苯胺在SnO_2/Ti电极上的电化学氧化

The characteristic of electrochemical degradation of aniline on SnO₂/Ti anode have been studied. The results indicate that SnO₂/Ti anode doped with F plays an obvious role of electrocatalysis on the degradation of aniline different from that on Pt anode. The kinetics factors that influent the oxidation rates of aniline on SnO₂/Ti anode are determined by the dissolving of intermediate products on anodes. The dissolving of the organic film with intermediate products on the anode is the rate determining step. The effects of aniline concentration, pH of aniline solution and the current density on the rate of aniline degradation has been studied. Under the best condition, the most efficient rate of elimination of aniline(99.1% ) and current efficiency (99. 8% ) could be achieved. The complexity of the intermediate products, the basic category of the intermediate products consiste of the black film have been analyzed.