Effect Of Ru-Ir-Ti Oxide Anodes On Electrochemical Properties With Sn Addition

The birth of titanium anodes have mostly promoted the development of salt water electrolysis, which is known as a technology revolution of Chlor-alkali industry. The appears of Dimentionally Stable Anode is one of the most important electrochemical industry invention in 20th century, at the same time has a great significance in electrochemical fields. In D.S.A, Ru anodes owns good foundation of preparation both in electrocatalytic activity and accelerated lifetime. The main searchwork of this experiment is that adding base metal Sn to Ru-Ir-Ti anodes coating, which achives the propose of cost saving, good electrocatalytic activity and long accelerated lifetime. At the same time, in process of preparation, this search prepar the Ru-Ir-Sn-Ti oxide anodes coating by thermal decomposition method and Sol-gel method, respectively. By microscopic analysis, metal oxide anodes coating through different methods preparation were studied to observed the differ of microscopic structure. And it was studied by the technolgy of electrochemical tests for the electrochemical features and accelerated lifetime of metal oxide anodes. Finally, we can identify the preparation methods both have good electrochemical property and industrial practical significance.In the process of searching, metal oxide anodes coating were prepared by thermal decomposition method and Sol-gel method, respectively. Surface morphology and mircrostructure have been investigated by SEM, EPMA, XRD and EPMA; Metal oxide anodes's electrocatalytic activity and durability were investigated by chlorine and oxygen evolution potential, open-circuit potential, polarization curve, electrochemical impedance, voltammetric charges, current efficiency and accelerated lifetime.The result shows that Ru-Ir-Sn-Ti oxide anodes coating by thermal decomposition method and Sol-gel method both have good electrocatalytic property. And the metal anodes's electrochemical property which was prepared by Sol-gel method are better than anodes prepared by thermal decomposition method. The metal oxide anodes coating's accelerated lifetime which prepared by Sol-gel method is longer than anodes coating's lifetime prepared by thermal decomposition method. And through the test of chlorine and oxygen evolution potential, open-circuit potential, polarization curve, electrochemical impedance, voltammetric charges and current efficiency, it shows that the electrocatalytic activity of metal oxide anodes coating prepared by thermal decomposition is better than anodes coating prepared by Sol-gel method.Based on the above result, we can inferred metal oxide anodes coating prepared by Sol-gel method in a double standard both in cost saving and using property shows a better superiority. The above results promote a reliable evidence of engineering practical application, which help improve metal oxide anodes's using property.