| 摘要 |
<p>An electrolyzing electrode which is for electrolyzing a metal electrolytic solution, shows a long lifetime in use as an ordinary anode and has sufficient durability even when in a poor potential region, and a process for the production thereof. The electrolyzing electrode of the present invention has an undercoating layer which is formed of platinum metal and tantalum oxide and contains, as metals, 1 to 20 at% of platinum and 80 to 99 at% of tantalum, on an electrically conductive electrode substrate, has an intermediate layer which is formed of iridium oxide and tantalum oxide and contains, as metals, 70 to 99.9 at% of iridium and 0.1 to 30 at% of tantalum, on the undercoating layer, and further has an overcoating layer which is formed of platinum metal and iridium oxide and contains, as metals, 60 to 99.9 at% of platinum and 0.1 to 40 at% of iridium, on the intermediate layer.</p> |
