxide, nitrogen and ammonia. At least some of the hydrogen present in the exhaust gas is separated off from the exhaust gas by means of a gas-tight membrane-electrode assembly which comprises at least one selectively proton-conducting membrane, a retentate side, a permeate side, and, on each side of the membrane, at least one electrode catalyst, wherein, on the retentate side of the membrane, at least some of the hydrogen is oxidized to protons at the anode catalyst and the protons, after crossing the membrane, are, on the permeate side, at the cathode catalyst according to (I) reduced to hydrogen and/or (II) reacted with oxygen to form water, the oxygen originating from an oxygen-containing stream which is contacted with the permeate side.

Process for working up an exhaust gas from a system for producing hydroxylamine or hydroxylammonium salts

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Hemsback, Germany

Sigmar Bräuninger