ELECTRODE FOR ELECTROLYZING WATER AND PRODUCTION THEREOF

摘要

PURPOSE:To produce an electrode for electrolyzing water wherein ozone is generated without deteriorating current efficiency by utilizing an electrode base body as an anode and utilizing a soln. contg. lead component suspended with fluororesin contg. sulfone group as an electrolyte and performing electrolysis. CONSTITUTION:After activating the surface of an electrode base body such as porous and corrosion resistant titanium, a conductive interlayer is preferably formed. This interlayer is obtained by applying the surface of the electrode base body with liquid contg. a compd. having a component for forming the interlayer and thermally decomposing it. The electrode base body which has this interlayer or has not it is utilized as an anode. An aq. soln. such as lead nitrate which has lead component suspended with fluororesin contg. sulfone group is utilized as an electrolyte and electrolysis is performed. Thereby PbO2 layer having fluororesin contg. sulfone group is preferably formed via the interlayer on the surface of the electrode base body. This PbO2 layer is preferably constituted of a two-layer structure which is formed of both an alpha-PbO2 layer on the electrode base body and a beta-PbO2 layer impregnated with the resin and positioned on the alpha-PbO2 layer. Thereby the electrode for electrolyzing water is obtained wherein reaction for uniformly generating ozone is performed as a whole with high current efficiency.