To provide an electrode for electrolysis which contains an intermediate layer more excellent in peeling resistance and corrosion resistance than the conventional electrode for electrolysis, has an electrolysis life longer than that of the same and causes a large electric current at an industrial level to flow, and to provide its production method.
The electrode for electrolysis is obtained by coating the surface of a high temperature oxide film for a valve metal or valve metal alloy electrode substrate 1 whose surface is oxidized to form the high temperature oxide film 2, with an electrode catalyst 3. The high temperature oxide film is integrated with the electrode substrate to improve its peeling resistance. Further, by the heating of the high temperature oxide film together with the electrode catalyst, the non-electronic conductivity of the intermediate layer is reformed into electronic conductivity, so that the large electric current can be caused to flow.
COPYRIGHT: (C)2005,JPO&NCIPI
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Noritsugu Nakama
Hiroyuki Mori