University of Iowa Research Foundation

Akermin, Inc.

Wayne L Gellett

Johna Leddy

Robert Clayton

Robert Page Shirtum

Drew C Dunwoody

Tracy L Bucholz

Joshua Schumacher

Richard T Zvosec

Shelley D Minteer

Angela Wolf

Murat Ünlü

Disclosed are self-hydrating membrane electrode assemblies (MEAs), including MEAs that have been magnetically modified, which comprises (i) a cathode comprising an electrically conducting material having a catalytic material on at least a portion of a first surface thereof, the catalytic material comprising an effective amount of at least one catalyst component and at least one ion conducting material; (ii) a separator adjacent to and in substantial contact with the first surface of the cathode and comprising an ion conducting material; and (iii) an anode adjacent to and in substantial contact with the surface of the separator opposite the cathode and comprising an electrically conducting material having a catalytic material on at least a portion of a surface thereof adjacent to the separator, the catalytic material comprising an effective amount of at least one catalyst component and at least one ion conducting material; wherein the separator permits water to pass from the first surface of the cathode to the surface of the anode in an amount sufficient to sustain hydration of the anode and further wherein the cathode produces sufficient water to sustain hydration of the anode. Also disclosed are methods of manufacture of the self-hydrating MEAs, as well as fuel cells that require only a self-hydrating MEA and a source of fuel.

Self-hydrating membrane electrode assemblies for fuel cells

The present invention generally relates to the removal of carbon dioxide from a gas stream, particularly a flue gas, hydrogen gas from a reformer, natural gas, or gas from a cement kiln. Immobilized enzymes for use in carbon capture and other systems are also disclosed.

Process for accelerated capture of carbon dioxide

An electrically conducting electrode having a composite and a current collector in electrical contact with the composite, the composite can comprise at least about 10 weight percent electrically conductive particles, at least about 0.5 weight percent magnetic particles, and an optional polymeric binder, wherein composite is at least about 80 weight percent with respect to the combined weight of the electrically conductive particles, the magnetic particles and the binder. Electrochemical systems can effectively use these electrodes to improve system performance.

Magnet incorporated electrically conductive electrodes

New magnetic materials and new metallic particles, new methods of making and using same, for example, to prepare magnetically modified electrodes and fuel cells, and coated metallic particles in general. The present invention discloses methods of preparation of cheaper and more uniformly sized magnetic and metallic microparticles formed from the exemplary materials magnetite, nickel, samarium cobalt and neodymium iron boron. In addition, the present invention discloses methodology for preparation and use of coated magnetic and metallic microparticles, in particular, exemplary siloxyl coating of magnetic particles, metallic particles, and magnetic and metallic microparticles with an exemplary silane, 3-aminopropyltrimethoxysilane, that is cross linked thereon. In addition, methods and results are described for preparing and using larger siloxyl coated samarium cobalt milliparticles. Coated magnetic milliparticles and magnetic microparticles are useful as component of composites that are applied to electrodes to alter electrochemical fluxes across those electrodes, as well as to alter chemical reactions on surfaces of those electrodes, when magnetically susceptible reactions occur there.

Magnetic materials and metallic particles and methods of making same

Growing community of inventors

Ballwin, MO, United States of America

Wayne L Gellett