(ZA9803530-A)      Gas generator comprises a layer of a first material with a layer of second material on one surface and a layer of third material on the other opposing surface. The application of an external potential results in a flow of gas from one side of the generator to another, the first material being an electrolyte material and the second and third materials being mixed conductors. A method for generating a gas involves providing the above generator and providing an external potential.    USE -   For use in generating gases especially oxygen or gases for chemical reactions or for forming carbon dioxide and hydrogen from methane.    ADVANTAGE -   Provides high gas flow rate with maximum efficiency at lower operating temperature.    (EP979134-A1)      Gas generator comprises a layer of a first material with a layer of second material on one surface and a layer of third material on the other opposing surface. The application of an external potential results in a flow of gas from one side of the generator to another, the first material being an electrolyte material and the second and third materials being mixed conductors. A method for generating a gas involves providing the above generator and providing an external potential.    USE -   For use in generating gases especially oxygen or gases for chemical reactions or for forming carbon dioxide and hydrogen from methane.    ADVANTAGE -   Provides high gas flow rate with maximum efficiency at lower operating temperature.    (US6264820-B1)      Gas generator comprises a layer of a first material with a layer of second material on one surface and a layer of third material on the other opposing surface. The application of an external potential results in a flow of gas from one side of the generator to another, the first material being an electrolyte material and the second and third materials being mixed conductors. A method for generating a gas involves providing the above generator and providing an external potential.    USE -   For use in generating gases especially oxygen or gases for chemical reactions or for forming carbon dioxide and hydrogen from methane.    ADVANTAGE -   Provides high gas flow rate with maximum efficiency at lower operating temperature.