| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To reduce power consumption in a variety of electrolysis and attain cost reduction in various electrolytic industries, by reactivating an electrode for generating hydrogen whose electrode performance has degraded due to increase of the hydrogen overvoltage, this increase being caused by deterioration of a catalyst layer on an electrode surface in use as the electrode for generating hydrogen in chlor-alkali electrolysis, water electrolysis or the like. <P>SOLUTION: An electrode for generating hydrogen, which is covered with an electrode catalyst containing at least one kind of noble metal, and whose performance has been degraded, is brought into contact with an aqueous solution containing an mineral acid. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
