AN INVESTIGATION ON FAILURE BEHAVIOUR OF METALIC OXIDE ANODES
金属氧化物阳极的失效行为研究

The electrolysis failure behaviours of RuTiSn , RuTiIrSnCo , IrTiTa and Pt/Ti anodes in 1 mol/L H 2SO 4 have been investigated. It was shown that IrTiTa anode had the longest electrolytic life , the next was Pt/Ti and RuTiSn was the shortest. The dissolution and peeling of oxide coating , as well as the formation of passivative film between the substrate and the oxide coating were the main reasons for their failure. The damage of each anode was caused by the conction of many factors , but each anode had its own critical factor leading to failure. According to the causes of failure , the possible methods to improve the performance of the metallic oxide anode are presented.