Abstract: On basis of Ti/SnSb doped electrodes, the doping elements, including Fe, Mn, Ni, Ru and Co,are used to prepare the Tibased electrodes by thermal brushing decomposition. The coating solution is prepared according to the atomic mass ratio of Sn, Sb and X(X representing a doping element) of 100∶10∶5. Then the electrodes are calcined at 475℃. The electrocatalytic performance of doped electrodes is studied. The results show that the thermal brushing decomposition could easily lead to a “cracking” phenomenon on the surface of the active coating, affecting the catalytic activity and lifetime of electrode. Compared with other doped electrodes, Ti/SnSbMn doped electrode has the longest lifetime.

Key words: electrochemistry engineering, doping, titanium matrix, electrocatalytic activity, wastewater treatment