发明专利
JP2012062556A Electrode for electrolysis, positive electrode for ozone generation by electrolysis, positive electrode for persulfuric acid generation by electrolysis, and positive electrode for chromium electrolytic oxidation
有权
用于电解电极的电极，用于电解生成的臭氧的阳极电极，用于电解生成的酸性电极的阳极电极和用于铬电解氧化的阳极电极
- 专利标题： Electrode for electrolysis, positive electrode for ozone generation by electrolysis, positive electrode for persulfuric acid generation by electrolysis, and positive electrode for chromium electrolytic oxidation
- 专利标题（中）： 用于电解电极的电极，用于电解生成的臭氧的阳极电极，用于电解生成的酸性电极的阳极电极和用于铬电解氧化的阳极电极
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申请号： JP2010209763申请日： 2010-09-17
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公开(公告)号： JP2012062556A公开(公告)日： 2012-03-29
- 发明人: OKAZAKI TAKESHI , EZAWA NOBUYASU
- 申请人： Tanaka Kikinzoku Kogyo Kk , 田中貴金属工業株式会社
- 专利权人： Tanaka Kikinzoku Kogyo Kk,田中貴金属工業株式会社
- 当前专利权人： Tanaka Kikinzoku Kogyo Kk,田中貴金属工業株式会社
- 优先权： JP2010209763 2010-09-17
- 主分类号： C25B11/10
- IPC分类号： C25B11/10 ; C02F1/46 ; C02F1/461
摘要：
PROBLEM TO BE SOLVED: To provide an electrolysis electrode which has a high oxygen overvoltage, has extended service life and is used in electrolytic oxidation reactions.SOLUTION: The electrolysis electrode has an electrode surface layer formed from a valve metal oxide, and the substrate of the electrode surface layer comprises an alloy of a valve metal and noble metal (excluding Ag). The valve metal in the vicinity of the electrode surface has the elongated crystal grains, and the content of the noble metal within the range from the electrode surface to 10 μm in a perpendicular depth direction is ≤5 atom% and further, the valve metal of the electrode surface has an oxide membrane.
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