Coated titanium anode and its material classification and application.
Coated titanium anode, customarily called DSA (Dimensionally Stable An2ode Dimensionally Stable Anode)
Electrode), also known as DSE (Dimensionally Stable Elec2trode), is a new type of insoluble anode material developed in the late 1960s. Traditional anode materials are roughly divided into three categories: platinum, graphite and lead alloy anodes. Platinum is expensive, graphite and lead alloy anodes have poor corrosion resistance during high-current electrolysis, high oxygen evolution potential, low electrochemical catalytic performance and large energy consumption, especially the toxic lead in the anode will dissolve in the solution and cause secondary pollution. ; and the performance of the coating decreases. Application of DSA-coated titanium anodes DSA-coated titanium anodes are mainly used in electrochemistry and electrometallurgy.
The fields of application of DSA-coated titanium anodes are: chlor-alkali industry, chlorate production, hypochlorite production, perchlorate production, persulfate electrolysis, electrolytic organic synthesis, electrolytic extraction of non-ferrous metals, electrolytic silver catalyst production, Copper foil production by electrolysis, mercury recovery by electrolytic oxidation, water electrolysis, production of chlorine dioxide, hospital sewage treatment, treatment of cyanide-containing wastewater in electroplating plants, disinfection of domestic water and food utensils, treatment of cooling circulating water in power plants, wool spinning Treatment of factory dyeing and finishing wastewater, treatment of industrial water, production of acid-base ionized water by electrolysis, copper plate galvanizing, rhodium-plating, palladium-plating, gold-plating, lead-plating, desalination of seawater by electrodialysis, preparation of tetramethyl hydroxide by electrodialysis Ammonium, molten salt electrolysis, battery production, cathodic protection, production of negative electrode foil, anodizing of aluminum foil, etc. It is widely used in chemical industry, metallurgy, water treatment, environmental protection, electroplating, electrolytic organic synthesis and other fields. In recent years, there has been a new trend in the application of DSA-coated titanium anodes in the surface treatment industry.
For example, adding a certain nanomaterial to the coating can improve the electrocatalytic activity of the DSA anode, or in some specific plating solutions, by adjusting the oxygen evolution potential of the DSA coating, the production of certain impurity ions can be suppressed to ensure The purpose of bath stability. With the deepening of the research on DSA-coated titanium anode, its application prospect will become more and more broad.
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