JP2722262B

• Main Authors: SHIMAMUNE TAKAYUKI, SEKIMOTO MASAO
• Format: Patent
• Language: English
• Published: 04.03.1998
• Edition: 6
• Subjects: APPARATUS THEREFOR; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION

PURPOSE:To obtain an electrolytic electrode excellent in electrode activity and corrosion resistance by forming a platinum coating layer containing lead dioxide on a valve metal (alloy) base material by an electrodeposition method, etc. CONSTITUTION:A solution prepared by suspending powdered lead dioxide in a platinum electrodeposition liquid is electrodeposited on a valve metal (alloy) base material, or, a solution prepared by suspending powdered lead dioxide in a liquid containing platinum salt is applied to a valve metal (alloy) base material to undergo thermal decomposition. By this method, the electrolytic electrode in which a platinum coating layer containing lead dioxide mainly of beta-type is formed on the surface of the valve metal (alloy) base material can be obtained.