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AssigneesPulp and Paper Research Institute of Canada, Ecole Polytechnique
InventorsArthur Yelon, Michael Paleologou, Dentcho Ivanov, Ricardo Izquierdo, Michel Meunier
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A composite membrane is disclosed fabricated by depositing an inorganic ion-conducting thin film on a cation-selective organic polymer membrane substrate using Pulse Laser Deposition (PLD) or reactive magnetron sputtering. The fabricated membrane combines the advantages of the polymeric membrane including flexibility and low electrical resistance, with the advantages of the inorganic membrane film including resistance to fouling, high selectivity for alkali metal ions over hydrogen ions and resistance to oxidizing chemicals; electromembrane systems and processes for example alkali metal sensing electrodes and other membrane-based electrochemical detectors, electrolytic and electrodialytic systems incorporate such membranes thus improving their performance in terms of current efficiency, salt to acid conversion ratio, reliable operation and membrane life.
A flexible composite cation-selective membrane comprising:
A method of producing a flexible composite cation-selective membrane comprising:
In an electromembrane system in which a cation-selective membrane is disposed in a cell between an anode and a cathode and cations in the cell migrate through said membrane towards said cathode, the improvement wherein said cation-selective membrane is a composite membrane comprising
In a system for detection or quantitation of a chemical species in a cell having an electrode probe and a cation-selective membrane, the improvement wherein said cation-selective membrane is a composite membrane comprising
In an electromembrane cell comprising an anode and a cathode with a cation-selective membrane therebetween, the improvement wherein said cation-selective membrane is a composite membrane comprising
Dependencies are inferred from the claim text.