| 摘要 |
A hydrogen generator includes a composite electrolytic cell comprising a pair of membrane electrode assemblies 1, 17 each incorporating a solid polymer electrolyte 2a polarised so as to generate hydrogen from water at a cathode and oxygen at an anode, the electrode assemblies dividing the interior of the generator into three successive chambers 11, 12, 23 including a common chamber 11 in which the respective cathode surfaces of the two electrode assemblies face each other, wherein the only external supply of liquid water 2 is to the chamber 12 bounded by the anode surface of the first electrode assembly 1. The polymer electrolyte is preferably a proton conducting polymer. The generator may comprise a comparator for measuring the ratio of respective currents passing through the first and second electrode assemblies. Also disclosed is a method of generating dry hydrogen using the generator of the invention, in which both cathodes generate hydrogen in the common chamber from water passing through the first electrode assembly. |
