| 摘要 |
PROBLEM TO BE SOLVED: To provide a cathode for electrolysis having high activity by using a platinum group metal catalyst by an amount smaller than that in the conventional cathode for electrolysis. SOLUTION: The cathode for electrolysis comprises: a conductive substrate; an intermediate layer formed on the surface of the conductive substrate and comprising an conductive oxide; and a catalyst layer formed on the surface of the intermediate layer and comprising at least one kind selected from silver and a silver oxide and at least one kind selected from a platinum group metal, a platinum group metal oxide and a platinum group metal hydroxide. The cathode has a form where the platinum group metal particulates or the compound particulates thereof are highly dispersed around and inside the silver or silver oxide grains. In this way, the effective electrolytic area of the platinum compound is made large, and the cathode exhibits satisfactory electrolytic properties even in the case the amount of the platinum group compound is small. COPYRIGHT: (C)2006,JPO&NCIPI
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