Uop Lcc

Alliedsignal Inc.

Sandra L Petty-Weeks

Joseph J Zupancic

Anthony J Polak

Raymond John Swedo

The amount of carbon monoxide or oxygen in a gas is measured by determining the change in dielectric properties of a polymer film disposed between two electrodes. A preferred polymer film comprises an organometallic gas carrier interdispersed within an interpenetrating polymer network matrix.

Dielectric sensors

Apparatus and method for detecting and measuring hydrogen and gaseous compounds capable of dissociating into or combining with hydrogen ions using a solid electrolyte concentration cell. A novel solid electrolyte membrane is used which comprises an organic polymer-inorganic compound blend prepared by admixing an organic polymer such as poly(vinyl alcohol) with a phosphoric acid in a mutually miscible solvent. A reference gas or a solid reference substance is used. For increased strength, a membrane may be composited with or attached to a porous support.

Gas detection apparatus and method with novel electrolyte membrane

Apparatus and method for performing an electrochemical process involving hydrogen and gaseous compounds capable of dissociating into or combining with hydrogen ions using a solid electrolyte concentration cell. Specific applications are fuel cells for producing an electrical current and separation of hydrogen from a gaseous mixture. A novel solid electrolyte membrane is used which comprises an organic polymer-inorganic compound blend prepared by admixing an organic polymer such as poly(vinyl alcohol) with a phosphoric acid in a mutually miscible solvent. For increased strength, a membrane may be composited with or attached to a porous support. In one embodiment, the membrane may be formed into a hollow fiber having electrically conductive particles with catalyst embedded in the fiber walls; a multiplicity of such fibers may be used to form a hydrogen separation device.

Hydrogen separation and electricity generation using novel electrolyte

Water-insoluble proton-conducting polymers which may be formed into membranes which are used in gas separation or gas sensing processes comprise an interpenetrating polymer network. This IPN is formed from the interaction between a host polymer and a guest polymer which is subsequently cross-linked or cured. The host polymer blend is formed from a phosphoric acid or sulfuric acid and a polymer or copolymer of a compound which possesses repeat units such as, for example, hydroxy ethylene, vinyl sulfonic acid, ethylene imine, etc, while the guest polymer is formed from a monofunctional monomer such as methacrylic acid and a difunctional cross-linking agent such as methylenebisacrylamide.

Water insoluble proton conducting polymers

Gas separation membranes comprising an inorganic compound-organic polymer blend may be prepared by admixing an organic polymer such as poly(vinyl alcohol) with a phosphoric acid or sulfuric acid in a mutually miscible solvent. After allowing the mixture to proceed for a period of time sufficient to form a blend, the solution may be cast on an appropriate casting surface and, after the solvent has been evaporated, the desired membrane which may have a thickness of from about 0.1 to about 100 microns, is recovered.

Thin film polymer blend membranes

Apparatus and method for performing an electrochemical process involving hydrogen and gaseous compounds capable of dissociating into or combining with hydrogen ions using a solid electrolyte concentration cell. Specific applications are fuel cells for producing an electrical current and separation of hydrogen from a gaseous mixture. A novel proton-conducting membrane comprised of an interpenetrating polymer network serves as the solid electrolyte. For increased strength, a membrane may be composited with or utilized with a porous support.

Electrochemical method and apparatus using proton-conducting polymers

Apparatus and method for detecting and measuring hydrogen and gaseous compounds capable of dissociating into or combining with hydrogen ions using a solid electrolyte concentration cell. A novel proton-conducting membrane comprised of an interpenetrating polymer network serves as the solid electrolyte. A reference gas or a solid reference substance is used. For increased strength, a membrane may be composited with or utilized with a porous support.

Method and apparatus for gas detection using proton-conducting polymers

Apparatus and method for detecting and measuring hydrogen and gaseous compounds capable of dissociating into or combining with hydrogen ions using a solid electrolyte concentration cell. A novel solid electrolyte membrane is used which comprises a three-component blend prepared by admixing an organic polymer or copolymer, such as poly(vinyl alcohol), with an inorganic compound, such as a phosphoric acid, and an organic compound selected from a group of polymers and copolymers having monomer units containing nitrogen, oxygen, or sulfur atoms, such as poly(vinyl pyrrolidone), in a mutually miscible solvent. A reference gas or a solid reference substance is used. For increased strength, a membrane may be composited with or attached to a porous support.

Growing community of inventors

Naperville, IL, United States of America

Sandra L Petty-Weeks