| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an electrode for producing oxygen capable of reducing the amount used of noble metal in an intermediate layer, assuring satisfactory conductivity and improving performance and endurance of an electrode active substance, in regard to the electrode for producing oxygen formed by covering an electrode substrate made of Ti with an intermediate layer for preventing oxidation of Ti and, thereon, covering the electrode substrate covered with the intermediate layer with a conjugate oxide primarily comprising Mn as the electrode active substance, as the anode for producing no chlorine and producing only oxygen in the electrolysis of an aqueous solution containing chlorine ion like sea water. <P>SOLUTION: A conjugated oxide having a composition which comprises Sn of 50 to 95 mol% and platinum group of the remaining content, on the basis of atomic % for total cation, is formed as an intermediate layer (A) on the electrode substrate made of Ti according to a baking method and, thereon, a conjugated oxide having a composition in which one or two kinds of Mo and W (in the case of two kinds, the sum of them is presented) occupies 0.2 to 20 mol% and Mn occupies the remaining content, on the basis of atomic % for total cation, is formed as a layer of an electrode active material (B) according to an anode deposition method. Preferably, 0.1 to 3 mol% of one or two kinds of Mo and W is substituted for Sn. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
