Ru-Pd-Co-coated Titanium Electrode with Sn-Sb Interlayer

Abstract

The invention discloses a ruthenium-palladium-cobalt coating electrode containing a tin-antimony intermediate layer. The surface of the main body of a titanium plate is coated with 3-7 layers of tin-antimony oxide coating as the intermediate layer of the target electrode; the surface of the intermediate layer is coated with There are 15-24 layers of ruthenium palladium cobalt oxide coating as the surface layer of the target electrode. Compared with the traditional ruthenium dioxide coated titanium electrode (RuO2 / Ti), the coated titanium electrode of the present invention has higher oxygen evolution potential and lower Excellent chlorine evolution potential and longer service life can effectively improve the current efficiency and electrode service life of the electrocatalytic oxidation reaction system.

Description

technical field [0001] The invention belongs to the electrocatalytic oxidation reaction system anode coating material in the field of electrochemical technology, in particular to a ruthenium palladium cobalt coating titanium electrode containing a tin antimony intermediate layer. Background technique [0002] Coated titanium electrode, also known as DSA (Dimensionally Stable Anodes, DSA) electrode, is one of the most successful technological breakthroughs in the field of electrochemical research in recent years. Good removal effect. The anode is the place where the electrocatalytic reaction proceeds and active species are produced. Different anode materials will have a great impact on the type of catalytic reaction, the degradation efficiency of organic matter and the service life of the electrode. [0003] The traditional titanium-based ruthenium dioxide (RuO2 / Ti) that is often used as an anode in electrocatalysis technology is easily dissolved during use, resulting in a ...

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Problems solved by technology

Different anode materials will have a great impact on the type of catalytic reaction, the degradation efficiency of organic matter and the service life of the electrode

[0003] The traditional titanium-based ruthenium dioxide (RuO2 / Ti) that is often used as an anode in electrocatalysis technology is easily dissolved during use, resulting in a short service life of the electrode, and its electrocatalytic performance is not high, and it can catalyze and degrade pollution in water treatment. A large amount of oxygen will be precipitated during the treatment process, which will accelerate the destruction of the coating and reduce the efficiency of water treatment.

Other anode materials such as lead oxide (PbO2), tin oxide (SnO2), iridium oxide (IrO2) and multi-component coating electrodes, in addition to the shortcomings of low electrocatalytic performance and short service life, some materials also have Problems such as high price and harsh preparation conditions limit the use of these materials in the field of water treatment

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